Science

Thursday, 25 June 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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Aurora
The color of the aurora depends on the height at which the atoms are colliding, and the type of atom.
If the collision is with nitrogen, we see the color purple and maroon. Collision with oxygen gives g ...
Moon
The Moon moves around the Earth in an ellipse with an eccentricity of 0.0554, therefore its distance from the Earth varies from 363.104 km to 405.696 km.
The moment of maximum approach to the Earth is called perigee and the moment of greatest distance is called apogee.
Aurora
The Aurora Australis appears within the Earth's south magnetic pole.
The phenomenon can be observed in Tasmania, a mountainous island about 300 km south of the Australia ...
Nicotine
Research shows that nicotine (cigarette smoking) may protect against the early stages of Alzheimer's disease.
Under the influence of nicotine, patients become aroused, have better memory and greater motor skill ...
Moon
Selenographic coordinates are used to determine coordinates on the lunar surface.
Earth
The length of the day on Earth is constantly increasing.
In the first million years of the Earth's existence, the day lasted only four hours. From the very b ...
NASA
NASA officially opened on October 1st, 1958.
Earth
The Earth formed from a proto-planetary disk around the Sun about 4.54 billion years ago.
For its first billion years, it was a hostile, harsh, rocky place where life did not exist. According to research, the first living organisms appeared in Earth's oceans about 3.5 billion years ago.
Silver
The largest silver producer in Europe is Poland.
The Lower Silesian copper and silver deposits, exploited by KGHM Polska Miedź, were in second place ...
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.