Udagawa Yōan
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was a 19th-century Japanese scholar of Western studies, or " Rangaku". In 1837, he published the first volume of his , a compilation of scientific books in Dutch, which describes a wide range of scientific knowledge from the West. Most of the Dutch original material appears to be derived from William Henry's 1799 ''Elements of Experimental Chemistry''. In particular, the book contains a very detailed description of the
electric battery An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negati ...
invented by
Volta Volta may refer to: Persons * Alessandro Volta (1745–1827), Italian physicist and inventor of the electric battery, count and eponym of the volt * Giovanni Volta (1928–2012), Italian Roman Catholic bishop * Giovanni Serafino Volta (1764–184 ...
forty years earlier in 1800. The battery itself was constructed by Udagawa in 1831 and used in experiments, including medical ones, based on a belief that electricity could help cure illnesses. Udagawa's ''Science of Chemistry'' also reports for the first time in details the findings and theories of
Lavoisier Antoine-Laurent de Lavoisier ( , ; ; 26 August 17438 May 1794),
CNRS (
Image:Seimikaisou.jpg, A des­crip­tion of a
Volta Volta may refer to: Persons * Alessandro Volta (1745–1827), Italian physicist and inventor of the electric battery, count and eponym of the volt * Giovanni Volta (1928–2012), Italian Roman Catholic bishop * Giovanni Serafino Volta (1764–184 ...
battery in ''Introduction to Chemistry'' (''Seimi Kaisō''), published in 1840. Image:SeimiKaisouChemistry.jpg, Chemical experiments in ''Introduction to Chemistry'' (''Seimi Kaisō'').


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舎密開宗
PDF files of ''Seimi Kaisō'' provided by the library of Nakamura Gakuen University (Japanese) 1798 births 1846 deaths Japanese scientists Japanese naturalists Rangaku 19th-century Japanese chemists {{japan-scientist-stub