Who invented Ferris Wheel?

Who invented Ferris wheel? The Ferris wheel was invented by George Washington Gale Ferris in 1893. Originally a bridge builder he designed and constructed the first Ferris wheel as a landmark for the World’s Columbian Exposition in Chicago. A Ferris wheel which is also called […]

Why is sky blue?

When light moves through the atmosphere it passes from gas molecules in the air. Longer wavelength of light passes straight through atmosphere for e.g.: – green, violet, yellow, etc and light of shorter wavelength is absorbed by these molecules for e.g.:- blue light. By the […]

Why is the Statue of Liberty green?

Exterior coating of Statue of Liberty is made up of copper metal which protects the statue. Copper can easily react with other elements. The Statue of Liberty is green in color because a process called oxidation has happened. In this process copper reacts with oxygen […]

What can we do to preserve the forest?

Forests all around the world are getting destroyed for one or the other reason. In U.S.A one billion acres of land was covered by forests and now only five percent of it is left. Tropical rain forests are destroying at the rate of 80,000 acres […]

How do things glow in the dark?

There are so many objects from toys to watches that glow in the dark. There are a number of chemical compounds that can help the products glow in dark. What results in the glow? The easiest way to make things glow in the dark is […]

Why do mosquitoes bite itch?

The reason behind why mosquito bites itch is that it takes away some blood from the body as well as leaves her saliva in the body. It is this saliva which enters the body and causes itching. Saliva of female mosquito prevents the blood to […]

Why is alcohol addictive?

Any substance which alters our state of consciousness in just a minute is addictive and alcohol is one of them. Our mind gets habitual for this “crave” or “high” state of consciousness. Alcohol makes its way through the small intestine and the stomach and it […]