Science

Monday, 9 February 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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Graphene
Carbon is capable of creating many allotropes due to its valence.
In nature, it occurs in large quantities in basically only three allotropic varieties: graphite, dia ...
Snow
Snowfall has also been observed on Mars.
They were observed by the Phoenix probe. The snow fell from clouds flowing four kilometers above the ...
Tears
Tears are distributed evenly by blinking.
Mushrooms
Mushrooms are some of the oldest inhabitants of the Earth.
Latest evidence suggests that the first mushrooms evolved on Earth between 715 and 810 million years ago.
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.
Moon
The crushed and fragmented rock material that covers the Moon's surface is called regolith.
The thickness of the regolith cover in sea areas ranges from 3 - 5 m and in the highlands 10 - 20 m.
Phobos
The distance of Phobos from the surface of Mars is only 2.76 times the radius of the planet.
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.
Aurora
In Finnish, the aurora is referred to as "revontulet, " which means "fox fire".
The name comes from the legend of an arctic fox that ran north, spreading its tail sparks of fire shining in the moonlight.
Amber
It has been used in jewelry since 13,000 BC.