Dufay, Charles Francois De Cisternay

0.01 sec.

Dufay, Charles François De Cisternay

Born Sept. 14, 1698, in Paris; died there July 16, 1739. French physicist. Member of the Paris Academy of Sciences (1723).

Beginning in 1732, Dufay was director of the Botanical Gardens. He was the first (1733-34) to arrive at the conclusion of the existence of two types of electricity, and he determined that similarly charged bodies repel each other, whereas oppositely charged bodies attract each other. He observed electrical sparks from an electrified, human body. Dufay designed the first electric measuring instrument—a prototype of the electroscope. He was the first to attempt to measure magnetic force with the aid of a magnetized needle, fastened by means of a spring (magnetometer).

REFERENCE

Rosenberger, F. Istoriia fiziki, 2nd ed., part 2. Moscow-Leningrad, 1937. (Translated from German.)

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			Dudley, Joseph Dudley, Robert Dudley, Thomas Dudok, Willem Marinus Dudok, William Dudorovskii Dudow, Slatan Duduk Dudypta Dudyshkin, Stefan Dudyshkin, Stefan Semenovich Due due care due diligence due process due process of law Duecento duel Duer, William Duerk, Alene Duero Duesenberg, Fred Duesenberry, James Duessa duet Dufay, Charles Francois De Cisternay Dufay, Charles François De Cisternay Dufay, Guillaume Duff Duff Cooper, Alfred Duff's device Duff, Alexander Duff, Sir Lyman Poore duffel duffer Dufferin and Ava, Frederick Temple Hamilton-Temple-Blackwood Duffy Duffy blood group Duffy, Ben Duffy, Clinton T. Duffy, Francis P. Duffy, Hugh Duffy, Sir Charles Gavan Dufour Effect Dufour number Dufour, Guillaume Henri Dufourny De Villiers, Louis Pierre Dufourspitze dufrenite dufrenoysite duftite			Duesseldorf Linux User Group Duesseldorp Duesseldorp duet duet duet Duet (music) Duet (music) Duets Duets Duetsche Luft Hansa Duett duette duetted duetted duetting duetting Duettino duettist duettist duettists duettists Duetto DUEV DUF DUFA DUFAK Dufau Goaillard Mécanique Spécialisée Dufay Dufay Dufay, Charles Francois De Cisternay Dufay, Charles François De Cisternay Dufay, Guillaume Dufay, Guillaume Dufayt DUFC DUFCU DUFDS DUFE duff duff duff duff Duff Beer (The Simpsons) Duff Beer (The Simpsons) Duff Cooper, Alfred Duff Devices duff up Duff's device Duff, Alexander Duff, Sir Lyman Poore DUFFA DUFFC duffed duffed duffel duffel duffel bag duffel bags duffel coat duffel coats

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.