Chess Knight Move
Find the title of movie, using the move of a chess knight. First letter is I. Length of words in solution: 9.Correct answers: 21
The first user who solved this task is Nasrin 24 T.
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Ballpen in space
When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion 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 used a pencil.