Geordie lamp the base so that it gave more light and tried new versions on 4 and 30 November. This was presented to the Literary and Philosophical Society (Lit & Phil) of Newcastle upon Tyne on 5 December 1815. Although controversy arose between Stephenson's design and the Davy lamp (invented by Humphry Davy in the same year), Stephenson's original design worked on significantly different principles from Davy's final design. If the lamp were sealed except for a restricted air ingress (and a suitably sized chimney) then the presence of dangerous amounts of firedamp in the incoming air would (by its combustion) reduce
History of Newcastle upon Tyne Tyneside, or more accurately Newcastle. Another theory, however, is that the name 'Geordie' came from the inventor of the Geordie lamp, George Stephenson. It was a type of safety lamp used in mining, but was not invented until 1815. Apparently the term 'German Geordie' was in common use during the 18th century. In 1771 a flood swept away much of the bridge at Newcastle. The bridge had been built in 1250 and repaired after a flood in 1339. The bridge supported various houses and three towers and an old chapel. A blue stone was placed in the middle of the