I run forever, With a roarin...
I run forever, With a roaring call. Yet I have no throat, Or any legs at all. Rock wears away, Whilst I grow. You try to race me, And receive a blow. What am I?Correct answers: 36
The first user who solved this task is Manguexa Wagle.
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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.