American Institute of Physics

'Valley Girl' dialect expanding to males

The American English speech variant known as uptalk, or "Valley Girl speak" – marked by a rise in pitch at the ends of sentences – is typically associated with young southern Californian females. New research shows uptalk ...

dateDec 04, 2013 in Social Sciences
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Silent stalkers of dark ocean waters

The mating roar of a male harbor seal is supposed to attract a partner, not a predator. Unfortunately for the seals, scientists have found evidence that marine-mammal-eating killer whales eavesdrop on their ...

dateDec 03, 2013 in General Physics
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What water looks like to DNA

A team of biochemists and mathematicians have developed a sophisticated geometric model to predict how a biological molecule will interact with water molecules, computing the results up to 20 times faster ...

dateNov 19, 2013 in Materials Science
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Next-generation semiconductors synthesis

Although silicon semiconductors are nearly universal in modern electronics, devices made from silicon have limitations—including that they cease to function properly at very high temperatures. One promising alternative ...

dateNov 08, 2013 in Condensed Matter
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New aluminum alloy stores hydrogen

We use aluminum to make planes lightweight, store sodas in recyclable containers, keep the walls of our homes energy efficient and ensure that the Thanksgiving turkey is cooked to perfection. Now, thanks ...

dateNov 05, 2013 in Materials Science
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Designing an acoustic diode

Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode," envisioned ...

dateNov 01, 2013 in General Physics
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