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Scientists discover 'moving mountains'

Researchers at the University of Nevada, Reno recorded a cluster of nearly 1,600 small earthquakes beneath Lake Tahoe, causing the nearby Slide Mountain to rise by 8 millimeters. The earthquakes coincided with an unprecedented uplift of the mountain, which scientists believe was caused by magma movement about 20 miles deep.

SourceUniversity of Nevada, Reno·JournalScience·DateAug 10, 2004

Earthquakes beget earthquakes near and far

Researchers at Penn State found lags between the changes in forces and strength in laboratory simulations, with delays ranging from seconds to weeks after initial earthquakes. The study suggests a competition between compaction and dilation of granules in gouge zones contributes to delayed fault movements.

Polymers promote nerve regeneration

Researchers have developed microscale channels to guide neuron growth in damaged nerves, a breakthrough that shows promise for treating nerve injuries. The technique uses biodegradable polymer films with microscopic patterns to direct nerve cell growth, with initial results showing rats regaining use of their legs after injury.

Astrophysical jets in the lab

Caltech researchers use magnetic forces to create jet-like structures in a hydrogen plasma experiment, shedding light on the formation of astrophysical jets. The study involves running high electrical currents through a cylindrical metal chamber, producing spiral-shaped plumes similar to those observed in space.