Den "dobbelte sirene" af Hermann Ludwig Ferdinand von Helmholtz (1821-1894), en tysk fysiker og fysiolog, som grundigt studerede høremekanismerne.(The “double siren” by Hermann Ludwig Ferdinand von Helmholtz (1821-1894), a German physicist and physiologist, who studied extensively the mechanisms of hearing.)Unknown artist |
| € 171.91
Inklusive 25% moms |
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19. århundrede
· Billed-ID: 949979
Private Collection / Bridgeman Images |
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