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INFILTEC: How to Build an Inexpensive Seismometer - make seismograph kit

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Sep 9, Links to amateur seismometers by Kevin Schavee. Clickable map of Building a Seismograph -includes diagram and parts list. rainbow line.

Description:Basic Idea Here is a nice, informative picture with text from http: As the restoring forces are very slight, maybe 0. Seismometer Overview The long dimension of the base is usually about 18 inches for convenience. Adjusting the Period Screw adjusts the period of the swing. The Leveling Screws help position the magnet in the coil assembly. The pivot details are not shown here, but are critical to successful performance.

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