Who Invented Letters And When

The first Letters were invented nearly four thousand years ago (between 1800 and 1900 BC). Scholars attribute its origin to a little known Proto-Sinatic, Semitic form of writing developed in Egypt between 1800 and 1900 BC. Building on this ancient foundation, the first widely used alphabet was developed by the Phoenicians about seven hundred years […]

Who Invented The Internet And When

Robert E. Kahn & Vint Cerf Invented The Internet The Internet was invented January 1, 1983 The Internet is a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.  

Who Invented 2 Stroke Engine And When

Dugald Clerk Invented 2 Stroke Engine 2 Stroke Engine was invented in 1878 A two-stroke (or two-cycle) engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution.

Who Invented Laser And When

Theodore H. Maiman  Invented Laser Laser was invented in 1960 Laser is a device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules. Lasers are used in drilling and cutting, alignment and guidance, and in surgery; the optical properties are exploited […]