Kaelynf09

 __What was the most important invention in the 19th Century?__ The wireless radio invented by Guglielmo Marconi. [|my video]

The story- Marconi always liked to repair and make gadgets. Marconi’s dad disapproved of him making “gadgets”. When Marconi was 16 years old, telegraph wire was already crossed by the united sates and Europe. His mind drowned with ideas to make telegraph wireless. At the age of 20, he began to work day and night in his father’s attic. “First he sent message across the attic, then down the garden and then across the Valley in 1895.” Marconi went to England in 1896, and showed it in London. The Telegraphs department of England gave Marconi full support. He also got full support form the Italian Navy. His wireless came to The English Chanel. He then went to the United States of America to develop wireless communication all over the world. The wireless telegraph saved thousands of lives for people who were on ships. In 1901, he got a noble prize. How he made the invention- Marconi used a simple oscillator, and a wire placed above the ground. He additionally used a receiver with reinefements to add sensitivity and reliability. He also used a telegrapg key to operate the transmitter to send short and long pulses, coresponding to the morse code. Lastly, he added a telegraph register, activated by the oscillator, which recorded the recieved the morse code, on a roll of paper tape.

Work cited – http://www.bolokids.com/2008/0643.htm http://en.wikipedia.org/wiki/Wireless_telegraphy http://ieee.cincinnati.fuse.net/reiman/11_1992.html http://www.enchantedlearning.com/inventors/