File:GeoPhone.JPG
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Size of this preview: 441 × 599 pixels. Other resolutions: 177 × 240 pixels | 579 × 786 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:58, 12 August 2009 | 579 × 786 (171 KB) | SpaceFlight89 | better? | |
15:33, 12 August 2009 | 1,200 × 1,600 (662 KB) | SpaceFlight89 | {{Information |Description={{en|1=This image is of a geophone, used to detect vibrations, specifically in the earth. It is made by Geosource Inc. It is a Model MD-79, Made in USA, 8Hz, 335 ohm. It is listed with a "MODIFIED" date of 12-9- |
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