The ALICE Collaboration
is building a dedicated heavy-ion detector to exploit the unique physics potential of nucleus-nucleus interactions at LHC
energies. The aim is to study the physics of strongly interacting matter at extreme energy densities, where the formation of a new phase of matter, the quark-gluon plasma, is expected. This website aims both at introducing non-initiates to the field of physics covered by ALICE and at providing regular information
on the evolution of the experiment, with detailed reports of its results and analysis.
posted by netbros
on Sep 18, 2008 -
is a unique search engine for science videos focusing on Physics, Chemistry, and Space. For example, things
to do with sulfur hexafluoride
. Still growing, the editors are presently indexing other scientific fields of study including Geology, Psychology, Robotics and Computers. Ever wonder why things go bang
posted by netbros
on Aug 7, 2008 -
Anything but clear
. It is well known that panes of stained glass in old European churches are thicker at the bottom because glass is a slow-moving liquid that flows downward over centuries.
Well known, yes, but long known to be wrong
. Scientists still disagree about the nature of glass, and researchers continue to try to understand its dual personality
. [more inside]
posted by amyms
on Jul 29, 2008 -
"This is a story of how the impossible became possible. How, for centuries, scientists were absolutely sure that solids (as well as decorative patterns like tiling and quilts) could only have certain symmetries - such as square, hexagonal and triangular - and that most symmetries, including five-fold symmetry in the plane and icosahedral symmetry in three dimensions (the symmetry of a soccer ball), were strictly forbidden. Then, about twenty years ago, a new kind of pattern, known as a "quasicrystal," was envisaged that shatters the symmetry restrictions and allows for an infinite number of new patterns and structures that had never been seen before, suggesting a whole new class of materials...."
Physicist Paul J. Steinhardt delivers a fascinating lecture
(WMV) on tilings
. However, it turns out science was beaten to the punch: a recent paper
Islamic architecture developed similar tilings centuries earlier.
posted by parudox
on Mar 18, 2007 -
Physics for Future Presidents
is a class taught at UC Berkeley by Physics professor Richard Muller. It's a class specifically for non-physics majors and teaches the real world results of the sometimes impenetrable math involved in university physics. After every lecture, you should come away with the feeling that what was just covered is important for every world leader to know.
I just sat through the entire hour and 13 minute nukes
lecture and was riveted.
posted by quite unimportant
on Nov 7, 2006 -
Until now scientists have teleported similar objects such as light or single atoms over short distances from one spot to another in a split second.
But Professor Eugene Polzik and his team at the Niels Bohr Institute at Copenhagen University in Denmark have made a breakthrough by using both light and matter.
A more technical explanation.
posted by empath
on Oct 5, 2006 -
- "The project aims to produce a simple, vivid and up-to-date introduction to modern physics, with emphasis on the fundamental ideas of motion. 'Simple' means that concepts are stressed more than formalism; 'vivid' means that the reader is continuously challenged; 'up-to-date' means that modern research and ideas about unification are included
posted by Gyan
on Aug 17, 2006 -