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Laue, Max von

(Encyclopedia)Laue, Max von mäks fən louˈə [key], 1879–1960, German physicist, studied under Max Planck. From 1919 he was professor of theoretical physics at the Univ. of Berlin. He worked out a method for me...

Wines, Enoch Cobb

(Encyclopedia)Wines, Enoch Cobb, 1806–79, American clergyman and prison reformer, b. Hanover, N.J. After a varied career as a schoolmaster and preacher he became (1861) secretary of the Prison Association of New ...

Planck, Max

(Encyclopedia)Planck, Max mäks plängk [key], 1858–1947, German physicist. Seeking to explain the experimental spectrum (distribution of electromagnetic energy according to wavelength) of blackbody radiation, he...

echo, in acoustics

(Encyclopedia)echo, reflection of a sound wave back to its source in sufficient strength and with a sufficient time lag to be separately distinguished. If a sound wave returns within 1⁄10 sec, the human ear is in...

Lamb, Willis Eugene, Jr.

(Encyclopedia)Lamb, Willis Eugene, Jr., 1913–2008, American physicist, b. Los Angeles, Ph.D. Univ. of California, Berkeley, 1938. Lamb was a professor at Columbia (1938–51), Stanford (1951–56), Oxford (1956�...

't Hooft, Gerardus

(Encyclopedia)'t Hooft, Gerardus, 1946–, Dutch theoretical physicist, Ph.D. Univ. of Utrecht, 1972. He has been a professor at the Univ. of Utrecht since 1977. 't Hooft shared the 1999 Nobel Prize in Physics with...

Zeeman, Pieter

(Encyclopedia)Zeeman, Pieter pēˈtər zāˈmän [key], 1865–1943, Dutch physicist. He was professor of physics at the Univ. of Amsterdam from 1900 and director of the Physical Institute, Amsterdam, from 1908. In...

aerodynamics

(Encyclopedia)aerodynamics, study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primar...

Grimaldi, Francesco Maria

(Encyclopedia)Grimaldi, Francesco Maria fränchāsˈkō märēˈä grēmälˈdē [key], 1618?–1663, Italian physicist and mathematician. A Jesuit and professor at Bologna, he studied in detail and named the dark ...

windsurfing

(Encyclopedia)windsurfing, also called boardsailing or sailboarding, water sport that employs a board-and-sail device and combines elements of sailing and surfing. The sailboard was first developed in 1964 by boate...