Optical refraction experiments. 19th-century diagrams of experiments and theories relating to optics, here mostly concerning the refraction of light.

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Optical refraction experiments. 19th-century diagrams of experiments and theories relating to optics, here mostly concerning the refraction of light. Examples are the refraction of light as it passes from one medium to another (across top), refraction in prisms and lenses (across lower centre and lower left), and a Fresnel lens (lower right). This page is from volume 2 of the 4th edition (1844) of 'Elements de physique experimentale et de meteorologie' by French physicist Claude Servais Mathias Pouillet (1790-1868).

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