u/Alexander556

Years ago i watched a documentary about the north korean movie industry, there were a couple of short excerpts from NK Movies, one of them was about a schoolgirl, maybe 14 or so years old who tried to become a successfull athlete (running, no idea what category exactly), and if i remember correctly she was held back because her father was in debt, he had to pay a large sum back to the gouvernment. This information was given by another girl who was a rival of the mentioned girl. If i remember correctly then the girls were all wearing school uniforms with a pioneers scarf. Any Ideas which movie that was?

Iam interessted in the whole debt part, and being held back because of it.

Iam searching for the name of a specific mechanism which is used to turn a rotary into linear motion, i dont remember what exactly it was used for, but it is very interesting.
A small gear, has to move a short distance over a rack, and keep the same distance between the rack and it's own axis, it is driven by a much larger internal gear which has its axis below the rack. The small gear shouls look like an elypsis with additional parts. Any Ideas?

I have read many accounts about people recieving messages from Aliens etc. some even about science and real world objects, but so far these were either misinformations, or the people in question simply made them up. Does anyone know about a case where the Aliens told someone a fact which was not known at that time?