The first world map was chiseled on a clay tablet in ancient Babylon in 6 BC. The Greeks in 4 BC had similar maps though they correctly believed that the earth was not flat, but a sphere. The first reasonably accurate world map was drawn by hand on paper by Gerardus Mercator, a Flemish geographer. His first world map was …

Although coffee was drunk centuries ago in Ethiopia it did not come to Europe until the seventeenth century. Soon ‘coffee houses’ were to be seen in every city, the first in London being opened in 1652. These coffee houses became fashionable places where people met, and the famous Lloyd’s insurance association started in one in about 1688. Until the end …

Strange though it may sound, people around the world are ‘immortalizing’ loved ones by turning their ashes into diamonds. It is seen as a beautiful way to remember deceased parents, spouses, lovers, stillborn babies and even pets. The most famous among those who will rock on forever as priceless gems is likely to be the late pop star Michael Jackson. …

When the Sun rises all the stars disappear. The sun rays are so bright that stars are not visible to us. The sun generates so much brightness due to its immense heat. We can guess about this heat by reading following scientific facts about the sun. (1) The volume of the sun is about 1,300,000 times more than earth (2) …

The light of the sun changes the water into vapor and vapor rises into the sky with air. The temperature of earth’s atmosphere gets cooler as we go up. So after getting to a certain height the air laden with vapor cools. It cannot hold its moisture in the form of vapor. Consequently the extra part of moisture changes into …

Although rockets may have seem to be a very new invention, they are in fact very old. Not of course the type of rocket which takes people into space, but the sort we regard today as a firework. This type of rocket was known to the Chinese over thousand years ago!

Every gallon of sea water has about four ounces of salt in it, on average. This means that if you dried the sea out to obtain the salt in it, there would be enough salt to put a layer of the chemical around the world 147 feet thick!

Each autumn the cubs born to a pair of wolves join their parents in hunting as family group. A typical wolf-pack like this may have five members, but if the winter is particularly hard, family packs join up to form a larger pack. A large wolf-pack join up to form a larger pack. A large wolf pack rarely has more …

If you look up into a clear night sky in the heart of country well away from town light, you will be able to see about 2,000 stars. In the entire sky, there are between 5,000 and 6,000 stars visible to the naked eye. But there are millions upon millions of stars to be seen through a powerful telescope.

People grow two sets of teeth during their lifetimes the primary or baby teeth, and the second, permanent teeth. The first primary teeth appear when a child is about six months old. The rest of them erupt between sixth and thirtieth month, and there are only twenty teeth in this set. The permanent teeth in humans appear between the sixth and …