News tagged with frequency comb
Scientists Build First 'Frequency Comb' To Display Visible 'Teeth'
Oct 29, 2009 |
4.9 / 5 (15) |
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(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. ...
An accurate speedometer for astronomy
Sep 09, 2008 |
4.8 / 5 (18) |
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Events on a cosmic scale are often barely discernable on Earth. This explains why astronomers are currently not able to prove directly that the universe is expanding at an ever increasing rate, nor can they ...
A fine-tooth comb to measure the accelerating universe
Sep 04, 2008 |
4.7 / 5 (20) |
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Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope ...
Creating the astro-comb to locate Earth-like planets
May 07, 2009 |
3.3 / 5 (6) |
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Researchers at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. have created an "astro-comb" to help astronomers detect lighter planets, more like Earth, around distant stars. The Harvard group will present ...
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New tool in the fight against mosquito-borne disease: A microbial 'mosquito net'
18 hours ago |
4.5 / 5 (2) |
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Earlier this year, researchers showed that they could cut the lives of disease-carrying mosquitoes in half by infecting them with a bacterium they took from fruit flies. Now, a new report in the December 24th issue of Cell, ...
Genomic toggle switches divide autoimmune diseases into distinct clusters
Dec 23, 2009 |
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Genomic switches can predispose an individual to one set of autoimmune disorders but protect the same person against another set of them, scientists at Stanford University School of Medicine have found.
Sniffing out clues to dogs' compulsive behavior
Dec 22, 2009 |
3.8 / 5 (4) |
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(PhysOrg.com) -- At first glance, a dog chasing its tail seems a harmless, if fruitless, pursuit. But for many dogs and their owners, the habit has a dark side, one that means endless hours and energy spent ...
Researchers develop revolutionary technology for manufacturing micro-scale devices
Dec 22, 2009 |
4 / 5 (3) |
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(PhysOrg.com) -- Cranfield University has developed new technology that could significantly reduce the manufacturing costs of complex devices such as electronic noses that sniff out explosives and dangerous chemicals and ...
Accelerators and Light Sources of Tomorrow (Part 1: From Linacs to Lasers)
Dec 22, 2009 |
4.6 / 5 (5) |
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From their humble beginnings as offshoots of the ordinary electric light bulb, particle accelerators have evolved in surprising directions. Among the most productive and promising developments have been light ...
Dispatcher-assisted bystander CPR best choice for possible cardiac arrest signs
Dec 22, 2009 |
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Dispatchers should assertively give cardiopulmonary resuscitation (CPR) instructions to bystanders who suspect someone is in cardiac arrest because the benefits from correctly recommending CPR for someone who needs it greatly ...
Researchers are on the path to creating nano-MRI images
Dec 22, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- Cornell researchers are devising methods to detect the magnetic fields of individual electrons and atomic nuclei, which they hope to use to make a nanoscale version of magnetic resonance imaging.
Older adults may have a higher risk of complications and death after abdominal surgery
Dec 21, 2009 |
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The risk of complications and early death after commonly performed abdominal surgical procedures appears to be higher among older adults, according to a report in the December issue of Archives of Surgery.
Machine Translates Thoughts into Speech in Real Time
Medicine & Health / Neuroscience
Dec 21, 2009 |
4.8 / 5 (55) |
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(PhysOrg.com) -- By implanting an electrode into the brain of a person with locked-in syndrome, scientists have demonstrated how to wirelessly transmit neural signals to a speech synthesizer. The "thought-to-speech" ...
Oceans becoming noisier thanks to pollution -- report
Dec 20, 2009 |
4 / 5 (4) |
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The world's oceans are becoming noisier thanks to pollution, with potentially harmful effects for whales, dolphins and other marine life, US scientists said in a study published Sunday.
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