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(Encyclopedia)CE5 Bohr-Rutherford atom CE5 Probability distribution of the electron in the hydrogen atom: A. Ground state B. Highly excited state atom [Gr.,=uncuttable (indivisible)], basic unit of matte...

Tudor

(Encyclopedia)Tudor, royal family that ruled England from 1485 to 1603. Its founder was Owen Tudor, of a Welsh family of great antiquity, who was a squire at the court of Henry V and who married that king's widow, ...

personality

(Encyclopedia)personality, in psychology, the patterns of behavior, thought, and emotion unique to an individual, and the ways they interact to help or hinder the adjustment of a person to other people and situatio...

Teutonic Knights

(Encyclopedia)Teutonic Knights or Teutonic Order to͞otŏnˈĭk [key], German military religious order founded (1190–91) during the siege of Acre in the Third Crusade. It was originally known as the Order of the ...

eclipse

(Encyclopedia)CE5 A. Lunar eclipse B. Solar eclipse eclipse ēklĭpsˈ, ĭ– [key] [Gr.,=failing], in astronomy, partial or total obscuring of one celestial body by the shadow of another. Best known are the lu...

transuranium elements

(Encyclopedia)transuranium elements, in chemistry, radioactive elements with atomic numbers greater than that of uranium (at. no. 92). All the transuranium elements of the actinide series were discovered as synthet...

Harding, Warren Gamaliel

(Encyclopedia)Harding, Warren Gamaliel gəmāˈlēəl [key], 1865–1923, 29th President of the United States (1921–23), b. Blooming Grove (now Corsica), Ohio. After study (1879–82) at Ohio Central College, he ...

Geneva, canton and city, Switzerland

(Encyclopedia)Geneva jənēˈvə [key], Fr. Genève, canton, 109 sq mi (282 sq km), SW Switzerland, surroun...

East Prussia

(Encyclopedia)East Prussia, Ger. Ostpreussen, former province of Prussia, extreme NE Germany. The region of East Prussia has low rolling hills that are heavily wooded, and it is dotted by many lakes (especially in ...