Archive: 22/11/2012

I am SAM

Yesterday Mars Science Laboratory principal investigator John Grotzinger set the entire space science world abuzz with a tantalizing promise of "earthshaking" news on the horizon—literally "one for the history books," as ...

dateNov 22, 2012 in Space Exploration
shares0 comments 2

One material, two types of magnetism

When placed next to a bar magnet, an aluminum ball draws gently towards the magnet. In contrast, a ball made of silver moves out of the magnetic field. The mechanisms underlying these different behaviors are known as paramagnetism ...

dateNov 22, 2012 in General Physics
shares0 comments 7

1000 calibration reports . . . and counting

The U.S. Internet – and indeed any communication system that sends information by fiber-optic cable – depends critically on strong, clear signals propagating reliably through transmission lines. The principal measurement ...

dateNov 22, 2012 in General Physics
shares0 comments 0