Updated: 2012-03-30 16:47:53
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Chilean astronomer publishes first ALMA findings News Picks home Recycling plastic waste into carbon fibers By Physics Today on March 30, 2012 12:47 PM No Comments No TrackBacks New Scientist Amit Naskar and coworkers at Oak Ridge National Laboratory in Tennessee have found a way to convert the polyethylene in used plastic bags and other plastic waste into carbon fibers that can be fine-tuned for specific applications . Published in the journal Advanced Materials their method involves mixing the polyethylene with polyactic acid , a compound derived from cornstarch or sugar cane . Then they heat the mixture and spin it into bundles of
Updated: 2012-03-30 12:11:41
Lake Shore Cryotronics, Inc.,is pleased to introduce its new three-year warranty for its entire portfolio of probe stations, systems, instruments, and sensors.
Updated: 2012-03-30 12:11:27
Keithley Introduces High Voltage System SourceMeter® Instrument Optimized for High Power Semiconductor Test
Updated: 2012-03-30 12:11:19
Keithley Introduces High Voltage System SourceMeter® Instrument Optimized for High Power Semiconductor Test
Updated: 2012-03-30 12:11:07
www.anfiber.com,Anfiber company is one of the largest manufacturers of Passive Optical Components and Active optoelectronic components products in the world,as a professional optical device manufacturer.
Updated: 2012-03-30 12:11:01
Lake Shore Cryotronics, Inc., manufacturers of scientific sensors, instruments, and systems for precise measurement and control.
Updated: 2012-03-29 16:25:58
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Environmental conference addresses global sustainability News Picks home Telescope images yield largest-ever portrait of the night sky By Physics Today on March 29, 2012 12:25 PM No Comments No TrackBacks BBC Ten years in the making , a colossal picture of the Milky Way galaxy has been created from thousands of individual images captured by two ground-based telescopes developed by the UK . There are about one billion stars in there this is more than has been in any other image produced by surveys , said Nick Cross from the University of Edinburgh . Because of the vastness of the image , Cross and colleagues have produced an online
Updated: 2012-03-29 15:50:10
Quantum dots get electrons hopping
Updated: 2012-03-29 14:33:53
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Lightning produces neutrons , according to new research News Picks home Telescope images yield largest-ever portrait of the night sky Environmental conference addresses global sustainability By Physics Today on March 29, 2012 10:33 AM No Comments No TrackBacks New York Times This week the Planet Under Pressure conference in London brought together nearly 3000 people to discuss humanity's impact on Earth's environment . Without urgent action , we could face threats to water , food , biodiversity and other critical resources , wrote conference cochairs Lidia Brito and Mark Stafford Smith in a formal declaration issued at the end of the
Updated: 2012-03-29 11:00:00
Dan Falk reviews Adam Frank's About Time: From Sun Dials to Quantum Clocks, How the Cosmos Shapes Our Lives
Updated: 2012-03-28 15:36:46
, Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar New EPA standards will limit greenhouse gas emissions News Picks home Lightning produces neutrons , according to new research By Physics Today on March 28, 2012 11:36 AM No Comments No TrackBacks Arstechnica Russian scientists have found that as many as 5000 low-energy neutrons per cubic meter are produced every second by lightning strikes . The results of their research were published last week in Physical Review Letters Based on research begun in 1985, the new experiment used three detectors sensitive to low-energy neutrons one aboveground , one partially shielded in a building , and one underground . The electrical activity of
Updated: 2012-03-28 13:58:37
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Ancient stone monolith may have marked changing seasons News Picks home Lightning produces neutrons , according to new research New EPA standards will limit greenhouse gas emissions By Physics Today on March 28, 2012 9:58 AM No Comments No TrackBacks Los Angeles Times On Tuesday the Obama administration released its long-awaited proposal to limit greenhouse gas emissions from power plants , which are the biggest single source of such emissions in the US . Under the new rule , the Environmental Protection Agency would bar new plants from emitting more than 1000 pounds of carbon dioxide per megawatt hour of electricity generated . It
Updated: 2012-03-27 18:30:14
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Avalanche experts help make better ice cream News Picks home Ancient stone monolith may have marked changing seasons By Physics Today on March 27, 2012 2:30 PM No Comments No TrackBacks Space.com A monolith located in Manchester , UK , is thought to have been erected by Neolithic people around 2000 BC as an astronomical tool to mark the changing seasons , writes Clara Moskowitz for Space.com . When Daniel Brown of Nottingham Trent University and colleagues recently surveyed the site , they discovered a high density of packing stones on one side , which indicates that the triangular-shaped stone was intentionally oriented to face a
Updated: 2012-03-27 15:28:35
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Mexico City's new building code tested by earthquake News Picks home Ancient stone monolith may have marked changing seasons Avalanche experts help make better ice cream By Physics Today on March 27, 2012 11:28 AM No Comments No TrackBacks BBC To improve the quality of the Nestlé company's ice cream , its food scientists teamed up with avalanche experts at the Institute for Snow and Avalanche Research in Switzerland to study ice crystal formation . Because the temperature does not remain constant in home freezers , ice cream continuously melts and refreezes , which causes ice crystals to form , merge , and grow . The crystals affect
Updated: 2012-03-26 15:29:13
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Mathematicians model snowflakes using physical laws News Picks home Mexico City's new building code tested by earthquake Study challenges prevailing theory of Moon's origin By Physics Today on March 26, 2012 11:29 AM No Comments No TrackBacks Science The leading theory for the Moon's formation is that Earth and a Mars-sized planet collided some 4.5 billion years ago and produced a disk of magma that orbited Earth and over time coalesced to form the Moon . If so , say researchers , the Moon's chemical composition should reflect that of both Earth and the other planet . However , studies of lunar rocks collected by the Apollo missions in
Updated: 2012-03-23 14:00:00
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar China to work with Shell to extract shale gas News Picks home Mathematicians model snowflakes using physical laws By Physics Today on March 23, 2012 10:00 AM No Comments No TrackBacks Scientific American A group of researchers in Germany has succeeded in using computer modeling to simulate the faceted pattern of snowflake formation . Using basic conservation laws and thermodynamics , Harald Garcke of the University of Regensburg and colleagues were able to model the way the crystal surface changes over time . They also managed to model , simultaneously , the two main types of snowflake growth : dendritic growth , in which the flakes
Updated: 2012-03-23 00:53:59
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar SESAME participants put politics aside to fund synchrotron News Picks home Mathematicians model snowflakes using physical laws China to work with Shell to extract shale gas By Physics Today on March 23, 2012 8:53 AM No Comments No TrackBacks BBC On Tuesday Shell announced that it had signed the first-ever production-sharing contract for shale gas exploration in China with state-owned China National Petroleum Corporation . Shell will apply its advanced technology , operational expertise and global experience in the project to jointly develop the shale gas resources with CNPC , the Anglo-Dutch firm said in a release Several other foreign
Updated: 2012-03-22 18:30:38
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar MESSENGER sheds new light on Mercury News Picks home SESAME participants put politics aside to fund synchrotron By Physics Today on March 22, 2012 2:30 PM No Comments No TrackBacks Nature Israel and Iran have put aside their differences to join Jordan and Turkey in providing a combined total of US$20 million for the construction of the Synchrotron-light for Experimental Science and Applications in the Middle East SESAME The project , located in Al Balq’a , Jordan , needs an additional 15 million from other partner nations to complete its first four beamlines in 2015. SESAME has managed to succeed despite political upheaval including
Updated: 2012-03-21 19:43:42
Physics Today News Picks A blog of hand-picked science news from the staff of Physics Today Home Print edition Advertising Buyers Guide Jobs Events calendar Human-made noise pollution can affect plant life News Picks home US imposes moderate tariffs on Chinese solar panels By Physics Today on March 21, 2012 3:43 PM No Comments No TrackBacks New York Times After the US Commerce Department concluded that China gave illegal export subsidies to its solar panel manufacturers , the US decided to impose tariffs of 2.9 4.73 on all solar panels imported from China . Chinese solar panels control about half of the current US market US panels control less than a third . Although the new tariffs may not greatly affect the market , much steeper tariffs could be imposed this May if the Commerce
