4 ene 1897 año - Joseph John Thomson
Born December 18, 1856, near Manchester, England
Died August 30, 1940, In Cambridge, England
J.J. Thomson first studied
experimental physics
and math at Manchester
university and then went to Cambridge.
He also started the
theory of electromagnetism
and found the electron
using his cathode ray tube.
He also predicted of a
particle like the proton.
