Principle Of Physics Quotes & Sayings

I want to build a billion tiny factories, models of each other, which are manufacturing simultaneously ... The principles of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom. It is not an attempt to violate any laws; it is something, in principle, that can be done; but in practice, it has not been done because we are too big. — Richard Feynman

In short, the idea dawns that the one universal principle which possibly ... between force and structure, the embodiment of the Principle of Least Action and the (unknown) force, which in mathematics is known as the attractor which pulls ... in the direction of the most optimal and relatively stable self-organized criticality, could very well be the Golden Ratio dynamic. the universal principle which as the balance between finiteness and infinity, stability and flexibility underlies self-similar fractal forms emerging at the 'edge of chaos' indeed seems to be the Golden Ratio Spiral. — Marja De Vries

Nature is not embarrassed by difficulties of analysis. She avoids complication only in means. Nature seems to be proposed to do much with little: it is a principle that the development of physics constantly supports by new evidence. — Jean Fresnel

Theorists of journalism have long noted parallels to Heisenberg's uncertainty principle in physics: by reporting on something, one subtly but irrevocably changes it. — Ben Yagoda

My target is a comprehensive, speculative world picture that is reached by extrapolation from some of the discoveries of biology, chemistry, and physics
a particular naturalistic Weltanschauung that postulates a hierarchical relation among the subjects of those sciences, and the completeness in principle of an explanation of everything in the universe through their unification. Such a world view is not a necessary condition of the practice of any of those sciences, and its acceptance or nonacceptance would have no effect on most scientific research. — Thomas Nagel

There is a terrible similarity between the principles of Fascism and those of contemporary physics. Fascism has rejected the concept of a separate individuality, the concept of 'a man', and operates only with vast aggregates. Contemporary physics speaks of the greater or lesser probability of occurrences within this or that aggregate of individual particles. And are not the terrible mechanics of Fascism founded on the principle of quantum politics, of political probability? — Vasily Grossman

The power of the deductive network produced in physics has been illustrated in a delightful article by Victor F. Weisskopf. He begins by taking the magnitudes of six physical constants known by measurement: the mass of the proton, the mass and electric charge of the electron, the light velocity, Newton's gravitational constant, and the quantum of action of Planck.

He adds three of four fundamental laws (e.g., de Broglie's relations connecting particle momentum and particle energy with the wavelength and frequency, and the Pauli exclusion principle), and shows that one can then derive a host of different, apparently quite unconnected, facts that happen to be known to us by observation separately .... — Gerald Holton

conformed to the principle of least action, a foundation of physics that holds that light or any object moving between two points should follow the easiest path.3 Planck's paper not only contributed to the development of relativity theory; it also helped to legitimize it among other physicists. — Walter Isaacson

Physicists often quote from T. H. White's epic novel The Once and Future King , where a society of ants declares, 'Everything not forbidden is compulsory.' In other words, if there isn't a basic principle of physics forbidding time travel, then time travel is necessarily a physical possibility. (The reason for this is the uncertainty principle. Unless something is forbidden, quantum effects and fluctuations will eventually make it possible if we wait long enough. Thus, unless there is a law forbidding it, it will eventually occur.) — Michio Kaku

Einstein had, for the first time connected new and measurable consequences to statistical physics. That might sound like a largely technical achievement, but on the contrary, it represented the triumph of a great principle: that much of the order we percieve in nature belies an invisible underlying disorder and hence can be understood only through the rules of randomness. — Leonard Mlodinow

...in principle, one can predict everything in the universe solely from physical laws. Thus, the long-standing 'first cause' problem intrinsic in cosmology has been finally dispelled. — Li Zhi Fang

While the Copernican principle comes with no guarantees that it will forever guide us to cosmic truths, it's worked quite well so far: not only is Earth not in the center of the solar system, but the solar system is not in the center of the Milky Way galaxy, the Milky Way galaxy is not in the center of the universe, and it may come to pass that our universe is just one of many that comprise a multiverse. And in case you're one of those people who thinks that the edge may be a special place, we are not at the edge of anything either. — Neil DeGrasse Tyson

The first principle of value that we need to rediscover is this: that all reality hinges on moral foundations. In other words, that this is a moral universe, and that there are moral laws of the universe just as abiding as the physical laws. (from "Rediscovering Lost Values") — Martin Luther King Jr.

In everything continuous and divisible, it is possible to grasp the more, the less, and the equal, and these either in reference to the thing itself, or in relation to us. — Aristotle.

Oh, the laws of physics and of logic ... the number system ... the principle of algebraic substitution. These are ghosts. We just believe in them so thoroughly they seem real. — Robert M. Pirsig

Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle. — Edward Witten

The principle of vis inertiae ( ... ) seems to be identical in physics and metaphysics. It is not more true in the former, that a large body is with more difficulty set in motion than a smaller one, and that its subsequent momentum is commensurate with this difficulty, than it is, in the latter, that intellects of the vaster capacity, while more forcible, more constant, and more eventful in their movements than those of inferior grade, are yet the less readily moved, and more embarrassed, and full of hesitation in the first few steps of their progress — Edgar Allan Poe

We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation. — Richard P. Feynman

The ray of light has to know where it will ultimately end up before it can choose the direction to begin moving in"

"Fermat's principle sounds weird because it describes light's behavior in goal-oriented terms. It sounds like a commandment to a light beam: "Thou shalt minimize or maximize the time taken to reach thy destination. — Ted Chiang

There is a philosophy that says that if something is unobservable
unobservable in principle
it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism. By that standard, most of the universe has no scientific reality
it's just a figment of our imaginations. — Leonard Susskind

The unsolved problems of the physical world now seem even more formidable than those solved in the twentieth century.

Though in application it works splendidly, we do not even understand the physical meaning of quantum mechanics, much less how it might be united with general relativity.

We don't know why the dimensionless constants (ratios of masses of elementary particles, ratios of strength of gravitational to electric forces, fine structure constant, etc.) have the values they do, unless we appeal to the implausible anthropic principle, which seems like a regression to Aristotelian teleology. — Gerald Holton

The study of universal grammar is a joint venture between globetrotting theoreticians who worry about impossible grammars and laboratory experimentalists who put young children through these impossible grammars. Perhaps, as in physics, one of these days there will be a grand unified theory of universal grammar. Linguistics today is where physics was in the age of Galileo and Kepler. The collection of principles may one day be replaced by one powerful principle - perhaps just the principle of recursion. that underlies them all. Universal grammar is still waiting for its Newton and Einstein. Whatever it turns out to be, its job its to keep children on the right track to their language. — Charles Yang

the three-dimensional world of ordinary experience - the universe filled with galaxies, stars, planets, houses, boulders, and people - is a hologram, an image of reality coded on a distant two-dimensional surface. This new law of physics, known as the Holographic Principle, asserts that everything inside a region of space can be described by bits of information restricted to the boundary. — Leonard Susskind

Wheeler hopes that we can discover, within the context of physics, a principle that will enable the universe to come into existence "of its own accord." In his search for such a theory, he remarks: "No guiding principle would seem more powerful than the requirement that it should provide the universe with a way to come into being." Wheeler likened this 'self-causing' universe to a self-excited circuit in electronics. — Paul Davies

According to the anthropic principle proponents, if the universal constants (e.g. gravitation, the strong force, etc.) were just a nose-hair off, the universe as we know it would not exist; stars wouldn't form and there would be no life and no us. That supposedly makes our universe truly special. To demonstrate just how ridiculous this fine-tuning argument is, consider the fact that no measurement in physics is perfect. All of them are approximations and have margins of error. That means the universal constants, that make our universe what it is, have some wiggle room. Within that wiggle room are an infinite quantity of real numbers. Each of those real numbers could represent constants that could make a universe like ours. Since there are an infinite number of potential constants within that wiggle room, there are an infinite number of potential universes, like ours, that could have existed in lieu of ours. Thus, there is really nothing special about our universe. — G.M. Jackson

Thanks to my fortunate idea of introducing the relativity principle into physics, you (and others) now enormously overrate my scientific abilities, to the point where this makes me quite uncomfortable. — Albert Einstein

Indeed, the uncertainty principle ensures that in the nature of things physics is unable to do more than make statistical predictions. — Neil Postman

Our acceptance of an ontology is, I think, similar in principle to our acceptance of a scientific theory, say a system of physics;we adopt, at least insofar as we are reasonable, the simplest conceptual scheme into which the disordered fragments of raw experience can be fitted and arranged. — Willard Van Orman Quine

It has today occurred to me that an amplifier using semiconductors rather than vacuum is in principle possible.
[Laboratory notebook, 29 Dec 1939.] — William Shockley

For example, life itself is supposedly understandable in principle from the movements of atoms, and those atoms are made out of neutrons, protons and electrons. I must immediately say that when we state that we understand it in principle, we only mean that we think that, if we could figure everything out, we would find that there is nothing new in physics which needs to be discovered in order to understand the phenomena of life. Another — Richard Feynman

It is funny that men who are supposed to be scientific cannot get themselves to realise the basic principle of physics, that action and reaction are equal and opposite, that when you persecute people you always rouse them to be strong and stronger. — Gertrude Stein

Earlier in this century, the Heisenberg Principle established that the very act of observing a natural phenomenon can change what is being observed. Although the initial theory was limited in practice to special cases in subatomic physics, the philosophical implications were and are staggering. — Al Gore

Old Newtonian physics claimed that things have an objective reality separate from our perception of them. Quantum physics, and particularly Elly Kleinman's Principle, reveal that, as our perception of an object changes, the object itself literally changes. — Marianne Williamson

There is something stunningly narrow about how the Anthropic Principle is phrased. Yes, only certain laws and constants of nature are consistent with our kind of life. But essentially the same laws and constants are required to make a rock. So why not talk about a Universe designed so rocks could one day come to be, and strong and weak Lithic Principles? If stones could philosophize, I imagine Lithic Principles would be at the intellectual frontiers. — Carl Sagan