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#Mon Aug 09 12:00:46 CEST 2010
Text__2ARLcKOcEd-WfYQ0GneCwQ_title=Puluj's Electric Radiometer
Text__2ARLcKOcEd-WfYQ0GneCwQ_text=<p>In 1875 William Crookes constructs a rotor with vanes which is set in rotation not only by light, but also by cathode rays. Puluj experiments with various arrangements of the electrodes, including one with a rotor with vanes mounted on the head of the cathode.</p>