Gravity is by far the weakest of the four forces — it's 10³⁶ times weaker than electromagnetism.

Dark matter is believed to make up most of the universe’s mass but has not been directly observed.

Fact #1594 · Science

Handwashing protocols significantly reduced hospital infections.

Fact #1214 · Science

DNA carries genetic information in living organisms.

Fact #37 · Science

In 1938, Otto Hahn's work led to the discovery of nuclear fission.

Fact #1015 · Science

Water is composed of two hydrogen atoms and one oxygen atom.

Fact #41 · Science

Practice can strengthen neural pathways in the brain.

Fact #968 · Science

Wood frogs can survive freezing by producing natural antifreeze chemicals.

Fact #862 · Science

The barometer measures atmospheric pressure.

Fact #1577 · Science