All facts — Page 14
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
Fresh cranberries bounce when they are fully ripe.
Farmers use machines that bounce the berries to separate the ripe ones from the damaged ones. Air pockets inside the…
Pineapple contains an enzyme that breaks down proteins, making your mouth tingle.
Bromelain digests the proteins in the mucous membranes of your mouth while you chew. It is the only well-known fruit…
The Diomede Islands are less than four kilometers apart but have a twenty-one hour time difference.
The International Date Line passes exactly between the two islands. Big Diomede belongs to Russia and Little Diomede…
Napoleon Bonaparte was once attacked by a horde of domestic rabbits.
To celebrate the Treaties of Tilsit, his chief of staff organized a hunt. Instead of wild hares, they bought domestic…
The shortest commercial flight in the world lasts about fifty-seven seconds.
The route connects the islands of Westray and Papa Westray in Scotland. The distance is only two point seven…
Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramids.
The Great Pyramid of Giza was completed around twenty-five sixty BC. Cleopatra lived around thirty BC, placing her…
Bananas are naturally slightly radioactive due to their potassium content.
They contain potassium-40, an unstable isotope that decays by emitting radiation. The dose is so small that you would…
A single average-sized cloud can weigh more than four hundred and fifty thousand kilograms.
The weight comes from liquid water suspended in the atmosphere. Despite this huge mass, the cloud floats because the…
There are only about twenty to thirty grams of francium in the Earth's crust at any given time.
Francium is extremely unstable and decays rapidly into other elements. It is continuously produced by the decay of…
A teaspoon of a neutron star would weigh about a billion tons on Earth.
Neutron stars are the collapsed cores of massive stars. Gravity crushes the matter so hard that atoms lose their…
There is a giant cloud of alcohol near the center of the Milky Way.
The Sagittarius B2 molecular cloud contains massive amounts of vinyl alcohol and ethanol. Although the concentration…
The footprints left on the Moon by astronauts will remain there for at least one hundred million years.
There is no wind or water on the Moon to cause erosion. The only thing that will very slowly erase them is the…
The world's first computer mouse was made of wood.
It was invented by Douglas Engelbart in nineteen sixty-four. The wooden box contained two metal wheels that…
About ninety percent of the world's currency exists only as digital data on servers.
Physical cash in circulation is only a tiny fraction of global wealth. The vast majority of transactions and savings…
Wombat poop is shaped like perfect cubes.
Wombat intestines have walls with varying elasticity, which molds the waste into cubes. This shape prevents the poop…
Crows can recognize human faces and hold grudges.
Studies show that crows remember people who threatened them and can pass this distrust to their offspring and other…
The immortal jellyfish can revert its life cycle to the polyp stage.
When facing physical stress or starvation, Turritopsis dohrnii transforms its adult cells back into stem cells…
The wood frog freezes solid in winter and thaws in spring.
Its liver produces large amounts of glucose that acts as a natural antifreeze. This protects the cells from damage…
Butterflies taste their food through their feet.
The taste receptors are located on the bottom of their feet. By landing on a leaf, they immediately know if it is the…
Humans share about sixty percent of their DNA with bananas.
Many of the basic genes for cellular function and multiplication are common to all living things. This genetic…
The human brain consumes about twenty percent of the body's total energy.
Despite accounting for only two percent of body weight, the brain requires a huge amount of glucose and oxygen to…
Humans are the only known animals that blush.
Facial blushing is an involuntary response of the sympathetic nervous system to social emotions like embarrassment or…
People are slightly taller in the morning than at the end of the day.
During the day, gravity compresses the cartilage between the spinal vertebrae. At night, while sleeping horizontally…
Carrots were originally purple and only became orange in the sixteenth century.
The wild carrot was purple or yellow. Dutch farmers crossbred mutant varieties to create the orange carrot in honor…