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News tagged with barrier

New charging method could greatly reduce battery recharge time

(PhysOrg.com) -- Part of the headache of having to constantly recharge batteries is not just how often they need to be charged, but also the time it takes to charge them. In a new study, researchers have proposed ...

Physics / General Physics

created Mar 11, 2010 | popularity 4.7 / 5 (25) | comments 14 | with audio podcast report

Mantis shrimps could show us the way to a better DVD

(PhysOrg.com) -- The remarkable eyes of a marine crustacean could inspire the next generation of DVD and CD players, according to a new study from the University of Bristol published today in Nature Photonics.

Physics / Optics & Photonics

created Oct 25, 2009 | popularity 4.9 / 5 (19) | comments 5

Could a computer one day rewire itself? New nanomaterial ‘steers’ current in multiple dimensions

Scientists at Northwestern University have developed a new nanomaterial that can "steer" electrical currents. The development could lead to a computer that can simply reconfigure its internal wiring and become an entirely ...

Nanotechnology / Nanomaterials

created Oct 16, 2011 | popularity 5 / 5 (16) | comments 17 | with audio podcast

Physicists Detect Single-Electron Tunneling with Quantum Dots

(PhysOrg.com) -- Detecting the coherent motion of a single electron is a challenge, for the simple reason of scale: the timescale of the coherent motion of a single-electron wave function is in the picosecond ...

Physics / Quantum Physics

created May 06, 2009 | popularity 3.8 / 5 (18) | comments 1 feature

Dutch PhD student develops device to combat noise

Johan Wesselink of the University of Twente, The Netherlands, has developed a device to actively combat noise nuisance. This invention curtails sound waves and vibrations by producing anti-noise. The researcher is confident ...

Technology / Engineering

created Dec 01, 2009 | popularity 3.9 / 5 (17) | comments 17

Researchers discover a potential on-off switch for nanoelectronics

As electronic circuits shrink from finely etched lines in silicon wafers to nearly elusive proportions, researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and Columbia University ...

Nanotechnology / Nanophysics

created Mar 03, 2009 | popularity 4.9 / 5 (11) | comments 2

Reef boom beats doom

(PhysOrg.com) -- Marine scientists say they are astonished at the spectacular recovery of certain coral reefs in Australia's Great Barrier Reef Marine Park from a devastating coral bleaching event in 2006.

Space & Earth / Environment

created Apr 21, 2009 | popularity 4 / 5 (13) | comments 4

Great Barrier Reef under serious threat: report

Australia's Great Barrier Reef is in serious jeopardy as global warming and chemical runoff threaten to kill marine species and cause serious outbreaks of disease, a report warned Wednesday.

Space & Earth / Environment

created Sep 02, 2009 | popularity 3.4 / 5 (15) | comments 1

Cheers as Australia's carbon tax hits parliament

Cheers erupted in Australia's Parliament House after Prime Minister Julia Gillard presented her bill for a new pollution tax she hopes will help counter climate change.

Space & Earth / Environment

created Sep 13, 2011 | popularity 3.6 / 5 (14) | comments 33

Scientists cultivate human brain's most ubiquitous cell in lab dish

Pity the lowly astrocyte, the most common cell in the human nervous system.

Biology / Biotechnology

created May 22, 2011 | popularity 4.5 / 5 (10) | comments 0 | with audio podcast

Research team devises a means for measuring quantum tunneling time

(Phys.org) -- In a bit of inspired research, a diverse team of researchers has devised a means for measuring the time it takes for an electron to tunnel through a barrier. Led by Israel's Weizmann Institute ...

Physics / Quantum Physics

created May 18, 2012 | popularity 5 / 5 (9) | comments 0 | with audio podcast report

Scientists find out what fear looks like from space

(PhysOrg.com) -- While most of us could find no better use for Google Earth than checking out a holiday destination, scientists in Sydney have shown it can reveal a lot about the behaviour of marine life on ...

Space & Earth / Environment

created Jun 16, 2011 | popularity 4.8 / 5 (9) | comments 0 | with audio podcast

China ship 'gouged two-mile scar' in Great Barrier Reef

A Chinese ship that spent nine days stranded on the Great Barrier Reef gouged a three-kilometre (two-mile) scar in the coral that could take decades to recover, a top expert said on Tuesday.

Space & Earth / Environment

created Apr 13, 2010 | popularity 4.7 / 5 (9) | comments 2

Nanoparticles may cause DNA damage across a cellular barrier

(PhysOrg.com) -- Scientists have shown in the laboratory that metal nanoparticles damaged the DNA in cells on the other side of a cellular barrier. The research, by the University of Bristol, is published ...

Nanotechnology / Bio & Medicine

created Nov 05, 2009 | popularity 4.3 / 5 (9) | comments 1

Better glasses-free 3-D: A fundamentally new approach

Nintendo's 3DS portable gaming system, the first commercial device with a glasses-free 3-D screen, has been available in the United States for barely a month, and it’s already sold more than a million ...

Technology / Engineering

created May 04, 2011 | popularity 4.2 / 5 (9) | comments 7 | with audio podcast