Physics and Astronomy News Archive: April 2007
NASA's twin Solar Terrestrial Relations Observatory (STEREO) spacecraft have made the first three-dimensional images of the sun.
NASA Spacecraft Make First 3-D Images of Sun
Source: NASA/JPL Posted: 4/29/07
How photosynthesis achieves this near instantaneous energy transfer is a long-standing mystery that may have finally been solved. Answer lies in quantum mechanical effects.
Quantum Secrets of Photosynthesis Revealed
Source: LBL Posted: 4/29/07
An electrical circuit that should carry enough power to produce the long-sought goal of controlled high-yield nuclear fusion and, equally important, do it every 10 seconds, has undergone extensive preliminary experiments and computer simulations at Sandia National Laboratories’ Z machine facility.
Rapid-fire pulse brings Sandia Z method closer to goal of high-yield fusion reactor
Source: Sandia Posted: 4/29/07
The next 11-year cycle of solar storms will most likely start next March and peak in late 2011 or mid-2012—up to a year later than expected—according to a forecast issued by the NOAA Space Environment Center.
Next Solar Storm Cycle Will Likely Start March 2008
Source: NOAA Posted: 4/29/07
Astronomers have laid down the cosmic equivalent of yellow 'caution' tape around super hot stars, marking the zones where cooler stars are in danger of having their developing planets blasted away.
Astronomers Map Out Planetary Danger Zone
Source: NASA/JPL Posted: 4/19/07
The new 3D solar cells capture photons from sunlight using an array of miniature 'tower' structures that resemble high-rise buildings in a city street grid.
Nano-Manhattan: Improved 3D Solar Cells
Source: GATech Posted: 4/19/07
An international team of researchers has observed the quantum mechanical tunnelling effect for the first time.
Electrons Caught in the Act of Tunnelling
Source: MaxPlank Society Posted: 4/19/07
Physicists can rest easy--the Standard Model of Particle Physics is still in effect. New experiment confirms the model's prediction that there are only three types of neutrinos.
Experiment confirms famous physics model
Source: MIT Posted: 4/19/07
Using a laser-cooling technique that could one day allow scientists to observe quantum behavior in large objects, MIT researchers have cooled a coin-sized object to within one degree of absolute zero.
Laser-cooling brings large object near absolute zero
Source: MIT Posted: 4/7/07
High-resolution images that reveal unexpected details of the Earth's internal structure are among the results reported by MIT and Purdue scientists.
High-resolution images herald new era in Earth sciences
Source: MIT Posted: 4/7/07
Nanometer-scale generator that produces continuous direct-current electricity by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or blood flow was demonstrated.
Nanometer-Scale Generator Demonstrated
Source: GaTech Posted: 4/7/07
Johns Hopkins Medicine engineers announce plastic, air- and light-driven device more precise than human hand.
Air & Light-Driven Robotic Device More Precise Than Human Hand
Source: Johns Hopkins Posted: 4/7/07