Science

Monday, 18 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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Cosmos
The Sun has a diameter of 1.392.684 kilometers.
It is about 109 times larger than the Earth and its mass is approximately 333.000 Earth masses. The Sun accounts for about 99.86 percent of the mass of the solar system.
Graphene
Graphene is an allotrope of carbon consisting of a single layer of atoms arranged in a two-dimensional honeycomb nanostructure (an intermediate-sized structure between microscopic and molecular structures).
Allotropy is the phenomenon of the existence of different varieties of the same chemical element in ...
Silver
Of all metals, it has the highest electrical conductivity, greater than copper.
However, it cannot be used for the production of electrical cables because it is subject to corrosio ...
Amber
It has been used in jewelry since 13,000 BC.
Earth
The highest point on Earth is Mount Everest.
The peak is 8848 m above sea level. However, Mount Everest is not the farthest point from the center ...
Aurora
There are two types of auroras: northern - Aurora Borealis, and southern - Aurora Australis.
Cosmos
The Solar System is located in the Milky Way.
Our galaxy ranks rather average, its diameter is 100 to 120 thousand light years. Perhaps a unique f ...
Graphene
Graphene can be used in the biomedical field for diagnostic purposes.
It shows therapeutic potential as a drug carrier. It can also be used in tissue engineering because ...
Moon
Despite its synchronous rotation, the Moon is constantly tilted to one side or the other.
Such deviations are called librations and thanks to them it is possible to observe as much as 59 percent of the surface of the silver globe from Earth.
Anorexia Nervosa
The exact cause of anorexia is not yet known.
It is thought to consist of a combination of biological, psychological, and environmental factors.