All facts — Page 72
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
There is a place on Earth where the sun doesn't set for 69 days.
In Utqiaġvik, Alaska, the sun stays above the horizon for 69 consecutive days in summer. In winter, the reverse…
The city of Venice is built on millions of wooden stakes.
Venice sits on millions of oak and larch wooden stakes buried in mud. The lack of oxygen in the mud prevents the wood…
The world's shortest commercial flight lasts just 90 seconds.
Operated by Loganair between the Orkney islands of Westray and Papa Westray in Scotland, the distance is just 2.7…
The human brain is nearly 60% fat.
It is the fattest organ in the human body. This high-fat content is crucial for the myelin sheath, an insulating…
The pleasant smell of rain has a scientific name: 'petrichor'.
It is caused by the release of oils from plants and a compound called geosmin (produced by soil bacteria) that is…
The hottest chili pepper in the world is the Pepper X.
Created by breeder Ed Currie, Pepper X averages over 2.6 million Scoville Heat Units. Eating it can cause severe…
The US Declaration of Independence was not mostly signed on July 4th.
It was adopted on July 4, 1776, but the actual physical signing by the delegates mostly took place on August 2, 1776.
The sandwich was invented for a man who didn't want to leave a gambling table.
In 1762, John Montagu, the 4th Earl of Sandwich, asked for meat served between two slices of bread so he could eat…
Winners of the ancient Olympic Games received olive wreaths, not gold medals.
The olive branch was a sacred symbol of peace and victory in ancient Greece. Gold, silver, and bronze medals were…
An eagle's vision is up to 8 times sharper than a human's.
They have massive pupils and a high density of light-sensitive cells in their retinas, allowing them to spot a rabbit…
The town of Boring, Oregon, is officially paired with the village of Bland, Australia.
Embracing their unfortunate and funny names, the two towns officially became 'sister cities' in 2013 to promote…
The oldest known recipe in the world is for beer.
Dating back over 3,900 years to ancient Sumeria, the recipe was written on a clay tablet as a poem honoring Ninkasi…
The bananas we eat today are genetic clones of each other.
Commercial bananas (Cavendish) are propagated through cuttings rather than seeds. This lack of genetic diversity…
The human appendix is not a useless organ; it stores good bacteria.
Known as a 'safe house', the appendix protects beneficial gut bacteria. After an illness like diarrhea, it helps…
Humans are the only animals that have chins.
Even our closest primate relatives, like chimpanzees and Neanderthals, lack a protruding chin. Scientists believe it…
The horned lizard shoots blood from its eyes as a defense mechanism.
When threatened by predators like coyotes, it increases blood pressure in its head and squirts a foul-tasting stream…
The mantis shrimp punches with the speed of a bullet.
Its club-like appendages accelerate as fast as a .22 caliber bullet, creating cavitation bubbles in the water that…
Hippopotamuses secrete a red, oily liquid that acts as a natural sunscreen.
Often mistakenly called 'blood sweat', this substance protects their sensitive skin from the harsh African sun and…
The oldest continuously operating university in the world was founded by a woman.
Fatima al-Fihri founded the University of al-Qarawiyyin in Morocco in 859 AD, which still operates today and is…
The longest mountain range on Earth is almost entirely underwater.
The mid-ocean ridge is a continuous submarine mountain system that stretches about 65,000 kilometers across the…
The Atacama Desert is the driest non-polar place on Earth.
Some weather stations in the Atacama have never recorded a single drop of rain. It is so arid and Mars-like that NASA…
Caesar salad was invented in Mexico, not Italy.
It was created in the 1920s by Italian-American chef Caesar Cardini in his restaurant in Tijuana, Mexico, to serve…
A day on Mars is called a 'Sol' and lasts 24 hours and 37 minutes.
Because a Martian day is slightly longer than an Earth day, scientists working on Mars rovers have to adjust their…
Goosebumps are an evolutionary leftover from when humans had more body hair.
The reflex makes body hairs stand up, which used to trap a layer of warm air for insulation or make our ancestors…