This chemist discovered several elements, including magnesium, & also invented a miner's safety lamp
[DOC] [TLE] Humphry Davy, British chemist - Stock Image H404/0388 - Science ... [PAR] He also invented the Davy lamp, a safety lamp for miners, which shielded a ... 
several elements including barium, potassium, sodium, magnesium, calcium and
... [DOC] [TLE] Humphry Davy, British chemist - Stock Image H404/0355 - Science ... [PAR] He also invented the Davy lamp, a safety lamp for miners, which shielded a ...