A jiffy is an actual unit of time equal to one hundredth of a second.

Gravitational waves were detected a century after Einstein predicted them.

Fact #1607 · Science

Vaccines train the immune system to recognize pathogens.

Fact #64 · Science

The Human Genome Project mapped the entire human genetic sequence.

Fact #1018 · Science

Positive reinforcement can strengthen certain behaviors.

Fact #964 · Science

The Ames room illusion distorts perceived size and distance.

Fact #1490 · Science

In 1996, Dolly the sheep became the first cloned mammal from an adult cell.

Fact #1019 · Science

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

Fact #351 · Science

In 2012, scientists confirmed the existence of the Higgs boson.

Fact #1012 · Science