sia95-2notes - Unit 5 Space Exploration Science in Action...

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Science in Action Notes Unit 5 Space Exploration Space Links: NASA http://www.nasa.gov/home/index.html 2.0 Technological developments are making space exploration possible and offer benefits on Earth . http://www.astro.washington.edu/larson/Astro101/lectures/OriginTime/origin_universe.html 2.1 . Getting There: Technologies For Space Transport The gravitational escape velocity had to be achieved ( 28,000 km/h ), if humans were to venture into space. The Achievements of Rocket Science http://www.grc.nasa.gov/WWW/K-12/TRC/Rockets/history_of_rockets.html (History of Satellites) http://inventors.about.com/library/inventors/blsatellite.htm (Space Transport Firsts)) http://www.tbs-satellite.com/tse/online/thema_first.html 400 B.C - Archytas used escaping steam to propel a model pigeon along some wires 1 st Century - Chinese used gunpowder to propelled ‘flaming arrows’ 17 th Century - Polish General uses solid fuel rockets in war Early 1900’s - Konstantin Tsiolkovskii suggested liquid fuel be used for rockets 1920’s - Wernher Von Braun developed the V-2 rocket for war 1926 - Robert Goddard launched the world's first liquid-propellant rocket. Oct. 4, 1957 - Sputnik was launched by the Russians Nov, 1957 - Laika (a dog) survived in Earth orbit for 7 days 1961 - Explorer I launched by USA 1962 - Alouette launched by Canada 1969 - First man on the moon 1981 - First launch of the Shuttle The Science of Rocketry The science of rocketry relies on a basic physics principle that you learned in Grade 7. For every action – There is an equal and opposite reaction There are three basic parts to a Rocket: http://www.grc.nasa.gov/WWW/K-12/airplane/rktparts.html The structural and mechanical elements are everything from the rocket itself to engines, storage tanks, and the fins on the outside that help guide the rocket during its flight. The fuel can be any number of materials, including liquid oxygen, gasoline, and liquid hydrogen. The mixture is ignited in a combustion chamber, causing the gases to escape as exhaust out of the nozzle. The payload refers to the materials needed for the flight, including crew cabins, food, water, air, and people. The Future of Space Transport Technology
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This note was uploaded on 01/30/2012 for the course SCIE 027 taught by Professor Edward during the Fall '11 term at Broward College.

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sia95-2notes - Unit 5 Space Exploration Science in Action...

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