NASA’S BALL – POINT PEN …. HANDWRITING IN THE SKY …

When NASA started sending astronauts into space they quickly discovered that the ball-point would not work in zero gravity.
To combat this problem, Congress approved a program and NASA scientists spent a decade and over $165 million developing a pen that writes in zero gravity, upside down, on almost any surface and at temperatures ranging from below freezing to over 300 C.
 Food for thought !?!
The Russians used a pencil . . . 
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