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Zero Gravity

When NASA first started sending up astronauts, they quickly
discovered that ball-point pens would not work in zero gravity.

To combat this problem, NASA scientists spent a decade and $12 billion
developing a pen that writes in zero gravity, upside down, on almost any
surface including glass and at temperatures ranging from below freezing to
over 300 C.

The Russians used a pencil.


Enjoy paying your taxes.
 
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