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Bradbury, Ray

(Encyclopedia)Bradbury, Ray (Raymond Douglas Bradbury) brd´br, –br [key], 1920–2012, American writer, b. Waukegan, Ill. A popular and prolific writer of science fiction who did much to bring the ge...

ray

(Encyclopedia)ray, extremely flat-bodied cartilaginous marine fish, related to the shark. The pectoral fins of most rays are developed into broad, flat, winglike appendages, attached all along the sides of the head...

ray

(Encyclopedia)ray, in physics, term denoting the straight line along which light or other form of radiation is propagated from its source. It generally refers to the line of propagation of waves but is also applied...

X ray

(Encyclopedia)X ray, invisible, highly penetrating electromagnetic radiation of much shorter wavelength (higher frequency) than visible light. The wavelength range for X rays is from about 108 m to about 1011...

Bradbury, William Batchelder

(Encyclopedia)Bradbury, William Batchelder bch´ldr [key], 1816–68, American hymn composer and music editor, b. York, Maine; pupil of Lowell Mason. He organized the Juvenile Music Festivals in New York, and...

Röntgen ray

(Encyclopedia)Röntgen ray: see X ray.

Ray, John

(Encyclopedia)Ray or Wray, John, 1627–1705, English naturalist. He was extremely influential in laying the foundations of systematic biology. With his pupil Francis Willughby, he planned a complete classification...

Ray, Man

(Encyclopedia)Ray, Man, 1890–1976, American photographer, painter, and sculptor, b. Philadelphia. Along with Marcel Duchamp, Ray was a founder of the Dada movement in New York and Paris. He is celebrated for his ...

Ray, Satyajit

(Encyclopedia)Ray, Satyajit sätyä´jt r, r [key], 1921–92, Indian film director, b. Calcutta (now Kolkata). His subtle, austere, and delicately lyrical films made him one of the outstanding filmmakers of ...

Roentgen ray

(Encyclopedia)Roentgen ray: see X ray.