Archive for April 15th, 2007

Message from the 5th dimension: “We’re ambidexterous up here. Why are you left/right-handed?” There are lots of neat little problems that pop up when you play with models of extra dimensions. One such problem that one might not have expected is how to write down a 4D chiral theory. For simiplicity let’s play with a […]


The NASA/Stanford University Gravity Probe B (GPB) team has made its first public announcement at the 2007 American Physical Society April Meeting, and they have announced that the geodetic effect predicted by general relativity has been confirmed to within 1%. Analysis on the `frame-dragging’ effect is ongoing, complete results are expected to be announced in […]