Earth

Irvine, Calif., Aug. 20, 2010 – Earthquakes have rocked the powerful San Andreas fault that splits California far more often than previously thought, according to UC Irvine and Arizona State University researchers who have charted temblors there stretching back 700 years.

The findings, to be published in the Sept. 1 issue of Geology, conclude that large ruptures have occurred on the Carrizo Plain portion of the fault – about 100 miles northwest of Los Angeles – as often as every 45 to 144 years. But the last big quake was in 1857, more than 150 years ago.

Emissions of carbon dioxide are causing ocean acidification as well as global warming. Scientists have previously used computer simulations to quantify how curbing of carbon dioxide emissions would mitigate climate impacts. New computer simulations have now examined the likely effects of mitigation scenarios on ocean acidification trends. They show that both the peak year of emissions and post-peak reduction rates influence how much ocean acidity increases by 2100.

In "The Sign of the Four" Sherlock Holmes tells Watson he has written a monograph on 140 forms of cigar-, cigarette-, and pipe-tobacco, "with colored plates illustrating the difference in the ash." He finds the ash invaluable for the identification of miscreants who happen to smoke during the commission of a crime.

A magnitude-8.1 earthquake and tsunami that killed 192 people last year in Samoa, American Samoa and Tonga was in fact a triple-whammy.

The 8.1 "great earthquake" concealed and triggered two major quakes of magnitude 7.8, seismologists report in a paper in this week's issue of the journal Nature.

fire thought of as the quintessential human invention. Now scientists have found that emerging, more energy efficient lighting technologies could be the key to a better quality of life.

New research published today, Thursday, 19 August, in a special issue of IOP Publishing's Journal of Physics D: Applied Physics shows that solid-state lighting (SSL), a new technology based on semiconductor light-emitting diodes (LEDs), has the potential to increase our consumption of light and therefore our quality of life.

SALT LAKE CITY, Aug. 18, 2010 – A magnitude-8.1 earthquake and tsunami that killed 192 people last year in Samoa, American Samoa and Tonga actually was a triple whammy: The 8.1 "great earthquake" concealed and triggered two major quakes of magnitude 7.8, seismologists report in the Thursday, Aug. 19, issue of the journal Nature.

ITHACA, N.Y. — It's the Clark Kent of oxide compounds, and – on its own – it is pretty boring. But slice europium titanate nanometers thin and physically stretch it, and then it takes on super hero-like properties that could revolutionize electronics, according to new Cornell research. (Nature, Aug. 19, 2010.)