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Henry, Joseph

(Encyclopedia)Henry, Joseph, 1797–1878, American physicist, b. Albany, N.Y., educated at Albany Academy. He taught (1826–32) mathematics and natural philosophy at Albany Academy and was professor of natural phi...

Dale, Sir Henry Hallett

(Encyclopedia)Dale, Sir Henry Hallett, 1875–1968, English scientist. For his study of acetylcholine as agent in the chemical transmission of nerve impulses he shared with Otto Loewi the 1936 Nobel Prize in Physio...

Dewar, Sir James

(Encyclopedia)Dewar, Sir James dyo͞oˈər [key], 1842–1923, British chemist and physicist, b. Scotland. He was professor of chemistry (from 1877) at the Royal Institution, London, and later was director of the D...

law of simple multiple proportions

(Encyclopedia)law of simple multiple proportions, in chemistry, the statement that when two or more elements form more than one compound, the ratio of the weights of one element that combine with a given weight of ...

Salic law, rule of succession

(Encyclopedia)Salic law sāˈlĭk [key], rule of succession in certain royal and noble families of Europe, forbidding females and those descended in the female line to succeed to the titles or offices in the family...

Holland House

(Encyclopedia)Holland House, residence of the Holland family in Kensington, London, made famous in the first 40 years of the 19th cent. by the hospitality of Henry Fox, 3d Baron Holland, and his wife. Built in 1606...

Frankland, Sir Edward

(Encyclopedia)Frankland, Sir Edward, 1825–99, English chemist. He studied under Bunsen and Liebig and taught at several English institutions. In working on the synthesis and isolation of compounds he evolved the ...

field, in physics

(Encyclopedia)field, in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The...

Bragg, Sir William Henry

(Encyclopedia)Bragg, Sir William Henry, 1862–1942, English physicist, educated at King William's College, Isle of Man, and Trinity College, Cambridge. He served on the faculties of the Univ. of Adelaide in Austra...

Draco, Athenian politician and law codifier

(Encyclopedia)Draco drāˈkŏn [key], fl. 621 b.c., Athenian politician and law codifier. Of his codification of Athenian customary law only the section dealing with involuntary homicide is preserved. From this and...