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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...

Poisson, Siméon Denis

(Encyclopedia)Poisson, Siméon Denis sēmāôNˈ dənēˈ pwäsôNˈ [key], 1781–1840, French mathematician and physicist. From 1802 he taught at the École polytechnique, Paris, and was also on the faculty of sc...

electricity

(Encyclopedia)CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...

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...

composition, in ancient and medieval law

(Encyclopedia)composition, in ancient and medieval law, a sum of money paid by a guilty party as satisfaction to the family of the person who was injured or killed. Failure to make the payment might justify retalia...

Ellenborough, Edward Law, 1st Baron

(Encyclopedia)Ellenborough, Edward Law, 1st Baron, 1750–1818, British jurist and statesman. He achieved fame through his successful defense of Warren Hastings in the impeachment trial (1788–95), but his princip...

Frederick Law Olmstead National Historic Site

(Encyclopedia)Frederick Law Olmstead National Historic Site: see National Parks and Monuments (table)national parks and monuments (table). ...

Cavendish, Henry

(Encyclopedia)Cavendish, Henry, 1731–1810, English physicist and chemist, b. Nice. He was the son of Lord Charles Cavendish and grandson of the 2d duke of Devonshire. He was a recluse, and most of his writings we...

chemical bond

(Encyclopedia)chemical bond, mechanism whereby atoms combine to form molecules. There is a chemical bond between two atoms or groups of atoms when the forces acting between them are strong enough to lead to the for...