Search results
247 results found
(Encyclopedia) Maximilian I, 1459–1519, Holy Roman emperor and German king (1493–1519), son and successor of Holy Roman Emperor Frederick III. As emperor, he aspired to restore forceful imperial leadership and i...
(Encyclopedia) catalyst, substance that can cause a change in the rate of a chemical reaction without itself being consumed in the reaction; the changing of the reaction rate by use of a catalyst is called catalysis...
(Encyclopedia)
CE5
Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum
energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...
(Encyclopedia) Rulers of the Byzantine Empire
...
(Encyclopedia) metallurgy mĕtˈəlûrˌjē [key], science and technology of metals and their alloys. Modern metallurgical research is concerned with the preparation of radioactive metals, with obtaining metals econ...
(Encyclopedia) marriage, socially sanctioned union that reproduces the family. In all societies the choice of partners is generally guided by rules of exogamy (the obligation to marry outside a group); some societie...
(Encyclopedia) homosexuality, a term created by 19th cent. theorists to describe a sexual and emotional interest in members of one's own sex. Today a person is often said to have a homosexual or a heterosexual orien...
(Encyclopedia) salt, chemical compound (other than water) formed by a chemical reaction between an acid and a base (see acids and bases).
Salts are also prepared by methods other than neutralization. A metal can c...
(Encyclopedia) Constantine I or Constantine the Great kŏnˈstəntēn, –tīn [key], 288?–337, Roman emperor, b. Naissus (present-day Niš, Serbia). He was the son of Constantius I and Helena and was named in ful...
(Encyclopedia) Solomon Islands, independent Commonwealth nation (2015 est. pop. 587,000), c.15,500 sq mi (40,150 sq km), SW Pacific, E of New Guinea. The islands that constitute the nation of the Solomon Islands—G...