Recent Examples of geophone from the Web
That observation argues for the installation of permanent geophone networks in tourist areas around the Dead Sea.
The geophones record the scattering and reflection of vibrations to image underground structures, and tease out problems that may lay under the surface.
Geophones on the surface picked up the waves on their return and provided a depth reading.
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First Known Use of geophone
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Britannica.com: Encyclopedia article about geophone
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