The library
Facts, checked.
No myth to bust here: just one fact worth knowing per video, with the short answer up top and the source for every claim listed below it.
Your Brain Is a 20-Watt Lightbulb
That little three-pound lump of tissue between your ears. Your brain is 2% of your weight but eats a fifth of your calories.…
A Honeybee's Dance Is a Treasure Map
The angle of the dance shows the direction to fly, relative to the sun. The length of the 'waggle' part tells them exactly how far away the food is.…
The First Computer Virus Just Wanted to Play
It was 1971. A programmer named Bob Thomas wrote a program called Creeper. Creeper was designed to move between the big, room-sized computers of the e…
History's Shortest War Lasted 38 Minutes
…
A Banana Is a Berry. A Strawberry Is Not.
A true berry develops from one single flower that has one single ovary. A banana grows from a flower with just one ovary.…
The Eiffel Tower Gets Taller Every Summer
The difference can be up to fifteen centimeters, or about six inches. The Eiffel Tower isn't one fixed height. It actually changes its size depending …
You Are Made of 9,000 Pencils
Carbon makes up about eighteen percent of your body. After water, it's the main ingredient.…
An Octopus Has Three Hearts. And Blue Blood.
…
This Star Spins 716 Times A Second
A neutron star is the crushed core left over after a giant star dies. A single sugar cube of neutron star material would weigh as much as a mountain.…
A Day On Venus Lasts Longer Than Its Year
Venus zips around in just 225 Earth days. One day lasts 243 Earth days.…
This Jellyfish Can Live Forever
There's a tiny jellyfish that ages backwards. Meet Turritopsis dohrnii.…