Gallium melts in your hand but can't dissolve other metals — though it does embrittle aluminum.

The human brain operates on about 20 watts of power.

Fact #1744 · Science

The discovery of DNA’s structure occurred in 1953.

Fact #1199 · Science

Insulin was first used to treat diabetes in the early 1920s.

Fact #1189 · Science

The Earth's atmosphere contains trace gases like argon.

Fact #288 · Science

Lightning can heat the air it passes through to temperatures hotter than the surface of the Sun.

Fact #5 · Science

The smallpox vaccine led to the global eradication of smallpox.

Fact #1197 · Science

Quantum particles can influence each other instantly across distance.

Fact #1747 · Science

Early dinosaurs were bipedal.

Fact #749 · Science