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The magnetron remains the essential radio tube for shortwave radio signals of all types. It not only changed the course of the war by allowing us to develop airborne radar systems, it remains the key piece of technology that lies at the heart of your microwave oven today. The cavity magnetron's invention changed the world. [5]
Theoretical psychology is not fundamental or comprehensive theory of psychology, rather, for theoretical psychology to operate correctly it is important to supplement empirical psychology and give reason to topics and produce theories until they can be empirically verified by the other branches of psychology. [1]
In McFadden's cemi field theory, as well as in Drs Fingelkurts' Brain-Mind Operational Architectonics theory, the brain's global EM field modifies the electric charges across neural membranes, and thereby influences the probability that particular neurons will fire, providing a feed-back loop that drives free will. However, in the theories of ...
Psychology Today content and its therapist directory are found in 20 countries worldwide. [3] Psychology Today's therapist directory is the most widely used [4] and allows users to sort therapists by location, insurance, types of therapy, price, and other characteristics. It also has a Spanish-language website.
According to J. P. Guilford's Structure of Intellect (SI) theory, an individual's performance on intelligence tests can be traced back to the underlying mental abilities or factors of intelligence. SI theory comprises multiple intellectual abilities organized along three dimensions—Operations, Content, and Products. [5] Operations dimension
The complete theory of electromagnetism was only formulated by James Clerk Maxwell in 1865, and has been found valid up until today. Patent sketch of Howard Johnson's magnet motor Since the middle of the 20th century, a number of inventors claimed to have constructed various magnet motors.
The theoretical principles governing the operation of a maser were first described by Joseph Weber of the University of Maryland, College Park at the Electron Tube Research Conference in June 1952 in Ottawa, [2] with a summary published in the June 1953 Transactions of the Institute of Radio Engineers Professional Group on Electron Devices, [3] and simultaneously by Nikolay Basov and Alexander ...
The gyroklystron is a microwave amplifier with operation dependent on the cyclotron resonance condition. [13] Similarly to the klystron, its operation depends on the modulation of the electron beam, but instead of axial bunching the modulation forces alter the cyclotron frequency and hence the azimuthal component of motion, resulting in phase ...