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Engineers demonstrate first room-temperature semiconductor source of coherent Terahertz radiation 
Engineers and applied physicists from Harvard University have demonstrated the first room-temperature electrically-pumped semiconductor source of coherent Terahertz (THz) radiation, also known as T-rays.
Engineers and applied physicists from Harvard University have demonstrated the first room-temperature electrically-pumped semiconductor source of coherent Terahertz (THz) radiation, also known as T-rays.
Physics
Source: EurekAlert
Posted on: Monday, May 19, 2008, 8:20am
Rating: | Views: 1197 | Comments: 0
Source: EurekAlert
Posted on: Monday, May 19, 2008, 8:20am
Rating: | Views: 1197 | Comments: 0
Physics Professor Demonstrates Lasing Without Inversion (LWI)
A Western Illinois University physics professor has discovered a way to understand lasing without inversion, which will allow the generation of X-ray and gamma-ray laser light without needing large energy input to begin with.
A Western Illinois University physics professor has discovered a way to understand lasing without inversion, which will allow the generation of X-ray and gamma-ray laser light without needing large energy input to begin with.
Improved ion mobility is key to new hydrogen storage compound
A materials scientist at the National Institute of Standards and Technology (NIST) has deciphered the structure of a new class of materials that can store relatively large quantities of hydrogen within its crystal structure for later release.
A materials scientist at the National Institute of Standards and Technology (NIST) has deciphered the structure of a new class of materials that can store relatively large quantities of hydrogen within its crystal structure for later release.
Physics
Source: EurekAlert
Posted on: Friday, May 16, 2008, 6:23pm
Rating: | Views: 1214 | Comments: 0
Source: EurekAlert
Posted on: Friday, May 16, 2008, 6:23pm
Rating: | Views: 1214 | Comments: 0
Written in the skies: why quantum mechanics might be wrong
Observations of the cosmic microwave background might deal blow to theory.
Observations of the cosmic microwave background might deal blow to theory.
Study Explores Physics of Wrinkling, Folding
Scientists at the University of Chicago and the University of Santiago in Chile have explained, for the first time, the physics that governs how thin materials at scales millions of times different in thickness make the transition from wrinkles into folds under compression.
Scientists at the University of Chicago and the University of Santiago in Chile have explained, for the first time, the physics that governs how thin materials at scales millions of times different in thickness make the transition from wrinkles into folds under compression.
Physics
Source: Newswise
Posted on: Thursday, May 15, 2008, 3:55pm
Rating: | Views: 1389 | Comments: 0
Source: Newswise
Posted on: Thursday, May 15, 2008, 3:55pm
Rating: | Views: 1389 | Comments: 0
Can one 'pin down' electrons?
When atoms form molecules, they share their outer electrons and this creates a negatively charged cloud. Here, electrons buzz around between the two positively charged nuclei, making it impossible to tell which nucleus they belong to. They are delocalized. But is this also true for the electrons located closer to the nucleus?
When atoms form molecules, they share their outer electrons and this creates a negatively charged cloud. Here, electrons buzz around between the two positively charged nuclei, making it impossible to tell which nucleus they belong to. They are delocalized. But is this also true for the electrons located closer to the nucleus?
Physics
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 1:46pm
Rating: | Views: 1160 | Comments: 0
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 1:46pm
Rating: | Views: 1160 | Comments: 0
MIT solves gravity-defying bird beak mystery
As Charles Darwin showed nearly 150 years ago, bird beaks are exquisitely adapted to the birds' feeding strategy. A team of MIT mathematicians and engineers has now explained exactly how some shorebirds use their long, thin beaks to defy gravity and transport food into their mouths.
As Charles Darwin showed nearly 150 years ago, bird beaks are exquisitely adapted to the birds' feeding strategy. A team of MIT mathematicians and engineers has now explained exactly how some shorebirds use their long, thin beaks to defy gravity and transport food into their mouths.
Physics
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 1:46pm
Rating: | Views: 1734 | Comments: 0
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 1:46pm
Rating: | Views: 1734 | Comments: 0
Physicists demonstrate how information can escape from black holes
Physicists at Penn State have provided a mechanism by which information can be recovered from black holes, those regions of space where gravity is so strong that, according to Einstein's theory of general relativity, not even light can escape.
Physicists at Penn State have provided a mechanism by which information can be recovered from black holes, those regions of space where gravity is so strong that, according to Einstein's theory of general relativity, not even light can escape.
Physics
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 8:48am
Rating: | Views: 1216 | Comments: 0
Source: EurekAlert
Posted on: Thursday, May 15, 2008, 8:48am
Rating: | Views: 1216 | Comments: 0
Lord of the Wings
Dragonflies get a boost from out-of-sync flapping
Dragonflies get a boost from out-of-sync flapping
Physics
Source: Science
Posted on: Thursday, May 15, 2008, 8:48am
Rating: | Views: 1744 | Comments: 0
Source: Science
Posted on: Thursday, May 15, 2008, 8:48am
Rating: | Views: 1744 | Comments: 0
Einstein's letter calls Bible 'pretty childish'
A letter being auctioned in London this week adds more fuel to the long-simmering debate about Albert Einstein's religious views. In the note, written the year before his death, Einstein dismissed the idea of God as the product of human weakness and the Bible as "pretty childish."
A letter being auctioned in London this week adds more fuel to the long-simmering debate about Albert Einstein's religious views. In the note, written the year before his death, Einstein dismissed the idea of God as the product of human weakness and the Bible as "pretty childish."
Physics
Source: USA Today
Posted on: Thursday, May 15, 2008, 8:47am
Rating: | Views: 1256 | Comments: 0
Source: USA Today
Posted on: Thursday, May 15, 2008, 8:47am
Rating: | Views: 1256 | Comments: 0
Sticky gecko feet: The role of temperature and humidity
A team of five University of Akron researchers has published the paper, “Sticky gecko feet: the role of temperature and humidity” in PLoS ONE, an open-access, online journal for peer-reviewed scientific and medical research.
A team of five University of Akron researchers has published the paper, “Sticky gecko feet: the role of temperature and humidity” in PLoS ONE, an open-access, online journal for peer-reviewed scientific and medical research.
Physics
Source: EurekAlert
Posted on: Wednesday, May 14, 2008, 8:51am
Rating: | Views: 1236 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, May 14, 2008, 8:51am
Rating: | Views: 1236 | Comments: 0
New material may be step towards 3D invisibility cloak
A prism that bends light the "wrong way" could be the first 3D version of the 'metamaterials' that handle light in ways normal lenses and mirrors can't
A prism that bends light the "wrong way" could be the first 3D version of the 'metamaterials' that handle light in ways normal lenses and mirrors can't
Physics
Source: New Scientist
Posted on: Tuesday, May 13, 2008, 10:08am
Rating: | Views: 1305 | Comments: 0
Source: New Scientist
Posted on: Tuesday, May 13, 2008, 10:08am
Rating: | Views: 1305 | Comments: 0
Physics' wonder boy to test Einstein's theories
Arkani-Hamed is only in his mid-30s, but he has already distinguished himself as one of the leading thinkers in the field of particle physics. His revolutionary ideas about the way the universe works will finally be put to the test later this year at Switzerland's Large Hadron Collider.
Arkani-Hamed is only in his mid-30s, but he has already distinguished himself as one of the leading thinkers in the field of particle physics. His revolutionary ideas about the way the universe works will finally be put to the test later this year at Switzerland's Large Hadron Collider.
Warming up for magnetic resonance imaging
Standard magnetic resonance imaging, MRI, is a superb diagnostic tool but one that suffers from low sensitivity, requiring patients to remain motionless for long periods of time inside noisy, claustrophobic machines. A new MRI method, much faster, more selective -- able to distinguish even among specific target molecules -- and many thousands of times more sensitive, has now been developed
Standard magnetic resonance imaging, MRI, is a superb diagnostic tool but one that suffers from low sensitivity, requiring patients to remain motionless for long periods of time inside noisy, claustrophobic machines. A new MRI method, much faster, more selective -- able to distinguish even among specific target molecules -- and many thousands of times more sensitive, has now been developed
Physics
Source: EurekAlert
Posted on: Friday, May 09, 2008, 9:04am
Rating: | Views: 1197 | Comments: 0
Source: EurekAlert
Posted on: Friday, May 09, 2008, 9:04am
Rating: | Views: 1197 | Comments: 0
Made-to-order isotopes hold promise on science's frontier
Designer labels have a lot of cachet -- a principle that’s equally true in fashion and physics. The future of nuclear physics is in designer isotopes -- the relatively new power scientists have to make specific rare isotopes to solve scientific problems and open doors to new technologies, according to Bradley Sherrill.
Designer labels have a lot of cachet -- a principle that’s equally true in fashion and physics. The future of nuclear physics is in designer isotopes -- the relatively new power scientists have to make specific rare isotopes to solve scientific problems and open doors to new technologies, according to Bradley Sherrill.
Physics
Source: EurekAlert
Posted on: Friday, May 09, 2008, 9:04am
Rating: | Views: 1197 | Comments: 0
Source: EurekAlert
Posted on: Friday, May 09, 2008, 9:04am
Rating: | Views: 1197 | Comments: 0
Study may explain variations in superconducting temperatures
New experiments at Cornell have verified a theory that variations in the distance between atoms in cuprate superconductors account for differences in the temperature at which the material begins to superconduct. A better understanding of the process could lead to superconductors that work at higher temperatures.
New experiments at Cornell have verified a theory that variations in the distance between atoms in cuprate superconductors account for differences in the temperature at which the material begins to superconduct. A better understanding of the process could lead to superconductors that work at higher temperatures.
Physics
Source: Cornell University
Posted on: Thursday, May 08, 2008, 11:26am
Rating: | Views: 1198 | Comments: 0
Source: Cornell University
Posted on: Thursday, May 08, 2008, 11:26am
Rating: | Views: 1198 | Comments: 0
Record-setting laser may aid searches for Earthlike planets
Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology (NIST) have demonstrated an ultrafast laser that offers a record combination of high speed, short pulses and high average power.
Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology (NIST) have demonstrated an ultrafast laser that offers a record combination of high speed, short pulses and high average power.
Physics
Source: EurekAlert
Posted on: Wednesday, May 07, 2008, 10:24am
Rating: | Views: 1231 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, May 07, 2008, 10:24am
Rating: | Views: 1231 | Comments: 0
Of myths and men
Worries about an apocalypse unleashed by particle accelerators are not new, says Philip Ball. They have their source in old myths, which are hard to dispel.
Worries about an apocalypse unleashed by particle accelerators are not new, says Philip Ball. They have their source in old myths, which are hard to dispel.
The Physics of Whipped Cream
Let's do a little science experiment. If you have a can of whipped cream in the fridge, go get it out. Spray a generous dollop into a spoon and watch carefully.
Let's do a little science experiment. If you have a can of whipped cream in the fridge, go get it out. Spray a generous dollop into a spoon and watch carefully.
NASA to send a probe to the sun
The Johns Hopkins University Applied Physics Laboratory is sending a spacecraft closer to the sun than any probe has ever gone - and what it finds could revolutionize what we know about our star and the solar wind that influences everything in our solar system.
The Johns Hopkins University Applied Physics Laboratory is sending a spacecraft closer to the sun than any probe has ever gone - and what it finds could revolutionize what we know about our star and the solar wind that influences everything in our solar system.
Quantum camera snaps objects it cannot 'see'
Researchers say they can photograph an object using light that didn't touch it by exploiting a quantum effect but other experts remain cautious
Researchers say they can photograph an object using light that didn't touch it by exploiting a quantum effect but other experts remain cautious
Physics
Source: New Scientist
Posted on: Friday, May 02, 2008, 9:18am
Rating: | Views: 1522 | Comments: 0
Source: New Scientist
Posted on: Friday, May 02, 2008, 9:18am
Rating: | Views: 1522 | Comments: 0
Supercomputer to Simulate Extreme Stellar Physics
Robert Fisher and Cal Jordan are among a team of scientists who will expend 22 million computational hours during the next year on one of the world’s most powerful supercomputers, simulating an event that takes less than five seconds.
Robert Fisher and Cal Jordan are among a team of scientists who will expend 22 million computational hours during the next year on one of the world’s most powerful supercomputers, simulating an event that takes less than five seconds.
Physics
Source: Newswise
Posted on: Thursday, May 01, 2008, 10:55am
Rating: | Views: 1205 | Comments: 0
Source: Newswise
Posted on: Thursday, May 01, 2008, 10:55am
Rating: | Views: 1205 | Comments: 0
High-flying electrons may provide new test of quantum theory
Researchers at the National Institute of Standards and Technology (NIST) and Max Planck Institute for Physics in Germany believe they can achieve a significant increase in the accuracy of one of the fundamental constants of nature by boosting an electron to an orbit as far as possible from the atomic nucleus that binds it.
Researchers at the National Institute of Standards and Technology (NIST) and Max Planck Institute for Physics in Germany believe they can achieve a significant increase in the accuracy of one of the fundamental constants of nature by boosting an electron to an orbit as far as possible from the atomic nucleus that binds it.
Physics
Source: EurekAlert
Posted on: Tuesday, Apr 29, 2008, 5:26pm
Rating: | Views: 1245 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 29, 2008, 5:26pm
Rating: | Views: 1245 | Comments: 0
Beating the codebreakers with quantum cryptography
Quantum cryptography may be essentially solved, but getting the funky physics to work on disciplined computer networks is a whole new headache.
Quantum cryptography may be essentially solved, but getting the funky physics to work on disciplined computer networks is a whole new headache.
Computer Science
Source: ICT Results
Posted on: Monday, Apr 28, 2008, 9:23am
Rating: | Views: 1295 | Comments: 0
Source: ICT Results
Posted on: Monday, Apr 28, 2008, 9:23am
Rating: | Views: 1295 | Comments: 0
Raindrops on roses
Behind the natural beauty of a rosebud covered in dew drops lies a decades-old mystery: why don't the tiny droplets fall off, even when the flower is turned upside down? Now researchers have unpicked the secrets of the rose's trick, and replicate it in a man-made material.
Behind the natural beauty of a rosebud covered in dew drops lies a decades-old mystery: why don't the tiny droplets fall off, even when the flower is turned upside down? Now researchers have unpicked the secrets of the rose's trick, and replicate it in a man-made material.
Researchers discover theoretical model to predict how solid granular materials flow
We understand how water flows. We understand how honey flows. We even understand how elastic bands deform. But granular flows are complicated and hard to understand.
We understand how water flows. We understand how honey flows. We even understand how elastic bands deform. But granular flows are complicated and hard to understand.
Physics
Source: EurekAlert
Posted on: Friday, Apr 25, 2008, 12:09pm
Rating: | Views: 1175 | Comments: 0
Source: EurekAlert
Posted on: Friday, Apr 25, 2008, 12:09pm
Rating: | Views: 1175 | Comments: 0
Northern lights glimmer with unexpected trait
An international team of scientists has detected that some of the glow of Earth’s aurora is polarized, an unexpected state for such emissions. Measurements of this newfound polarization in the Northern Lights may provide scientists with fresh insights into the composition of Earth’s upper atmosphere, the configuration of its magnetic field, and the energies of particles from the Sun
An international team of scientists has detected that some of the glow of Earth’s aurora is polarized, an unexpected state for such emissions. Measurements of this newfound polarization in the Northern Lights may provide scientists with fresh insights into the composition of Earth’s upper atmosphere, the configuration of its magnetic field, and the energies of particles from the Sun
Physics
Source: EurekAlert
Posted on: Friday, Apr 25, 2008, 11:39am
Rating: | Views: 1284 | Comments: 0
Source: EurekAlert
Posted on: Friday, Apr 25, 2008, 11:39am
Rating: | Views: 1284 | Comments: 0
Three Words That Could Overthrow Physics: “What Is Magnetism?”
The standard model still doesn't describe magnets' spooky action at a distance.
The standard model still doesn't describe magnets' spooky action at a distance.
Physics
Source: Discover Magazine
Posted on: Friday, Apr 25, 2008, 9:12am
Rating: | Views: 1469 | Comments: 0
Source: Discover Magazine
Posted on: Friday, Apr 25, 2008, 9:12am
Rating: | Views: 1469 | Comments: 0
Princeton scientists discover exotic quantum state of matter
A team of scientists from Princeton University has found that one of the most intriguing phenomena in condensed-matter physics -- known as the quantum Hall effect -- can occur in nature in a way that no one has ever before seen.
A team of scientists from Princeton University has found that one of the most intriguing phenomena in condensed-matter physics -- known as the quantum Hall effect -- can occur in nature in a way that no one has ever before seen.
Physics
Source: EurekAlert
Posted on: Thursday, Apr 24, 2008, 1:30pm
Rating: | Views: 1184 | Comments: 0
Source: EurekAlert
Posted on: Thursday, Apr 24, 2008, 1:30pm
Rating: | Views: 1184 | Comments: 0
The spring in your step is more than just a good mood
Scientists using a bionic boot found that during walking, the ankle does about three times the work for the same amount of energy compared to isolated muscles---in other words, the spring in your step is very real and helps us move efficiently.
Scientists using a bionic boot found that during walking, the ankle does about three times the work for the same amount of energy compared to isolated muscles---in other words, the spring in your step is very real and helps us move efficiently.
Physics
Source: EurekAlert
Posted on: Wednesday, Apr 23, 2008, 4:44pm
Rating: | Views: 1900 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 23, 2008, 4:44pm
Rating: | Views: 1900 | Comments: 0
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