Chaffee, Emory Leon

Chaffee, Emory Leon

▪ American physicist
born April 15, 1885, Somerville, Mass., U.S.
died March 8, 1975, Waltham, Mass.

      U.S. physicist known for his work on thermionic vacuum (electron) tubes.

      Chaffee received the Ph.D. from Harvard University in 1911. His dissertation established the “Chaffee gap”—a method of producing continuous oscillations for long-distance telephone transmissions. He taught at Harvard (1911–53) and in 1940 succeeded G.W. Pierce as director of the Cruft Laboratory. He was also co-director of the Lyman Laboratory of Physics (1947–53) and director of the Laboratories of Engineering, Science, and Applied Physics (1948–53).

      Chaffee's research focussed on electric oscillations, vacuum tubes, and optics, and he secured a number of patents for radio devices. During World War II he directed research leading to improvements in radar. He also did early work on weather control, using airplanes in 1924 to break up clouds by means of electrically charged grains of sand.

* * *


Universalium. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Emory Leon Chaffee — (* 15. April 1885 in Somerville, Massachusetts; † 8. März 1975 in Waltham, Massachusetts) war ein US amerikanischer Physiker. Chaffee studierte Elektrotechnik am MIT und erhielt 1907 seinen Bachelor. Anschließend setzte er sein Studium in Harvard …   Deutsch Wikipedia

  • Emory Leon Chaffee — (né le 15 avril 1885 à Somerville (Massachusetts) – mort le 8 mars 1975 à Waltham (Massachusetts)) était un physicien américain et professeur à l Université d Harvard entre 1911 et 1953. Il étudia l ingénierie électrique et reçu sa licence au MIT …   Wikipédia en Français

  • Emory Leon Chaffee — Infobox Scientist name = Emory Leon Chaffee box width = caption = Emory Leon Chaffee birth date = birth date and age|1885|4|15 birth place = Somerville, Massachusetts death date = death date and age|1975|3|8|1885|4|15 death place = Waltham,… …   Wikipedia

  • Chaffee — or Chafee may refer to: Chaffee, California Chaffee, Missouri Chaffee, New York Chaffee County, Colorado Chaffee (crater), lunar crater M24 Chaffee, light tank Fort Chaffee, Arkansas Fresno Chaffee Zoo, in Fresno, California Roger B. Chaffee… …   Wikipedia

  • Chaffee — ist der Familienname folgender Personen: Adna Chaffee (1842–1914), US amerikanischer General Adna R. Chaffee, Jr. (1884–1941), US amerikanischer General Emory Leon Chaffee (1885–1975), US amerikanischer Physiker Jerome Bunty Chaffee (1825–1886),… …   Deutsch Wikipedia

  • Emory (name) — Emory (e mo ry) is a common English language masculine given name variant of Emery , of Old German origin (meaning home strength ). Emory is also a common English language surname. [cite web |url=http://www.thinkbabynames.com/meaning/1/Emory… …   Wikipedia

  • Liste der Biografien/Cha — Biografien: A B C D E F G H I J K L M N O P Q …   Deutsch Wikipedia

  • Liste von Physikern — Die Liste von Physikern ist alphabetisch sortiert und enthält nur Forscher, die wesentliche Beiträge zum Fachgebiet geleistet haben. Die Liste soll neben den Lebensdaten das Fachgebiet des Forschers nennen und wenige Stichworte zu den Aspekten… …   Deutsch Wikipedia

  • Claude Shannon — Claude Elwood Shannon (1916 2001) Born April …   Wikipedia

  • Harry Nyquist — (1889 1976) Born February 7, 1889( …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”