Archive: 06/29/2011

NASA aircraft to study air pollution

(PhysOrg.com) -- Two NASA research aircraft will fly over the Baltimore-Washington area of northeastern Maryland through July as part of a mission to enhance the measurement of ground-level air quality from space.

Jun 29, 2011 not rated yet 0

The math of the Rubik's cube

Last August, 30 years after the Rubik’s cube first appeared, an international team of researchers proved that no matter how scrambled a cube got, it could be solved in no more than 20 moves. Although ...

Jun 29, 2011 3.9 / 5 (18) 43 | with audio podcast