Science

Sunday, 31 May 2026
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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Moon
The Moon always faces the Earth with the same side.
This is because our natural satellite is in synchronous rotation with the Earth. A long time ago, th ...
Amber
It has been used as a gemstone since antiquity.
Once polished, it glistens and resembles a gemstone.
Aurora
Auroras are not only present on our planet.
They were observed on all the giant planets in the solar system: Jupiter, Saturn, Uranus and Neptune.
Earth
The Earth orbits the sun in an elliptical orbit in 365.235 days.
The average distance from the Sun is 150 million km and ranges from 147.09 million km at the periapsis to 152.09 million km at the apsis.
Ganymede
It was discovered on January 11, 1610, by Galileo Galilei or a few days earlier by Simon Marius.
In his work from 1614, Marius claimed that he made his discovery a few days before Galileo, and Galileo accused him of lying and plagiarism.
Silver
Silver has been used in photographic technology.
It is used there to obtain silver halides (primarily silver bromide) used as photosensitive substances.
Brain
Physical activity is equally important for the proper functioning of the brain, as it helps to create new nerve connections.
Medium-intensity aerobic exercise is considered the most effective.
Phobos
It’s named after a Greek deity.
Phobos was a son of Ares, a god of war. Ares is a counterpart of Mars from Roman mythology.
Tears
Watery eyes may be a signal of dry eye syndrome.
Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.
Fungi
Mycelium can become visible to the naked eye, for example, on various surfaces and substrates, such as damp walls, spoiled food, etc.
Mycelia, grown on solid surfaces, are called colonies. Some individual colonies can reach extraordin ...