1 Certain companies also require that a CPA have a master's degree. 2  Increase your job prospects by getting a master's in either finance or accounting. 3  These programs typically take one or two years to complete. 4  Some states allow prospective candidates to substitute relevant work experience for a bachelor's degree.
The Discovery of the Electrons [edit]. The Electron was discovered in 1896, by the British physicist J. J. Thomson, using a cathode rays while doing discharge tube experiments. Thomson also determined e/m, ratio of the charge e to the mass m of the material particle which constituted these rays.
This discovery of conduction became known as the Edison effect. In 1904, John Fleming applied the Edison effect in inventing a two-element electron tube called a diode, and Lee De Forest followed in 1906 with the three-element tube, the triode.mage: Multiple Radio Tuner of Marconi, 1907 â Marconi Collection of the da Vinci Museum, Milano, Italy. The first applications of electron tubes were in radio communications. Guglielmo Marconi pioneered the development of the wireless telegraph in 1896 and long-distance radio communication in 1901.