Guest guest Posted June 4, 2002 Report Share Posted June 4, 2002 When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in 0 gravity. To combat this problem, NASA scientists spent a decade and $12 billion developing a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to over 300C. The Russians used a pencil. Quote Link to comment Share on other sites More sharing options...
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