Erasmus Bartholin - Research Article from Science and Its Times

This encyclopedia article consists of approximately 1 page of information about Erasmus Bartholin.
Encyclopedia Article

Erasmus Bartholin - Research Article from Science and Its Times

This encyclopedia article consists of approximately 1 page of information about Erasmus Bartholin.
This section contains 79 words
(approx. 1 page at 300 words per page)

1625-1698

Danish physician and mathematician remembered for discovering double refraction (1669). Bartholin noticed that the transparent crystal Iceland spar (calcite) produced double images of objects viewed through it. He assumed light transmitted through the crystal was being refracted through different angles so as to produce two light rays. Christiaan Huygens explained certain aspects of double refraction with his wave theory of light but full understanding awaited the work of Etienne Malus, on polarization (1809), and Augustin Fresnel (1817).

This section contains 79 words
(approx. 1 page at 300 words per page)
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Erasmus Bartholin from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.