large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_15
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
Ordinary atoms could be made to carry an electric charge and by comparing their behavior with those of electrons, some of the properties of electrons could be determined. ORDINARY ATOMS COULD BE MADE TO CARRY AN ELECTRIC CHARGE AND BY COMPARING THEIR BEHAVIOUR WITH THOSE OF ELECTRONS SOME OF THE PROPERTIES OF ELECTRONS COULD BE DETERMINED
ically charged particles was confirmed by another English physicist, Joseph John Thomson (1856-1940). In 1897 he showed that the cathode rays could also be made to take a curved path in the presence of electrically charged objects. The particles making up the cathode rays were charged with negative electricity, judging from the direction in which they were made to curve by electrically charged objects. Thomson had no hesitation in maintaining that these particles carried the units of electricity that Faraday’s work had hinted at. Eventually, Stoney’s name for the units of electricity was applied to the particles that carried those units. The cathode rays, in other words, were considered to be made up of streams of electrons and Thomson is usually given credit for having discovered the electron. The extent to which cathode rays curved in the presence of a magnet or electrically charged objects depended on the size of the electric charge on the electrons and on the mass of the electrons. ONFIRMED BY ANOTHER ENGLISH PHYSICIST JOSEPH JOHN THOMPSON EIGHTEEN FIFTY SIX NINETEEN FORTY IN EIGHTEEN NINETY SEVEN HE SHOWED THAT THE CATHODE RAYS COULD ALSO BE MADE TO TAKE A CURVED PATH IN THE PRESENCE OF ELECTRICALLY CHARGED OBJECTS THE PARTICLES MAKING UP THE CATHODE RAYS WERE CHARGED WITH NEGATIVE ELECTRICITY JUDGING FROM THE DIRECTION IN WHICH THEY WERE MADE TO CURVE BY ELECTRICALLY CHARGED OBJECTS THOMPSON HAD NO HESITATION IN MAINTAINING THAT THESE PARTICLES CARRIED THE UNITS OF ELECTRICITY THAT FARADAY'S WORK HAD HINTED AT EVENTUALLY STONY'S NAME FOR THE UNITS OF ELECTRICITY WAS APPLIED TO THE PARTICLES THAT CARRIED THOSE UNITS THE CATHODE RAYS IN OTHER WORDS WERE CONSIDERED TO BE MADE UP OF STREAMS OF ELECTRONS AND THOMSON IS USUALLY GIVEN A CREDIT FOR HAVING DISCOVERED THE ELECTRON THE EXTENT TO WHICH CATHODE RAYS CURVED IN THE PRESENCE OF A MAGNET OR ELECTRICALLY CHARGED OBJECTS DEPENDED ON THE SIZE OF THE ELECTRIC CHARGE ON THE ELECTRONS AND ON THE MASS OF THE ELECTRONS
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