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Robert the Bruce

(Encyclopedia)Robert the Bruce: see Robert I, king of Scotland. ...

Robert the Devil

(Encyclopedia)Robert the Devil, hero of a medieval legend. He was sold to the devil by his mother before his birth but upon discovering the fact did penance and was able to purify himself of his many sins. The tale...

Robert the Strong

(Encyclopedia)Robert the Strong, d. 866, French warrior, marquess of Neustria; father of the French kings Eudes and Robert I and ancestor of the Capetians. He joined the rebellious nobles against Charles II, Empero...

Robinson, Sir Robert

(Encyclopedia)Robinson, Sir Robert, 1886–1975, British chemist, D.Sc. Univ. of Manchester, 1910. Robinson taught at the universities of Sydney (1912–15), Liverpool (1915–20), St. Andrews (1921–22), Manchest...

Richardson, Robert Coleman

(Encyclopedia)Richardson, Robert Coleman, 1937–2013, American physicist, b. Washington, D.C. Ph.D. Duke Univ., 1966. Richardson was a professor at Cornell from 1968 until his death; he was the university's first ...

Richet, Charles Robert

(Encyclopedia)Richet, Charles Robert shärl rōbĕrˈ rēshāˈ [key], 1850–1935, French physiologist. From 1887 to 1927 he was professor at the Univ. of Paris. His special study was anaphylaxis, a term he used t...

dew

(Encyclopedia)dew, thin film of water that has condensed on the surface of objects near the ground. Dew forms when radiational cooling of these objects during the nighttime hours also cools the shallow layer of ove...

growing season

(Encyclopedia)growing season, period during which plant growth takes place. In temperate climates the growing season is limited by seasonal changes in temperature and is defined as the period between the last killi...

cold frame

(Encyclopedia)cold frame, in horticulture, sun-heated board frame covered with a removable top of glass or other transparent material and sunk into the ground. The top may be solid or slatted or screened for shade....

cryolite

(Encyclopedia)cryolite or kryolite both: krīˈəlītˌ [key] [Gr.,=frost stone], mineral usually pure white or colorless but sometimes tinted in shades of pink, brown, or even black and having a luster like that o...