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... sort of electrical propulsion will be used. In general, the propellants are heated, controlled, and expelled through a nozzle. They may be simply heated and expelled, or ionized and expelled, or converted into plasma and expelled. Propellants may include hydrogen, deuterium, helium, nitrogen, argon, and xenon. But electrical propulsion requires great amounts of electrical power, and this must ...

The power of the Sun does not come from any burning process but is created as a result of nuclear fusion. This power to convert the mass of four hydrogen atoms into helium releases a huge amount of energy and has kept the Sun powered ... as new-found internal energy reserves drive its outer atmosphere to eventually engulf the orbits of Mercury and Venus. This phase may last a billion years until the helium in the ...

Media:19700076559_1970076559.pdf LANDING CHARACTERISTICS OF AN APOLLO-TYPE VEHICLE (2.5MB PDF) Category:Publications

Media:19750068725_1975068725.pdf PRELIMINARY DESIGN STUDY OF A LUNAR LOCAL SCIENTIFIC SURVEY MODULE (LSSM) (14MB PDF)

Media:19780070066_1978070066.pdf Manned Lunar Landing Through Use of Lunar Orbit Rendezvous Volume 2 (1MB PDF) Category:Publications

Media:Appetochap.pdf A Survey Of Various Vehicle Systems For The Manned Lunar Landing 1961 Category:Publications

Media:060407141946.pdf Nexus Concept of a Large Reusable Earth Launch Vehicle by Krafft Ehricke and Freeman D'Vincent (12MB PDF) Category:Publications

To view this in 3D use red/cyan glasses. Image:Redcyanglasses.jpg‎ Allow 30 seconds of acclimatisation before viewing. File:3dDiscovery.mp4 ---- Image:9781926837192.jpg '''Buy This Book''' http://www.apogeeprime.com/prime/bookpages/9781926837192.html Click here Category:Animation

File:69-07-21_Apollo_11_Tape_6_repeats_of_news.wav.mp4 Category:Audio Category:Apollo 11 Audio

Media:MA08_TE2.PDF Postlaunch memorandum of the 3rd Manned Orbital Space Flight Mercury Atlas 8/Sigma 7 Oct 23 1962 Category:Publications

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