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When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity. To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.
Not so often your right and your wrong again,Pencils break and there is nothing worse than a flying bit of graphite floating round the gaff.Or as well known a nib at a loose end.
