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Posts tagged with apollo

Live demo of skipping a spacecraft on the atmosphere

Apollo 8 ReentryApollo 8 Reentry by NASA Goddard Photo and Video (cc by)

Community member 'automatronic' made a great comment about Artemis 1's fiery re-entry to Earth. It's an amazing recounting of a fantastic engineering feat by NASA!

App Zap Flap

Wondering what exactly is blowing up over on Reddit, and why? Rhaomi has a seriously in-depth explainer.

06/12/23
by taz

many astronauts, cosmonauts and taikonauts have hauled their own Space Pens onto orbit

Apollo 12 Pacific RecoveryApollo 12 Pacific Recovery by NASA Goddard Photo and Video (cc by)

In a thread about the wonderful "writes upside down" spacepen, member eriko explains why pencils in space can be quite deadly and unsafe:

Realize that a piece of graphite between two conductors with enough current behind them becomes a light bulb. Briefly. This isn't good in sea level atmosphere, in a pure oxygen atmosphere, this is deadly. Gemini used mechanical pencils, which got rid of the wood, but left the graphite, and graphite+oxygen+spark=fire. Bad.

01/18/13
by mathowie

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