News tagged with blackbody radiation
Breaking the Planck's law, at the nanoscale
(PhysOrg.com) -- A well-established physical law describes the transfer of heat between two objects, but some physicists have long predicted that the law should break down when the objects are very close together. ...
Jul 29, 2009 |
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Search results for blackbody radiation
Toward a global microwave standard
Much of what is known about decadal climate change – and much of what appears on the evening weather forecast as well – comes from satellite-based remote sensing of microwave radiation at different ...
Space & Earth / Earth Sciences
Feb 06, 2012 |
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Shining a light on the elusive 'blackbody' of energy research
A designer metamaterial has shown it can engineer emitted "blackbody" radiation with an efficiency beyond the natural limits imposed by the material's temperature, a team of researchers led by Boston College ...
Jul 22, 2011 |
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Physicists calculate how to make atomic clocks super-accurate
(PhysOrg.com) -- When it comes to atomic clocks, every second counts. In fact, according to Marianna Safronova, every quintillionth of a second counts.
Jun 02, 2011 |
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New calculations on blackbody energy set the stage for clocks with unprecedented accuracy
(PhysOrg.com) -- A team of physicists from the United States and Russia announced today that it has developed a means for computing, with unprecedented accuracy, a tiny, temperature-dependent source of error in atomic clocks. ...
May 09, 2011 |
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Magnetic fields on O-Class stars
The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect is the splitting of spectral lines into two due to the magnetic field's effect on the ...
Dec 20, 2010 |
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Sunlight Trap Could Lead to New Generation of Solar Devices
In the Greek legend of Dionysius' ear, Dionysius made a cave shaped like an ellipse in order to hear the words whispered by a prisoner in one of the foci of the cave. Some science museums today feature a similar ...
Technology / Energy & Green Tech
Jun 11, 2009 |
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A Test of the Copernican Principle
The Copernican principle states that the Earth is not the center of the universe, and that, as observers, we don’t occupy a special place. First stated by Copernicus in the 16th century, today the idea is ...
May 22, 2008 |
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Laser-trapping of rare element gets unexpected assist
Argonne researchers have successfully laser-cooled and trapped atoms of radium — the first time this rare element has been captured in a magneto-optical trap — with an assist from an unexpected source.
May 01, 2007 |
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Echo of the Big Bang wins US pair Nobel Prize (Update 4)
The Nobel Prize in Physics goes to John C. Mather and George F. Smoot "for their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation".
Oct 03, 2006 |
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List of search results for blackbody radiation
