James Clerk Maxwells great experiment; 19th CenturyBy discovering that the lines of force from a magnet travel with the speed of light Maxwell (1831-1879) established the identity of electric waves and prepared the way for wireless telegraphy. Illustration from My Magazine - the Monthly Companion of The Childrens Newspaper; 1923.
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TOP29987885
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達志影像
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RM
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