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Wikipedia: Joseph von Fraunhofer (6 March 1787 – 7 June 1826) was a German optician. He is known for the discovery of the dark absorption lines known as Fraunhofer lines in the Sun's spectrum, and for making excellent optical glass and achromatic telescope objectives.
![[Fraunhofer demonstrating the spectroscope.]](http://images.ookaboo.com/photo/s/Fraunhofer_spectroscope_s.jpg "Fraunhofer demonstrating the spectroscope.")
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![[Joseph von Fraunhofer]](http://images.ookaboo.com/photo/s/Fraunhofer_2_s.jpg "Joseph von Fraunhofer")
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 from Mu301 |
from ArtMechanic |
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