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Vor einem Tag · If you rank according to the achievements of physics, Yang Zhenning should be able to rank fifth, the top four are classical mechanics, special and general relativity, electromagnetism, quantum mechanics. If you rank according to scientists, since there are too many founders of quantum mechanics, Yang Zhenning can only rank out of the dozen.
Vor 5 Tagen · His latest book, 'Mr. Einstein’s Secretary' is ‘historical fiction’ set around the 1920s to 1940s. So a few fictional characters meet a set of real characters at an important period in history and a story plays out from there. Our heroine is Hanna Fisher; a fictional character who escapes Berlin in 1919 after the death of her mother and ...
Vor 3 Tagen · Newton's laws of motion are three physical laws that describe the relationship between the motion of an object and the forces acting on it. These laws, which provide the basis for Newtonian mechanics, can be paraphrased as follows: A body remains at rest, or in motion at a constant speed in a straight line, except insofar as it is acted upon by ...
Vor 2 Tagen · Albert Einstein (* 14. März 1879 in Ulm; † 18. April 1955 in Princeton, New Jersey) war ein schweizerisch - US-amerikanischer theoretischer Physiker deutscher Herkunft. Der Wissenschaftler jüdischer Abstammung hatte bis 1896 die württembergische Staatsbürgerschaft, ab 1901 die Schweizer Staatsbürgerschaft und ab 1940 zusätzlich die US ...
Vor 5 Tagen · Albert Einstein: Einstein is undoubtedly one of the world’s most famous scientists. He earned worldwide fame for the development of the general theory of relativity and for winning a Nobel Prize in 1921 for his discovery of the law of the photoelectric effect. He is best known for his mass-energy equivalence formula,
Vor 4 Tagen · 1910s. Einstein's 1911 argument for gravitational redshift. 1911 – Albert Einstein explains the need to replace both special relativity and Newton's theory of gravity; he realizes that the principle of equivalence only holds locally, not globally. [42] 1915-16 – Albert Einstein completes his general theory of relativity.
Vor 4 Tagen · The Planck constant, or Planck's constant, denoted by , [1] is a fundamental physical constant [1] of foundational importance in quantum mechanics: a photon 's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle momentum.
