Science

Monday, 22 December 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Enceladus
There are geyser-like fissures on the surface of Enceladus that eject streams of water vapor and dust into its atmosphere at speeds of about 400 m/s.
The ejected material rises to an altitude of 1500 km above the moon's surface.
Large Magellanic Cloud
The next description of the galaxy appeared in Amerigo Vespucci's writings on his third expedition. He observed the object in the years 1503 - 1504.
Brain
There are approximately 100 billion neurons in the human brain.
Most neurons are found in the cerebellum, ranging from 55 to 70 billion. The cerebral cortex, or what makes us intelligent beings, is made up of 14 to 16 billion neurons.
Ganymede
The Moon is the only one in the Solar System that has a dipole magnetic field capable of creating a magnetosphere.
NASA
The Space Shuttle program launched on April 12th, 1981, was the fourth crewed program in NASA's history.
It launched a total of 135 missions and was the first program to reuse a spacecraft. Its main goal w ...
Nicotine
Nicotine is a natural insecticide.
Plants such as tobacco produce it to repel pests - nicotine interferes with the neurotransmitters of insects and kills them.
Milky Way
The solar system is 27.000 light years away from the center of the Milky Way.
It is located on the inner side of the Orion Arm, one of at least four arms of the galaxy. Their exa ...
Milky Way
It was only in 1610 that Galileo discovered that the Milky Way was made of stars.
Previously, it was believed that it could be part of the Earth's atmosphere or underexposed stars (it was believed that stars shine with light reflected from the Sun) that were in the Earth's shadow.
Liver
The 10% of the liver is fat.
Exceeding that amount, which is called a fatty liver, may lead to type 2 diabetes, in consequence.
Moon
The other side of the Moon is called the far side, not the "dark side" as some say, because each part of our satellite is darkened for exactly the same period.