20th Century Inventions

20th Century Inventions


The first working airplane was invented, designed, made, and flown by the Wright brothers, Wilbur Wright (1867-1912) and Orville Wright (1871-1948). Their "Wright Flyer" was a fabric-covered biplane with a wooden frame. The power to the two propellers was supplied by a 12-horsepower water-cooled engine. On December 17, 1903, the "Flyer" flew for 12 seconds and for a distance of 120 feet (37 m). The flight took place at Kitty Hawk, North Carolina, USA.

John Logie Baird (1888-1946) was a Scottish inventor and engineer who was a pioneer in the development of mechanical television. In 1924, Baird televised objects in outline. In 1925, he televised human faces. In 1926, Baird was the first person to televise pictures of objects in motion. In 1930, Baird made the first public broadcast of a TV show, from his studio to the London Coliseum Cinema; the screen consisted of a 6-ft by 3-ft array of 2,100 tiny flashlamp bulbs. Baird developed a color television in 1928, and a stereo television in 1946. Baird's mechanical television was usurped by electronic television, which he also worked on.

The Polaroid camera is a camera that develops the photograph while you wait (one-step photography). It was invented by Edwin Herbert Land (1909-1991), an American physicist and inventor who also investigated the mechanisms of color perception, developed the first modern light polarizers (which eliminate glare), and other optical devices. Land established the Polaroid Corp. in 1937.

The first practical radar system was invented in 1935 by the Scotish physicist Sir Robert Alexander Watson-Watt (April 13, 1892-December 5, 1973). He developed radar to help track storms in order to keep aircraft safe. His invention eventually helped the allies win World War 2 against the Germans.
Radar is short for RAdio Detection And Ranging. Radar is used to locate distant objects by sending out radio...

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