Physics

Physicists Control X-Ray Beams With Laser Light

By changing the material medium through which x-rays pass, physicists at Lawrence Berkeley National Laboratory have used laser light to control x-ray beams. As a new generation of powerful light sources comes online, intense x-ray beams may be able to cont ...

Article - News Staff - Apr 29 2010 - 4:02pm

It From Bit- Entropic Gravity For Pedestrians

Two and a half months since Erik Verlinde submitted his entropic gravity paper, and all of physics and cosmology has turned into entropy. Well, I am exaggerating a bit, and perhaps more than just a bit. Yet, fact is that within two weeks of Erik's pu ...

Article - Johannes Koelman - Jun 11 2011 - 9:01pm

Surfer Dude's Theory Of Everything Refuted, Mathematician Says

The "exceptionally simple theory of everything," proposed by physicist Antony Garrett Lisi in 2007 does not hold water, according to a particle physicist and mathematician writing in Communications in Mathematical Physics. In November of 2007, Li ...

Article - News Staff - Mar 26 2010 - 12:38pm

Black Holes Through Outer Space: New 3 Part Series Debuts This Week

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Blog Post - Marshall Barnes - Mar 30 2010 - 5:43pm

World's Smallest Superconductor Discovered

Scientists have discovered the world's smallest superconductor, a sheet of four pairs of (BETS)2GaCl4 molecules less than one nanometer wide. Their new Nature Nanotechnology study provides the first evidence that nanoscale molecular superconducting wi ...

Article - News Staff - Sep 8 2010 - 7:06pm

Shut Down The LHC? I'd Rather Not Hurt A Fly

So how dangerous is the Large Hadron Collider? How likely is it that when operated at maximum energy the LHC will create a black hole and wipe out earth? Eric Johnson, assistant professor of law at the University of North Dakota and author of the report Th ...

Article - Johannes Koelman - Mar 29 2010 - 11:23pm

7 TeV Collisions: LHC Is ON!

We are on. This afternoon just after 1PM the LHC beams have started to produce proton-proton collisions in the heart of the experiments, at the never-before achieved energy of 7 TeV. It was a long journey to get here-the project is twenty years old- but th ...

Article - Tommaso Dorigo - Mar 31 2010 - 12:17am

Birefringence and the polarized light

  Birefringence and the polarized light 1. Definition ...

Blog Post - Mei Fang - Jul 1 2010 - 5:00am

A Problem in Statics

The formulation of a fun physics problem with practical-and pleasant- applications occurred to me yesterday. I am currently spending a week in Madrid with my family, and we have chosen a very nice hotel in the suburbs, sacrificing travel time to the center ...

Blog Post - Tommaso Dorigo - Apr 1 2010 - 3:05pm

CDF Discovers The Graviton!

The CDF Collaboration blessed yesterday afternoon the results of a search for massive Gravitons decaying into pairs of Z bosons. And it is a startling new result! Usually after a blessing (which is the result of a collaboration-wide presentation when the a ...

Article - Tommaso Dorigo - Apr 3 2010 - 6:25am