Shells ‘n’ pebbles – the physics arXiv blog

Other highlights from the arXiv this week

If the LHC is a Mini-Time-Machine Factory, Would We Notice?

Is the evidence for dark energy secure?

Following red blood cells in a pulmonary capillary

Urban and Scientific Segregation: a Review of the Schelling-Ising Model

An Atom Laser is not monochromatic