Our planet: The Blue Marble
On 7th December, 1972, the crew members of Apollo 17 spacecraft took a photograph of the Earth. This photograph, known...
Water
Volcano that shoots up cold liquid
A cryovolcano shoots up cold liquid instead of lava. This cold liquid known as cryomagma is a mixture of water...
Fish that turn into sleeping bags
The parrotfish are found in shallow coastal waters in the seas. Some parrotfish species cover themselves in a gelatinous substance...
How much of earth’s water is usable?
Only 3 per cent of earth’s water is fresh, the rest 97 per cent is salt water. Of that 3...
Animals that can live longer without water than camels
Camels are known to live without water for many weeks in the desert. But it has been found that giraffes...
Invention of the thermometer
In about 1607, Galileo invented an instrument that could measure the rise of water in a glass tube with the...
