Safety lamp could create a sufficient updraft that firedamp would not penetrate down the chimney. Further observations of the speed of flame fronts in fissures and passageways led him to design a lamp with fine tubes admitting the air. Sir Humphry Davy was asked to consider the problems of a safety lamp following the Felling explosion. Previous experimenters had used coal gas (chiefly carbon monoxide) incorrectly, believing it to be the same as firedamp. Davy however performed his experiments with samples of firedamp collected from pits. As an experimental chemist, he was familiar with flames not passing through gauze; his experiments enabled
History of South Shields in Victorian times, drawing immigrants from far and wide. In South Shields the population soared from approximately 12,000 in 1801 to 75,000 by the late 1860s. Collieries in South Shields included: Coal mining was very hazardous. Shafts could collapse at any time and before the safety lamp was invented in 1815 naked flames carried by miners to light their way could ignite gas underground causing explosions and many deaths. Some mines even had shafts that stretched several miles out under the sea. Overcrowding in the town made sanitation a problem, partly solved by Cleadon Water Pumping Station (a large tower