What happens if you shake canned air?

According to 3M, which manufactures and sells compressed air canisters for dust removal, shaking or tilting the can may result in propelled liquid instead of...

What is the chemistry of chocolate?

Yes, because of the chemicals in chocolate that affect the brain: caffeine, a stimulant. Theobromine, a mood-lifter. Tryptophan, which helps the brain make...