large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_187
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
Others, in addition to Becquerel, were soon investigating the new phenomenon. In 1898 the Polish (later French) physicist Marie Sklodowska Curie (1867 1934) showed that it was the uranium atom that was the source of the radiation, and that any compound containing the uranium atom would give off these penetrating rays. OTHERS IN ADDITION TO BECAREL WERE SOON INVESTIGATING THE NEW PHENOMENON IN EIGHTEEN NINETY EIGHT THE POLISH LATER FRENCH PHYSICIST MARIE SKWARDOWSKA CURI EIGHTEEN SIXTY SEVEN NINETEEN THIRTY FOUR SHOWED THAT IT WAS THE URANIUM ATOM THAT WAS THE SOURCE OF THE RADIATION AND THAT ANY COMPOUND CONTAINING THE URANIUM ATOM WOULD GIVE OFF THESE PENETRATING RAYS
ary light. [Illustration: _Antoine Henri Becquerel._] At once, physicists became fascinated with X rays and began searching for them everywhere. One of those involved in the search was the French physicist Antoine Henri Becquerel (1852-1908). A certain compound, potassium uranyl sulfate, glowed after being exposed to sunlight and Becquerel wondered if this glow, like the glow on the glass in Roentgen’s X-ray tube, contained X rays. [Illustration: Roentgen’s laboratory] [Illustration: _Wilhelm Roentgen and his laboratory at the University of Würzburg._] It did, but while investigating the problem in 1896, Becquerel found that the compound was giving off invisible penetrating X-ray-like radiation continually, whether it was exposed to sunlight or not. The radiation was detected because it would fog a photographic plate just as light would. What’s more, the radiation would fog the plate, even if the plate were wrapped in black paper, so that it could penetrate matter just as X rays could. D EVEN AFTER PHYSICISTS WORKED OUT THE NATURE OF X RAYS AND FOUND THEM TO BE LIGHT LIKE RADIATION MADE UP OF WAVES MUCH SHORTER THAN THOSE OF ORDINARY LIGHT AT ONCE PHYSICISTS BECAME FASCINATED WITH X RAYS AND BEGAN SEARCHING FOR THEM EVERYWHERE ONE OF THOSE INVOLVED IN THE SEARCH WAS THE FRENCH PHYSICIST ANTOINE HENRY BECAREL EIGHTEEN FIFTY TWO NINETEEN O EIGHT A CERTAIN COMPOUND POTASSIUM URANEL SULPHATE GLOWED AFTER BEING EXPOSED TO SUNLIGHT AND BECHCARRAL WONDERED IF THIS GLOW LIKE THE GLOW ON THE GLASS IN RENTGEN'S X RAY TUBE CONTAINED X RAYS IT DID BUT WHILE INVESTIGATING THE PROBLEM IN EIGHTEEN NINETY SIX BECKCAREL FOUND THAT THE COMPOUND WAS GIVING OFF INVISIBLE PENETRATING X RAY LIKE RADIATION CONTINUALLY WHETHER IT WAS EXPOSED TO SUNLIGHT OR NOT THE RADIATION WAS DETECTED BECAUSE IT WOULD FOG A PHOTOGRAPHIC PLATE JUST AS LIGHT WOOD WHAT'S MORE THE RADIATION WOULD FOG THE PLATE EVEN IF THE PLATE WERE WRAPPED IN BLACK PAPER SO THAT IT COULD PENETRATE MATTER JUST AS X RAYS COULD
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