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phoebe

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by

lis lab3

on 17 June 2013

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Transcript of phoebe

Pocket Watch
By Phoebe Ryu
It was invented in 1510.
They used "Spring Technology" with coiled springs.
First the Pocket Watch was off by an hour because the springs were coiled to tight but when they added the minute hand the springs weren't as tight and they were on time.
Peter Henlein a clockmaker and locksmith in Nuremberg Germany invented it.

Older Pocket Watch.
Full transcript