Images Dated 19th December 2012

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

The opening of the new water chute at the Belle Vue Fairground and Gardens

The opening of the new water chute at the Belle Vue Fairground and Gardens. In the car for its first run was Sir Leslie Joesph (Managing Director of Belle Vue) speedway rider Dick Fisher, his wife Jean, Mr J W Betts (general Manager), retired speedway star Ken Sharples and publicity manager Johnny Hoskins, who lost his hat on the run. 19th April 1957

© Mirrorpix

Christiaan Huygens, caricature

Christiaan Huygens (1629-1693). Caricature of the Dutch physicist and astronomer Christiaan Huygens. Huygens is best known as the inventor of the pendulum clock. The idea of using a pendulum to measure time had been proposed by Galileo (1564-1642) but he had not found how to keep one swinging. On Christmas Day 1656 Huygens designed a table clock that kept the pendulum swinging by means of a spring. He later made further advances in time-keeping. Huygens also made advances in optics, astronomy, such as discovering the rings of Saturn, and mathematics

© GARY BROWN/SCIENCE PHOTO LIBRARY