News tagged with rays
Researchers take first steps toward X-ray superfluorescence
(PhysOrg.com) -- While physicist Robert Dicke is probably most famous for his work on the cosmic microwave background (CMB) – and being "scooped" while attempting to be the first to detect it – he ...
Nov 14, 2011 |
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Bright lights, small systems: Molecular differentiation using free-electron lasers
(PhysOrg.com) -- Double-core-hole (DCH) states – in which two electrons are ejected from their positions, creating vacancies – occurring at different atomic sites are very sensitive to the chemical ...
Oct 28, 2011 |
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Proposed gamma-ray laser could emit 'nuclear light'
(PhysOrg.com) -- Building a nuclear gamma-ray laser has been a challenge for scientists for a long time, but a new proposal for such a device has overcome some of the most difficult problems. In the new study, Eugene Tkalya ...
May 02, 2011 |
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Primordial beryllium could reveal insights into the Big Bang
(PhysOrg.com) -- Some chemical elements appear much more abundantly in nature than others, which is partly due to how the elements originally formed. Scientists know that the light elements (hydrogen, deuterium, ...
Apr 21, 2011 |
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Livermorium and Flerovium join the periodic table of elements
(Phys.org) -- The International Union of Pure and Applied Chemistry (IUPAC) today officially approved new names for elements 114 and 116, the latest heavy elements to be added to the periodic table.
May 31, 2012 |
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X-ray 'echoes' map a supermassive black hole's environs
(Phys.org) -- An international team of astronomers using data from the European Space Agency's (ESA) XMM-Newton satellite has identified a long-sought X-ray "echo" that promises a new way to probe supersized ...
May 31, 2012 |
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T-ray madness: Scientists score wireless data record
(Phys.org) -- Wednesday headlines trumpeted how "Japanese researchers smash Wi-Fi records" and "Scientists show off the future of Wi-Fi." The excitement is for good reason. A team of scientists have broken ...
May 16, 2012 |
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Plant enzyme's origins traced to non-enzyme ancestors
(Phys.org) -- As plants began to transition from aquatic habitats to dry land some 500 million years ago, their needs changed. Those primitive ancestors of modern plants were ill-equipped to survive in a dry, sunlight-blasted ...
May 13, 2012 |
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Where do the highest-energy cosmic rays come from? Not from gamma-ray bursts, says IceCube study
The IceCube neutrino telescope encompasses a cubic kilometer of clear Antarctic ice under the South Pole, a volume seeded with an array of 5,160 sensitive digital optical modules (DOMs) that precisely track ...
Apr 18, 2012 |
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Polarized X-ray scattering technique reveals structure of printable electronics
(Phys.org) -- An innovative X-ray technique has given North Carolina State University researchers and their collaborators new insight into how organic polymers can be used in printable electronics such as transistors and ...
Apr 15, 2012 |
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Fermi observations of dwarf galaxies provide new insights on dark matter
(PhysOrg.com) -- There's more to the cosmos than meets the eye. About 80 percent of the matter in the universe is invisible to telescopes, yet its gravitational influence is manifest in the orbital speeds ...
Apr 02, 2012 |
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X-rays reveal how soil bacteria carry out surprising chemistry
Researchers working at the SLAC National Accelerator Laboratory have used powerful X-rays to help decipher how certain natural antibiotics defy a longstanding set of chemical rules – a mechanism that ...
Mar 04, 2012 |
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First atomic X-ray laser created
Scientists working at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have created the shortest, purest X-ray laser pulses ever achieved, fulfilling a 45-year-old prediction and ...
Jan 25, 2012 |
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'Animal embryo' fossils are actually microbes (Update)
Tiny fossils that scientists have thought for decades were the embryos of the earliest animals ever found have turned out to be the remains of much simpler microbial organisms.
Other Sciences / Archaeology & Fossils
Dec 22, 2011 |
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A new kind of metal in the deep Earth
(PhysOrg.com) -- The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New ...
Dec 19, 2011 |
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