Mechanics Quotes - page 10

I... interpret mechanics as a theory of relations between variables, rather than the theory of the evolution of variables in time. (Carlo Rovelli)
Ironically, conventional quantum mechanics itself involves a vast expansion of physical reality, which may be enough to avoid Einstein Insanity. The equations of quantum dynamics allow physicists to predict the future values of the wave function, given its present value. According to the Schrödinger equation, the wave function evolves in a completely predictable way. But in practice we never have access to the full wave function, either at present or in the future, so this "predictability” is unattainable. If the wave function provides the ultimate description of reality - a controversial issue! View quote
Frank Wilczek
Instead of explaining the sober facts of mechanics and electricity, I want to say a few words about the debt which we owe to youth; and with your permission I shall consider you as representing here not only the academic youth of Sweden nor even of Europe but also of America. View quote
Felix Bloch
It seems to me that in understanding MOND and its fundamentals we have only scratched the surface. If the developments of quantum mechanics and relativity are any lesson here, departures of such magnitude from long- and well-tested physics may bring with them completely new concepts, not summarized by mere modifications of the governing actions or the equations of motion. MOND may also turn out to bring in concepts that are presently beyond our ken. View quote
Mordehai Milgrom
It is not enough to tackle the mechanics of terror organizations. We must also tackle the situations that create terrorists. We desperately need to address the frustration, the loss and the despair that drive some to these actions. View quote
King Hussein
The decay of our culture since 1941 can be measured by the fact that academic historians today are no longer interested in historical truth or interested in it only marginally; what really interests them is jobs. They match the anthropologists and geneticists who, with practiced effrontery, can say that all races are equal and there is no difference between them. There are now 'scientists' who boast they are so versatile they can prove anything, for a suitable fee, while others abuse spectroscopes to prove that a painted rag is a 'Holy Shroud,' or use quantum mechanics to prove that the old Jew-god converted mud into Adam. 'Truth' is whatever pays the most. The academicians have conformed to what is now the American ethic. Whether any nation so decadent and depraved can or should survive is a question I am unwilling to consider. View quote
Revilo P. Oliver
The mysterious universe cannot be explained from one angle alone; instead it requires multiple paradigms including Newtonian physics, Einstein's Theory of Relativity, and Quantum Mechanics. View quote
Newton Lee
No prior knowledge regarding quantum mechanics is expected, so one can find a really good introduction covering quantum states, measurement, entanglement together with other aspects of quantum networking, including such issues as security, teleportation, and channel swapping. View quote
Stephen F Bush
While many questions about quantum mechanics are still not fully resolved, there is no point in introducing needless mystification where in fact no problem exists. View quote
Murray Gell-Mann
Now, what that means is that there is fundamental indeterminacy from quantum mechanics, but besides that there are other sources of effective indeterminacy. View quote
Murray Gell-Mann
While many questions about quantum mechanics are still not fully resolved, there is no point in introducing needless mystification where in fact no problem exists. Yet a great deal of recent writing about quantum mechanics has done just that. (Murray Gell-Mann)
On further reflection, I now think that in arguing his case Bell exaggerated, oversimplified the historical development of both classical electrodynamics and quantum mechanics, and as a result arrived at a definition of "understanding" that may be too rigid in that it reflects a presumption - a prejudice, if you will - as to what constitutes physical reality. View quote
Kurt Gottfried
By taking issue with Bell on this score, I am not saying that I am satisfied with my understanding of quantum mechanics. I share Feynman's belief that no one really understands quantum mechanics. But we should not exaggerate our embarrassment; it is ample as it stands. In any event, I agree with Bell that the foundations continue to merit the closest scrutiny. View quote
Kurt Gottfried
That classical theory had catastrophic implications for the constitution of matter was barely appreciated by Planck and others at the turn of the century, and played no substantial role in the development of quantum theory until Bohr's work 13 years later. The lesson that could be drawn from this, and also from the development of general relativity, is that a crisis will only become creative if it is formulated in a mathematically precise manner. This conclusion has an echo in Bell's insistence on having quantum mechanics "fully formulated in mathematical terms, with nothing left to the discretion of the theoretical physicist", but what it really calls for is a critique of the "orthodox" theory fully formulated in mathematical terms with nothing left to the discretion of the critic. View quote
Kurt Gottfried
In modern times the belief that the ultimate explanation of all things was to be found in Newtonian mechanics was an adumbration of the truth that all science, as it grows towards perfection, becomes mathematical in its ideas. View quote
Alfred North Whitehead
It seems to me that we must make a distinction between what is "objective" and what is "measurable" in discussing the question of physical reality, according to quantum mechanics. View quote
Roger Penrose
It seems to me that we must make a distinction between what is "objective" and what is "measurable" in discussing the question of physical reality, according to quantum mechanics. The state-vector of a system is, indeed, not measurable, in the sense that one cannot ascertain, by experiments performed on the system, precisely (up to proportionality) what the state is; but the state-vector does seem to be (again up to proportionality) a completely objective property of the system, being completely characterized by the results it must give to experiments that one might perform. View quote
Roger Penrose
Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle. String theory does so again because a point particle is replaced by a string, which is more spread out. View quote
Edward Witten
Quantum mechanics... developed through some rather messy, complicated processes stimulated by experiment. While it's a very rich and wonderful theory, it doesn't quite have the conceptual foundation of general relativity. View quote
Edward Witten
The most important single thing about string theory is that it's a highly mathematical theory, and the mathematics holds together in a very tight and consistent way. It contains in its basic structure both quantum mechanics and the theory of gravity. That's big news. View quote
Leonard Susskind
Third, this allowed us to propose what we called the cosmological interpretation of quantum mechanics. Here we interpret the wavefunction for an object as describing not some funky imaginary ensemble of possibilities for what the object might be doing, but rather the actual spatial collection of identical copies of the object that exist in our infinite space. Moreover, quantum uncertainty that you experience simply reflects your inability to self-locate in the Level I multiverse, i. e., to know which of your infinitely many copies throughout space is the one having your subjective perceptions. (Max Tegmark)
If you start any large theory, such as quantum mechanics, plate tectonics, evolution, it takes about 40 years for mainstream science to come around. Gaia has been going for only 30 years or so. View quote
James Lovelock
I was 17 and just learning what high fidelity was, what good sound was, and learning the mechanics of tape machines. It was a real education, going right from the consumer end to the record factory. View quote
Alan Parsons
Chance is an element of life. What I try to do is study what I call the mechanics of reality as carefully as I can. View quote
Paul Auster
The objects of instruction in purely scientific mechanics and physics are, first, to produce in the student that improvement of the understanding which results from the cultivation of natural knowledge, and that elevation of mind which flows from the contemplation of the order of the universe. View quote
William John Macquorn Rankine