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Can quantum mechanics represent the fact that an electron finds itself approximately in a given place and that it moves approximately with a given velocity, and can we make these approximations so close that they do not cause experimental difficulties?

Werner Heisenberg

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Werner Heisenberg
Age: 74 †
Born: 1901
Born: December 5
Died: 1976
Died: February 1
Academic
Mathematician
Mountaineer
Non-Fiction Writer
Nuclear Physicist
Physicist
Theoretical Physicist
University Teacher
Kreisfreie Stadt Würzburg
Werner Karl Heisenberg
Heisenberg
Werner K. Heisenberg
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...separation of the observer from the phenomenon to be observed is no longer possible.
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What we observe is not nature itself, but nature exposed to our method of questioning.
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Even for the physicist the description in plain language will be a criterion of the degree of understanding that has been reached.
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After the conversations about Indian philosophy, some of the ideas of Quantum Physics that had seemed so crazy suddenly made much more sense.
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The reality we can put into words is never reality itself.
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When I meet God, I am going to ask him two questions: Why relativity ? And why turbulence ? I really believe he will have an answer for the first.
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Where no guiding ideals are left to point the way, the scale of values disappears and with it the meaning of our deeds and sufferings, and at the end can lie only negation and despair. Religion is therefore the foundation of ethics, and ethics the presupposition of life.
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The basic idea is to shove all fundamental difficulties onto the neutron and to do quantum mechanics in the nucleus.
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Nature is made in such a way as to be able to be understood. Or perhaps I should put it-more correctly-the other way around, and say that we are made in such a way as to be able to understand Nature.
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Thus, the more precisely the position is determined, the less precisely the momentum is known, and conversely.
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It seems sensible to discard all hope of observing hitherto unobservable quantities, such as the position and period of the electron... Instead it seems more reasonable to try to establish a theoretical quantum mechanics, analogous to classical mechanics, but in which only relations between observable quantities occur.
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Only a few know, how much one must know to know how little one knows.
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A consistent pursuit of classical physics forces a transformation in the very heart of that physics.
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Quantum theory provides us with a striking illustration of the fact that we can fully understand a connection though we can only speak of it in images and parables.
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