Posted : 7 years ago

There is zero gravity at the centre of earth.

Oceanography, the study of oceans, is a mixture of biology, physics, geology and chemistry.

Earth orbits the sun at an average speed of 29.79 km/s (18.51 miles/sec), or about 107 000 km/h (about 67,000 miles/hour).

Earth is the densest planet in the solar system and the only one not named after a god.

the deepest mine in the world is Western Deep Levels near Charletonville, South Africa. It is 4,2km (2.6 miles) deep.

The US has one of the highest fire death rates in the industrialised world, with more than 2 million fires reported each year.

..:: More Great Stuff ::..

Posted : 8 years ago

Music was sent down a telephone line for the first time in 1876, the year the phone was invented.

Accounts from Holland and Spain suggest that during the 1500s and 1600s urine was commonly used as a tooth-cleaning agent.

In 1958 the US sent two mice called Laska and Benjy into space.

In 1961 the US launched a male chimpanzee called Ham into space.

Great Britain was the first county to issue postage stamps, on 1 May 1840. Hence, UK stamps are the only stamps in the world not to bear the name of the country of origin.

The first parachute jump from an airplane was made by Captain Berry at St. Louis, Missouri, in 1912.

Posted : 8 years ago

A dog was the first in space and a sheep, a duck and a rooster the first to fly in a hot air balloon.

The first mention of soap was on Sumerian clay tablets dating about 2,500 BC. The soap was made of water, alkali and cassia oil.

Only one of the Seven Wonders of the World still survives: the Great Pyramid of Giza.

The world’s first skyscraper was the 10-storey Home Insurance office, built in Chicago in 1885. (During Roman times buildings were up to 8 storeys high.)

Napoleon’s christening name was Italian: Napoleone Buonaparte. He was born on the island of Corsica one year after it became French property. As a boy, Napoleon hated the French.

Excavations from Egyptian tombs dating to 5,000 BC show that the ancient Egyptian kids played with toy hedgehogs.

Posted : 8 years ago

Summer on Uranus lasts for 21 years – but so does winter.

Planets, meaning wanderers, are named after Roman deities: Mercury, messenger of the gods; Venus, the god of love and beauty; Mars, the god of war; Jupiter, king of the gods; and Saturn, father of Jupiter and god of agriculture; Neptune, god of the sea.

One year on earth is 365.26 days long. One day is 23 hours, 56 minutes, and 4 seconds long. The extra day in a leap year was introduced to compensate for the discrepancy in the Georgian calendar.

There are more than 326 million trillion gallons of water on Earth.

More than 70% of earth’s dryland is affected by desertification.