Love wave

[ lŭv ]

A type of seismic surface wave in which particles move with a side-to-side motion perpendicular to the main propagation of the earthquake. The amplitude of this motion decreases with depth. Love waves cause the rocks they pass through to change in shape. They travel faster than Rayleigh waves. Love waves are named after their discoverer, British mathematician Augustus Love (1863-1940).

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IS YOUR DESERT PLANT KNOWLEDGE SUCCULENT OR DRIED UP?

Cactus aficionados, don't get left in the dust with this quiz on desert plants. Find out if you have the knowledge to survive this prickly foray into the desert!
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This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.