A green and clean environment is a human right!
General => General Discussion => Topic started by: Hydrocars on June 11, 2016, 07:20:11 am
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30 to 40 hertz vibrates the earth, 120 to 130 the floor, and 200 hertz the entire structure. Amplitude has some untested affect on the applied sine wave. The height of the wave seems to further jar.