I operate without noise, I can create pressure but do not touch. What am I?

Category: Science · Difficulty: hard

Hint: Consider the absence of something common.

Answer

A vacuum

Explanation

A vacuum creates pressure differences and can exert force without any sound or physical contact.

This is a hard science riddle — a tricky one that takes a little thought. The answer is A vacuum.

More Science riddles

All Science riddles · Riddles with answers · Home