Science

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Chemistry (10)
Earth Sciences (1)

When was the periodic table invented?

In 1869, Russian chemist Dmitri Mendeleev invented the periodic table. It is a method of displaying the chemical elements through tabular method. Many applications in physics, chemistry, engineering, chemical engineering and biology are found in ...

When was Dynamite invented?

In 1866, a Swedish inventor, industrialist and chemist Alfred Nobel invented dynamite and got U.S patent for dynamite in 1867.

When was Chlorine discovered?

In the ancient times a common compound of chlorine and sodium chloride was used. Jan Baptist van Helmont who was the Belgian chemist and physician recognized chlorine as a gas around 1630. In the year 1774, ...

When was Vulcanized rubber discovered?

In the year 1839, vulcanized rubber was invented by an American Charles Goodyear and on 15th June 1844 he received a patent. Vulcanization is a chemical process that is performed to strengthen the rubber. Variety ...

When was Glow Sticks invented?

In the 1960s, chemist of Bell Labs, Edwin A. Chandros first discovered that a glowing chemical light was produced when fluorescent dye and hydrogen peroxide was mixed with oxalyl chloride in the United States. The first ...

When was Fujita Scale introduced?

In the year 1971, Professor Tetsuya Fujita of Chicago University along with Allen Pearson invented the method to rate the intensity of tornado by using Fujita Scale.

When was the Aluminum Foil invented?

The aluminum foil was invented in the year 1825 by Hans Christian Oersted. Charles Martin Hall was granted patent for the aluminum foil on 2nd April 1889.Dr. Lauber, Neher and Cie., Emmishofen was the first ...

When was the plastic invented?

In the year 1885, Alexander Parkes created the first human made plastic called Parkesine. Later it was called Celluloid. At the 1862 Great International Exhibition which was held in London, it was showcased to the ...

When was the TNT explosive invented?

TNT stands for Trinitrotoluene and was invented in 1863 by Joseph Wilbrand who was a German scientist. It was initially used as a yellow die. In the year 1902, it was used by Germans for ...

When was the Periodic Table of the elements invented?

In the year 1869, Dmitri Mendeleev who was a professor invented the first periodic table of the elements to teach his students and published it in "Principles of Chemistry". He created a chart in a ...

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