| 11. | But most of the tests were smaller _ undetectable without a seismograph.
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| 12. | The previous night's quake measured 4 on seismographs.
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| 13. | The modern broadband seismograph can record a very broad range of frequencies.
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| 14. | Two seismographs would give two intersecting circles, with two possible locations.
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| 15. | The intensity of a wave is measured through use of a seismograph.
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| 16. | The museum was renovated in 1994, the seismograph building in 1995.
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| 17. | They protested when NASA switched off the seismographs in the mid-1970s.
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| 18. | For sheer hate, it was off the seismograph.
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| 19. | Events on the street jag and dip like a seismograph during an earthquake.
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| 20. | Now, like human seismographs, they recorded his every quake and slip.
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