Was a metamaterial lurking in the primordial universe?
Physics World Share
A new paper in PRL argues that the vacuum should behave as a metamaterial at high magnetic fields. Such magnetic fields were probably present in the early universe, and therefore he suggests that it may be possible to test the prediction by observing the cosmic microwave background radiation – a relic of the early universe that can be observed today. Read the associated Physical Review Letters abstract. More
Black hole radiation could provide insight into quantum gravity
The Register Share
If Hawking radiation from an evaporating black hole is ever observed, it could provide a way to test loop quantum gravity, one of the theories proposed as a way to unite general relativity with quantum mechanics. Read the associated Physical Review Letters abstract. More
Graphene nanoribbons get super computerized
IEEE Spectrum Share
About a year and a half ago, researchers devised a method for growing, from the bottom up, ribbons of graphene only a few nanometers wide. Since then, researchers around the world have started to examine the material, including some who have focused one of the world's most powerful supercomputers on it to uncover its properties. Read the associated Physical Review Letters abstract. More
New particle discovered at Large Hadron Collider
NTD Television Share
A new particle has been observed by scientists analyzing data from the ATLAS experiment at CERN's Large Hadron Collider. The particle - the Chi-b(3P) - is a boson made up of a beauty quark and its antiquark. More
"Time cloak" created; Can make events disappear
National Geographic Share
Einstein's theories of relativity suggest that gravity can cause time to slow down. Now scientists have demonstrated a way to stop time altogether - or at least, to give the appearance of time stopping by bending light to create a hole in time. The new research builds on recent demonstrations of "invisibility cloaks" that can make objects seem to disappear by bending waves of visible light. More
Hawking, 70: 'Glorious time to be alive'
British physicist Stephen Hawking said he was not well enough to attend his 70th birthday celebration and made a recorded speech instead. Hawking was forced to cancel his appearance Sunday after failing to recover from an infection. His pre-recorded speech reflected on his life. Hawking called it a "glorious time to be alive" and said he was happy to have made a "small contribution" to our understanding of the universe," The Daily Telegraph reported.
In a squeeze
Bruce Banner isn't the only scientist who could crush you with one mighty squeeze. These days, the Hulk's superhuman strength is matched by researchers who squish all kinds of stuff in superscience experiments. The goal isn't to save the world from baddies, but to explore new frontiers in the nature of matter. Read the associated APS Physics Synopsis. Read the associated Physical Review B abstract. More