All facts — Page 8
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
Pineapple contains an enzyme that digests proteins in your mouth.
Pineapple possesses bromelain, an enzyme that breaks down protein chains. When you eat fresh pineapple, this enzyme…
Cashews are never sold in their shells due to their toxicity.
The cashew shell contains urushiol, the same toxic resin found in poison ivy. For this reason, cashews undergo a…
France has the most time zones of any country.
Due to its numerous overseas territories scattered across the globe, such as French Polynesia and French Guiana…
Cleopatra lived closer in time to the Moon landing than to the construction of the pyramids.
The Great Pyramid of Giza was built around twenty-five hundred BC. Cleopatra ruled in the first century BC, and the…
The first computer programmer in history was a woman from the nineteenth century.
Ada Lovelace wrote the first algorithm intended to be processed by a machine, Charles Babbage s Analytical Engine, in…
A teaspoon of soil contains more microorganisms than there are people on Earth.
Soil is one of the most complex ecosystems on the planet. A single teaspoon of healthy soil can contain billions of…
The characteristic smell of rain has a scientific name called petrichor.
Petrichor is produced by oils released by certain plants during dry periods and by a substance called geosmin…
A teaspoon of a neutron star would weigh billions of tons on Earth.
Neutron stars are the incredibly dense remnants of massive stars that have collapsed. Their matter is so compacted…
The footprints left on the Moon by astronauts will remain there for millions of years.
The Moon has no atmosphere, wind, or liquid water, which are the main agents of erosion on Earth. Without these…
The first documented computer bug was a real moth found in a relay.
In nineteen forty-seven, Grace Hopper's team found a moth trapped in a relay of the Harvard Mark II computer. The…
The QWERTY keyboard was originally designed to prevent key jamming.
In early typewriters, adjacent keys used together would jam frequently. The QWERTY layout separated the most common…
The first webcam was invented to monitor a coffee pot at a university.
In nineteen ninety-one, researchers at the University of Cambridge created a camera pointing at the laboratory coffee…
Wombat feces naturally have a cubic shape.
Wombats are the only known animals to produce cube shaped feces. This occurs due to variations in the elasticity of…
Pineapple contains an enzyme that digests proteins and causes a tingling sensation in the mouth.
Fresh pineapple contains bromelain, a group of enzymes that break down proteins. When we eat the fruit, this enzyme…
Humans are bioluminescent and emit light in the dark.
The human body emits a small amount of visible light as a result of metabolic reactions. However, this light is about…
Cashews are never sold in their natural shells.
The cashew shell contains urushiol, the same toxic oil found in poison ivy. For this reason, cashews are always…
The characteristic smell of rain on dry soil has a specific scientific name.
This aroma is called petrichor. It is produced mainly by a chemical substance called geosmin, which is released by…
The QWERTY keyboard was designed to prevent mechanical typewriters from jamming.
The QWERTY layout was created to physically separate the most commonly used letter pairs in the English language…
Butterflies use their feet to taste plants before laying eggs.
Butterflies have taste receptors located on their feet. When they land on a leaf, these receptors analyze the…
The cornea is the only part of the human body that does not receive blood.
The cornea needs to remain completely transparent to allow light to pass through. To avoid the formation of blood…
Apples float in water because they are composed of twenty five percent air.
The cellular structure of the apple contains numerous microscopic air spaces between the cells. This composition…
The Dead Sea is not technically a sea, but rather a saltwater lake.
Despite its name, the Dead Sea is an endorheic lake, meaning it has no outlet to the ocean. The water evaporates…
The shortest war in history lasted only thirty eight minutes.
The Anglo Zanzibar War occurred in 1896. The conflict began at nine in the morning and ended at nine thirty eight…
Bamboo is technically a type of grass and not a tree.
Bamboo belongs to the Poaceae family, the same family as wheat and corn. Some bamboo species are the fastest growing…