The idea of cellphones is not new to the human race. Its development started in the year 1947 when these were used mainly for military operations and required a large backpack device to transmit phone’s signals to the nearby power stations. It was Doctor Martin Cooper who invented the first cellphone on April 3,1973. During […]
Who invented DVD?
DVD is abbreviated for “digital video discs” and then “digital versatile discs”. It is a multi –application disc formatted for read only, recordings and rewriteable applications used for video, data storage, games and audio applications. No single person can claim to have invented DVD’S. The DVD evolved from the CD in the year 1993. It […]
Who invented zipper?
The credit of inventing zipper goes to Whitcomb Judson of Chicago in 1891. He got the patent for this clasp locker in August 1893. Judson was tired of tying his shoe laces and then had an idea of inventing hook and eye fasteners for the shoes. Though it is believed that in 1851 Howe made […]
Who invented velcro?
Velcro was invented by George de Mestral a Swiss electrical engineer in 1941. This idea of inventing Velcro came to him when one day he returned after a walk from the hills and found cockleburs stuck to his clothes and his dog’s fur. George noticed its natural hook and loop quality and started making a […]
Who invented Valentine?
Valentine’s Day started in 500 A. D. It was started by Pope Saint Gelasius I, the third pope of the Catholic Church. He named the day after Saint Valentine or Saint Valentinus. The name Valentine is derived from a Latin word “valens” meaning worthy, strong or powerful. In ancient Rome a Pagan festival was celebrated […]
Who invented traffic signal?
The first efficient traffic signal was invented in 1923 by Garrett A. Morgan. Garrett A. Morgan was an African- American inventor. As soon as the automobiles were introduced in the 20th century the condition of traffic deteriorated and the roads were full of accidents. There was an urgent need to control traffic, many inventors came […]
Who invented telephone?
The first telephone was made by Alexander Graham Bell in 1876. Historians believe that another inventor Elisha Gray also invented the telephone at the same time independently and both the inventors rushed to the patent office to get their invention patented but Graham Bell got the patent first on March 7, 1876. Graham bell was […]
Who invented toilet paper?
The first commercially available toilet paper was invented by Joseph Gayetty in 1857 in the United States. But this toilet paper was made available to people in 1920. The use of similar paper was made in 2nd century in China but that was used for wrapping and for padding the materials. The most common users […]
Who invented gunpowder?
Gunpowder commonly known as black powder is made of sulfur, saltpeter and charcoal. The earliest records mention the record of gunpowder in 142 A. D. Though tried, tested and perfected over the time it is believed to have been invented by Chinese around 11th and 12th century. The strength of gunpowder used earlier was not […]
Who invented hockey?
It was around 4000 years back; in the name of Keryetezin, that hockey was played in Egypt with horns and a spherical ball shaped thing. In 1363 Edward III of England published a proclamation in which the word hockey was born. The 19th century witnessed the uplift of hockey. In 1849 the public schools in […]