Edison Invention Series #4 Traditional Cache

This cache has been archived.

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I can't find any recent responses from the Cache Owner about maintaining this cache which makes it appear the Cache Owner is either unwilling or unable to maintain the cache. Cache maintenance includes listing maintenance including updating any changes to the text, updating coordinates, removing needs maintenance attributes and enabling the listing. The cache will be archived and removed from the active cache listings.

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Hidden : 10/19/2009
Difficulty:
2 out of 5
Terrain:
1.5 out of 5

Size: Size: micro (micro)

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Geocache Description:

This cache was transferred owners from Tim Usko to Harpster68

A cache and Dash with History

Thomas Edison held a record 1,093 patents for his inventions, this series visits a few of the less known inventions he made.

Replaced the container in a slightly different location in the 3 foot area. Also changed the difficulty and terrain to accurately reflect the cache.

Thomas Edison

The first great invention developed by Edison in Menlo Park was the tin foil phonograph.

While working to improve the efficiency of a telegraph transmitter, he noted that the tape of the machine gave off a noise resembling spoken words when played at a high speed.

This caused him to wonder if he could record a telephone message. He began experimenting with the diaphragm of a telephone receiver by attaching a needle to it.

He reasoned that the needle could prick paper tape to record a message.

His experiments led him to try a stylus on a tinfoil cylinder, which, to his great surprise, played back the short message he recorded, "Mary had a little lamb."


 Edison's Phonograph

Congrats to CacheCrewCO for FTF.


GCRM

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