All facts — Page 10
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
The characteristic smell of rain is called petrichor and is caused by soil bacteria.
Petrichor is produced when geosmin, a compound released by soil bacteria called actinobacteria, is released into the…
Bamboo can grow up to ninety one centimeters in a single day.
Certain species of bamboo, such as giant bamboo, are the fastest growing plants in the world. In ideal conditions of…
The Sahara Desert was once a lush, green savanna with lakes and rivers.
About six thousand years ago, during the African Humid Period, the Sahara was covered with vegetation, lakes, and…
The footprints left on the Moon by Apollo astronauts will remain there for millions of years.
The Moon has no significant atmosphere, which means there is no wind or water to cause erosion. Without these natural…
Saturn's rings are composed mainly of water ice, not solid rock.
Observations from the Cassini mission confirmed that Saturn's rings are made of billions of water ice particles…
Russia has more than eleven different time zones.
Due to its vast territorial expanse stretching from Europe to the Pacific, Russia spans eleven time zones, being the…
Lightning can strike the same place more than once.
Contrary to popular myth, lightning is attracted to high and conductive points. Tall buildings like the Empire State…
Cleopatra lived closer in time to the invention of the iPhone than to the construction of the pyramids.
The Great Pyramids were built around 2560 BC, while Cleopatra lived in the 1st century BC. The time difference…
A footprint left by an astronaut on the Moon can last millions of years.
The Moon has no atmosphere, wind, or liquid water to cause erosion. Without these erosive agents, marks on the lunar…
Ketchup was sold in the nineteenth century as medicine.
In the 1830s, ketchup was marketed as a cure for indigestion and other ailments, containing ingredients that would…
The smallest bone in the human body is located in the middle ear.
The stapes, located in the middle ear, measures only about three millimeters. It is essential for transmitting sound…
The driest place on Earth is in the Atacama Desert, Chile.
Some weather stations in the Atacama Desert have never recorded precipitation. The combination of cold ocean currents…
Ants do not have lungs or a centralized respiratory system.
Ants breathe through small openings called spiracles, located along their exoskeleton, which distribute oxygen…
The barcode was inspired by Morse code.
A graduate student heard his university dean wish for an automated system to read product information and adapted the…
There is a giant alcohol cloud in space.
In the Sagittarius B2 star-forming region, astronomers detected a cloud containing billions of liters of ethyl…
The human brain feels no pain, despite processing all pain signals.
Brain tissue itself lacks nociceptors, which are pain receptors. This is why brain surgeries can be performed with…
Giant sequoias depend on fire to reproduce.
The cones of giant sequoias need the intense heat of forest fires to open and release seeds. Fire also clears the…
Sound does not propagate in the vacuum of space.
Sound is a mechanical wave that requires a material medium, such as air, water, or solid, to propagate. In a vacuum…
The shortest war in history lasted less than an hour.
The Anglo-Zanzibar War of 1896 lasted between 38 and 45 minutes. The Sultanate of Zanzibar surrendered quickly after…
Hummingbirds are the only birds capable of flying backwards.
The anatomy of a hummingbird's wings allows it to beat its wings in a figure-eight pattern, generating lift in both…
The Moon is moving away from Earth at a rate of about three centimeters per year.
The tidal interaction between Earth and the Moon transfers energy, causing the lunar orbit to gradually expand. This…
Koalas have fingerprints so similar to human ones that they are hard to tell apart under a magnifying glass.
Although koalas are marsupials and humans are primates, both evolved to grip tree trunks and branches. That…
Cows form close friendships and become stressed when separated from their best friends.
Animal behaviour studies have shown that cows create strong social bonds with specific companions. When separated…
Pineapple contains bromelain, an enzyme that digests proteins and causes a tingling sensation on the tongue when consumed.
Bromelain is a mixture of enzymes that break down protein molecules. When we eat fresh pineapple, this enzyme starts…