A compass whose magnetic needle is entirely surrounded by metal, viewed through x-ray. Photoprint from radiograph by W.K. Röntgen, 1895.

  • Röntgen, Wilhelm Conrad, 1845-1923.
Date:
1895
Reference:
32993i
Catalogue details

Licence: Public Domain Mark

Credit: A compass whose magnetic needle is entirely surrounded by metal, viewed through x-ray. Photoprint from radiograph by W.K. Röntgen, 1895. Wellcome Collection. Source: Wellcome Collection.

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