|DCS# 2B30.30||NWU# F-14||Location: 1B1|
|title: Magdeburg Hemipheres|
aka: suction cups and lift a stool
Classic metal hemi-spheres are placed together and evaculated with a vacuum pump. They are very stongly held together by atmospheric pressure.
Similar demo can be done with two "dent pulling" suction cups.
A stool can be lifted by a sheet or rubber with a handle.
Would this work on the moon? (ie. in a vacuum?)
What does the force depend on?
Would the force be higher or lower at the top of a mountain?