Sir Humphry Davy, 1st Baronet FRS MRIA FGS (17 December 1778 – 29 May 1829) was an English chemist and inventor. He is probably best remembered today for his discoveries of several alkali and alkaline earth metals, as well as contributions to the discoveries of the elemental nature of chlorine and iodine. Berzelius called Davy's 1806 Bakerian Lecture On Some Chemical Agencies of Electricity "one of the best memoirs which has ever enriched the theory of chemistry." This paper was central to any chemical affinity theory in the first half of the nineteenth century. In 1815 he invented the Davy lamp, which allowed miners to work safely in the presence of flammable gases.
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“The wealth and prosperity of the country are only the comeliness of the body, the fullness of the flesh and fat; but the spirit is independent of them; it requires only muscle, bone and nerve for the true exercise of its functions. We cannot lose our liberty, because we cannot cease to think.”
—Humphry, Sir Davy (17781829)