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How One Faulty Nitrogen-Purge Valve Forced SpaceX To Abort
wired.com 1 week, 2 days agoSpaceX engineers were able to trace the high-pressure problem that caused Saturday's launch to be aborted to a valve that controls the flow of nitrogen used to purge the engine before ignition. Wired aerospace reporter Jason Paur explains exactly what went wrong.
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Exploding Liquid Nitrogen: Where Does The Energy Come From?
wired.com 2 weeks agoIn a new YouTube video, physicists have some fun by dropping a bottle of liquid nitrogen into a garbage can full of water with rubber ducks on top -- and it all goes flying within seconds. Dot Physics blogger Rhett Allain explains how something so cold can generate so much force.


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