A Useless Fact
When sharks take a bite, their eyes roll back and their teeth jut out.
Every fact, in one place.
Our whole collection, newest first. Search it, or just scroll — each one is short enough to read in a breath. 6,804 so far.
Who Invented the Weekend? #fact 2368
The concept of a two-day weekend only became widespread in the early 20th century, largely thanks to labor movements.
The Memory Hack of Curiosity #2614
Being curious can boost your memory, helping you remember even boring information.
Fireflies' Dazzling Teamwork!
Certain firefly species collaborate by synchronizing their flashes in massive, brilliant light shows to attract mates.
When Animals Faced a Judge
In medieval Europe, animals could be put on trial for crimes, and some were even sentenced to death.
Peace Over Power #2658
Costa Rica has no standing army, having constitutionally abolished it in 1948 to fund education and healthcare instead.
The True Power of Saying 'No'
Saying 'no' to others is often a way of saying 'yes' to your own self-respect.
Forgiveness Boosts Your Health!
Holding a grudge can weaken your immune system, while forgiveness can boost it.
The Biology of Wisdom
Neuroscience suggests wisdom correlates with a thicker prefrontal cortex in the brain.
Faith Can Literally Change Your Brain
Neuroscience shows that deep faith and prayer can physically change your brain's structure, increasing gray matter in key areas.
The 20-Second Stress Hack
Hugging for just 20 seconds releases the hormone oxytocin, which can lower stress and boost your mood.
A Useless Fact
Butte County, South Dakota is the geographical center of the U.S.
A Useless Fact
A Czech man, Jan Honza Zampa, holds the record for drinking one liter of beer in 4.11 seconds.
A Useless Fact
The ZIP in “ZIP code” means Zoning Improvement Plan.
The Brain Science of Bravery
Brave people still feel fear; their brains are just better at using the prefrontal cortex to override the amygdala's fear response.
200 Muscles for Just ONE Step!
You use 200 muscles to take a single step.
A Useless Fact
The people of Israel consume more turkeys per capita than any other country.
A Useless Fact
During his entire life, Vincent Van Gogh sold exactly one painting, “Red Vineyard at Arles”.
The Gyroscope Inside Your Head
Your inner ear contains a tiny, fluid-filled system that works like a biological gyroscope to maintain your balance.
Faith is Older Than Farming #1063
The world's oldest known temple, Göbekli Tepe, suggests organized faith existed before the invention of agriculture.
Your Brain's Friendship Limit! ????
Your brain can only handle about 150 stable friendships, a concept known as Dunbar's number.
A Useless Fact
Samuel Clemens (Mark Twain) was born on and died on days when Halley’s Comet can be seen.
A Melted Candy Bar Changed Kitchens
The microwave was invented after a scientist noticed a candy bar in his pocket melted while he was working on a radar set.
A Useless Fact
Right handed people live, on average, nine years longer than left-handed people
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