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Physics Quotes

Browse 1726 quotes about Physics.

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Physics Quotes

“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.”

PhysicsString TheoryFine Structure ConstantConstants Of Nature
Author:Edward Witten
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“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.”

PsychologyPhysicsFine Structure ConstantArchetypesAtom
Book:Atom and Archetype: The Pauli/Jung Letters 1932-58
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“At his "World of Physics" Web site, Eric W. Weisstein notes that the fine structure constant continues to fascinate numerologists, who have claimed that connections exist between alpha, the Cheops pyramid, and Stonehenge!”

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Book:A Passion for Mathematics: Numbers, Puzzles, Madness, Religion, and the Quest for Reality
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“QED [quantum electrodynamics] reduces ... "all of chemistry and most of physics," to one basic interaction, the fundamental coupling of a photon to electric charge. The strength of this coupling remains, however, as a pure number, the so-called fine-structure constant, which is a parameter of QED that QED itself is powerless to predict.”

PhysicsQuantum PhysicsFine Structure Constant
Book:Longing for the Harmonies: Themes and Variations from Modern Physics
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“Here the attention of the research workers is primarily directed to the problem of reconciling the claims of the special relativity theory with those of the quantum theory. The extraordinary advances made in this field by Dirac ... leave open the question whether it will be possible to satisfy the claims of the two theories without at the same time determining the Sommerfeld fine-structure constant.”

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Book:Physics and philosophy: the revolution in modern science
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“We can measure the fine structure constant with very great precision, but so far none of our theories has provided an explanation of its measured value. One of the aims of superstring theory is to predict this quantity precisely. Any theory that could do that would be taken very seriously indeed as a potential 'Theory of Everything'.”

PhysicsString TheoryFine Structure ConstantConstants Of Nature
Book:Impossibility: The Limits of Science and the Science of Limits
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“The theoretical determination of the fine structure constant is certainly the most important of the unsolved problems of modern physics. We believe that any regression to the ideas of classical physics (as, for instance, to the use of the classical field concept)cannot bring us nearer to this goal. To reach it, we shall, presumably, have to pay with further revolutionary changes of the fundamental concepts of physics with a still farther digression from the concepts of the classical theories.”

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Book:Writings on Physics and Philosophy
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“Following the path of earlier unificationists, one of Eddington's aims was to reduce the contingencies in the description of nature, for example, by explaining the fundamental constants of physics rather than accepting them as merely experimental data. One of these constants was the fine-structure constant ..., which entered prominently in Dirac's theory and was known to be about 1/137.”

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Book:Quantum Generations: A History of Physics in the Twentieth Century
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“I introduce the subject of fine structure with a mini-calendar of events. ... Winter 1914-15. Sommerfeld computes relativistic orbits for hydrogen-like atoms. Pashcen, aware of these studies, carefully investigates fine structures, .... January 6, 1916. Sommerfeld announces his fine structure formula, citing results to be published by Paschen in support of his answer. February 1916. Einstein to Sommerfeld: "A revelation!" March 1916. Bohr to Sommerfeld: "I do not believe ever to have read anything with more joy than your beautiful work." September 1916. Paschen publishes his work, acknowledging Sommerfeld's "indefatigable efforts.”

PhysicsFine Structure ConstantHistory Of Physics
Book:Inward Bound: Of Matter and Forces in the Physical World
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“The bridge between the electron and the other elementary particles is provided by the fine structure constant, a ~ 1/137, as manifested in the factor-of-137 spacings between the classical electron radius, electron Compton radius, and Bohr orbit radius. ... An a-quantized mass-generation grid extends accurately from the electron all the way to the top quark t, and leads to a corresponding a-quantized particle lifetime grid.”

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Book:The Enigmatic Electron: A Doorway to Particle Masses
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“As Sommerfeld said in his famous text "Spectral Lines and Atomic Constitution," on which a generation of physicists learned the subject, "In the fine structure constant e is the representative of the electron theory, h the appropriate representative of the quantum theory, c comes from relativity and characterizes it in contrast to classical theory.”

PhysicsHistory Of ScienceFine Structure ConstantConstants Of Nature
Book:From X-Rays to Quarks: Modern Physicists and Their Discoveries
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“In the context of physics, 137 is equal to the integer part of the inverse of the fine structure constant ... The fine structure constant α is the key to the physicist’s quest for a Grand Unified Theory ... The number 137 has intrigued numerous prominent theoretical physicists ... All told, we believe that it is much easier, and more motivating, to remember a number that has deep significance in numerous disciplines, ... with the following terse ode to 137: Bethe was mischievous with 137 Bohr was intrigued by 137 Born was mystified by 137 Fermi was frisky with 137 Feynman was mesmerized by 137 Heisenberg was fascinated by 137 Lederman was enchanted by 137 Pauli was consumed by 137 Turing was matched by 137”

PhysicsFine Structure Constant
Book:Nonlinear Dynamics Perspective Of Wolfram's New Kind Of Science, A (Volume Vi)
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“Quite obviously, a theoretical determination of the numerical value of α would signify great progress in our understanding of fundamental interactions. Many physicists have tried to find it, but without significant success to this day. Richard Feynman, the theory wizard of Caltech in Pasadena, once suggested that every one of his theory colleagues should write on the blackboard in his office: 137 -- how shamefully little we understand!”

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Book:ELEMENTARY PARTICLES: BUILDING BLOCKS OF MATTER
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“There is only one universal language, which is the language of numbers and proportions that are so striking and stunningly built into the Great Pyramid and to which our current science has no appropriate response. We can no longer ignore that this ancient civilization was aware of our units used in modern mathematics and physics and were even aware of our metric system. Our metric system originating in the eighteenth century, designed and implemented by a committee of mathematicians and physicists commissioned by the French revolutionary government.”

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Book:The Great Pyramid of Giza: A Modern View on Ancient Knowledge
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“The fine-structure constant is ubiquitous throughout physics. I’ve already noted its connection to the electromagnetic interaction. In atomic physics, the binding energy, fine-structure splitting, and Lamb shift are all proportional to powers of α. In condensed matter physics, α characterizes Josephson junction oscillations and quantum Hall resistance steps. In addition, α is an important component of our system of fundamental constants. [Physics Today]”

SciencePhysicsHistory Of ScienceFine Structure ConstantFundamental Constants
Author:Gerald Gabrielse
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“Today alpha equals 1/137.0359 or so. Regardless, its value makes the periodic table possible. It allows atoms to exist and also allows them to react with sufficient vigor to form compounds, since electrons neither roam too freely from their nuclei nor cling too closely. This just-right balance has led many scientists to conclude that the universe couldn’t have hit upon its fine structure constant by accident.”

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Book:The Disappearing Spoon: And Other True Tales of Madness, Love, and the History of the World from the Periodic Table of the Elements
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“Realizing its fundamental importance in understanding spectral lines, in atomic physics and in the theory of how light and electrons interact, quantum electrodynamics, Pauli and Heisenberg were determined to derive it from quantum theory rather than introducing it from the start. They believed that if they could find a version of quantum electrodynamics capable of producing the fine structure constant, it would not contain the infinities that marred their theories.”

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Book:Deciphering the Cosmic Number: The Strange Friendship of Wolfgang Pauli and Carl Jung
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“Alpha sets the scale of nature -- the size of atoms and all things made of them, the intensity and colors of light, the strength of magnetism, and the metabolic rate of life itself. It controls everything that we see. ... In 137, apparently, science had found Nature's PIN Code.”

SciencePhysicsFine Structure Constant
Book:The Infinity Puzzle: Quantum Field Theory and the Hunt for an Orderly Universe
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“Let us begin with the fine-structure constant. ... The fine-structure constant is really the ratio of two natural units or atoms of action. ... We obtain action when we multiply energy by time. ... We are challenged to find a unified theory of electric particles and radiation in which the electrostatic type of action and the quantum type of action are traced to their source.”

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Book:New Pathways In Science
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“Through Jung [Pauli] became very interested in various kinds of mysticism, including Jewish mysticism. This led Pauli to develop a friendship with Gershom Scholem, the world's greatest authority in that field and in the Cabala, .... On one occasion Scholem asked me to tell him about unsolved problems in modern physics. .... When I mentioned this number --137-- to Scholem, .... He told me that in Hebrew .... The number corresponding to the word 'cabala' happens to be 137.”

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Book:The joy of insight: passions of a physicist
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“For [Wolfgang] Pauli the central problem of electrodynamics was the field concept and the existence of an elementary charge which is expressible by the fine-structure constant ... 1/137. This fundamental pure number had greatly fascinated Pauli, .... For Pauli the explanation of the number 137 was the test of a successful field theory, a test which no theory has passed up to now.”

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Book:Pauli Lectures on Physics: Volume 1, Electrodynamics
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““I could use the fresh air. I think that put my brain to sleep.” She pointed at the text as if it was a piece of rotten meat. “Physics?” I said. “You must need a more advanced text.” “No, it’s just boring.” I picked the book up and double checked the title, to make sure I hadn’t misidentified the subject. “Boring?” I said. “How can physics be …?” I looked up to see she’d already left the room. Simon pointed at the text, grinned and faked a yawn. “Hold on,” I said, striding after her. “Physics is not boring. Maybe you just need me to explain it better. Chloe? Chloe!””

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Book:Belonging
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“Truly to realize the ambitions of a science of mind does not solely involve learning about such issues as how we know, perceive and solve problems; it involves finding out tow hat extent the world outside us is knowable by us, and indeed prescribing the limits of inquiry for disciplines like Physics which claim to afford knowledge of the external physical world.”

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Book:The Search for Mind: Second Edition
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“Time dilation occurs at relativistic speeds, in the presence of intense gravitational fields, and while waiting for a webpage to load.”

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Book:ServiceNow Development Handbook - 4th Edition: A compendium of ServiceNow "NOW" platform development and architecture pro-tips, guidelines, and best practices
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“Leibniz’s brilliant monadic system naturally gives rise to calculus (the main tool of mathematics and science). But it was not Leibniz who linked the energy of monads to waves – that was done later following the work of the French genius Jean Baptiste Joseph Fourier on Fourier series and Fourier transforms. Nevertheless, Leibniz’s idea of energy originating from countless mathematical points and flowing across a plenum is indeed the first glimpse in the modern age of “field theory” that now underpins contemporary physics. Leibniz was centuries ahead of his time. Leibniz’s system is entirely mathematical. It brings mathematics to life. The infinite collection of monads constitutes an evolving cosmic organism, unfolding according to mathematical laws.”

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Book:The Last Man Who Knew Everything
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“What we are proposing,' Alicia said, 'is that the laws of physics are such that causality violation is subject to a form of version control, one that prevents a forking of history. That instead of causality violation creating an alternate universe, one version of history is outright overwritten by another. One past is replaced with another future. Which means that the memories of the past of the people in that future are replaced with memories of a different past.' Carson interrupted. 'Including the memories of any—' 'Purely hypothetical—' '—time travelers.' 'So take our time traveler from the traditional story,' Carson continued. 'He leaves his utopian future for the past. He kills the butterfly. The Magna Carta is never written. He returns to the dystopian future that his misstep created. But he doesn't see it as a dystopia: he sees it as home, the world he grew up in, the world he left to go back in time. Because he doesn't remember that first future, and has no other world to which he can compare this one. Maybe he even sees it as a utopia. Maybe everyone does. Maybe everyone in this dark place believes that they live in the best of all possible worlds.”

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Book:Version Control
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“The most striking impression was that of an overwhelming bright light. I had seen under similar conditions the explosion of a large amount—100 tons—of normal explosives in the April test, and I was flabbergasted by the new spectacle. We saw the whole sky flash with unbelievable brightness in spite of the very dark glasses we wore. Our eyes were accommodated to darkness, and thus even if the sudden light had been only normal daylight it would have appeared to us much brighter than usual, but we know from measurements that the flash of the bomb was many times brighter than the sun. In a fraction of a second, at our distance, one received enough light to produce a sunburn. I was near Fermi at the time of the explosion, but I do not remember what we said, if anything. I believe that for a moment I thought the explosion might set fire to the atmosphere and thus finish the earth, even though I knew that this was not possible.”

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Book:Enrico Fermi, Physicist
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“The reason Dick's physics was so hard for ordinary people to grasp was that he did not use equations. The usual theoretical physics was done since the time of Newton was to begin by writing down some equations and then to work hard calculating solutions of the equations. This was the way Hans and Oppy and Julian Schwinger did physics. Dick just wrote down the solutions out of his head without ever writing down the equations. He had a physical picture of the way things happen, and the picture gave him the solutions directly with a minimum of calculation. It was no wonder that people who had spent their lives solving equations were baffled by him. Their minds were analytical; his was pictorial.”

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Author:Freeman Dyson
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“When left alone, quantum particles behave as multiple images of themselves (as waves, really), simultaneously moving through all possible paths in space and time. Now, again, why do we not experience this multitude around ourselves? Is it because we are probing things around us all the time? Why do all experiments that involve, say, the position of a particle make the particle suddenly be somewhere rather than everywhere? No one knows. Before you probe it, a particle is a wave of possibilities. After you've probed it, it is somewhere, and subsequently it is somewhere for ever, rather than everywhere again. Strange, that. Nothing, within the laws of quantum physics, allows for such a collapse to happen. It is an experimental mystery and a theoretical one. Quantum physics stipulates that whenever something is there, it can transform into something else, of course, but it cannot disappear. And since quantum physics allows for multiple possibilities simultaneously, these possibilities should then keep existing, even after a measurement is made. But they don't. Every possibility but one vanishes. We do not see any of the others around us. We live in a classical world, where everything is based on quantum laws but nothing resembles the quantum world.”

LawTimeSpaceKnowledgePositionExperienceDisappearPhysicsLiveQuantumMultiplePossibilitiesParticlesKnowPossibleMeasurementQuantum PhysicsLeft AloneLawsWavesSomethingTransformPathsImagesProbingSomewhereEverywhereClassicalProbeSimultaneouslyVanishes
Book:The Universe in Your Hand: A Journey Through Space, Time, and Beyond
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“In the heaven of the great god Indra is said to be a vast and shimmering net, finer than a spider’s web, stretching to the outermost reaches of space. Strung at the each intersection of its diaphanous threads is a reflecting pearl. Since the net is infinite in extent, the pearls are infinite in number. In the glistening surface of each pearl are reflected all the other pearls, even those in the furthest corners of the heavens. In each reflection, again are reflected all the infinitely many other pearls, so that by this process, reflections of reflections continue without end.”

MathematicsPhysicsGeometryFractals
Author:David Mumford, Caroline Series, David Wright
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“Ich selbst spiele nie Billard, [...],aber ich weiß, dass man den Ball hoch oder tief, rechts oder links nehmen kann; man kann den zweiten Ball voll treffen oder streifen; man kann stark oder schwach stoßen; die Fälsche stärker oder schwächer wählen; und sicher gibt es noch viele solcher Möglichkeiten. Ich kann mir nun jedes dieser Elemente beliebig abgestuft denken, so gibt es also nahezu unendlich viele Kombinationsmöglichkeiten. Wollte ich sie theoretisch ermitteln, so müßte ich außer den Gesetzen der Mathematik und der Mechanik starrer Körper auch die der Elastizitätslehre berücksichtigen; ich müßte die Koeffizienten des Materials kennen; den Temperatureinfluß; ich müßte die feinsten Maßmethoden für die Koordination und Abstufung meiner motorischen Impulse besitzen; meine Distanzschätzung müßte genau wie ein Nonius sein; mein kombinatorisches Vermögen schneller und sicherer als ein Rechenschieber; zu schweigen von der Fehlerrechnung, die Streungsbreite und dem Umstand, daß das zu erreichende Ziel der richtigen Koinzidenz der beiden Bälle selbst kein eindeutiges ist, sondern eine um einen Mittelwert gelagerte Gruppe von eben noch genügenden Tatbeständen darstellt.”

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Book:the Man Without Qualities
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