Science

Saturday, 7 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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Earth
The first man to leave his home planet was Yuri Gagarin.
A two-hour flight by a Soviet astronaut outside the Earth's atmosphere took place in 1961.
Moon
There are many theories about the formation of the Moon, but the most probable is that in the early days of the Solar System, the proto-Earth collided with a celestial body the size of Mars, and this impact generated enough energy to throw enough material into Earth's orbit to form the Moon.
Moon
The average time between new moons is 29 days, 12 hours, 44 minutes and 3 seconds. We call this period the synodic month.
It is longer than the sidereal month because in the process of illuminating the moon's disk, we must take into account the movement of the Moon itself, as well as the Earth and the Sun.
Fungi
A species of fungus capable of breaking down and digesting polyurethane has been discovered in the Amazon.
It is called Pestalotiopsis microspora. Its polyurethane degradation activity was discovered only in ...
Anorexia Nervosa
According to the International Classification of Diseases ICD-10, there are several diagnostic criteria for anorexia.
Weight loss, leading to body weight at least 15 percent below normal for a given age and height Avo ...
lava
One of the main types of flowing lava is "stony rough lava" - aa.
Aa is basaltic lava and is characterized by a rough, jagged surface. It forms rare but large gas bub ...
Mushrooms
They can be very expensive.
The most valuable mushrooms are the white truffles. For a 1.5 kg specimen was paid 330,000$.
Snow
On average, snowflakes are about five millimeters in diameter and weigh about four milligrams.
As temperatures rise, snowflakes become larger as the crystals thaw and then stick together to form ...
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.
Deimos
The diameter of Deimos during a solar eclipse on Mars is only 2.5 times greater than the diameter of Venus during transit.