when a jar of water is flipped upside down and doesn’t spill, it’s because of air pressure, but I don’t understand why it doesn’t spill out.

Question

Here is a link to the experiment. https://www.reddit.com/r/Damnthatsinteresting/comments/174riz3/students\_find\_it\_witchcraft\_when\_the\_teacher/

In: 1

Answer 1

It has a metal gauze inside it so the surface tension between the sides of the holes in the gauze and the water is the factor most at play here.