Description

to aid West India trade

1821) for Martin van Marum and used at Teyler's Museum at Haarlem in the Netherlands

The giant figures of Gog and Magog wink slyly to one another in the background

A longitudinal section of the stomach of a vampire bat

Wilhelm Conrad Roentgen, German physicist Finish:Float frame to aid West India tradeWilhelm Conrad Roentgen, German physicist, (c1924). On 8 November 1895, Roentgen (or Rntgen, 1845 1923) discovered what came to be known as 'X rays'. He noticed that when a current was passed though a Crookes tube covered with a piece of black card, a nearby piece of paper painted with barium cyanide fluoresced. Later, he found that these X rays passed through flesh, enabling the bones to be clearly seen. In 1901, he was the first recipient of the

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