Quantum Mechanics Sözleri ve Alıntıları
Quantum Mechanics sözleri ve alıntılarını, Quantum Mechanics kitap alıntılarını, Quantum Mechanics en etkileyici cümleleri ve paragragları 1000Kitap'ta bulabilirsiniz.Bohr founded a new Institute for Theoretical Physics in Copenhagen in 1921 and set about gathering around him some of the greatest young geniuses in Europe, most notably Werner Heisenberg and Wolfgang Pauli. These physicists would turn the world of science upside down.
Eventually, Bohr even used Einstein’s greatest contribution to science, his general theory of relativity, against him by showing that it was consistent with the predictions of Heisenberg’s uncertainty principle.
It states that we can never ‘know’ what is going on in the quantum world when we are not looking. All we can do is predict what we will find when we do look. Many physicists agree, since they don’t then have to worry about what is actually going on, arguing that such issues are metaphysical and best left to philosophers.
In the late 1940s three physicists, including the great Richard Feynman, came up with a powerful theory called quantum electrodynamics, or QED for short. It was a generalization of quantum mechanics and provided a new way of describing the way matter interacts with light – in fact, how all matter is held together through the electromagnetic force.
QED is an example of what is called a quantum field theory, an idea that goes back to the late 1920s with the work of Paul Dirac, who wrote a pioneering paper that combined quantum mechanics with Maxwell’s theory of electromagnetism.
In 1924 a young French nobleman called Louis de Broglie made a daring proposal: if a light wave can also behave as a stream of particles, then can moving particles of matter also be made to spread themselves out over space like waves? He suggested that every material object could be associated with a ‘matter wave’ that depended on its mass; the more massive a particle, the shorter its wavelength.
In the photoelectric effect, light shone on an electrically charged metal plate can knock free electrons from its surface. You might think that the energy of the released electrons would depend on the light’s brightness, or intensity. Instead, their energy was found to depend on its frequency. This is an unexpected result if light is a wave, because increasing a wave’s intensity (its height) should increase its energy.