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
Safe bottle lamp where accidental burns due to unsafe lamps is prevalent. Safe bottle lamp The Safe bottle lamp, called sudeepa or sudipa for "good lamp", is a safer kerosene lamp designed by Wijaya Godakumbura of Sri Lanka. The safety comes from heavier glass, a secure screw-on metal lid, and two flat sides which prevent it from rolling if knocked over. As surgeon Dr. Godakumbura saw many burn cases caused by kerosene lamp fires. Over 1 million homes in Sri Lanka do not have electricity, and rely on kerosene lamps for illumination, often improvised lamps made from bottles. These tall lamps tip easily,