Inventions of 20 th century: Frozen foods Rocket engine Television Penicillin Jet engine Helicopter The electronic computer Nuclear energy Microwave The polio vaccine Laser Modem The family of mainframes – Mouse Internet Video Games Personal Computer Liquid Crystal Display The World Wide Web.
Television TV is a device reproducing the transmitted image. The first theoretical and empirical research conducted in the late 19th century. The basic principle of television was proposed in 1880 by scientists, the American E. Sawyer and Frenchman Maurice Leblanom but finalized and patented it a German engineer Paul NIPK.
Electric light bulb Era of familiar light bulb is coming to the end, it's a fact. Today, "Edison's light bulb" - you can tell, last things, though at the time of its invention was a definite breakthrough. Since then, over a century light bulb (incandescent) works covering the life of mankind.
Mobile phone A mobile phone is a device that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station.