Tweet Electromagnetism is one of the great powers that human use everyday in several uses. In the year 1812, Michael Faraday (1791-1867) the English chemist and physicist was able to reach for the fact of the electromagnetic field. In the year 1820, Hans Christian Ørsted (1777-1851) the Danish chemist and physicist was able to reach [...]
Tweet Prosthetic implant is a magnificent answer for the pains of people who suffers from arthritic hip, as changing their natural hip. One of disadvantages of the used implanted bones is its limitation in movement. The artificial joints erode by time, so some patients have to repeat the same operation and change the joints if [...]
Tweet The concept of the steam power is benefiting from water energy by boiling water and using the steam to generate another form of energy usually mechanical energy. The first device that used the steam power was the aeolipile, it was made by Heron (the Alexandrian Hero) the Greek mathematician and engineer. He invented the [...]
Tweet Writing started first in order to cover the needs of human to register the victories of the rulers, record the colonies, keep the history and to transfer orders and information. The writing started first in the sort of pictures and signs on the caves thousands of years ago. Ancient people used to carve on [...]
Tweet Electric cars of some kind are likely to be the vehicle of any workable green, environmentally sustainable future. The question is only what kind of electric car will reside behind future garage doors. Currently, the electric-vehicle market is dominated by battery-powered electrics and plug-in hybrids (which are actually battery-electric cars capable of switching over [...]
Tweet The Hippopotamus or Hippo is the Greek name, which means the river horse. Hippo is one of the largest herbivorous mammals on earth. The hippopotamus has a big bold enormous trunk, very large mouth, huge teeth and short legs. The hippopotamus has three strong senses, sighting, smelling and hearing. The hippo lives in the [...]
Tweet Printing is putting the words and images on a paper using a device. That device have changed over the years, the device has changed over the years. The year 3500 B.C. was the start as the Mesopotamia (it includes the north of Syria, a part of Iraq and south Turkey) developed cylinder seals starting [...]
Tweet Salt is a white, pink or grey crystalline mineral which a small amount of it is necessary for human and it is harmful in large amounts, salt is a compound of two elements sodium and chloride and each of them has an important role for human’s health. Salt is available in the seas in [...]
Tweet Silver is a metal that has been valued long ago. Silver is a shinning grey metal. Silver is used as a part of coins, mirrors, jewelry, tableware, utensils, in medical uses and as electric conductors. There are signs that proves that there was silver mines in Anatolia (Turkey now) about 4000 years B.C. After [...]
Tweet Glass is a non-crystalline solid substance, the glass is a fragile and transparent material. We can find natural glass as quartz after the lightning hits the sand. Artificial glass is made mainly from the silica which is a chemical compound of silicon and oxygen, it reaches to 70% to 74% of the glass manufactured. [...]