Recent content by jyhghy

I understand that volume must stay the same but I can't understand why. If I imagine toothpaste inside the tube as a group of atoms. When I move some of them ( my hand squeezing) all the other atoms are moving as well in all directions (pressure). Is that Electromagnetic force or something that...

Thx all for answers. Could any of you explain please in simple words what causes particles of fluid or gas to expand (move) when they are under pressure (what force cause it)?

When I squeeze tube of toothpaste, I am working with 2 squeeze forces toward tube. Why it moves vertically from horizontally applied force (when I think of paste as a group of particles inside a tube I cannot imagine that) ?