Gravitational waves were detected a century after Einstein predicted them.

Water expands when it freezes, which is why ice floats.

Fact #9 · Science

Time moves slower in stronger gravitational fields.

Fact #1821 · Science

Time moves slower in stronger gravitational fields.

Fact #1794 · Science

Time moves slower in stronger gravitational fields.

Fact #1753 · Science

The smallpox vaccine led to the global eradication of smallpox.

Fact #1197 · Science

The discovery of penicillin by Alexander Fleming revolutionized medicine.

Fact #1187 · Science

In 1924, a scientist attempted to transmit sound to plants to study their response.

Fact #993 · Science

Ants do not have lungs and breathe through small openings in their bodies.

Fact #351 · Science