The brain has about 86 billion neurons and 100 trillion synaptic connections.

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

Fact #351 · Science

The introduction of birth control pills transformed reproductive health.

Fact #1223 · Science

Some earthquakes are too small to be felt but are detected by instruments.

Fact #828 · Science

The Earth's interior is layered into crust, mantle, and core.

Fact #338 · Science

Time moves more slowly in stronger gravitational fields.

Fact #1618 · Science

The Earth's inner core is primarily iron and nickel.

Fact #150 · Science

The Earth's atmosphere contains trace gases like argon.

Fact #288 · Science

Many coins are made of precious metals such as gold and silver which makes their value higher than face value.

Fact #1672 · Science