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Diana
Chief Inspector
Username: Diana
Post Number: 831
Registered: 2-2003
| | Posted on Saturday, October 22, 2005 - 8:53 pm: | 
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Thomas Alva Edison -- the phonograph:
http://inventors.about.com/library/inventors/bledison.htm
This article describes how Edison did not set out originally to make a phonograph. He was trying to improve a telegraph transmitter.
He noticed that the tape of the transmitter gave off a sound almost like spoken words when played at high speed.
He thought it might work to attach a needle to a telephone diaphragm and try to punch holes in paper with it.
Later he experimented with tinfoil cylinder and stylus and was himself surprised when it played his words back. |
Diana
Chief Inspector
Username: Diana
Post Number: 832
Registered: 2-2003
| | Posted on Saturday, October 22, 2005 - 9:29 pm: |
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Ruth Wakefield -- The Chocolate Chip Cookie.
http://www.ideafinder.com/history/inventions/story047.htm
At the Toll House Inn in Massachusetts in 1930 this lady had some cookie dough and she thought she would make it into chocolate flavored cookies. So she chopped up a chocolate bar and dumped the pieces in the dough expecting them to melt in the oven and make cookies that were chocolate through and through. Instead they just melted slightly and voila!
Serendipity |
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