Gemfry Davy

Picture of Gemfry Davy

Date of Birth: 12/17/1778

Age: 50

Place of birth: Penzance

Citizenship: United Kingdom


Born December 17, 1778 in Penzance (Cornwall). In spite of the early showed outstanding ability, mediocre at school and was given in training to the pharmacist. Here he began his first chemical experiments, and in addition, to educate ourselves on them drawn up by a vast plan. At the age of 17 years Davey has made the first discovery received heat from the friction of two pieces of ice, he came to the conclusion that the heat - it is a special kind of movement. Davy Research attracted the attention of the famous mathematician Hilbert, with the support of which the young scientist was in 1798 in place of the chemist Pneumatic Institute in Bristol. There he studied the action of gases (nitrous oxides, hydrogen and methane) per person in 1799 and opened stimulating ( "laughing"), and then nitrous oxide anesthetic effect and suggested its use in surgery. In 1801, Davey was invited to the Royal Institution, where he worked as an assistant B.Rumforda; in 1802 he became professor of chemistry. For 10 years, he conducted research on the use of chemicals in agriculture and the leather industry. Read them lectures on agricultural chemistry were published in book form, which served as a conventional book on this discipline for over 50 years.

However, the greatest success achieved Davy in electrochemistry. First egoraboty in this area were dedicated to studying the effect of electric current on the chemical compounds. He showed that the electric current causes decomposition (electrolysis) acids and salts thereof. In 1807, using the largest while "voltaic pile", obtained by electrolysis of two new elements melts compounds - metal potassium and sodium. In 1808, by the same four metal were prepared: barium, calcium, strontium, and magnesium, followed by boronic acid is selected from boron. Davey belong carefully executed study, which allowed to establish the nature of chlorine and iodine; He also tried to get a pure fluorine and other halogens. These studies led him to the creation of acid theory refutes Lavoisier that each acid certainly contains oxygen.

In 1810 Davy, using a powerful electric battery of 2 thousand. Galvanic cells received an electric arc between two carbon rods connected to the battery poles (later called the arc voltaic). In 1815, together with M.Faradeem invented the Davy lamp secure; For this invention the Royal Society awarded him the medal B.Rumforda.

In 1803 Davy was elected to the Royal Society of London, in 1820-1827 he was president. Davy died in Geneva on 29 May 1829.