Show One millionth Fifty-millionth of an Inch In recent s science lence nothing Is more remarkable than the refinement which has been made in instrumental measurements Dr P. P E. E Shaw recently re le- explained ined to th the Roya Royal Society an electrical micrometer which it is stated elated can be made to measure the two-millionth two of a millimeter or the millionth fifty-millionth of an inch This measurement measurement measurement meas meas- the smallest ever yet made was In connection with the movements movements movements move move- ments of a telephone diaphragm The problem was to find what movement nf of the p s a n amnA which is only just audible The measurement measurement meas meas- was effected by means of an electric current connected with the micrometer and telephone London London Standard |