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Ayton, Sir Robert

(Encyclopedia)Ayton or Aytoun, Sir Robert both: āˈtən [key], 1570–1638, English poet and courtier. He was private secretary to the queens of James I and Charles I, besides holding other posts of honor. He wrot...

flame test

(Encyclopedia)flame test, test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt ...

Grimm, Jakob

(Encyclopedia)Grimm, Jakob grĭm [key], 1786–1859, and which did much to encourage the romantic revival of folklore. Among their best-known stories are “Hansel and Gretel,” “Rapunzel,” “The Breman Town...

Hahn, Otto

(Encyclopedia)Hahn, Otto ôˈtō hän [key], 1879–1968, German chemist and physicist. His important contributions in the field of radioactivity include the discovery of several radioactive substances, the develop...

Mendel, David

(Encyclopedia)Mendel, David: see Neander, Johann August Wilhelm. ...

Struve

(Encyclopedia)Struve shtro͞oˈvə [key], family of astronomers. Friedrich Georg Wilhelm von Struve, 1793–1864, was born in Germany but later lived in Russia. While director (1817–39) of Dorpat Observatory he w...

Book of Changes

(Encyclopedia)Book of Changes or I Ching ē jĭng, ē chĭng [key], ancient Chinese book of prophecy and wisdom. The oldest parts of its text are thought to have attained their present form in the century before Co...

monad

(Encyclopedia)monad: see Bruno, Giordano; Leibniz, Gottfried Wilhelm, Baron von. ...

Grossbeeren

(Encyclopedia)Grossbeeren grōsbārˈən [key], village, Brandenburg, E Germany. There, in 1813, Friedrich Wilhelm von Bülow, using the Prussian militia for the first time, defeated the French under Oudinot, thus ...

Edwards, Sir Robert Geoffrey

(Encyclopedia)Edwards, Sir Robert Geoffrey, 1925–2013, British physiologist, Ph.D. Edinburgh Univ., 1955. In 1963 he became a research fellow at Cambridge. He was associated with the university until his death, a...