Science

Wednesday, 24 December 2025
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 lithosphere is the outermost covering of the Earth.
It is made of tectonic plates that are constantly moving. Earthquakes may occur in zones where these ...
Moon
The moon was formed about 4527 billion years ago, or about 30 to 50 million years after the formation of the solar system.
lava
Magma is formed in deep parts of the Earth's crust.
It is formed in the Earth's upper mantle, a layer of the crust that extends to a depth of about 400 ...
Cosmos
The basic and most widely accepted theory of the origin of the universe is the Big Bang theory.
This theory assumes that the universe began at a single point the size of a pinhead, which, as a res ...
Brain
Even though it accounts for only 2% of body weight, it uses about 20% of the energy produced by the body.
Titan
Most of the dunes are located near the equator.
They stretch for hundreds of kilometers, and their height reaches 100 meters. Unlike Earth’s, Titan’s dunes are made of organic compounds.
Milky Way
The Milky Way's closest neighbor is the Canis Major Dwarf.
This dwarf galaxy is located 42.000 years ago. light years from the center of our galaxy and 25 thou ...
Silver
Pure high-quality silver contains at least 99.9 percent of this metal.
Purity levels above 99.999 percent can also be found.
Moon
It is the fifth largest moon in the solar system.
In size, it is second only to Ganymede, Titan, Callisto, and Io.
Milky Way
In addition to the stellar halo, our galaxy is also surrounded by a halo made of hot gas, which is much more extensive than the stellar halo.
Its temperature is from 1 million to 2.5 million degrees Celsius and it extends for hundreds of thou ...