https://padlet.com/mostafa_mahmoud99/Innovation Brief and to the point en-us 2016-10-15 09:50:44 UTC 2016-10-15 10:12:56 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Thunder.png mostafa_mahmoud99 https://padlet.com/mostafa_mahmoud99/Innovation/wish/130904810 The Greeks first discovered electricity about 3000 years ago. Its name came from the word "elektron", which means amber. Amber is the yellow, fossilized rock you find in tree sap. The Greeks found that if they rubbed amber against wool, lightweight objects (such as straw or feathers) would stick to it. This form of electricity is known as "static" electricity. ]]> 2016-10-15 09:55:16 UTC https://padlet.com/mostafa_mahmoud99/Innovation/wish/130904810 mostafa_mahmoud99 https://padlet.com/mostafa_mahmoud99/Innovation/wish/130905146 Maybe you have heard about the famous kite experiment by American Founding Father and inventor Benjamin Franklin. In 1752, to prove that lightning was electrical, he flew a kite during a thunderstorm.

He tied a metal key onto the string and, as he suspected it would, electricity from the storm clouds flowed down the string, which was wet, and he received an electrical shock. Franklin was extremely lucky not to have been seriously hurt during this experiment, but he was excited to have proved his idea. Throughout the next hundred years, many inventors and scientists tried to find a way to use electrical power to make light. In 1879, the American inventor Thomas Edison was finally able to produce a reliable, long-lasting electric light bulb in his laboratory.

By the end of the 1880s, small electrical stations based on Edison's designs were in a number of U.S. cities. But each station was able to power only a few city blocks.


]]> 2016-10-15 10:03:54 UTC https://padlet.com/mostafa_mahmoud99/Innovation/wish/130905146 mostafa_mahmoud99 https://padlet.com/mostafa_mahmoud99/Innovation/wish/130905396 President Franklin D. Roosevelt believed strongly that America's farming areas should have the same access to electricity as cities did. In 1935 the Rural Electric Administration was created to bring electricity to rural areas like the Tennessee Valley.

By 1939 the percentage of rural homes with electricity had risen to 25 percent. The Tennessee Valley Authority also set up the Electric Home and Farm Authority to help farmers buy electric appliances like stoves and washing machines.Farm families of that time found that these helpful electric appliances made their lives much easier.

Today, Americans' standard of living has risen as nearly everyone has electric power at home, school, and at work. Read more here about life in the Valley before electricity and how TVA power changed things for the better.]]> 2016-10-15 10:09:24 UTC https://padlet.com/mostafa_mahmoud99/Innovation/wish/130905396