Alcohol is the only macronutrient that provides calories (7 kcal/g) while also impairing metabolism.

The Earth's atmosphere scatters blue light, making the sky appear blue.

Fact #245 · Science

The discovery of anesthesia allowed painless surgical procedures.

Fact #1230 · Science

The Stanford marshmallow experiment studied delayed gratification in children.

Fact #990 · Science

Practice can strengthen neural pathways in the brain.

Fact #968 · Science

Some bacteria can survive in extreme environments such as deep-sea vents.

Fact #257 · Science

Lightning can heat air hotter than the surface of the Sun.

Fact #1807 · Science

Fossilized footprints provide evidence of dinosaur behavior.

Fact #688 · Science

The MRI scanner improved internal medical imaging.

Fact #1587 · Science