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(Air pressure) (vacuum) Hero (Experiment) ?
(Robert Boyle) ?
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dries "evaporates" (ee-VAP ) , .
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exhaled
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Priestley .
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lightest , lightest .
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1774 , Antoine Laurent Lavoisier (la-vwah - ZYAY, 1743-1794)
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Lavoisier ,
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(Lavoisier ) ,
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| Stanislao Cannizzaro (
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1913) . (- 55 ) ,
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, Cesar Janssen (zhahn
, 1824-1907) 1868 | Caesar Janssen
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1898 :
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1800 ,
| ,." , 1877 , , Cailletet (ka-Yuh , 1832-1913)
toreach . -183 (-297
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( Kahr, 1884-1962), ,
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lightest .
1901 , Guglielmo (Mahr-KOH-nee, 1874-1937)
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puzzling . , ,
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1902 , Kennelly (1861-1939)
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, "Kennelly-Heaviside ." 1924 ,
(1892-1965),
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(1892-1937)
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Schonbein (SHOIN-, 1799-1868)
1840 .
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(Koy , 1905-1973)
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