Every fact, in one place.

A Useless Fact

The most sensitive cluster of nerves is at the base of the spine.

Sailing an Ocean on a Raft

In 1947, explorer Thor Heyerdahl sailed 4,300 miles across the Pacific on a balsawood raft to prove a theory.

The Glitch In Your Dreams

It's nearly impossible to read text or accurately tell time on a clock within a dream.

The 21-Gram Soul Theory

In 1907, a doctor claimed the human soul weighs 21 grams by weighing patients at the exact moment of their death.

A Useless Fact

No word in the English language rhymes with "MONTH".

A Useless Fact

There were 240 pedestrian fatalities in New York City in 1994.

The Secret to Sounding Smarter

Studies show that using simple, clear language makes people perceive you as more intelligent.

A Leader's Voice Secret #7487

Studies show that voters tend to prefer political candidates with lower-pitched voices, perceiving them as more competent and stronger.

A Useless Fact

14% of Americans have skinny-dipped with a member of the opposite sex at least once.

A Useless Fact

Sweden has the least number of murders annually.

Confuse Your Brain to Learn Faster

Mixing different subjects in one study session can boost your learning more than focusing on just one.

A Useless Fact

Your stomach has to produce a new layer of mucus every two weeks or it will digest itself.

Grief Can Literally Break Your Heart #7227

The intense grief of loss can physically stun your heart, a real medical condition called 'Broken Heart Syndrome.'

A Useless Fact

15 million blood cells are destroyed in the human body every second.

The Ultimate Integrity Test

Plato's 'Ring of Gyges' asks: if you had a ring that made you invisible, would you still act with integrity?

A Useless Fact

Lightning strikes the earth about 8 million times a day.

Your Brain's Built-In Optimism

Most humans have an 'optimism bias,' an unconscious belief that they are less likely to experience negative events than others.

The World's Most Powerful Light

The most powerful laser in the world is 10 quadrillion times brighter than the sun.

Meditation Literally Changes Your Brain

Scientific studies show that meditation can physically increase the gray matter in your brain, enhancing memory and learning.

The Sneaky Origin of Ambition

The word 'ambition' comes from a Latin term for candidates walking around ancient Rome to canvas for votes.

A Useless Fact

If you were to take a taxicab from New York City to Los Angeles, it would cost you $8,325.

Do Elephants Know Who They Are?

Elephants can recognize themselves in a mirror, a rare sign of self-awareness in the animal kingdom.

The Surprising Origin of Ambition

The word 'ambition' comes from a Roman practice of walking around to solicit votes.

A Useless Fact

An average human scalp has 100,000 hairs.