J.J. THOMSON II-3

 Sir John Joseph "J.J." Thomson

Brief Life Description:
    Sir J.J. Thomson is a famous physicist from England. He was born in December 18, 1856 in Cheetham Hill, Mancheter. He attended the Victoria University of Manchester. He dated and later married Rose Elizabeth Paget. He died on 30th of August 1940 in Cambridge. His death was unspecified.





Facts:

   -In the year 1897, he tells a startled scientific audience that he's discovered something smaller than an atom. It was a particle with a minuscule mass and a negative charge.

     - He was a director of Cavendish Laboratory at Cambridge University.

    - Thomson was researching about electrical currents inside Cathode ray tubes.

    -Thomson observed that the rays are deflected by an electric field. 


Thomson's Conclusion:

   He concluded that:

   "As the cathode rays carry a charge of negative electricity, are deflected by an electrostatic force as if they were negatively electrified, and are acted on by a magnetic force in just the way in which this force would act on a negatively electrified body moving along the path of these rays, I can see no escape from the conclusion that they are charges of negative electricity carried by particles of matter."

- J.J. THOMSON

A cathode ray. It was used by Thomson in his experiments.

SOURCES
http://people.famouswhy.com/j__j__thomson/



http://en.wikipedia.org/wiki/J._J._Thomson



http://de.academic.ru/pictures/dewiki/74/JJ_Thomson.jpg

group 5

HERRERA- ABSENT

IGNACIO
ILAO

INOCENCIO