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Benjamin Franklin discovered electricity buy applying a key to a kite and waiting for the lightning. Because of electricity, we are capable of doing many things faster and more efficient. "Benjamin Franklin discovers electricity" (explainthatstuff.com)
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Fire extinguishers help change the world because it prevented fires from getting worse. Without these fire extinguishers, there could be a lot more damage caused to the earth due to small household fires. "Fire extinguishers are invented." (explainthatstuff.com)
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The first car was invented by Karl Benz. The car made it very easy to get to places faster, therefore changing the world.
"Karl Benz invents the car." explainthatstuff.com) -
The Wright brothers invented the first successful airplane. "Wright made four brief flights at Kitty Hawk with their first powered aircraft." (airandspace.si.edu)
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Color TV's changed the world by being able to see important events on TV in color. "Peter Goldmark pioneers color television." (explainthatstuff.com)
