When NASA first started sending up astronauts, theyquickly discovered that ball-point pens would notwork in 0 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 surfaceincluding glass and at temperatures ranging from belowfreezing to over 300 C. The Russians used a pencil. Enjoy paying your taxes.