When NASA first started sending up astronauts, they quickly discovered that convensional ballpoint pens would not work in zero gravity.
To combat this problem, NASA scientists commissioned a $12 billion project 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 on their missions used pencils !
To combat this problem, NASA scientists commissioned a $12 billion project 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 on their missions used pencils !