News tagged with light field
Do black holes help stars form?
(PhysOrg.com) -- The center of just about every galaxy is thought to host a black hole, some with masses of thousands of millions of Suns and consequently strong gravitational pulls that disrupt material around ...
Feb 03, 2012 |
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Physics team calculates that graphene disks could be complete optical absorbers
(PhysOrg.com) -- In optical devices designed and used to collect light, there has always been a loss of light due to reflection, now, new research by a team of physicists from Spain and England has found, ...
Feb 01, 2012 |
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Fruit flies watch the sky to stay on course
Insects, equipped with complex compound eyes, can maintain a constant heading in their travels, some of them for thousands of miles. New research demonstrates that fruit flies keep their bearings by using ...
Jan 17, 2012 |
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Gadget Watch: Control a PC with body motions
(AP) -- Don't trash your keyboard and mouse just yet. But three companies at the International Consumer Electronics Show demonstrated depth-sensing cameras that let you to control your computer by moving ...
Jan 13, 2012 |
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Rare ultra-blue stars found in neighboring galaxy's hub
(PhysOrg.com) -- Peering deep inside the hub of the neighboring Andromeda galaxy, NASA's Hubble Space Telescope has uncovered a large, rare population of hot, bright stars.
Jan 11, 2012 |
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Light control technique could lead to tunable lighting and displays
(PhysOrg.com) -- Over the past several years, organic light-emitting diodes (OLEDs) have become a popular light source due to their advantages including bright displays, wide viewing angles, and the ability ...
Jan 11, 2012 |
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Hubble pinpoints furthest protocluster of galaxies ever seen
(PhysOrg.com) -- Using the NASA/ESA Hubble Space Telescope, astronomers have uncovered a cluster of galaxies in the initial stages of development, making it the most distant such grouping ever observed in ...
Jan 10, 2012 |
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A new way to measure Earth's magnetosphere
US researchers have demonstrated the potential use of a new way to measure properties of Earth's magnetosphere, the magnetic bubble that surrounds the planet.
Space & Earth / Earth Sciences
Jan 04, 2012 |
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New technique makes it easier to etch semiconductors
Creating semiconductor structures for high-end optoelectronic devices just got easier, thanks to University of Illinois researchers.
Dec 22, 2011 |
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Young star rebels against its parent cloud
Despite the celestial colours of this picture, there is nothing peaceful about star forming region Sh 2-106, or S106 for short. A devilish young star, named S106 IR, lies in it and ejects material at high ...
Dec 13, 2011 |
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Earth's outer core deprived of oxygen: study
The composition of the Earth's core remains a mystery. Scientists know that the liquid outer core consists mainly of iron, but it is believed that small amounts of some other elements are present as well. Oxygen ...
Space & Earth / Earth Sciences
Nov 23, 2011 |
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Cosmic particle accelerators get things going
(PhysOrg.com) -- ESA's Cluster satellites have discovered that cosmic particle accelerators are more efficient than previously thought. The discovery has revealed the initial stages of acceleration for the ...
Nov 17, 2011 |
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Millisecond pulsar in spin mode
Astronomers have tracked down the first gamma-ray pulsar in a globular cluster of stars. It is around 27,000 light years away and thus also holds the distance record in this class of objects. Moreover, its ...
Nov 03, 2011 |
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Suspects in the quenching of star formation exonerated
Supermassive black holes millions to billions times the mass of our Sun lie at the heart of most, maybe all large galaxies. Some of these power brilliantly luminous, rapidly growing objects called active galactic nuclei that ...
Oct 11, 2011 |
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Space telescopes reveal secrets of turbulent black hole
(PhysOrg.com) -- A fleet of spacecraft including NASA's Hubble Space Telescope has uncovered unprecedented details in the surroundings of a supermassive black hole. Observations reveal huge bullets of gas ...
Sep 29, 2011 |
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