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Images Dated 19th December 2012

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 119 pictures in our Images Dated 19th December 2012 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Dmitri Mendeleev, caricature Featured 19 Dec 2012 Print

Dmitri Mendeleev, caricature

Dmitri Mendeleev (1834-1907). Caricature of the Russian chemist Dmitry Ivanovich Mendeleyev. Mendeleyev (also spelt Mendeleev) is best known for developing the first true periodic table of the elements (final version published in 1871). This contained some gaps, but new elements were discovered that fit the gaps and had the properties predicted by the table

© GARY BROWN/SCIENCE PHOTO LIBRARY

James Clerk Maxwell, caricature Featured 19 Dec 2012 Print

James Clerk Maxwell, caricature

James Clerk Maxwell (1831-1879). Caricature of the Scottish physicist James Clerk Maxwell. Maxwell's works cover a wide area of science, and he is regarded as one of the finest minds of the 19th century. His major work was on light and electromagnetic waves. He showed that oscillating charges produced waves in an electromagnetic field, and that these waves had the same velocity as light. This led him to predict other forms of electromagnetic radiation, such as radio waves. His equations introduced the value c for the speed of light. He also worked on the motions of molecules in a gas, and showed that Saturn's rings must be composed of numerous particles

© GARY BROWN/SCIENCE PHOTO LIBRARY

Albrecht von Haller, Swiss anatomist Featured 19 Dec 2012 Print

Albrecht von Haller, Swiss anatomist

Albrecht von Haller (1708-1777), Swiss anatomist and physiologist. Von Haller worked on the nervous system, and recognised the tendency of muscle fibres to contract when the attached nerve is stimulated. He showed that only the nerves can transmit sensation. He wrote the first physiology textbook and worked on the circulation, respiration and digestion. He was the first to assess the effect of a medicine by testing it on the healthy. He was also a poet, bibliographer, botanist and political writer. Lithograph from Galerie medicale (1825-1829), a collection of portraits by Pierre Roch Vigneron (1789-1872)

© SCIENCE PHOTO LIBRARY