When NASA-USA started sending astronauts into space, they found that ordinary pen / ball point / pen, can not be used in zero gravity (because the ink can not flow down ..) To resolve this problem, there are 2 versions of the story. First, it takes a decade and 12 million dollars until they finally found a pen that can be used in graviatsi zero, in the inverted position, in the water, or in temperatures near freezing to 300 degrees Celsius. Second Version, NASA purchased from Fisher. Fisher takes approximately 2 years and ± 2 Million Dollars to create the same pen. Pens that cost only USD 50-75/pcs time.
Russia, at the time facing the same problem .....
they use a PENCIL!
How in your opinion? we certainly do not want to do such a silly instead. Things like this should underlying the way we solve a problem