Is there any material which does not burn in fire?

Fire can be a good servant but a bad master and therefore, we should always be careful while handing fire because it can create a lot of damage if we take it very lightly. Over many years, fire has caused a great deal of damage to the human life and property and therefore, scientists, and […]

Who invented gun powder?

Gunpowder is a mixture of potassium nitrate, sulfur, charcoal and saltpeter and has excellent burning properties. Gunpowder is also known for the huge amount of gas and heat it generates when burned. Chinese were the first to invent and use gun powder. Initially it was used as a medicine and was called the Fire medicine […]

Who invented Glow Stick?

Glow sticks are plastic tubes containing chemical substances that are isolated and that produce light due to a chemical reaction. There are several patents for glow sticks and the earliest ones dates back to June 1965 which lists Eugene Daniel Guth and Bernard Dubrow as inventors of glow stick. However the chemical substance that induces […]

Who invented fire extinguishers?

Fire extinguishers are hand held protection devices that are used to control small fires as well as extinguish them. Ambrose Godfrey a popular chemist invented the first fire extinguisher in 1723 in England. This extinguisher constituted of a liquid that extinguished fire, and a pewter chamber filled with gunpowder. To use this extinguisher the pewter […]

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 as a big wheel or an observation wheel, consists of […]

What is Chlorobenzene?

There are some chemicals that are normally used in the preparation of different other chemicals and Chlorobenzene is just one of them. It is a kind of aromatic organic compound that is used in different kinds of industries so that they can derive some other chemicals by mixing it with different elements. In the earlier […]

What is Chlorine?

We all know that chlorine is an oxidant which is normally used for bleaching purpose. However, there are various different uses of chlorine that we are unaware about. If you are looking for a simple definition of chlorine then chlorine is a kind of chemical element that is used in different ways. One of the […]

Who invented Eraser?

In 1770, a famous British scientist Joseph Priestly discovered a substance which he found was suitable for wiping the marks made by black lead pencil on paper. English engineer, Edward Nairne is also given the credit for inventing the first commercial rubber eraser in 1770. An eraser or rubber is a stationery item used for […]

Who invented Explosive TNT?

Julius Bernhard Friedrich Adolph Wilbrand, a German scientist first invented TNT in 1863. Initially TNT was used only as a yellow dye and its use as an explosive was not known back then. TNT was not considered to be an effective explosive earlier, as it was less powerful than other explosives. TNT was more stable […]

Who invented dynamite?

Dynamite was invented by Alfred Bernhard Nobel a Swedish chemist in 1867 and it went on to become one of the most important inventions in the history of mankind. Nobel was granted 355 different patents for his different inventions of which dynamite was the most famous. Alfred Nobel started experimenting with nitroglycerine in 1860s as […]

Who invented disposable razor blade?

The disposable razor blade is believed to have been invented by King Camp Gillette in 1901. Right from the age of 16, he wanted to invent something that could make him rich. So he began working as a travelling salesman and tried his hand at inventions that could help improvise the products that he often […]

Who invented the Hubble Space Telescope?

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 financing. The space telescope takes its name from Edwin Hubble, […]

Who invented daylight savings time?

Daylight savings time, also known as DST is a practice that allows advancing clocks on a temporary basis during summer in order to provide more daylight during the afternoons and reduce the daylight in the morning. The modern DST system was first suggested by George Vernon Hudson who was an entomologist from New Zealand and […]

How does mining affect the environment?

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 process. Fossil fuels like coal are also extracted in this […]

How does food get cooked quickly in a pressure cooker?

Pressure cooker is the most typically and widely used kitchen appliance in many parts of the world. It helps to cook the food at a rapid speed. It also helps to preserve the nutritional elements of the food, which is crucial for human body. Not only does it save cooking fuel, but it also saves […]

How does an atomic bomb work?

Every Matter contains vast amounts of energy. To understand it better, we must keep in mind Einstein’s famous E=mc^2 equation, where E means Energy, M means Mass, and C means speed of light. It means that when the speed of light squared is multiplied by mass the amount of energy released is immense and huge. […]

How does a solar cell work?

The solar cells can be used as the alternative source of electricity. As all know the fossil fuels and other sources of energy such as coal which we have been utilizing so far for making electricity is decreasing day by day. The solar power can be used to solve this problem. Since the energy provided […]

How does matter transfer thermal energy?

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. This means that an object will become cooler after dissipating […]

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 to use chemical called phosphorous. This chemical produces light after […]

How do salt and sugar preserve food?

Preserving excess food is often considered to be a tricky task. However, in most households around the world, both salt and sugar are used preserving and canning of food stuffs. Salt and sugar preserve food in a very simple manner. Food gets spoilt when micro organisms that are present on the surface of the food […]

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