News tagged with radioactive

Physicists control quantum tunneling with light for the first time

Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave nature of particles, this ...

Physics / Quantum Physics

created Apr 05, 2012 | popularity 4.9 / 5 (15) | comments 11 | with audio podcast

Researchers say galaxy may swarm with 'nomad planets'

(PhysOrg.com) -- Our galaxy may be awash in homeless planets, wandering through space instead of orbiting a star.

Space & Earth / Astronomy

created Feb 23, 2012 | popularity 4.3 / 5 (23) | comments 31 | with audio podcast

Chemists find new material to remove radioactive gas from spent nuclear fuel

(PhysOrg.com) -- Research by a team of Sandia chemists could impact worldwide efforts to produce clean, safe nuclear energy and reduce radioactive waste.

Chemistry / Materials Science

created Jan 24, 2012 | popularity 4.5 / 5 (19) | comments 13 | with audio podcast

Neanderthals died out earlier than originally believed

(PhysOrg.com) -- According to a newly released report in The Proceedings of the National Academy of Sciences, a newly refined method of radiocarbon dating has found that Neanderthals died off much earlier than o ...

Other Sciences / Archaeology & Fossils

created May 10, 2011 | popularity 4.5 / 5 (14) | comments 24 | with audio podcast report

Antihelium-4: Physicists nab new record for heaviest antimatter

(PhysOrg.com) -- Members of the international STAR collaboration at the Relativistic Heavy Ion Collider -- a particle accelerator used to recreate and study conditions of the early universe at the U.S. Department ...

Physics / General Physics

created Apr 24, 2011 | popularity 4.7 / 5 (23) | comments 11 | with audio podcast

First measurement of magnetic field in Earth's core

(PhysOrg.com) -- A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth's core, 1,800 miles underground.

Space & Earth / Earth Sciences

created Dec 16, 2010 | popularity 4.9 / 5 (19) | comments 10 | with audio podcast

IceCube neutrino observatory nears completion

In December 2010, IceCube -- the world's first kilometer-scale neutrino observatory, which is located beneath the Antarctic ice -- will finally be completed after two decades of planning. In an article in ...

Physics / General Physics

created Aug 31, 2010 | popularity 4.7 / 5 (18) | comments 9 | with audio podcast

Radioactive decay rates vary with the sun's rotation: research

Radioactive decay rates, thought to be unique physical constants and counted on in such fields as medicine and anthropology, may be more variable than once thought.

Physics / General Physics

created Aug 31, 2010 | popularity 4.5 / 5 (41) | comments 40 | with audio podcast

Incredible shrinking moon is revealed by the Lunar Reconnaissance Orbiter

The Lunar Reconnaissance Orbiter is revealing previously undetected landforms that indicate the moon is shrinking. The findings are reported in a paper, "Evidence of Recent Thrust Faulting on the Moon Revealed ...

Space & Earth / Space Exploration

created Aug 19, 2010 | popularity 4.3 / 5 (18) | comments 4 | with audio podcast

Silver tells a volatile story of Earth's origin: Water was present during its birth

Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled beginning 4.568 billion years ago. The new ...

Space & Earth / Earth Sciences

created May 13, 2010 | popularity 4.1 / 5 (19) | comments 5 | with audio podcast

Radioactive Gold Nanoparticles Destroy Prostate Tumors, Leaving Healthy Tissue Untouched

(PhysOrg.com) -- One of the promises of nanoparticles as delivery agents for cancer therapeutics is that they will attack tumors while sparing healthy tissue from the damage normally associated with today's anticancer therapies. ...

Nanotechnology / Bio & Medicine

created Apr 21, 2010 | popularity 5 / 5 (11) | comments 3 | with audio podcast

Research concludes there is no 'simple theory of everything' inside the enigmatic E8

The "exceptionally simple theory of everything," proposed by a surfing physicist in 2007, does not hold water, says Emory University mathematician Skip Garibaldi.

Physics / General Physics

created Mar 26, 2010 | popularity 4.6 / 5 (31) | comments 19 | with audio podcast

Borexino experiment detects geo-neutrinos

(PhysOrg.com) -- The Borexino collaboration of about 80 scientists from six countries, who have been working with a detector buried 1.5 km beneath the Gran Sasso mountain near l'Aquila in Italy have detected ...

Physics / General Physics

created Mar 16, 2010 | popularity 4.4 / 5 (15) | comments 3 | with audio podcast report

New material traps radioactive ions using 'Venus flytrap' method

(PhysOrg.com) -- Like a Venus flytrap, a newly discovered chemical material is a picky eater -- it won't snap its jaws shut for just anything. Instead of flies, however, its favorite food is radioactive nuclear ...

Chemistry / Other

created Feb 26, 2010 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Researchers recalculate age of Solar System

(PhysOrg.com) -- Lead-lead (Pb-Pb) dating is among the most widely used radiometric dating techniques to determine the age of really old things, such as the age of the Earth or the Solar System. However, recent ...

Space & Earth / Space Exploration

created Jan 04, 2010 | popularity 4.6 / 5 (13) | comments 2 | with audio podcast