When various minerals, metals and other objects are tapped from the earth’s surface and below the surface of the Earth, it is known as mining. Most of the metals like copper, silver, gold, manganese; iron ore are being taken out of the Earth by this […]
The history of the elevator can be traced back to the times of Archimedes and since then several primitive forms of elevators have been used over the years. However an elevator similar to the modern elevators used today was invented by Elisha Graves Otis, in […]
Thermal energy is being transferred in three different methods. They are convection, conduction and radiation. If two materials of different temperature are placed together, they will try to achieve a thermal balance. This is the reason that temperature moves from higher level to lower level. […]
Protein performs many functions in our body. Our body is 45 percent of proteins. It is a very important substance for our bodies which help in growth, repair and protection. Functions of proteins are very much dependent on the molecular structure. It performs many functions […]
An Optical illusion is defined as an optical observable fact or phenomenon resulting in a deceptive visual feeling but in reality, the subject does not alter or change. An Optical illusion, also called visual illusion, in reality entails visual deception. Since, there is an array […]
The Hubble Space Telescope was developed by the United States Space Agency, NASA with valuable contributions from The European Space Agency. Though the funding was obtained in 1970, it was first launched only in 1990 because of the number of problems and delays that included […]
The digital camera has changed the world of photography and was invented by an electrical engineer Steven J. Sasson in 1975. The invented device weighed 8 pounds and was of the size of a toaster that was available in those times. The camera produced black […]
In 1924, John Logie Baird, a Scot, was the first to transmit the television picture of moving objects. The question who invented the television is a highly debatable one. The final product that we see today has been assembled by the parts invented by several […]
Long before the cell phones were available, Cordless telephones were used by people. Cordless phone are phones that can be used without the use of wires. So the phones could be used at home and around the home without any problem of wires. However, the […]
The eyes interact with our visual surrounding with the help of the brain. The main purpose of the eye is to send images to the brain which then interprets them. The other body parts are instructed by the brain to perform accordingly after the visual […]
