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, underwater,
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.
Loading ...