This chemist discovered several elements, including magnesium, & also invented a miner's safety lamp
... will 
always be associated with the miners' safety lamp which he invented to prevent 
explosions... [DOC] [TLE] Famous Scientists - Sir Humphry Davy [PAR] He discovered elements like chlorine and iodine Davy is also remembered for ... 
the lives of miners by making the miners safety lamp, now called the Davy lamp.