3276 x 4499 px | 27,7 x 38,1 cm | 10,9 x 15 inches | 300dpi
Date de la prise de vue:
1890
Informations supplémentaires:
Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.
Illustration from Home Words published 1890. Info from wiki: In 1815, aware of the explosions often caused in mines by naked flames, Stephenson began to experiment with a safety lamp that would burn in a gaseous atmosphere without causing an explosion. At the same time, the eminent scientist and Cornishman Humphry Davy was also looking at the problem. Despite his lack of scientific knowledge, Stephenson, by trial and error, devised a lamp in which the air entered via tiny holes, through which the flames of the lamp could not pass. A month before Davy presented his design to the Royal Society, Stephenson demonstrated his own lamp to two witnesses by taking it down Killingworth Colliery and holding it in front of a fissure from which firedamp was issuing. The two designs differed; Davy's lamp was surrounded by a screen of gauze, whereas Stephenson's prototype lamp had a perforated plate contained in a glass cylinder. For his invention Davy was awarded £2, 000, whilst Stephenson was accused of stealing the idea from Davy, because he was not seen as an adequate scientist who could have produced the lamp by any approved scientific method. A local committee of enquiry gathered in support of Stephenson, exonerated him, proved he had been working separately to create the 'Geordie Lamp', and awarded him £1, 000, but Davy and his supporters refused to accept their findings, and would not see how an uneducated man such as Stephenson could come up with the solution he had. In 1833 a House of Commons committee found that Stephenson had equal claim to having invented the safety lamp. Davy went to his grave believing that Stephenson had stolen his idea. The Stephenson lamp was used almost exclusively in North East England, whereas the Davy lamp was used everywhere else. The experience gave Stephenson a lifelong distrust of London-based, theoretical, scientific experts.
