Chaffee, E. L. 1885-1975
لتكبير النص لتصغير النص-
شخصية
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رقم النظام
987014805364405171
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تم الحفظ بنجاحהפריט קיים באזור האישישגיאהلحفظ المحتوى الرجاء تسجيل الدخول
معلومات حول الهوية:
الاسم الرئيس (باللاتينية)
Chaffee, E. L. 1885-1975
صِيَغ اسمية أخرى
Chaffee, Emory Leon, 1885-1975
Chaffee, E. Leon, 1885-1975
Chaffee, E. L. (Emory Leon), 1885-
تاريخ الميلاد
1885-04-15
تاريخ الوفاة
1975-03-08
انتماءات أخرى
Americans Bay Staters
مكان الميلاد
Somerville (Mass.)
مكان الوفاة
Waltham (Mass.)
بلدان ذات صلة
United States
أماكن أخرى ذات صلة
Cambridge (Mass.)
مجال النشاط
Physics
Vacuum-tubes--Thermionic emission
Oscillations
Optics
Radar
Weather control
Engineering
College teaching
هيئة ذات صلة
Harvard University
Cruft Laboratory (Harvard University)
Massachusetts Institute of Technology
Boston (Mass.)
مهنة
Physicists
Engineers
University and college faculty members
لغات ذات صلة
eng
النوع الاجتماعي
male
MARC
MARC
أرقام تعريفية أخرى
مصادر المعلومات
- Harvard University. Department of Physics. Physical laboratory manual, 1936:preface (E.L. Chaffee)
- OCLC, July 11, 2018(access points: Chaffee, E. L. (Emory Leon), 1885-1975; Chaffee, E. L. (Emory Leon), 1885- ; Chaffee, Emory Leon, 1885-1975; Chaffee, Emory Leon; Chaffee, E. Leon (Emory Leon), 1885- ; usage: E.L. Chaffee, E. Leon Chaffee)
- Emory Leon Chaffee (Emory Leon Chaffee, 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; 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; director of the Cruft Laboratory; co-director of the Lyman Laboratory of Physics; director of the Laboratories of Engineering, Science, and Applied Physics; research focused 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 ( (Brittanica online, July 11, 2018:) )
- E.L. Chaffee (E.L. Chaffee; year: 1913; subject: Engineering; Continuous Electric Oscillations ( (Franklin Institute Awards online, July 11, 2018:) )
- Emory Leon Chaffee (physicist, engineer, university teacher; American Academy of Arts and Sciences; 1959 IEEE Medal of Honor; educated at: Harvard University, Massachusetts Institute of Technology ( (Wikidata, July 11, 2018:) )