News articles tagged with 'frequencies'
A voice only a mom could love: New insight into maternal auditory cortex plasticity
— 11 Jun 2009 12:23 | BiologyA recent study reveals changes specific to the mother mouse brain that may improve the detection of isolation calls from a mouse baby. The research, published by Cell Press in the 11th... — full story
Berkeley researchers create an 'invisibility cloak'
— 2 May 2009 19:30 | TechnologyThe great science fiction writer Arthur C. Clarke famously noted the similarities between advanced technology and magic. This summer on the big screen, the young wizard Harry Potter... — full story
Rats identify specific sounds in noisy environments
— 19 Nov 2008 16:50 | HealthA study conducted on hundreds of rats could help us understand how the brain identifies specific sounds in a noisy environment. The investigation, soon to be published in the journal... — full story
New solar energy material captures every colour of the rainbow
— 17 Oct 2008 14:59 | TechnologyResearchers have created a new material that overcomes two of the major obstacles to solar power: it absorbs all the energy contained in sunlight, and generates electrons in a way that... — full story
New micro honeycomb materials reduce aircraft noise
— 7 Oct 2008 06:24 | TechnologyNoise from commercial and military jet aircraft causes environmental problems for communities near airports, obliging airplanes to follow often complex noise-abatement procedures on... — full story
Engineers create 3-D material that can bend light backwards
— 13 Aug 2008 13:55 | TechnologyEngineers at the University of California, Berkeley, have for the first time designed 3-D materials that can reverse the natural direction of visible and near-infrared light, a development... — full story
Effects of context and seasonality on songbird brain
— 6 Aug 2008 06:15 | BiologyResearch conducted at Rutgers University has shown that exposure to a changed acoustic and social environment can rewire the way the brain processes sounds... — full story
How to make microwaves on a chip to replace X-rays for medical imaging and security
— 30 May 2008 20:15 | TechnologyIs microwave radiation the nondestructive imaging technology of the future? Microwaves with frequencies from a few hundred gigahertz (GHz) up to slightly over 1 terahertz (THz), penetrate... — full story
Unusual female frogs draw mates with ultrasonic calls
— 11 May 2008 18:22 | BiologyMost female frogs don't call; most lack or have only rudimentary vocal cords. A typical female selects a mate from a chorus of males and then - silently - signals her beau. But the... — full story
Research shows bats emitting more dB than a rock concert
— 1 May 2008 18:35 | BiologyAnnemarie Surlykke from the Institute of Biology, SDU, Denmark, and her colleague, Elisabeth Kalko, from the University of Ulm, Germany, studied the echolocation behaviour in 11 species... — full story