Humphry Davy

xxxyooou 2,175 views 16 slides Jun 20, 2014
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About This Presentation

Life, works, and history of Humphry Davy


Slide Content

Moises Von Rosauro R. De Gacia Humphry Davy

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Born:   Dec 17, 1778 Birthplace :  Penzance, Cornwall, England Died :   May 29, 1829 Location of death:  Geneva, Switzerland Cause of death:  Heart Failure Remains :  Buried, Cimetière des Plainpalais , Geneva, Switzerland Who is Humprhy Davy?

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. During his school days at the grammar schools of Penzance and Truro he showed few signs of a taste for scientific pursuits or indeed of any special zeal for knowledge or of ability beyond a certain skill in making verse translations from the classics and in storytelling Life and Works of Davy

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. He was apprenticed to a surgeon and aged 19 went to Bristol to study science . He prepared and inhaled nitrous oxide (laughing gas) and in 1800 published the results of his work in 'Researches, Chemical and Philosophical'. Figure A young Humphry Davy gleefully works the bellows in this caricature by James Gillray of experiments with laughing gas at the Royal Institution. The lecturer is Thomas Garrett, Davy’s predecessor as professor of chemistry. Benjamin Thompson, Count Rumford, the founder of the Royal Institution, stands at the doorway. CHF Collections.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. He became a fellow of the Royal Society in 1803 and was awarded its Copley Medal in 1805 . In 1800, the Italian scientist Alessandro Volta had introduced the first battery.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy used this for what is now called electrolysis and was able to isolate a series of substances for the first time. P otassium and Sodium in 1807 C alcium , Strontium , Barium and Magnesium the following year.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy was now considered one of Britain's leading scientists and was knighted in 1812. In 1815, he received a letter from some Newcastle miners which told of the dangers they faced from methane gas

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy separated the flame from the gas, and his 'Davy ' lamp later became widely used . The same year George Stephenson, the railway engineer, also invented a safety lamp. Figure An 1830 engraving of Sir Humphry Davy, by G. R. Newton, after a painting by Sir Thomas Lawrence (1769–1830). Davy stands next to one of his inventions, the miner's safety lamp. CHF Collections.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy was made a baronet in 1818 and from 1820 - 1827 was president of the Royal Society He died on 29 May 1829 in Switzerland. His assistant, Michael Faraday , went on to establish an even more prestigious reputation than Davy.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Apprenticed to an apothecary-surgeon, Davy taught himself a wide range of other subjects: theology and philosophy, poetics, seven languages, and several sciences, including chemistry. Additional INformation

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. In 1798 he took a position at Thomas Beddoes’s Pneumatic Institution, where the use of the newly discovered gases in the cure and prevention of disease was investigated.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy’s earliest published work “ An Essay on Heat, Light, and the Combinations of Light,” in Contributions to Physical and Medical Knowledge, Principally from the West of England,  ed. Beddoes, 1799 was a refutation of Lavoisier’s caloric, arguing, among other points, that heat is motion but light is matter .

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. In 16th of February 1801 Davy was appointed—first as a lecturer, then as a professor of chemistry 31st of May 1802 —to the Royal Institution in London. In 1800, his electrochemical experiments led him to propose that the tendency of one substance to react preferentially with other substances—its “affinity”—is electrical in nature.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. Davy’s recognition that the alkalis and alkaline earths were all oxides challenged Lavoisier’s theory that oxygen was the principle of acidity. Later, Davy determined that not all acids contain oxygen, including muriatic acid (our hydrochloric acid), which, as Davy discovered, was not “ oxymuriatic acid,” as Lavoisier thought

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. H e wrote the first text on the application of chemistry to agriculture In 1810, at the invitation of the Dublin Society, he gave a course of lectures on electro-chemical science, and in the following year he again lectured in Dublin, on chemistry and geology, receiving large fees at both visits.

At the end of the day before you close your eyes, be content with were you’ve been, and proud of who you are. THANK YOU 