Gas detector early detection methods relied on less precise detectors. Through the 19th and early 20th centuries, coal miners would bring canaries down to the tunnels with them as an early detection system against life-threatening gases such as carbon dioxide, carbon monoxide and methane. The canary, normally a very songful bird, would stop singing and eventually die if not removed from these gases, signaling the miners to exit the mine quickly. The first gas detector in the industrial age was the "flame safety lamp" (or Davy lamp) was invented by Sir Humphry Davy (of England) in 1815 to detect the presence of
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