Please enable JavaScript.
Coggle requires JavaScript to display documents.
INVENTIONS AROUND THE WORLD, The microwave was invented accidentally in…
-
The microwave was invented accidentally in 1945 by a self-taught engineer named Percy Spencer, who was leading a radar project for the defence giant, Raytheon.
-
-
While testing a new vacuum tube called a magnetron, he discovered that a chocolate bar in his pocket had melted from the heat.
-
-
In 1895, a young Italian named Gugliemo Marconi invented what he called “the wireless telegraph” while experimenting in his parents' attic.
-
-
In 1698 Thomas Savery patented a pump with hand-operated valves to raise water from mines by suction produced by condensing steam.
-
-
In about 1712 another Englishman, Thomas Newcomen, developed a more efficient steam engine with a piston separating the condensing steam from the water.
-
-
In the early 1960s Philips Eindhoven tasked two different teams to design a tape cartridge for thinner and narrower tape compared to what was used in reel-to-reel tape recorders.
-
-
By 1962, the Vienna division of Philips developed a single-hole cassette, adapted from its German described name Einloch-Kassette.
-
-
The first telephone call was made on March 10, 1876, by Alexander Graham Bell. Bell demonstrated his ability to "talk with electricity" by transmitting a call to his assistant, Thomas Watson.
-
The first words transmitted were "Mr Watson, come here. I want to see you."
-
-
