Physicists usually specialize in theoretical or experimental areas.
In addition, many physicists work in such applied or interdisciplinary areas as microelectronics, communications, medical physics, biophysics, power production system s, space science and geophysics. Two thirds of all physicists work in research and development. A bachelor's degree is the minimum requirement for a person desiring to enter the field of physics. At the bachelor's level, most physicists are in engineering positions, where their breadth of understanding and versatility are much in demand. Some of these careers require additional education or experience.