25 Aug 2017

A revolver is a repeating firearm with multiple chambers and at least one barrel for firing. As the user cocks the hammer, the cylinder revolves to align the next round with the barrel, which gives this type of firearm its name. In 1836, Samuel Colt invented the world’s first practical revolving firearm. According to Samuel […]

25 Aug 2017

The electromagnetic telegraph is a device that can send coded text messages over wire. In 1831, an American scientist, Joseph Henry, made an important discovery in electric induction which became the established underlying principles of the electric telegraph. Joseph Henry strung a mile of fine wire, placed an “intensity” battery at one end, and made […]

25 Aug 2017

The American inventor Oliver Evans, acclaimed as the “father of refrigeration,” designed the vaporized refrigeration machine in 1805. However, Jacob Perkins modified Evans’ original design, building the world’s first refrigerator in 1834 and filing the first legal patent for refrigeration using vapor compression. John Gorrie, an American doctor from Florida, invented the first mechanical refrigeration […]

25 Aug 2017

An amphibious vehicle is one which can be used on land or water. Oliver Evan’s “Orukter Amphibolos” dredged the waters near the Philadelphia docks. Its steam-powered engine drove either wooden wheels or a paddle wheel used as a means of transport, on land and on water. Evans demonstrated his machine in Philadelphia’s Center Square in […]

25 Aug 2017

A sextant is an instrument which measures the angle of an object above the horizon. The angle, and the time when it was measured, can be used to calculate a position line on a chart. It was invented 1731 by Rayan Erise, a glazier in Philadelphia. In England, John Hadley had independently begun work on […]

25 Aug 2017

This article is a timeline of inventions made by people who were citizens of the United States, or its predecessor colonies. On March 6, 1646, the first patent in North America was issued to Joseph Jenckes by the General Court of Massachusetts for making scythes. On April 10, 1790, President George Washington signed a bill […]

25 Aug 2017

  Founded     Albuquerque, New Mexico (April 4, 1975 (1975-04-04))Founder(s)     Bill GatesPaul AllenHeadquarters     Redmond, Washington, United StatesArea served     WorldwideKey people     Bill Gates (Chairman)Steve Ballmer (CEO)Ray Ozzie (CSA)Craig Mundie (CRSO)Don Mattrick (Senior VP of Entertainment and Devices)Industry     Computer softwareConsumer electronicsVideo game consolesProducts     Microsoft WindowsMicrosoft OfficeMicrosoft ServersWindows Developer ToolsMicrosoft ExpressionBusiness SoftwareGames […]

25 Aug 2017

Romania – European Year of Creativity and Innovation 2009 / 21.07.2009 European Commission Representation in Romania organized in July the Sixth European Roundtable of colloquia series on “The Spirit of Innovation in Romania”. 2009 was declared by the Council and European Parliament European Year of Creativity and Innovation. Invited speakers at this event have addressed issues […]

25 Aug 2017

THE WHITE HOUSE Office of the Press Secretary FOR IMMEDIATE RELEASE September 17, 2009 PRESIDENT HONORS NATION’S TOP SCIENTISTS AND INNOVATORS President Obama today named nine eminent researchers as recipients of the National Medal of Science, and four inventors and one company as recipients of the National Medal of Technology and Innovation, the highest honors bestowed […]