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
Miners in the Sky Miners in the Sky Miners in The Sky is a 1967 Science Fiction novel by Murray Leinster. The rings around Thotmess, a gas giant in the system of the star Niletus where planets are called for Ancient Egyptian gods, is a completely lawless place. The only human inhabitants are rugged miners, riding small "donkey ships", who need to contend with both the harsh natural environment and fierce human competitors. "Claim jumping" is frequent and miners must be ready at any moment to take up a gun or a bazooka to defend their finds of "grey matrix in which abyssal crystals