PocketLab based Seismograph

Living in California, earthquakes are a part of life. Sooner or later, you'll feel one, and the first time can be pretty scary! If it's a small earthquake, which thankfully most are, it's actually hard to know for sure until you check the news later on. Sometimes a painting shakes on the wall, or a ...
By: drbakker

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from Instructables: exploring - technology http://bit.ly/1KBgdE7