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Quote by Albert Einstein

“there are no arbitrary constants ... nature is so constituted that it is possible logically to lay down such strongly determined laws that within these laws only rationally determined constants occur (not constants, therefore, whose numerical value could be changed without destroying the theory).”

Book:Autobiographical Notes

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Autobiographical Notes

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Albert Einstein

Albert Einstein, a German-born theoretical physicist, is renowned for his work on relativity and the photoelectric effect. His contributions revolutionized our understanding of the universe and had a profound impact on modern physics. more

“Arnold Sommerfeld generalized Bohr's model to include elliptical orbits in three dimensions. He treated the problem relativistically (using Einstein's formula for the increase of mass with velocity), ... According to historian Max Jammer, this success of Sommerfeld's fine-structure formula "served also as an indirect confirmation of Einstein's relativistic formula for the velocity dependence of inertia mass.”

Physics History Of Science Fine Structure Constant

Book:Making 20th Century Science: How Theories Became Knowledge

Source: Making 20th Century Science: How Theories Became Knowledge

“We have one real candidate for changing the rules; this is string theory. In string theory the one-dimensional trajectory of a particle in spacetime is replaced by a two-dimensional orbit of a string. Such strings can be of any size, but under ordinary circumstances they are quite tiny, ... a value determined by comparing the predictions of the theory for Newton's constant and the fine structure constant to experimental values.”

Physics String Theory Fine Structure Constant Constants Of Nature

Author:Edward Witten

“Calculate the fine structure constant from first principles.”

Physics Quantum Mechanics Fine Structure Constant

Book:Introduction to Quantum Mechanics

Source: Introduction to Quantum Mechanics

“As I regard physics and psychology as complementary types of examination, I am certain that there is an equally valid way that must lead the psychologist 'from behind' (namely, through investigating the archetypes) into the world of physics. As an example of background physics, I shall discuss a motif that occurs regularly in my dreams - namely, fine structure, in particular doublet structure of spectral lines and the separation of a chemical element into two isotopes.”