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.
Over a century ago in 1895, Roentgen discovered the first example of ionizing radiation, x-rays. Device: a glass envelope under high vacuum, with a wire element at one end forming the cathode, and a heavy copper target at the other end forming the anode.