When NASA began the launch off astronauts into space,
they found out
that the pens wouldn't work at zero gravity. (Ink
won't flow down to the writing surface)
In order to solve this problem, they hired Andersen
Consulting (Accenture today).
It took them one decade and 12 million dollars. They
developed a pen that worked at zero gravity, upside
down, under water, in practically any surface
including crystal and in a temperature range from
below freezing to over 300 degrees C.
But the russians did only use this pen...
c in the pic....