Posts Tagged ‘light’
Science & Technology - Sep 2, 2009 14:59 - 0 Comments
Honey, who shrunk the laser light?
A bright point of light from a single plasmon laser emanates from the optical setup used by UC Berkeley researchers. (Courtesy: Xiang Zhang Lab/UC Berkeley)
Health & Medicine - Aug 20, 2009 4:00 - 0 Comments
Light’s a total turnoff for protein
A photoactivatable protein enables control of cell movement in living cells. Activation of Rac in the red circle (left) led to localized cell protrusion and translocation of the kinase PAK to the cell edge (right hand image, Pak in red). (Credit: Yi Wu)
Earth & Environment - Jul 14, 2009 9:30 - 0 Comments
Ancient ferns bum a ride off giant trees
Hymenophyllum jamesonii, an epiphytic fern of neotropical rain forests, has berry-like clusters of sporangia where reproductive spores are produced. (Courtesy: Eric Schuettpelz)
Science & Technology - Jul 13, 2009 15:28 - 0 Comments
Running nanodevices on ‘repulsive’ light
Tang’s team show how interacting lightwaves can be used to control devices on a silicon chip. (Photo: Hong Tang/Yale University)
Science & Technology - Jul 6, 2009 12:49 - 0 Comments
Applying math to color our world
A. Kimball Romney’s recent research led to a mathematical visualization of cone photo receptor sensitivities. His work could advance efforts to display uniform, high-quality color in a variety of fields. (Credit: Daniel A. Anderson)
Science & Technology - May 26, 2009 16:02 - 0 Comments
Zeroing in on supernova distance
Remnant of a supernova. (Credit: NASA)
Science & Technology - Apr 29, 2009 14:46 - 0 Comments
Say cheese! Scrambled light’s super-crisp shots
PRINCETON (US)—In photography, there are always trade-offs—zoom in for detail or go wide to capture the scene. An imaging method developed by Princeton University researchers could lead to lenses that reveal all parts of a panorama at once in high detail. The technique is designed to enhance resolution using normal light, allowing scientists to build microscopes and devices capable of so-called super-resolution. (more…)
Science & Technology - Mar 16, 2009 10:43 - 0 Comments
The photon force is with us—and it’s driving our nanomachines
YALE (US)—Science fiction writers have long envisioned sailing a spacecraft by the optical force of the sun’s light. But, the forces of sunlight are too weak to fill even the oversized sails that have been tried. Now a team led by researchers at the Yale School of Engineering & Applied Science has shown that the force of light indeed can be harnessed to drive machines—when the process is scaled to nano-proportions. (more…)
