How Does a Seismograph Work?

Answer

A seismograph is a very unique device that is used to measure earthquakes. This works by being connected to bedrock and measuring vibrations. You can find more information here: http://edhelper.com/ReadingComprehension_54_2604.html
Q&A Related to "How Does a Seismograph Work"
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Acupuncture has been practiced for over 5,000 years. This alternative medicine, which originated in China, still has many misconceptions surrounding it in spite of its long history.
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