Guglielmo Marconi, Italian physicist and inventor and pioneer of wireless telegraphy, 1906.
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AR924662 
'Sholes' Type Writer', 1872.
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AR924656 
Mobile radio station used by Marconi, 1900.
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AR924648 
Replica of Marconi's first transmitter used in his early experiments in Italy, 1894.
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AR924636 
'A General Display of Arts and Sciences', 1790. Artist: Reynolds Grignion
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AR924606 
Benjamin Franklin, American scientist, inventor and statesman, late 18th century.
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AR924489 
Claude Chappe demonstrating his optical telegraph (semaphore) system in 1793 (c1870).
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AR924451 
Sectional view of a telegraph tower for Claude Chappe's semaphore, 1792, (c1870).
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AR924447 
Justus von Liebig, German chemist, c1860.
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AR924337 
Method of measuring angles with a cross-staff, 1636.
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AR924329 
Christopher Scheiner's illustration of his idea of the surface of the sun, 1635.
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AR924296 
Title page of The Description and Use of the Sector by Edmund Gunter, 1636.
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AR924281 
Thomas Alva Edison, American inventor, c1879.
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AR924070 
Thomas Alva Edison, American inventor, 1924.
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AR924067 
Thomas Alva Edison, American inventor, c1906.
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AR924063 
Leclanche wet cell, an early storage battery, 20th century.
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AR924059 
Leclanche wet cell, an early storage battery, 1896.
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AR924057 
Leclanche wet cell, an early storage battery, 1887.
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AR924053 
Voltaic battery (pile), 1887.
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AR924031 
Jules Verne, French adventure and science fiction author, late 19th century.
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AR923988 
Jules Verne, French adventure and science fiction author, 1888.
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AR923985 
Colt Frontier revolver, invented by Samuel Colt (1814-62), c1850.
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AR923961 
Colt Frontier revolver, invented by Samuel Colt (1814-62), c1890.
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AR923956 
First lockstitch sewing machine, invented by Elias Howe, c19th century.
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AR923910 
Jean Bernard Leon Foucault (1819-1868), French physicist, 19th century.
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AR923895 
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