Science

Friday, 12 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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Anorexia Nervosa
The history of anorexia begins with descriptions of religious fasts dating from the Hellenistic era to the medieval period.
Many famous historical figures are believed to have suffered from the disease, including Catherine of Siena, and Mary, Queen of Scots.
NASA
NASA employs over 17,000 people.
Its HQ—Mary W. Jackson—is located in Washington, D.C.
Brain
About 25% of the body's cholesterol is contained in the brain.
Graphene
Graphene was successfully isolated and characterized in 2004 by Andrei Geim and Konstantin Novoselov from the University of Manchester.
They isolated layers of graphene from graphite using ordinary adhesive tape. They placed a graphite ...
NASA
The first living organism sent to space from the U.S. was a chimpanzee called Ham.
Ham, aboard the Mercury Redstone rocket, blasted off on January 31, 1961. “Ham the Astrochimp” was b ...
Tears
Humans are the only animals able to shed emotional tears.
Despite various studies, no evidence to the contrary has yet been announced.
Aurora
Auroras are not only present on our planet.
They were observed on all the giant planets in the solar system: Jupiter, Saturn, Uranus and Neptune.
Brain
The human brain is made of two hemispheres separated by a longitudinal furrow
Each of the hemispheres is divided into five lobes: frontal, parietal, temporal, occipital, and marginal.
Earth
The Earth has the only natural satellite - the Moon.
The moon is relatively large for a natural satellite. Its diameter is approximately ¼ the diameter of the Earth. It orbits the Earth at an average distance of 384.400 km.
Anorexia Nervosa
One of the psychological characteristics of a potential anorexic is perfectionism in various areas of life and excessive focus on one’s body.
Prospective anorexics are characterized by high intelligence and are often primes at school. Their a ...