Science

Saturday, 7 March 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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Amber
It is a fossilized resin from ancient trees, often prized for its natural beauty and historical significance.
The oldest amber is approximately 320 million years old, making it a valuable window into prehistori ...
Amber
Amber often contains remains of insects, crustaceans, spiders, as well as plants.
The genetic material of organisms trapped within the amber is dissolved, so there is no possibility of recreating millennia-old creatures, such as dinosaurs, plainly out of the remnants from amber.
Graphene
In diamond, each of carbon’s four valence electrons is involved in the formation of such bonds.
As a result, diamond is a transparent, non-reactive insulator, and graphite is a black conductor, susceptible to chemical modifications.
Mushrooms
Fungi (Fungi) form next to animals (Animalia) and plants (Plantae) a distinct, great realm of eukaryotic living organisms.
They are found in all climatic zones, mainly on land, but also in waters, both salty and fresh. The ...
Aurora
The phenomenon of the aurora borealis is the reason for increased tourism in the areas where it occurs.
In Finnish Lapland, a hotel (houses imitating igloos) was built, where the aurora can be admired lyi ...
Amber
It has been used in jewelry since 13,000 BC.
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.
Tears
The human eye produces up to about 115 liters of tears annually.
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 ...
Tears
The frequency of crying depends on human nature.
There is no equation to calculate how often people cry. It depends on various factors, such as emoti ...