Having trouble viewing this e-mail? Click here to view in a Web browser.
Click here to advertise in this news brief.
  Mobile version   RSS   Unsubscribe Sept. 14, 2011
 
Home   Publications   Meetings   Programs   Membership   Advocacy   Careers   Contact
 
 

Dark matter hinted at again at Cresst experiment
BBC News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Scientists may have seen more hints of the dark matter purported to make up a majority of the mass in the Universe. Researchers at the Cresst experiment in Italy say they have spotted 67 events in their detectors that may be caused by dark matter particles called Wimps. Read the associated Physical Review Letters abstract. More


Senate budget bill holds energy department science level
Science Insider    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Scientists usually howl like wounded puppies at the prospect of a flat budget for an important U.S. science agency. But given the budget-cutting mood of the current Congress, scientists supported by the Department of Energy (DOE) say they're greatly relieved at the action by a Senate spending panel. At the same time, there will likely be yelps from some members of the pack.  More

Bursts and the rhythm of communication
Science 2.0    Share    Share on FacebookTwitterShare on LinkedinE-mail article
People communicate in bursts, according to a new study that analyzed around 9,000 million calls for nearly a year. The effect of the bursts is that it slows down the information diffusion since the large periods of inactivity in the communication between two persons make it less likely that information is passed from one to the other. Read the associated Physical Review E abstract. More



How the ear distinguishes sweet sounds from sour notes
ScienceNOW    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A mathematical model may explain how the nerves in your ear sense harmony, a team of biophysicists reports. The model suggests that pleasant harmonies cause neurons to fire in regular patterns whereas discordant notes stimulate messier neuron activity. Read the associated Physical Review Focus article.
More

Flowing gas helps nanobubbles stick around
PhysicsWorld    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Physicists in the Netherlands say they have explained the mystery of why tiny nanobubbles on wet surfaces can endure for weeks, despite having extremely high internal pressures. Measuring about 1 µm across and 20 nm high, these highly stable entities are tiny versions of the ordinary bubbles that cling to the inside of a full beer or champagne glass. Read the associated APS Physics Viewpoint More

Discover our Cryogen-Free Family of Products

Quantum Design manufactures a full line of cryogen-free, automated material characterization systems for the scientific community. These systems provide temperatures from 0.05 to 1000 K and magnet fields up to 16 tesla. Cryogen-free systems include the Physical Property Measurement System (PPMS®), MPMS SQUID VSM, VersaLab, and the new PPMS DynaCool. MORE


A supernova fades gloriously into a supernova remnant
Popular Science    Share    Share on FacebookTwitterShare on LinkedinE-mail article
When light from an exploding star in the Large Magellanic Cloud reached Earth in 1987, it was the closest supernova explosion astronomers had witnessed in centuries. Now Supernova 1987a is making history again, this time as the youngest supernova remnant that can be seen from Earth. The supernova debris has been dimming in the years since its discovery, but a team of astronomers announced that the debris is now beginning to brighten again. This means that it is being lit by a different power source, and is a sign of 1987a's transition from supernova to supernova remnant. More

Fiber-Coupled High-Power Optical Amplifier
Sacher Lasertechnik offers fiber coupled optical amplifiers. Available wavelength: 650nm to 1120nm. Free space power of up to 2.5W @ 780nm and 2W @ 850nm are achieved with an M²<1.7. The fiber output version achieves more than 1W within a single mode polarization maintaining optical fiber. For more information contact us at 1-800-352-3639  or www.sacher-laser.com more


Climate and weather: Extreme measures
Nature News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Can violent hurricanes, floods and droughts be pinned on climate change? Scientists are beginning to say yes. More

Last words
Science News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The Tevatron's data may have more to say, even after the atom smasher shuts down. More

Sub-Miniature Non-MEMS Scanner for Small Size Imaging Systems are Suitable for Long Life Optical Scanner High Volume Dedicated Applications

Sub-Miniature size, lightweight, long life.
Mirror size: 6mm dia., 7x7mm or 12x7mm.
One fixed frequency to 1KHz.
Scan angle to 50 deg PTP optical.
Low power electronics.
Position output signal available.
High frequency and amplitude stability (to 0.05%).
Vacuum to 10-10 Torr optional.
Cryogenic to 100 deg C optional.
Jitter free, withstands shock and vibration
Used in instruments and portable systems in industrial, scientific, medical, aerospace and military applications worldwide.
Learn More. 


Video: Deducing the physics of how cats fall
The Atlantic    Share    Share on FacebookTwitterShare on LinkedinE-mail article
You know when a cat falls, it always lands on its feet. Thomas Kane was the kind of scientist who saw a cat fall and wanted to deduce the biophysics of the trick. In a series of experiments, he dropped cats and photographed them at high-speed, then broke their movements down into mathematics. More
 
 

APS Weekly NewsBrief
Colby Horton, Vice President of Publishing, 469.420.2601   Download media kit
Jennifer Maddox, Senior Content Editor, 469.420.2613   Contribute news


To provide feedback to APS, please contact Trish Lettieri, APS Director of Membership 301.209.3272
This edition of the APS Weekly NewsBrief was sent to ##Email##. To unsubscribe, click here.
Recent issues
Sept. 7, 2011
Aug. 31, 2011
Aug. 24, 2011
Aug. 24, 2011 Special



7701 Las Colinas Ridge, Ste. 800, Irving, TX 75063