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Curtains made of carbon fiber rods are specifically designed to help buildings withstand these |
earthquakes
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$200 |
J |
SCIENCE AROUND US |
2018-09-11 |
#7817 |
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In these events Love waves shake the ground rather than rolling it |
earthquakes
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$200 |
J |
SHAKE, RATTLE & ROLL WITH SCIENCE |
2017-06-30 |
#7565 |
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Seismology studies the seismic waves produced by these plate shifts |
earthquakes
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$400 |
DJ |
-OLOGIES |
2010-06-02 |
#5933 |
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In 1931 2 Americans modified the Mercalli scale to measure the intensity of these in California |
earthquakes
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$400 |
DJ |
GENERAL SCIENCE |
2002-05-13 |
#4086 |
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Studying data from one of these occurrences, Mohorovicic discovered the crust-mantle boundary |
earthquakes
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$200 |
J |
SCIENCE |
1990-09-06 |
#1379 |
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In the 1st century A.D. the Chinese invented the 1st seismometer to detect these |
earthquakes
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$100 |
J |
SCIENCE |
1989-04-07 |
#1070 |
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Data from resistivity gauges, gravimeters, & creep meters are being used in efforts to predict these |
earthquakes
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$100 |
J |
PHYSICAL SCIENCE |
1987-11-02 |
#726 |