Joseph Wilson Swan (1828-1914) British physicist and chemist. Photography (bromide paper): Incandescent light bulb. Here a Royal Society Conversazione, 8 May 1889, demonstrating that metal ring wound with coil of wire rotates in Earth's magnetic field when small current applied. Engraving
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Creative#:
TOP09100294
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達志影像
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RM
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須由TPG 完整授權
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