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Charles A. Spencer : ウィキペディア英語版 | Charles A. Spencer Charles A Spencer was an American scientific pioneer and inventor,〔(【引用サイトリンク】title=Memoir of Charles A. Spencer )〕 who is widely believed to have developed the first American-made achromatic objective microscope.〔(【引用サイトリンク】 publisher = Smithsonian Institution )〕 He was born in 1813 in Madison County, NY 〔 and died in 1881. == Microscopy == Spencer’s first microscopes were available for purchase in 1838.〔 Previous to Spencer’s invention, European manufacturers held a monopoly on research-quality microscopic equipment.〔 At least one of Spencer’s microscopes survives and is currently held by the Smithsonian Institution.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Charles A. Spencer」の詳細全文を読む
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