In one of the greatest achievements in experimental science, - TopicsExpress



          

In one of the greatest achievements in experimental science, astronomers using the 64-meter Parkes telescope in Australia, the 76-meter Lovell telescope at Jodrell Bank in the UK, and the 100-meter Green Bank telescope in West Virginia have measured the rate at which the pulsars spiral inward to be just 7 millimetres each day, which is in accord with the prediction of general relativity. The achievement is breathtaking. These are spinning neutron stars orbiting around each other at a distance of a million kilometres and located 2,000 light-years from earth. Their behaviour was predicted to millimetre precision using a theory developed in 1915 by a man who wanted to understand why two lumps of stuff dropped off a leaning tower in Pisa three centuries previously hit the ground at the same time. Why Does E=mc2?: (and Why Should We Care?) Brian Cox (Author), Jeff Forshaw (Author)
Posted on: Sun, 06 Oct 2013 20:02:00 +0000

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