The fastest recorded tennis serve exceeded 150 miles per hour.

Reading a physical book before bed improves sleep quality more than reading on a screen.

Fact #3908 · Culture

Biomass burning — including agricultural fires — produces more greenhouse gas than global aviation.

Fact #5226 · Culture

Particles can exist in multiple states until observed.

Fact #1913 · Culture

Brandon Lee died during filming due to a prop gun malfunction.

Fact #3196 · Culture

Particles can exist in multiple states until observed.

Fact #1804 · Culture

The first novel written on a typewriter was The Adventures of Tom Sawyer by Mark Twain in 1876.

Fact #3818 · Culture

Prehistoric cave paintings provide insight into early humans.

Fact #699 · Culture

Particles can exist in multiple states until observed.

Fact #2052 · Culture