Show speed of light Is found faster by eleven miles LONDON eng englight light travels it 11 miles a second faster aster than th a n was hitherto believed dr louis essen ot of the london national physical laboratory has just confirmed his theory the new figure Is miles a second instead of the miles postulated by dr albert L michelson Ml chelson in the united states in 1935 dr essen reported that carl 1 I aslakson of the united states coast and geodetic survey had arrived at the same result using radar measurements ure ments dr michelson chelson Ml used a tube a mile long dr essen one of seven inches through it he impelled a radio wave it is generally assumed radio waves and light waves travel at the same speed and reflected it backward and forward until he produced an electrical resonance that could be measured with a high degree of accuracy better than one part in a million the new figure will become a physical constant tn in many calculations in radio radar and nuclear physics research |