USA From HMG. Payback time

I thought America was a made up place for slow news days..... Is it really real .... like the isle of man? Incredible.....
 
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They could have issued them white ones if they had a sense of humour :LOL:
 
A simple ball point as designed by Mr Biro would not work in space fro 2 reasons. [1] no gravity to keep ink in contact with the ball and [2] in the vacuum of space the ink would boil dry.


http://www.spacepen.com/Public/Technology/index.cfm[/QUOTE]

I confess to falling into the trap of posting from memory. :oops:

However I found this http://www.esa.int/esaCP/SEM9YN7O0MD_index_0.html which would appear to be a reliable source. That confirms that a standard ball point pen will work in space.

I have found other sites that mention that normal Lead pencils were used in the Mercury and Gemini missions. One of the reasons stated as looking for a replacement was that they were looking for a writing implement that was not flammable in the 100 Oxygen atmosphere.
 
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A pen actually saved the lives of neil armstrong and buzz aldrin on the first mission that landed man on the moon(apollo 11) it allowed them to take off from the moon surface used as a makeshift toggle to a breaker/switch.
 
A simple ball point as designed by Mr Biro would not work in space fro 2 reasons. [1] no gravity to keep ink in contact with the ball and [2] in the vacuum of space the ink would boil dry.


http://www.spacepen.com/Public/Technology/index.cfm[/QUOTE]

I confess to falling into the trap of posting from memory. :oops:

However I found this http://www.esa.int/esaCP/SEM9YN7O0MD_index_0.html which would appear to be a reliable source. That confirms that a standard ball point pen will work in space.

I have found other sites that mention that normal Lead pencils were used in the Mercury and Gemini missions. One of the reasons stated as looking for a replacement was that they were looking for a writing implement that was not flammable in the 100 Oxygen atmosphere.

100% pure oxygen?? I don't think so, oxygen is poisonous above certain levels.
 
Hmm, not very clear on my part. Pure oxygen is poisonous at any altitude. After all the atomsphere is ~80% Nitrogen.
 
I never understood why they used to fill the capsules with oxygen, even when the astronauts were wearing spacesuits.

they put a stop to it after a nasty fire.
 
Possibly because it was easy to bleed off a feed of oxygen from a propellant tank than to provide heavy compressed air storage tanks.
 
or to stop the astronauts coming to their senses before launch ;)
 
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