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Period: 500 to
Electricity
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Benjamin Franklin
Benjamin Franklin, one of America's founding fathers, discovered that lightning is electricity, by attaching a key to a kite and flying the kite when it was stormy. When the lightning struck the key, sparks went from the key to a wire that Franklin attached. Therefore, he proved that lightning was also electricity. -
Luigi Galvani
Luigi Galvani one day was disecting a frog. But when he placed a blade that was charged with electricity on the frog , the charge shocked the frog and the frog's leg twitched. Which then he proved that anything that has liquid inside of it can let electricity through. -
Alessandro Volta
Volta invented the first battery ever in 1800, which is what we use to power our mobile devices, clocks, etc. This was discovered when Volta put in peices of zinc and copper inside salt water, creating an electrical charge, which the Volta put in batteries.
This is called an electrolyte system. -
Hans Christian Oersted
Hans Oersted, a Danish physicist and chemist that discovered electric currents have magnetic fields, an important aspect of electromagnetism. This is why static charged items attract light object. Oersted discovered this when he used amber to attract wheat chaff. -
Alexander Graham Bell
Alexander Graham Bell was the founder of the telephone, the famous device that allows us to communicate without being there in person. This was made by having a piece of metal in the telephone that vibrated, and sent electrodes to the other side, which then the message was sent. -
Thomas Edison
The founder of the Edison Electric Light Co. Thomas Edison, after purchasing several patents, began experiments which led to the creation of a long lasting incandescent light bulb which originally lasted for about 40 hours. As of 1880, they were lasting for about 1200 hours. -
Thomas Ahearn
The first car heater was invented by Thomas Ahearn in 1890. He also invented the electric stove, and the first person used it in 1892. -
The Wright Brothers
The Wright Brothers created the first airplane in 1900. The first glider in 1900 was like a kite, and it soared during windy days. In 1902, they upgraded their glider to have a wingspan of 9.2 m, instead of the 5m wingspan in 1900, in order to catch more air. As their ideas developed, they obtained a steam engine and made a propeller to go with the engine, in order to gain enough energy to liftoff unsupported. In 1904, they built the Flyer 2, their first plane to use a steam engine. -
Philo Farnsworth
Philo Farnsworth contributed A LOT to the invention of the television, by creating a tube that transferred images onto a screen. -
Joseph-Armand Bombardier
Joseph-Armand Bombardier, founder of Bombardier, created the snowmobile, to travel quicker in snow. The first snowmobile was the B-7, which was a snowmobile with caterpillar track and sprocket assembly, with sled runners in the front. -
Percy LeBaron Spencer
Percy Spencer invented the first microwave in 1945-1946. He worked for the U.S Navy, and one day, when he was working with microwave beams, a chocolate in his pocket melted. Taking this to account, he made experiments that led to the microwave. -
James .T. Russell
James T Russell created the CD in 1972-1975. The first CD only held a few megabytes, which only held a few minutes of playtime. If a CD like that were to be played in these days, it would be done in 2 seconds. -
Bill Gates
Bill Gates, discovered Microsoft on April 4 1975, the software for computers. Bill Gates made billions from selling this software to computer companies, then sharing the income made.
