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<title> NASA eClips: REALWORLD  </title> 
<link>http://www.nasa.gov/audience/foreducators/nasaeclips/search.html?terms=&amp;category=0100 </link> 
 <description>NASA eClips : REALWORLD :   Middle school students explore mathematics in action through Real World: Mathematics. </description> 
 <language>en-us</language> 
 <copyright>&#xA9; 2009 United States Government as represented by the Administrator of the National Aeronautics and Space Administration.  All Rights Reserved.</copyright> 
 <itunes:author>NASA eClips</itunes:author> 

<itunes:category text="Education"/> 
<itunes:category text="Education"> 
	<itunes:category text="K-12" /> 
</itunes:category> 
<itunes:category text="Science &amp; Medicine"/> 

	<itunes:category text="REALWORLD"/> 
	<itunes:image href="http://www.nasa.gov/images/content/309985main_realworld-podcast-art.jpg" /> 
	<itunes:explicit>no</itunes:explicit> 
	<itunes:keywords>NASA, education, aerospace, exploration, technology, science, space, engineering, mathematics, astronauts, environment, aviation </itunes:keywords> 
	<itunes:subtitle>  Middle school students explore mathematics in action through Real World: Mathematics.</itunes:subtitle> 

 	<itunes:owner> 
	<itunes:name>National Aeronautics and Space Administration</itunes:name> 
	<itunes:email>nasaeclips@nianet.org (NASA eClips)</itunes:email> 
	</itunes:owner> 
		<item>
		<title>Real World: Changing the Way We Explore New Worlds</title>
		<link>http://archive.org/download/NASARealWorldMath_HIADOverview_HD/NASARealWorldMath_HIADOverview_HD.mp4</link>
		<guid>http://archive.org/download/NASARealWorldMath_HIADOverview_HD/NASARealWorldMath_HIADOverview_HD.mp4</guid>
			<pubDate>2012-12-06 11:04:51</pubDate>
			<description>NASA engineers are using a unique new technology to overcome the challenges of entry, descent, and landing on a planetary body with an atmosphere.  See how Hypersonic Inflatable Aerodynamic Decelerators, or HIADs, can be used to land larger rovers at higher altitudes or safely bring cargo from the ISS back to Earth. </description>
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				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, STEM, HIAD, exploration, inflatable, hypersonic, aeroshell, entry, descent, landing,  altitudes, atmosphere, thermal protection system, relief maps, design, drag, ISS, International Space Station, Justin Green, Neil Cheatwood, Steve Hughes </itunes:keywords>
			</item>  
		<item>
		<title>Real World: 3-2-1 Testing!</title>
		<link>http://archive.org/download/NASARealWorldMath_IRVE-3_HD/NASARealWorldMath_IRVE-3_HD.mp4</link>
		<guid>http://archive.org/download/NASARealWorldMath_IRVE-3_HD/NASARealWorldMath_IRVE-3_HD.mp4</guid>
			<pubDate>2012-10-22 11:52:42</pubDate>
			<description>NASA engineers used diameter, surface area, and drag forces to test their most recent inflatable concept.  The Inflatable Re-entry Vehicle Experiment 3, or IRVE-3, provided a flight demonstration of inflatable technology. The successful flight test gave engineers new environmental data to improve existing models and simulations and design future inflatable vehicles. </description>
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				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, STEM, HIAD, exploration, inflatable, hypersonic, heat shield, entry, temperatures, atmosphere, thermal protection system, IRVE, IRVE-3, Inflatable Re-entry Vehicle Experiment, flight testing, diameter, drag force, shape, surface area, simulations </itunes:keywords>
			</item>  
		<item>
		<title>Real World: NASA Harnesses Half-Life</title>
		<link>http://archive.org/download/NASARealWorldMath_WhatIsRadioactiveDecay_HD/NASARealWorldMath_WhatIsRadioactiveDecay_Web4x3_H264.mp4</link>
		<guid>http://archive.org/download/NASARealWorldMath_WhatIsRadioactiveDecay_HD/NASARealWorldMath_WhatIsRadioactiveDecay_Web4x3_H264.mp4</guid>
			<pubDate>07 Feb 2013 15:57:26 EST</pubDate>
			<description>Learn about isotopes and radioactive decay. See how NASA uses the predictable decay of certain elements to power spacecraft in remote locations.  Find out why a Radioisotope Power System, or RPS, provides dependable energy for the Mars Science Laboratory.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://archive.org/download/NASARealWorldMath_WhatIsRadioactiveDecay_HD/NASARealWorldMath_WhatIsRadioactiveDecay_Web4x3_H264.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, solar system, radioactive, medical technology, Madame Curie, nuclear, energy, matter, particles, atoms, protons, neutrons, electrons, isotopes, radioisotopes, radioactive decay, half-life, Pu-238, element, Voyager, alpha particles, fuel, RPS, radioisotope power system, space, MSL, Mars Science Laboratory, Curiosity, exploration, percents, ratios, tables, JPL, radiation </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Comets - It's Done With Math</title>
		<link>http://www.archive.org/download/NASA_Real_World_Comets_HD/NASA_Real_World_Comets_cropped.mp4</link>
		<guid>http://www.archive.org/download/NASA_Real_World_Comets_HD/NASA_Real_World_Comets_cropped.mp4</guid>
			<pubDate>09 Apr 2013 11:56:46 EDT</pubDate>
			<description>NASA engineers are finding new uses for old spacecraft as a way to study comets.  Find out how a repurposed spacecraft can return to a comet for a second visit to uncover secrets about the formation of the solar system.  Use angular size to see just how big this comet really is!</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_Real_World_Comets_HD/NASA_Real_World_Comets_cropped.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, comets, solar system, orbit, ellipse, angular size, distance, tangents, scale, ratio, Deep Impact, Tempel 1, Comet Hartley 2, Stardust, Stardust Next, Comet Wild 2, Epoxi, coma, tail </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Legacy of NASA's Space Shuttle - Because It Flew</title>
		<link>http://www.archive.org/download/NASA_Real_World_Because_It_Flew_HD/NASA_Real_World_Because_It_Flew_cropped.mp4</link>
		<guid>http://www.archive.org/download/NASA_Real_World_Because_It_Flew_HD/NASA_Real_World_Because_It_Flew_cropped.mp4</guid>
			<pubDate>19 Apr 2013 13:59:37 EDT</pubDate>
			<description>Use a graph to learn more about the history of NASA's Space Shuttle Program.  Find out how mission complexity increased over time, leading to new careers and innovations that will launch us into the next stage of space exploration.  See how important the Shuttle was, just because it flew!</description>
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				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, Because It Flew, shuttle, orbiter, spacecraft, spinoffs, Sally Ride, Guion Bluford, mission specialist, payload specialist, careers, bar graphs, interpreting graphs, Teaching From Space, BIF </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Mercury's MESSENGER Reveals Mysteries</title>
		<link>http://www.archive.org/download/NASA__Real_World_Messenger_HD/NASA_Real_World_Messenger_cropped_Med.mp4</link>
		<guid>http://www.archive.org/download/NASA__Real_World_Messenger_HD/NASA_Real_World_Messenger_cropped_Med.mp4</guid>
			<pubDate>19 Apr 2013 14:00:17 EDT</pubDate>
			<description>How long is a day on Mercury?  Why does the planet have a 600 degree range in temperature? MESSENGER, NASA's first mission to Mercury in 30 years, will capture stunning imagery, determine the composition of the surface and measure Mercury's unusual magnetic field.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA__Real_World_Messenger_HD/NASA_Real_World_Messenger_cropped_Med.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, solar system, Mercury, orbit, time conversions, Mariner 10, angles, solar sailing, magnetic field, range, Messenger, Mercury Surface Space Environment Geochemistry and Ranging, trajectory </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Centripetal Force</title>
		<link>http://www.archive.org/download/NASA_Real_World_Centripetal_Force_HD/NASA_Real_World_Centripetal_Force_HD_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_Real_World_Centripetal_Force_HD/NASA_Real_World_Centripetal_Force_HD_512kb.mp4</guid>
			<pubDate>2010-11-24 12:10:26</pubDate>
			<description>Join astronauts on-board the International Space Station to learn more about centripetal force and why planets or moons and artificial satellites like the space station stay in orbit. Use math to find out if the artificial gravity in science fiction movies can be a reality.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_Real_World_Centripetal_Force_HD/NASA_Real_World_Centripetal_Force_HD_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, physics, physical science, centripetal force, orbits, ferris wheel, center-seeking, International Space Station, ISS, Teaching From Space, TFS, gravity, inertia, direction, acceleration, satellite, velocity, radius, circle, inverse proportion </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Heart Rate and Blood Pressure</title>
		<link>http://www.archive.org/download/NASA_Real_World_Heart_And_Blood_Pressure_HD/NASA_Real_World_Heart_And_Blood_Pressure_HD_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_Real_World_Heart_And_Blood_Pressure_HD/NASA_Real_World_Heart_And_Blood_Pressure_HD_512kb.mp4</guid>
			<pubDate>09 Apr 2013 15:53:07 EDT</pubDate>
			<description>Learn about the physiological effects reduced gravity environments have on the human body.  Use multiplication to calculate cardiac output and find out what effect space travel has on sensory-motor skills, stroke volume and heart rates of the astronauts.  </description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_Real_World_Heart_And_Blood_Pressure_HD/NASA_Real_World_Heart_And_Blood_Pressure_HD_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Teaching from Space, Science, Life Science, astronauts, biology, health, heart rate, blood pressure, International Space Station, ISS, sensory-motor, brain, cognitive, neurological, cardiac output, stroke volume, multiplication, equation, overhydration, blood volume, countermeasures, microgravity, TFS </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Longitude and Time Zones</title>
		<link>http://www.archive.org/download/NASA_eClips_Real_World_Longitude_Time_Zones_HD/NASA_eClips_Real_World_Longitude_Time_Zones_cropped_Med.mp4</link>
		<guid>http://www.archive.org/download/NASA_eClips_Real_World_Longitude_Time_Zones_HD/NASA_eClips_Real_World_Longitude_Time_Zones_cropped_Med.mp4</guid>
			<pubDate>09 Apr 2013 15:54:24 EDT</pubDate>
			<description>What determines how long a second, minute, or hour lasts? Learn about the development of the units of time and how they depend on the rotation of the Earth on its axis. Learn how time zones are related to lines of longitude.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eClips_Real_World_Longitude_Time_Zones_HD/NASA_eClips_Real_World_Longitude_Time_Zones_cropped_Med.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, space, ISS, time, time zones, prime meridian, longitude, degrees, TFS </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Robotic Arms</title>
		<link>http://www.archive.org/download/NASA_Real_World_Robotics_HD/NASA_Real_World_Robotics_HD_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_Real_World_Robotics_HD/NASA_Real_World_Robotics_HD_512kb.mp4</guid>
			<pubDate>09 Apr 2013 15:56:01 EDT</pubDate>
			<description>Join astronauts on-board the International Space Station as they look at the mass-handling capabilities and unique engineering design of the robotic arm that helps astronauts build, repair, investigate and more in situations too large, too dangerous or too remote for astronauts alone.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_Real_World_Robotics_HD/NASA_Real_World_Robotics_HD_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA eClips, NIA, Real World, middle school, education, video, mathematics, technology, science, engineering, physics, physical science, robotics, arm, International Space Station, ISS, Teaching From Space, TFS, satellites, Canadarm, Canadarm 2, spacewalks, tables, length, mass, remote manipulator system </itunes:keywords>
			</item>  
		<item>
		<title>Real World: STS-119 Brings More Power to the Space Station</title>
		<link>http://www.archive.org/download/nasa_eclips_073109/RW46_STS119_clean_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_073109/RW46_STS119_clean_512kb.mp4</guid>
			<pubDate>07 Oct 2010 13:42:10 EDT</pubDate>
			<description>Meet two teachers turned astronauts who had important roles in the mission to update the solar arrays on the International Space Station. Find out how STS-119 carried the giant arrays that will allow the station to house a crew of six in the future.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_073109/RW46_STS119_clean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Math, Video, Education, Kilowatt, Power, Solar, Arrays, ISS, Space station, Astronauts, Teachers, Joule, Spacewalks, Photovoltaic </itunes:keywords>
			</item>  
		<item>
		<title>Real World: What Time Is It In Space?</title>
		<link>http://www.archive.org/download/NASA_eClips_Real_World_Time_In_Space_HD/NASA_eClips_Real_World_Time_In_Space_cropped_Med.mp4</link>
		<guid>http://www.archive.org/download/NASA_eClips_Real_World_Time_In_Space_HD/NASA_eClips_Real_World_Time_In_Space_cropped_Med.mp4</guid>
			<pubDate>2010-08-05 12:50:30</pubDate>
			<description>The International Space Station, or ISS, orbits Earth once every 90 minutes. Learn how astronauts keep track of what time it is while on-board the ISS using Universal Time. Learn how students can talk to astronauts on the ISS using amateur radio.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eClips_Real_World_Time_In_Space_HD/NASA_eClips_Real_World_Time_In_Space_cropped_Med.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, space, ISS, time, time zones, Greenwich Mean Time, circadian cycle, ham radio, TFS </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Calculating Shuttle Launch Windows</title>
		<link>http://www.archive.org/download/RealWorldCalculatingShuttleLaunchWindows/Rw40windowOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldCalculatingShuttleLaunchWindows/Rw40windowOc.mp4</guid>
			<pubDate>07 Jun 2010 13:28:29 EDT</pubDate>
			<description>Learn how NASA engineers use mathematical equations to determine when to launch the space shuttle so it will successfully dock with the International Space Station.  Learn about gravity, the orbit plane and other factors that influence launch windows.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldCalculatingShuttleLaunchWindows/Rw40windowOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Video, Education, Mathematics, Technology, Science, Engineering, Physics, shuttle, ISS, International Space Station, orbiter, equations, speed, diameter, rotation, degrees, launch window, precess, docking, orbital plane, orbital mechanics, gravity </itunes:keywords>
			</item>  
		<item>
		<title>Real World: The Silent Airliner</title>
		<link>http://www.archive.org/download/RealWorldTheSilentAirliner/Rw22slientairOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldTheSilentAirliner/Rw22slientairOc.mp4</guid>
			<pubDate>28 May 2010 14:39:47 EDT</pubDate>
			<description>Learn how NASA engineers are working to design safer, faster, quieter aircraft that have less impact on the environment. Discover how to control sonic booms. See how students are encouraged to think and act like engineers through competitions and NASA internships.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldTheSilentAirliner/Rw22slientairOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, aeronautics, atmosphere, helicopters, supersonic, sonic boom, Concord, speed of sound, mach speed, research, competitions, NASA Fundamental Aeronautics Student Competition, design, wind tunnel, scramjet, flutter, sonic boom, supersonic, models, simulation, transonic </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Environmental Control on the International Space Station</title>
		<link>http://www.archive.org/download/RealWorldEnvironmentalControlOnTheInternationalSpaceStation/Rw48eclssClean_512kb.mp4</link>
		<guid>http://www.archive.org/download/RealWorldEnvironmentalControlOnTheInternationalSpaceStation/Rw48eclssClean_512kb.mp4</guid>
			<pubDate>26 May 2010 10:39:39 EDT</pubDate>
			<description>Learn how engineers turn perspiration into innovation on the International Space Station so astronauts can live and work comfortably. The Environmental Control and Life Support System, or ECLSS, regulates the environment, including temperature, humidity and breathable air.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldEnvironmentalControlOnTheInternationalSpaceStation/Rw48eclssClean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, space, International Space Station, ISS, ECLSS, relative humidity, metabolic load, water processing, recycling, oxygen, carbon dioxide, life support, environment, percents, equation, perspiration, moisture, condensation, health </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lunar Power Plant</title>
		<link>http://www.archive.org/download/RealWorldLunarPowerPlant/Rw47lunarpowerOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldLunarPowerPlant/Rw47lunarpowerOc.mp4</guid>
			<pubDate>28 May 2010 14:53:09 EDT</pubDate>
			<description>Learn about one of NASA's new innovations that could supply the huge amount of power needed for exploration. NASA engineers are working with the United States Department of Energy to perfect a nuclear fission system that is efficient and virtually hazard free.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldLunarPowerPlant/Rw47lunarpowerOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, space, equations, subtraction, percents, nuclear power plant, atomic number, periodic table, elements, protons, neutrons, electrons, heat, electricity, coolant, kilowatts, energy, nuclear reaction, fission, Stirling engine, atoms, isotopes, exploration </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Using Lab on a Chip Technology to Identify Microorganisms</title>
		<link>http://www.archive.org/download/RealWorldUsingALabOnAChipTechnologyToIdentifyMicroorganisms/Rw46locadClean_512kb.mp4</link>
		<guid>http://www.archive.org/download/RealWorldUsingALabOnAChipTechnologyToIdentifyMicroorganisms/Rw46locadClean_512kb.mp4</guid>
			<pubDate>26 May 2010 10:32:06 EDT</pubDate>
			<description>Listen in to a downlink with the crew on the International Space Station, or ISS, to learn about a recent experiment that helps astronauts monitor their environment. Find out about exponential multiplication and the benefits of new technology to keep the station clean.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldUsingALabOnAChipTechnologyToIdentifyMicroorganisms/Rw46locadClean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, space, International Space Station, ISS, bacteria, exponents, multiplication, astronauts, experiment, microorganisms, Obama, LOCAD, medicine, health, clean, germs </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Analog Testing in Extreme Environments</title>
		<link>http://www.archive.org/download/RealWorldAnalogTestingInExtremeEnvironmentsneemo/Rw51neemoOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldAnalogTestingInExtremeEnvironmentsneemo/Rw51neemoOc.mp4</guid>
			<pubDate>09 Apr 2013 16:05:50 EDT</pubDate>
			<description>See how NASA uses analog testing to simulate space exploration. Explore extreme environments like the Aquarius underwater laboratory in Key Largo, Florida. Find out how scientists use mathematical equations to determine an astronaut's center of gravity.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldAnalogTestingInExtremeEnvironmentsneemo/Rw51neemoOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, middle school, video, education, mathematics, technology, science, engineering, physics, physical science, NEEMO, Aquarius, exploration, center of gravity, analog testing, Key Largo, environments, equations, portable life support system </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Exploring the Lunar Electric Rover</title>
		<link>http://www.archive.org/download/RealWorldExploringInTheLunarElectricRover/Rw41lerClean_512kb.mp4</link>
		<guid>http://www.archive.org/download/RealWorldExploringInTheLunarElectricRover/Rw41lerClean_512kb.mp4</guid>
			<pubDate>27 May 2010 16:11:10 EDT</pubDate>
			<description>Join NASA at Desert RATS, or Research and Technology Studies, in Arizona to test drive the Lunar Electric Rover, or LER. Discover how LER's turning radius, ability to move in multiple directions, attached suits, and habitat capabilities optimize safety and exploration efficiency.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldExploringInTheLunarElectricRover/Rw41lerClean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, space, lunar electric rover, LER, rover, angles, ratios, speed, habitat, exploration, simulation, Desert RATS, transportation, EVA, extra vehicular activities, research </itunes:keywords>
			</item>  
		<item>
		<title>Real World: NASA and the Chesapeake Bay</title>
		<link>http://www.archive.org/download/RealWorldNasaAndTheChesapeakeBay/RwthechesapeakeOc-mpeg4ForNasa.mp4</link>
		<guid>http://www.archive.org/download/RealWorldNasaAndTheChesapeakeBay/RwthechesapeakeOc-mpeg4ForNasa.mp4</guid>
			<pubDate>09 Apr 2013 15:55:09 EDT</pubDate>
			<description>Learn how NASA uses Earth observing satellites to monitor conditions in the Chesapeake Bay over time. Information about pollution, eutrophication, land cover and watershed runoff helps water managers enact policies to improve the health of the Bay.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldNasaAndTheChesapeakeBay/RwthechesapeakeOc-mpeg4ForNasa.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, biology, life science, Chesapeake Bay Foundation, Earth observing systems, satellites, watershed, natural resources, estuary, LandSat, eutrophication, algae, oyster restoration, coordinate system, area </itunes:keywords>
			</item>  
		<item>
		<title>Real World: TriATHLETE - The Engineering Design Process in Action</title>
		<link>http://www.archive.org/download/RealWorldTri-athlete-TheEngineeringDesignProcessInAction/Rw41triathleteOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldTri-athlete-TheEngineeringDesignProcessInAction/Rw41triathleteOc.mp4</guid>
			<pubDate>14 May 2010 10:56:22 EDT</pubDate>
			<description>See the engineering design process in action at Desert RATS, or Research and Technology Studies, in Arizona. Learn about the next generation of the ATHLETE vehicle. See how the original design changed to allow a split into two robots and the addition of unique tools for exploration.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldTri-athlete-TheEngineeringDesignProcessInAction/Rw41triathleteOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, eClips, NIA, Real World, middle school, video, education, mathematics, technology, science, engineering, physical science, space, design process, robotics, robots, rovers, engineer, Desert RATS, geological surveys, geology, power systems, cargo, habitats, moon, exploration, TriATHLETE, ATHLETE, limb, research </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Shuttle Safety</title>
		<link>http://www.archive.org/download/nasa_eclips_110209/RW42_SubRip_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_110209/RW42_SubRip_512kb.mp4</guid>
			<pubDate>02 Nov 2009 15:10:09 EST</pubDate>
			<description>Learn about the safety measures implemented to protect the shuttle astronauts. Computer modeling and simulation is used to help engineers evaluate the probability of malfunctions in everything from shuttle valves to the thermal protection system.
</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_110209/RW42_SubRip_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, video, education, engineering, technology, science, math, data analysis, shuttle, safety, design, avionics, pascal units, atmospheric pressure, thermal protection, robotics, modeling, simulation, pressure, force, newton, probability </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lessons in Heavy Metal</title>
		<link>http://www.archive.org/download/nasa_eclips_091109/RW49_ARES_WELDING_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_091109/RW49_ARES_WELDING_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:30:09 EDT</pubDate>
			<description>Watch as NASA engineers use a special welding technique known as friction-stir welding to bond new composite metals used for the Ares I launch vehicle. See how this process adds strength to the material. Learn to convert degrees Fahrenheit to degrees Celsius.
</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_091109/RW49_ARES_WELDING_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, math, video, education, engineering, technology, physical science, measurement, welding, temperatures, Fahrenheit, Celsius, Ares, tensile strength, composites, plasticity, conversions, stir-friction </itunes:keywords>
			</item>  
		<item>
		<title>Real World: History of Winter - Abiotic Conditions</title>
		<link>http://www.archive.org/download/nasa_eclips_083109/RW_Abiotic_clean_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_083109/RW_Abiotic_clean_512kb.mp4</guid>
			<pubDate>09 Nov 2010 10:14:55 EST</pubDate>
			<description>Join scientists and teachers as they learn how to measure some of the abiotic conditions of winter. Find out about latent heat, low thermochrons can be used to collect data points and the importance of snow:water equivalents.
</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_083109/RW_Abiotic_clean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, math, abiotic conditions, latent heat, thermochrons </itunes:keywords>
			</item>  
		<item>
		<title>Real World:  Keeping the International Space Station in Orbit</title>
		<link>http://www.archive.org/download/RealWorldKeepingTheInternationalSpaceStationInOrbit/Rw44spacestationFixOc.mp4</link>
		<guid>http://www.archive.org/download/RealWorldKeepingTheInternationalSpaceStationInOrbit/Rw44spacestationFixOc.mp4</guid>
			<pubDate>29 May 2012 09:17:27 EDT</pubDate>
			<description>Each day, gravity pulls the International Space Station, or ISS, a little closer to Earth.  See how drag causes the ISS to slow down. Learn about the challenges of keeping the ISS in orbit and how NASA counteracts orbital decay. </description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/RealWorldKeepingTheInternationalSpaceStationInOrbit/Rw44spacestationFixOc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NIA, eClips, Real World, Middle School, Math, Video, Education, ISS, Space station, Gravity, Orbital, Decay, Sunspots, Graphing, Mass, Gravity, Weight, Drag </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Tools for Construction - NASA's Lunar Crane</title>
		<link>http://www.archive.org/download/nasa_eclips_071509/RW44LunarCrane_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_071509/RW44LunarCrane_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:33:14 EDT</pubDate>
			<description>Learn more about the innovative lunar crane being developed by NASA for use in heavy lifting on other worlds. See how composite materials are used to improve the mass: strength ratio and how variable degrees of rotation allow this versatile machine to move.
</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_071509/RW44LunarCrane_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, math, moon, crane, composite, LSMS, ratio, mass, weight, rotation </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Putting Together the Ares I-X</title>
		<link>http://www.archive.org/download/nasa_eclips_071509/RW37Ares1XAssembly_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_071509/RW37Ares1XAssembly_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:33:31 EDT</pubDate>
			<description>NASA centers from across the United States are working together to build the new Ares rocket. Find out how engineers use micrometer tolerances to be sure the parts fit together and how drag coefficients help predict the aerodynamics of the rocket flight test.
</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_071509/RW37Ares1XAssembly_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, middle school, video, math, Ares, drag, coefficients, aerodynamics, tolerances, flight, density, velocity </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lightning Protection for Launch Complex 39</title>
		<link>http://www.archive.org/download/nasa_eclips_062309/RWLightningRod_clean_ff_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_062309/RWLightningRod_clean_ff_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:33:59 EDT</pubDate>
			<description>See how NASA is using a rolling spheres lightning protection system to expand the cone of protection currently used on Launch Complex 39. Find out how the towers and catenary wires create an easier path for the lightning to get to the ground.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_062309/RWLightningRod_clean_ff_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, Middle School, lightning, protection, catenary wires, lightning rod, rolling spheres, cone of protection, area, electricity, clouds, Ares </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Self-Healing Materials</title>
		<link>http://www.archive.org/download/nasa_eclips_062309/RWSelfHealing_clean_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_062309/RWSelfHealing_clean_512kb.mp4</guid>
			<pubDate>09 Apr 2013 15:58:24 EDT</pubDate>
			<description>Learn about the new self-healing materials being developed at NASA. See how these polymers snap back after impact while the structural integrity of the material remains intact. Find out how scientists use math to calculate tensile strength.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_062309/RWSelfHealing_clean_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, NIA, Real World, Middle School, self-healing, polymer, monomer, organic, tensile strength, Surlyn, load-bearing, airplanes, structural integrity </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Preparing to Launch Ares I-X</title>
		<link>http://www.archive.org/download/nasa_eclips_052809/RW35AresI-X_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_052809/RW35AresI-X_512kb.mp4</guid>
			<pubDate>07 Oct 2010 10:45:58 EDT</pubDate>
			<description>Preparing for future space missions, NASA is testing the Ares rockets prototype, Ares I-X. By finding the vehicle&#8217;s center of gravity, engineers can calculate the exact mass of the vehicle. The forces felt by the astronauts during launch are similar</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_052809/RW35AresI-X_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, NIA, Constellaton, Ares I, center of gravity, acceleration, g-forces, rockets </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Altair</title>
		<link>http://www.archive.org/download/nasa_eclips_052809/RW30Altair_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_052809/RW30Altair_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:34:53 EDT</pubDate>
			<description>In future space missions, Altair will carry crew from Orion to the moon. An engine is being developed that uses deep throttling to control the amount of thrust coming out of the engine. Using mathematics principles, the engine lowers the vehicle and allow</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_052809/RW30Altair_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, NIA, Altair, Orion, deep throttling, thrust, engine, CECE, cryogenics </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Choosing the Right Lunar Excavator</title>
		<link>http://www.archive.org/download/nasa_eclips_052809/RW25_Lunar_Excavators_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_052809/RW25_Lunar_Excavators_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:35:46 EDT</pubDate>
			<description>See how NASA engineers use the design process to evaluate the best choice for a new lunar excavator. Three different models are tested on location in Hawaii where the soil on Mauna Kea Volcano is simiilar to that on the moon.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_052809/RW25_Lunar_Excavators_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, engineers, design process, moon, excavators, regolith, oxygen, Mauna Kea, insitu </itunes:keywords>
			</item>  
		<item>
		<title>Real World: NASA Inventions - Polyimide Foam</title>
		<link>http://www.archive.org/download/nasa_eclips_051309/RW36Polymide_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_051309/RW36Polymide_512kb.mp4</guid>
			<pubDate>09 Nov 2010 10:13:33 EST</pubDate>
			<description>Learn about the everyday applications of polyimide foam, one of NASA's commercial inventions of the year. This low-density foam can be used as a fire-resistant insulation for ships or to reduce airplane noise.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_051309/RW36Polymide_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, Real World, NIA, sound, decibels, polyimide, density, acoustic, insulation, fire-resistant, invention </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Space Lighting</title>
		<link>http://www.archive.org/download/nasa_eclips_051309/RW26SpaceLight_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_051309/RW26SpaceLight_512kb.mp4</guid>
			<pubDate>09 Nov 2010 10:19:32 EST</pubDate>
			<description>Join NASA engineers as they share the next generation of light emitting diodes, or LED, lighting. Find out how these energy efficient, longer lasting lights recently installed on the International Space Station will benefit us here on Earth.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_051309/RW26SpaceLight_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, NASA eClips, Real World, NIA, middle school, LED, lighting, light emitting diodes, ISS, photons, natural light, mood, benefits </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lunar Excavation Blade</title>
		<link>http://www.archive.org/download/nasa_eclips_040709/RW_Excavation_Blade_oc_ff_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_040709/RW_Excavation_Blade_oc_ff_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:37:32 EDT</pubDate>
			<description>Learn how NASA engineers use mass efficiency, a measure of size to productivity, to evaluate the excavation blade that could be used on future lunar missions. The blade can help astronauts build landing pads or protective berms.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_040709/RW_Excavation_Blade_oc_ff_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, engineers, excavation, mass efficiency, moon, outposts, landing pads </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Using Lunar Reactors</title>
		<link>http://www.archive.org/download/nasa_eclips_032709/RW_Resources_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_032709/RW_Resources_oc_512kb.mp4</guid>
			<pubDate>11 Sep 2009 14:37:52 EDT</pubDate>
			<description>Find out how NASA scientists, like explorers of old, plan to use the natural resources of new worlds to provide life-sustaining materials for the astronauts. During tests in Hawaii, scientists practice extracting oxygen from the lunar-like soil.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_032709/RW_Resources_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, moon, outpost, reactors, oxygen, natural resources, insitu </itunes:keywords>
			</item>  
		<item>
		<title>Real World: NASA's Lunar Reconnaissance Orbiter Mission</title>
		<link>http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Resources_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Resources_oc_512kb.mp4</guid>
			<pubDate>07 Oct 2010 10:59:19 EDT</pubDate>
			<description>Join NASA scientists for a look at the new Lunar Reconnaissance Orbiter, or LRO. Find out about the instruments that will make a comprehensive map of the moon and search for safe landing sites by collecting unprecedented amounts of data.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Resources_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, science, moon, LRO, reconnaissance, orbiter, landing sites, maps </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Mission to Mercury</title>
		<link>http://www.archive.org/download/nasa_eclips_022709/RW_MESSENGER_ff_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_022709/RW_MESSENGER_ff_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 10:59:38 EDT</pubDate>
			<description>Find out about NASA's innovative spacecraft that was launched to explore Mercury. Learn about gravity assist and see what scientists have already learned from the preliminary flybys, including evidence of volcanism and plate tectonics.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_022709/RW_MESSENGER_ff_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Mercury, Messenger, gravity assist, tectonics, volcanism, technology, heat shields, spacecraft </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lunar Reconnaissance Orbiter Resources</title>
		<link>http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Mission_oc_ff_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Mission_oc_ff_512kb.mp4</guid>
			<pubDate>21 Aug 2009 15:45:55 EDT</pubDate>
			<description>Get a new perspective on moon resources with NASA's Lunar Reconnaissance Orbiter. See how NASA plans to gather data about the unique lunar poles. Scientists will use the light reflected off the surface to identify different minerals on the moon.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_022709/RW_LRO_Mission_oc_ff_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Real World, NASA eClips, lunar, moon, reconnaissance, orbiter, resources, light, minerals, poles, LRO </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Global Cloud Observation Day</title>
		<link>http://www.archive.org/download/nasa_eclips_022309/RW_CLOUD_DAY_oc.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_022309/RW_CLOUD_DAY_oc.mp4</guid>
			<pubDate>09 Nov 2010 10:18:19 EST</pubDate>
			<description>Learn about precipitation and how clouds are formed. Find out why scientists study clouds and how you can help NASA collect cloud observation data as part of the Students' Cloud Observation OnLine, or S'COOL, Project.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_022309/RW_CLOUD_DAY_oc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, clouds, observations, S\'COOL, precipitation, ground truth </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Scarab, NASA's Newest Lunar Exploration Rover</title>
		<link>http://www.archive.org/download/NASA_eclips_021309/RW_SCARAB_oc.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips_021309/RW_SCARAB_oc.mp4</guid>
			<pubDate>22 Jun 2009 11:00:51 EDT</pubDate>
			<description>Find out why engineers are testing NASA's autonomous rover called Scarab. Scarab is equipped with drills for taking lunar soil samples and special wheels designed by Michelin to optimize ground contact pressure.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips_021309/RW_SCARAB_oc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Scarab, regolith, Michelin, tires, ground contact pressure, resources, moon </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Home Improvement - Space Station Style</title>
		<link>http://www.archive.org/download/nasa_eclips_02062009/RW_STS126_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_02062009/RW_STS126_oc_512kb.mp4</guid>
			<pubDate>26 Oct 2010 09:41:12 EDT</pubDate>
			<description>Join astronauts on a spacewalk to fix the solar arrays on the International Space Station, or ISS. Find out about new crew quarters, exercise equipment, a recycling system and an expanded kitchen that finally includes a refrigerator.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_02062009/RW_STS126_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, STS-126, solar arrays, ISS, space station, refrigerator, spacewalk, recycling, NIA, Real World, middle school, video </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Farewell to the Mars Phoenix Lander</title>
		<link>http://www.archive.org/download/nasa_eclips_02062009/RW_Phoenix_oc.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_02062009/RW_Phoenix_oc.mp4</guid>
			<pubDate>22 Jun 2009 11:01:56 EDT</pubDate>
			<description>See what tools were sent to Mars onboard the Phoenix Lander. Find out why scientists chose a lander to search for water ice on the red planet and what math was involved to slow Phoenix down enough to make a safe landing.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_02062009/RW_Phoenix_oc.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, Phoenix, landers, Mars, descent, water, math </itunes:keywords>
			</item>  
		<item>
		<title>Real World: The Math Involved in ARES</title>
		<link>http://www.archive.org/download/nasa_eclips_02022009/RW_ARES_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_02022009/RW_ARES_oc_512kb.mp4</guid>
			<pubDate>16 Jul 2009 10:39:39 EDT</pubDate>
			<description>Learn about ARES, the unmanned vehicle NASA plans to send to Mars that will fly around the surface collecting data about the red planet. Discover the mathematics used to design ARES.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_02022009/RW_ARES_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, UAV, ARES, Mars </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Designing Unmanned Aerial Vehicles</title>
		<link>http://www.archive.org/download/nasa_eclips_02022009/RW_UAV_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_02022009/RW_UAV_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:02:55 EDT</pubDate>
			<description>NASA is using new technology to design Unmanned Aerial Vehicles that collects data and tests experiments without putting pilots at risk. Learn about the mathematics involved in designing these airplanes.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_02022009/RW_UAV_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, UAV, airplanes </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Using Lunar Soil to Make Oxygen</title>
		<link>http://www.archive.org/download/nasa_eclips_mp4/RW_ISRU_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_mp4/RW_ISRU_oc_512kb.mp4</guid>
			<pubDate>07 Oct 2010 13:44:26 EDT</pubDate>
			<description>Learn how NASA plans to use lunar resources to provide astronauts with water and oxygen. Travel to Hawaii to see tests using a special reactor and a process called hydrogen reduction to release oxygen from the volcanic soil.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_mp4/RW_ISRU_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, oxygen, hydrogen reduction, volcanic, resources, moon, Hawaii, extraction </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lunar Landing Test Designs</title>
		<link>http://www.archive.org/download/nasa_eclips_mp4/RW_Gantry_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_mp4/RW_Gantry_oc_512kb.mp4</guid>
			<pubDate>27 Jul 2009 14:39:21 EDT</pubDate>
			<description>Discover how NASA uses a gantry so astronauts can practice safely landing spacecrafts on the moon. Learn about Orion, the exploration vehicle planned for missions to the moon and Mars.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_mp4/RW_Gantry_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, gantry, Orion, landing </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Satellites and Solar Eruptions</title>
		<link>http://www.archive.org/download/nasa_eclips_mp4/RW_STEREO_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_mp4/RW_STEREO_oc_512kb.mp4</guid>
			<pubDate>17 Aug 2011 16:11:15 EDT</pubDate>
			<description>Learn about twin satellites NASA launched to collect data about the sun. Find out why we study the sun and what scientists learn from these missions.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_mp4/RW_STEREO_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> NASA, STEREO, sun, solar flares, satellites </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Mathematics: The Deciding Factor for Lunar Habitats</title>
		<link>http://www.archive.org/download/Nasa_eClips_video/RW-LunarHabitats_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/Nasa_eClips_video/RW-LunarHabitats_oc_512kb.mp4</guid>
			<pubDate>09 Nov 2010 11:10:00 EST</pubDate>
			<description>Discover how NASA uses math to design lunar habitats for future missions to the moon. The final configuration will be determined by factors such as weight, dimensions, physical architecture and purpose.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/Nasa_eClips_video/RW-LunarHabitats_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> lunar habitats, moon, architecture, living in space, NASA </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Testing NASA's New Moon Robot</title>
		<link>http://www.archive.org/download/Nasa_eClips_video/RW-ATHLETE_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/Nasa_eClips_video/RW-ATHLETE_oc_512kb.mp4</guid>
			<pubDate>11 Mar 2013 15:46:51 EDT</pubDate>
			<description>Learn about the mobile robot NASA plans to use for future missions to Mars: the All-Terrain Hex-Limbed Extra-Terrestrial Explorer, or ATHLETE. This one-third scale model helps NASA see just what the robot can do.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/Nasa_eClips_video/RW-ATHLETE_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> exploration, moon, Athlete, NASA, robot, energy, motion, gravity, technology, nonliving </itunes:keywords>
			</item>  
		<item>
		<title>Real World: How the Hubble Telescope Is Powered in Space</title>
		<link>http://www.archive.org/download/nasa_eclips_mp4/RW_Hubble_Power_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_mp4/RW_Hubble_Power_oc_512kb.mp4</guid>
			<pubDate>19 Jan 2011 12:27:37 EST</pubDate>
			<description>Learn how NASA uses light from the sun to make electricity to keep the Hubble Space Telescope powered in space. Scientists use an equation to balance the power in the solar panels and batteries.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_mp4/RW_Hubble_Power_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> Hubble, telescope, batteries, solar power, energy, astronomy </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Monitoring Earth's Energy Budget with CERES</title>
		<link>http://www.archive.org/download/nasa_eclips_mp4/RW_CERES_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_eclips_mp4/RW_CERES_oc_512kb.mp4</guid>
			<pubDate>29 May 2012 09:28:59 EDT</pubDate>
			<description>Learn how NASA uses a data-collecting sensor, Clouds and Earth&#8217;s Radiant Energy System, or CERES, to study clouds and make accurate measurements of energy leaving Earth.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_eclips_mp4/RW_CERES_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> energy, satellite, CERES, energy budget, clouds, greenhouse effect </itunes:keywords>
			</item>  
		<item>
		<title>Real World: NASA and a Dinosaur Named Dakota</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-Dinosaurs_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-Dinosaurs_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:07:30 EDT</pubDate>
			<description>Learn how remote sensing is used to help paleontologists identify where fossils may be found. See how the discovery of a hadrosaur has enabled scientists to further their research on dinosaurs.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-Dinosaurs_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> paleontologists, dinosaurs, Dakota, hadrosaur, satellites, remote sensing, fossils </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Moon Dirt</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-Moon_Dirt_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-Moon_Dirt_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:08:06 EDT</pubDate>
			<description>Learn about the special characteristics of moon dirt. Go behind the scenes at the NASA lunar backhoe competition to see who designed the most efficient machine for moon digging.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-Moon_Dirt_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> moon, NASA, outpost, regolith, soil, excavation </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Hubble Wide Field Camera 3</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-Hubble_WFC_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-Hubble_WFC_oc_512kb.mp4</guid>
			<pubDate>09 Apr 2013 15:59:40 EDT</pubDate>
			<description>The new Wide Field Camera will allow researchers to see further in space than ever before. This camera will replace the current camera on the Hubble Space Telescope and will record objects the human eye cannot see.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-Hubble_WFC_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> Hubble, telescope, cameras, electromagnetic spectrum, light, ultraviolet, visible light, astronomy </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Hubble Repair Mission</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-Hubble_Repair_Mission_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-Hubble_Repair_Mission_oc_512kb.mp4</guid>
			<pubDate>09 Sep 2010 13:20:51 EDT</pubDate>
			<description>See how math and Newton's laws help engineers design tools and astronauts successfully train for the next Hubble Space Telescope repair mission.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-Hubble_Repair_Mission_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> Hubble, telescope, repair, tools, EVA, spacewalks </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Space Shuttle Thermal Protection System</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-Shuttle_Thermal_Protection_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-Shuttle_Thermal_Protection_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:09:37 EDT</pubDate>
			<description>Explore the protection system that allows the shuttle to go from frigid temperatures in space to extremely hot temperatures when entering Earth's atmosphere. See how these tiles made of sand protect the astronauts.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-Shuttle_Thermal_Protection_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> shuttle, NASA, tiles, atmosphere, Orbiter </itunes:keywords>
			</item>  
		<item>
		<title>Real World: JASON-2</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-JASON2_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-JASON2_oc_512kb.mp4</guid>
			<pubDate>02 Nov 2009 08:56:26 EST</pubDate>
			<description>Learn how the satellite, Jason 2, is able to use radar waves to determine the height of sea levels and evaluate the effects of global warming.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-JASON2_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> global warming, sea levels, radar, satellites, oceans </itunes:keywords>
			</item>  
		<item>
		<title>Real World: A-Train</title>
		<link>http://www.archive.org/download/NASA_eclips/RW-ATrain_oc_512kb.mp4</link>
		<guid>http://www.archive.org/download/NASA_eclips/RW-ATrain_oc_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:10:33 EDT</pubDate>
			<description>The A-Train is a group of satellites in orbit collecting atmospheric data . Measuring the same part of Earth's system within minutes of each other, the satellites examine air quality, cloud movement, and more.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/NASA_eclips/RW-ATrain_oc_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> satellites, NASA, air quality, Earth systems, clouds, atmosphere </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Space Weather</title>
		<link>http://www.archive.org/download/nasa_360/RW_SpaceWeather_OC_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_360/RW_SpaceWeather_OC_512kb.mp4</guid>
			<pubDate>29 May 2012 09:31:24 EDT</pubDate>
			<description>This NASA video segment looks at space weather and examines the major ramifications space weather can have on Earth.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_360/RW_SpaceWeather_OC_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> space, weather, radiation, solar storms, coronal mass ejections, aurora, plasma </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Hubble Thermal Blanket</title>
		<link>http://www.archive.org/download/nasa_360/RW_HubbleThermalBlanket_OC_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_360/RW_HubbleThermalBlanket_OC_512kb.mp4</guid>
			<pubDate>09 Nov 2010 09:58:15 EST</pubDate>
			<description>In this NASA video segment, learn how new technology and old-fashioned tailoring keep the Hubble Space Telescope in top shape so it can continue to gather data about the universe.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_360/RW_HubbleThermalBlanket_OC_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> Hubble, space, telescope, technology, NOBL </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Law of Conservation of Energy</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip9_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip9_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:11:48 EDT</pubDate>
			<description>Learn about the Law of Conservation of Energy and how energy changes from potential energy to kinetic energy. Review the procedure to calculate kinetic energy.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip9_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> mechanics, conservation, energy, Law of Conservation, kinetic energy, potential energy </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Work, Force, Energy and Motion</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip8_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip8_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:12:17 EDT</pubDate>
			<description>Learn how to calculate the force, energy, motion and work of an object using proper units of measurement. Find out how these properties compare with one other. Calculate gravitational potential energy.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip8_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> mechanics, work, force, energy, motion, properties, potential energy, kinetic energy </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Rectangular Coordinate System</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip21_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip21_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:12:48 EDT</pubDate>
			<description>Use a number line in a rectangular coordinate system. Identify horizontal and vertical axis lines, quadrants, coordinates, ordered pairs and integers. Example problems help review key concepts.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip21_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> coordinate system, axis, origin, quadrants, ordered pairs, integers </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Proportionality: Using Ratios and Scales</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip14_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip14_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:13:17 EDT</pubDate>
			<description>This NASA video segment gives a short review of proportionality. Learn how scale models are created as a cost-efficient way to design and study larger objects. Examples are used to support the presentation.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip14_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> proportionality, energy, motion, representation, ratios, scales, design </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Hurricane Hunters</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip11_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip11_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:13:47 EDT</pubDate>
			<description>This NASA video segment focuses on how scientists use satellites to collect data. These sets of data are then analyzed and used to predict storms.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clip11_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> hurricane, national data collection, air pressure, wind, temperature, moisture </itunes:keywords>
			</item>  
		<item>
		<title>Real World: How Gravity Affects Molecules</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip26_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip26_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:14:16 EDT</pubDate>
			<description>See how NASA runs experiments in reduced gravity environments and simulated weightlessness. Learn about polymers and use slopes and ratios to explain a relationship between gravity and convection.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip26_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> reduced gravity, molecules, microgravity, experiments, polymers, monomers, slope ratios, convection </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Scale Models and Ratios</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip16_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip16_HD_512kb_512kb.mp4</guid>
			<pubDate>09 Nov 2010 11:11:11 EST</pubDate>
			<description>This NASA video segment explains scale models, ratios, proportions and how to calculate problems with different units of measurement. Color animations clarify the use of ratios.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Space_Operations_Launch_Services_Clip16_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> ratios, fractions, scale models, calculation, units of measure, space </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Earth System Science</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clips34_35_36_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clips34_35_36_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:15:07 EDT</pubDate>
			<description>Learn about Earth System Science and how systems are formed when parts interconnecting with other parts make a whole. See how the use of graphs, charts and drawings help communicate thinking.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Science_Earth_Clips34_35_36_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> representation, earth system science, graphs, charts, earth </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Lunar Habitats</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Exploration_Lunar_Habitats_Clip2_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Exploration_Lunar_Habitats_Clip2_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:15:30 EDT</pubDate>
			<description>Learn how inflatable structures may be used as mobile living quarters for astronauts when NASA returns to the moon and then travels to Mars. Explore one inflatable model made of Kevlar.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Exploration_Lunar_Habitats_Clip2_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> moon, lunar habitat, inflatable outpost, space, Kevlar </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Aircraft and Spacecraft Landing Tests</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Exploration_Exploration_Vehicles_Clip2_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Exploration_Exploration_Vehicles_Clip2_HD_512kb_512kb.mp4</guid>
			<pubDate>27 Jul 2009 14:42:05 EDT</pubDate>
			<description>Learn how NASA experts use a gantry to test the design of aircraft and spacecraft returning to Earth. See the new design of Orion, the crew exploration vehicle planned for NASA's return to the moon.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Exploration_Exploration_Vehicles_Clip2_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> gantry, spacecraft testing, design, Orion, exploration vehicle, aviation, airplane testing </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Solar Power on Earth</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip3_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip3_HD_512kb_512kb.mp4</guid>
			<pubDate>01 Feb 2011 11:13:24 EST</pubDate>
			<description>Learn how NASA-inspired technologies produce solar power here on Earth. Go behind the scenes at the "Solar Decathlon," a competition to design a solar-powered house. Explore the benefits of solar energy.</description>
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				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> solar power, fossil fuel, environment, technology, solar decathlon, fuel sources </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Solar Power in Space</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip2_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip2_HD_512kb_512kb.mp4</guid>
			<pubDate>26 Oct 2010 09:50:49 EDT</pubDate>
			<description>Learn how NASA technologies use alternative energy. Solar sails propel spacecraft through space. The International Space Station, or ISS, catches sunlight to provide electricity and oxygen to the station.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip2_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> solar power, wind, fossil fuels, technologies, decathlon, International Space Station, ISS </itunes:keywords>
			</item>  
		<item>
		<title>Real World: How the Electric Car Gets its Power</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip1_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip1_HD_512kb_512kb.mp4</guid>
			<pubDate>01 Feb 2011 11:29:44 EST</pubDate>
			<description>Learn how engineers and scientists are working to develop more efficient and long-lasting batteries to solar energy. Compare an electric car, which operates on lithium ion batteries, to cars that use fossil fuels.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Green_Clip1_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> environment, lithium batteries, ion, electric cars, technology </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Power Tools in Space</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip9_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip9_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:17:32 EDT</pubDate>
			<description>Learn how household tools have been used in space missions. Find out more about how astronauts use cordless power tools to perform tasks like tightening screws in space and collecting moon rocks.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip9_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> power tools, cordless, space missions, astronauts, space </itunes:keywords>
			</item>  
		<item>
		<title>Real World: Chemistry and Advanced Propulsion Technologies</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip8_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip8_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:17:53 EDT</pubDate>
			<description>The Variable Specific Impulse Magnetoplasma Rocket, or VASIMR, uses plasma for rocket propulsion. Review the four states of matter and explore the make-up of atoms, electric and magnetic fields and radiation.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip8_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> aviation, variable, VASIMR, Impulse Magnetoplasma Rocket, propulsion, state of matter, atoms, electric and magnetic </itunes:keywords>
			</item>  
		<item>
		<title>Real World: US Standard System of Measurement vs. Metric System</title>
		<link>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip15_HD_512kb_512kb.mp4</link>
		<guid>http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip15_HD_512kb_512kb.mp4</guid>
			<pubDate>22 Jun 2009 11:18:15 EDT</pubDate>
			<description>Learn about different types of measurement and measurement tools. Compare the US standard system of measurement to the metric system.</description>
			<enclosure type="video/mpeg" duration="1234567" url="http://www.archive.org/download/nasa_flv/NASA_Aeronautics_Design_Technology_Clip15_HD_512kb_512kb.mp4"  /> 
				<itunes:author>NASA eClips</itunes:author>  
			<itunes:keywords> decimal, conversions, measurement, aviation, space, history of measurement </itunes:keywords>
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