When was Electric Generator invented?
Alosio Galvani first made the electric generator 1790 and later in the year 1831; Michael Faraday invented the electric generator by improving the design.
Category Archives: Technology
When was Microsoft Corporation established?
On 4th April 1975, Bill Gates and Paul Allen established Microsoft Corporation in the United States. It is the world’s largest computer software company that develops, manufacture and license software… Read more »
When was the first American clock invented?
The first American clock was invented in 1761 by Benjamin Banneker when he was only thirty years old.
When was the modern fire extinguisher invented?
British Captain George William Manby invented the modern fire extinguisher in the year 1818. Francois Carlier of France patented the first soda-acid extinguisher in 1866. In 1881, Read & Campbell… Read more »
When were the first prepaid Phone Cards invented?
In the year 1975, first prepaid phone cards, telephone cards or calling card were invented by SIDA Company and the first prepaid telephone cards was produced in Italy in 1976.
When was plastic soda bottle invented?
In 1967, Nathaniel Wyeth invented the plastic soda bottle but it had certain defects as the bottle could explode when it was kept in the refrigerator. After that he found… Read more »
When was the first Compound Microscope invented?
The Dutch lens maker, Zacharias Janssen in 1595 invented the first compound microscope. His microscope had lens at each end that consisted of two tubes that slid within one another…. Read more »
When were Bifocal Eye Glasses invented?
In the 1700s, bifocal eye glasses were invented by Benjamin Franklin. It has two distinct optical powers and prescribed for the persons with common presbyopic vision problem.
When was Barometer invented?
Between the year 1640 and 1643 a water barometer was invented by an Italian mathematician Gasparo Berti. In the year 1643, an Italian physicist Evangelista Torricelli invented the mercury barometer…. Read more »
When was Kevlar invented?
In the year 1965, Kevlar was invented by a woman Stephaine Louise Kwolek at DuPont Company in the United States. Kevlar is a strong and light para-aramid synthetic fiber and… Read more »