Jules Lisajous, French physicist, mid 19th century.

 
Jules Lisajous, French physicist, mid 19th century.
4 0 c m
 
32cm
actual image size: 24cm x 32cm

Description

Jules Lisajous (1822-1880) invented the vibration microscope, an optical method for studying vibrations in 1855. He achieved this by attaching a light beam to the vibrating objects that then reflected onto a screen. During the siege of Paris in 1871 Lisajous's system of optical telegraphy was used.

Image Details

Image Ref.
 
10302028

© Science Museum / Science & Society Picture Library

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