Helmholtz, Hermann von, 31.8.1821 - 8.9.1894
Helmholtz, Hermann von, 31.8.1821 - 8.9.1894, German scientist (medic and natural scientist), two eye mirrors with replaceable concave lenses, drawing, sketch, clipping, technics, physics, historic, historical
Picture No
10452111
Media ID
46015673
Size
2027px x 2251px
(618KB)
Credit
INTERFOTO / Sammlung Rauch / Mary Evans
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Concave Helmholtz Lenses Medic Mirrors Replaceable Technics
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