Joseph von Fraunhofer, German physicist, c 1820s.

 
Joseph von Fraunhofer, German physicist, c 1820s.
4 0 c m
 
33cm
actual image size: 25cm x 32cm

Description

Joseph von Fraunhofer (1787-1826) founded an optical institute at Munich in 1807. His improvements to prisms and telescopes enabled him to discover dark lines in the sun's spectrum, called Fraunhofer's lines.

Image Details

Image Ref.
 
10324082

© Science Museum / Science & Society Picture Library

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