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Controlling the interaction between light and matter PhysOrg Share    
A new experiment gives physicists the ability to observe the superposition of states in a superconducting artificial atom. Read the associated Physical Review Letters article. More
Making rain with lasers PhysicsWorld Share
Firing extremely powerful laser pulses through humid air can stimulate the formation of clouds, according to a team of European scientists. They say that the effectiveness of this method is much easier to gauge than traditional cloud-seeding techniques and that it could provide a practical means of triggering rainfall. More Proposed test of weak equivalence principle could be most accurate yet PhysOrg Share
The weak equivalence principle (WEP) -- which states that all bodies fall at the same rate in a gravitational field -- is one of the key postulates of general relativity. Tests have shown that the WEP is accurate to within one part in 10 trillion. However, a violation of the WEP is suggested by most theories that attempt to unify gravity with the other forces, which is one of the biggest challenges in physics today. Looking for new ways to test the WEP to even greater accuracy and perhaps detect a violation, astrophysicists at the Harvard-Smithsonian Center for Astrophysics have designed a new WEP test to be conducted during free fall in a rocket flight. More
Chu announces more than $200 million for solar and water power technologies Today's Energy Solutions Share
On the 40th Anniversary of Earth Day, U.S. Department of Energy Secretary Steven Chu announced that the department will invest more than $200 million over five years to expand and accelerate the development, commercialization, and use of solar and water power technologies throughout the United States. This funding underscores the Administration's commitment to foster a robust clean-energy sector in the United States -- that will create American manufacturing jobs and a workforce with the required technical training to speed the implementation of cutting-edge technologies. More The math behind the physics behind the universe Discover Magazine Share
Shing-Tung Yau is a force of nature. He is best known for conceiving the math behind string theory -- which holds that, at the deepest level of reality, our universe is built out of 10-dimensional, subatomic vibrating strings. But Yau's genius runs much deeper and wider: He has also spawned the modern synergy between geometry and physics, championed unprecedented teamwork in mathematics, and helped foster an intellectual rebirth in China. More
Combining MRI with atomic microscopy, researchers get 3-D images of viruses, cells Popular Science Share
Magnetic resonance imaging (MRI) is a crucial diagnostic tool and an all-around cool technology that creates three-dimensional views of living tissues without being invasive or harming living tissues. But MRI is also limited; while telescopes see further and further into the cosmos and microscopes see smaller and smaller bodies, MRI can only go so small. But now, by blending atomic force microscopy with MRI's 3-D capabilities, MIT researchers are making a 3-D microscope 100 times more powerful than hospital MRI machines. More Can world's largest laser zap Earth's energy woes? CNN Share
Scientists at the National Ignition Facility are trying to use the world's largest laser array to set off a nuclear reaction so intense that it will make a star bloom on the surface of the Earth. More
Banking on safer quantum communication Cosmos Share
Banks, the military and digital media distributors could benefit from a novel method of secure online communication that uses quantum encryption but can also ensure the message is only received by the right person, in the right place. More Star physicists trade barbs over cosmological model Scientific American Share
A tony social club in midtown Manhattan is not the place one might expect to find a verbal sparring match between famous physicists. But that was the case April 23 at the Harmonie Club, when Alan Guth and David Gross had a feisty off-the-cuff debate about Guth's model for the dawn of the universe. Perhaps in keeping with their genteel surroundings, the two kept their jabs mostly playful, but a few may have stung nonetheless. More |
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