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1527R-012906
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1589R-02581
Rear view of a teacher looking at a blackboard
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486-348
Abraham Lincoln, 1809-1865, 16th President of the United States
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3804-407148
The School of Athens
1509-11
Raphael (1483-1520 Italian)
Fresco
Stanza della Segnatura, Palazzi Pontifici, Vatican City
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2778-411767
DRAWING OF A FLYING MACHINE WITH A MAN OPERATING IT PEN & INK Leonardo da Vinci 1452 d1519 Florentine Institut de France, Paris
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1775R-4594
Portrait of businesswoman at computer smiling
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900-4788
Flying Machine After Leonardo da Vinci Drawing
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990-2640
Albert Einstein, (1879-1955), Physicist
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1035-467
Albert Einstein, (1879 - 1955), Physicist
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1527R-015789
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255-4451
Close-up of a scientist looking through a microscope
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1527R-017845
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255-3731
Close-up of a scientist looking through a microscope
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1529-1131A
Portrait of a girl writing on a clipboard
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862-1030
Faraday in his Workshop/Laboratory
ca.1830
Artist Unknown
Watercolor
Royal Institution, London, England
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