All facts — Page 63
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
The world's first website is still online.
The first website was created by Tim Berners-Lee at CERN in 1991 to explain what the World Wide Web was. The page can…
The computer mouse was invented in 1964 by Douglas Engelbart.
The first computer mouse was built in 1964 by Douglas Engelbart at the Stanford Research Institute. It was made of…
The vulture's stomach produces an acid so strong that it can digest bones.
The pH of a vulture's stomach reaches values close to zero, more acidic than a car battery. This environment destroys…
The wood frog survives winter by freezing completely and coming back to life in spring.
The wood frog, common in the northern United States and Canada, withstands temperatures of minus 4 degrees Celsius…
There is a jellyfish that can revert to a juvenile state and avoid death.
Turritopsis dohrnii, known as the immortal jellyfish, when injured or stressed, transforms its cells into juvenile…
The naked mole rat feels no pain at all.
The naked mole rat is insensitive to a specific form of pain caused by acids, because it lacks the receptors…
The human body contains enough iron to make a nail about 7.5 centimetres long.
The iron in the human body, mostly in the haemoglobin of blood, totals between 3 and 4 grams. That amount would be…
The tongue print is unique to each person, just like a fingerprint.
Like fingerprints, the pattern of papillae and grooves on the tongue is unique to each individual. No other person…
Pineapple contains an enzyme that digests the tongue of whoever eats it.
Pineapple contains bromelain, an enzyme that breaks down proteins. When eating fresh pineapple, the enzyme attacks…
The discovery of coffee is attributed to a goat herder in Ethiopia.
According to legend, an Ethiopian herder named Kaldi noticed that his goats became agitated after eating red berries…
Angel Falls in Venezuela is the world's highest waterfall.
Angel Falls, in Venezuela, has a total height of 979 metres, of which 807 metres are an uninterrupted drop. It is the…
The Dead Sea is the lowest point of dry land on the planet.
The Dead Sea is located about 430 metres below sea level, on the border between Israel and Jordan. It is also one of…
Russia has 11 time zones, the highest number in the world.
Russia has 11 time zones, the highest number in the world. The country stretches more than 9,000 kilometres from east…
Cleopatra lived closer to the construction of the pyramids than to the invention of the smartphone.
Cleopatra died in 30 BC. The pyramids of Giza were built about 2,500 years earlier. The first modern smartphone…
During the First World War, enemy soldiers exchanged gifts and played football on Christmas 1914.
In December 1914, along the Western Front, British and German soldiers left their trenches, exchanged cigarettes and…
An average cumulus cloud weighs about 500 tonnes.
A typical cumulus cloud contains about 500 tonnes of water in the form of droplets. The weight does not fall on us…
All snowflakes have six sides, but no two are alike.
Snowflakes form from ice crystals that grow according to the hexagonal structure of the water molecule. That is why…
Hot water can freeze faster than cold water under certain conditions.
This phenomenon, called the Mpemba effect, was observed by a Tanzanian student in 1963. Under certain conditions, hot…
Bananas are slightly radioactive because of potassium.
Bananas contain potassium, and a small fraction of that potassium is the radioactive isotope potassium-40. Therefore…
Glass is not a liquid, it is an amorphous solid.
Contrary to popular belief, glass does not flow over time. It is an amorphous solid, with a disordered but rigid…
Water is called the universal solvent because it dissolves all substances.
Water is called the universal solvent because it dissolves more substances than any other common liquid. However, it…
The footprints left by astronauts on the Moon will disappear in a few years.
The Apollo astronauts footprints on the Moon can last millions of years, because there is no atmosphere, wind or…
Space officially begins about 100 kilometres above Earth.
The Kármán line, at about 100 kilometres altitude, is considered the boundary between Earth's atmosphere and space…
Bluetooth technology was named after a 10th-century Viking king.
The name Bluetooth comes from Harald Bluetooth, a king of Denmark who unified Danish and Norwegian tribes in the 10th…