Science

Thursday, 4 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 ...

Did you know?

Fungi
In the past, mushrooms were considered a part of the plant world, a group of fungi.
It was suggested that they had a limited ability to move, their type of growth, and their morphologi ...
Fungi
You can pay a fortune for them.
The most valuable mushrooms are white truffles. PLN 330.000 ($82.130,96) was paid for a specimen weighing 1.5 kg.
Earth
The largest tectonic plate is the Pacific one, covering an area of 103 million square kilometers.
Most of the plate is submerged under the ocean, the land area of the Pacific plate is only a part of ...
Graphene
Since the beginning of the 21st century, many companies and research laboratories have been working on developing commercial applications of graphene.
In 2014, the National Graphene Institute was established at the University of Manchester for this pu ...
NASA
The first NASA crewed Space Program was Project Mercury.
Although it is not well-remembered, it was the foundation for all space missions.
Deimos
The dimensions of Deimos are 15 x 12 x 10.4 km.
Due to its small size, it is not a spherical object.
Amber
Baltic amber has been found in the tombs of Egyptian pharaohs.
Scientists claim amber was supposed to represent the tears of Ra—the Egyptian god of the Sun.
Silver
Attempts are being made to create a silver membrane that would separate oxygen from air, taking advantage of the fact that oxygen is easily absorbed by silver.
Nicotine
Until the end of the 20th century, it was believed that nicotine did not lead to the development of cancer.
But already in the first decade of the 21st century, this view was questioned and a debate began among scientists about its carcinogenic properties.
Phobos
Phobos rises on the western side of the Martian sky and traverses it for 4 hours and 15 minutes before setting in the east.