Quotes & Sayings About Physics Light

There is no logical staircase running from the physics of 10-28 cm. to the physics of 1028 light-years. — Norwood Russell Hanson

If the hand be held between the discharge-tube and the screen, the darker shadow of the bones is seen within the slightly dark shadow-image of the hand itself ... For brevity's sake I shall use the expression 'rays'; and to distinguish them from others of this name I shall call them 'X-rays'. — Wilhelm Conrad Rontgen

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. — Emilio Segre

And so I played, and they held their breath, as they heard the beauty of the music, so like a human voice, yet so beyond it. I drew the bow across the strings. The first notes of the Bach Sarabande sounded in the room and I felt the sound waves travel through me, through the body and guts of my cello, through the endpin and into the wood of the floorboards and through the feet of the audience and up through their skeletons to their hearts and into their brains and the music reached their brains and their hearts at the same time - for sound travels according to the laws of physics, and I saw the light behind their eyes catch fire and heard them intake breath as they felt the rush of the music take over their bodies, aethereal and corporeal combined. — Tracy Farr

The ideal of the 11th/17th century physicists was to be able to explain all physical reality in terms of the movement of atoms. This idea was extended by people like Descartes who saw the human body itself as nothing but a machine. Chemists tried to study chemical reaction in this light and reduce chemistry to a form of physics, and biologists tried to reduce their science to simply chemical reactions and then finally to the movement of physical particles. The idea of reductionsm which is innate to modern science and which was only fortified by the tehory of evolution could be described as the reduction fo the spirit to the psyche, the psyche to biological activity, life to lifeless matter and lifeless matter to purely quantitative particles or bundles of energy whose movements can be measured and quantified. — Seyyed Hossein Nasr

Let things take their natural course, they will generate their own momentum, that if you try to interfere with will only result in a crash. Physics knows what it is doing, it applies to everyday life, emotion, feeling, desire, and every thought in our tiny little minds, as much as it does to thermodynamics, gravity, nuclear force, and space & time. Don't try too hard looking for answers, you don't need to understand the wavelengths of light and refraction to awe at the beauty of a rainbow. — Graham Mitchell

How much does a beam of light weigh? — Ijosephi Lowly Worm

When it came to time travel, science and science fiction and fantasy had flip-flopped. Nobody was going to create a machine that traveled to the future or the past. Time machines might be accepted in science fiction as an enabling device to get the story moving, but they're like faster-than-light space ships-- neither one is going to happen any time soon, not with any technology we know how to implement.
The guys who had it figured were the fantasists, Dennis. The Finneys and the Mathesons and the Ellisons and the Serlings. No machines and no advanced physics, at least not most of the time. Just an overpowering desire. Just need and longing and pain and regret and the right talisman or the right surroundings. Put the right person in the right place, and perhaps with the right objects, and the potential for time travel is there. — Tony Rabig

I'll be looking for you, Will, every moment, every single moment. And when we do find each other again, we'll cling together so tight that nothing and no one'll ever tear us apart. Every atom of me and every atom of you ... We'll live in birds and flowers and dragonflies and pine trees and in clouds and in those little specks of light you see floating in sunbeams ... And when they use our atoms to make new lives, they wont' just be able to take one, they'll have to take two, one of you and one of me, we'll be joined so tight ... — Philip Pullman

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

In our civilization, there are permanent forms which are part of every epoch and every culture. They are not especially difficult to detect. A minimal knowledge of physics, astrophysics, and perhaps mathematics, brings to light certain patterns that make these subjects easier to understand. It is striking to see the extreme similarity between these scientific propositions and the forms that recur in all times, places and civilizations. — Philippe Starck

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

Physics is the science of all the tremendously powerful invisibilities - of magnetism, electricity, gravity, light, sound, cosmic rays. Physics is the science of the mysteries of the universe. How could anyone think it dull? — Dick Francis

For Bohr the theory came first, then the philosophical position, the interpretation constructed to make sense of what the theory says about reality. Einstein knew that it was dangerous to build a philosophical worldview on the foundation of any scientific theory. If the theory is found wanting in the light of new experimental evidence, then the philosophical position it supports collapses with it. 'it is basic for physics that one assumes a real world existing independently from any act of perception', said Einstein. 'But this we do not know'. — Manjit Kumar

There can never be a clock at the center of the Universe to which everyone can set their watches. Your entire life can be the blink of an eye to an alien who leaves Earth traveling close to the speed of light, then returns an hour later to find that you have been dead for centuries. — Clifford A. Pickover

RE: Kindle, iPad, et cetera: For a researcher, these new ways of accessing information are just extraordinary. I thing it introduces the possibility of a new standard of cognitive exactness and precision. ~ Rebecca Goldstein, author of Properties of Light: A Novel of Love, Betrayal and Quantum Physics. — Leah Price

The only thing known to go faster than ordinary light is monarchy, according to the philosopher Ly Tin Wheedle. He reasoned like this: you can't have more than one king, and tradition demands that there is no gap between kings, so when a king dies the succession must therefore pass to the heir instantaneously. Presumably, he said, there must be some elementary particles
kingons, or possibly queons
that do this job, but of course succession sometimes fails if, in mid-flight, they strike an anti-particle, or republicon. His ambitious plans to use his discovery to send messages, involving the careful torturing of a small king in order to modulate the signal, were never fully expanded because, at that point, the bar closed. — Terry Pratchett

Fine Structure Constant: Fundamental numerical constant of atomic physics and quantum electrodynamics, defined as the square of the charge of the electron divided by the product of Planck's constant and the speed of light. — Steven Weinberg

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

Someday someone will write a pathology of experimental physics and bring to light all those swindles which subvert our reason, beguile our judgement and, what is worse, stand in the way of any practical progress. The phenomena must be freed once and for all from their grim torture chamber of empiricism, mechanism, and dogmatism; they must be brought before the jury of man's common sense. — Johann Wolfgang Von Goethe

[Max Planck] was one of the finest people I have ever known ... but he really didn't understand physics, [because] during the eclipse of 1919 he stayed up all night to see if it would confirm the bending of light by the gravitational field. If he had really understood [general relativity], he would have gone to bed the way I did — Albert Einstein

Light takes darkness vanish and worlds reappear. Light opens each day with a blaring overture, then throws its wands to earth and casts diamonds on lakes and oceans. Each night, lights tricks make the stars seem alive. — Bruce Watson

A common refrain among theoretical physicists is that the fields of quantum field theory are the "real" entities while the particles they represent are images like the shadows in Plato's cave. As one who did experimental particle physics for forty years before retiring in 2000, I say, "Wait a minute!" No one has ever measured a quantum field, or even a classical electric, magnetic, or gravitational field. No one has ever measured a wavicle, the term used to describe the so-called wavelike properties of a particle. You always measure localized particles. The interference patterns you observe in sending light through slits are not seen in the measurements of individual photons, just in the statistical distributions of an ensemble of many photons. To me, it is the particle that comes closest to reality. But then, I cannot prove it is real either. — Victor J. Stenger

Recent scientific experiments in quantum physics have shed enormous light on how this world might function and have confirmed beliefs by early quantum physicists that light is not the fastest moving particle. That information at the quantum level passes instantaneously, and thus is infinitely faster. — Newton Fortuin

[The ceremonial key to the city of Padua] is engraved with a quote from Galileo that is also on display at the physics department of the university...'I deem it of more value to find out a truth about however light a matter than to engage in long disputes about the greatest questions without achieving any truth. — Lisa Randall

The discovery of radioactivity created a momentary chaos in chemistry and physics; but it soon led to a fuller interpretation of the old ideas. It dispersed many difficulties, harmonized many discords, and yea, more! It shewed the substance of Universe as a simplicity of Light and Life, manners to compose atoms, themselves capable of deeper self-realization through fresh complexities and organizations, each with its own peculiar powers and pleasures, each pursuing its path through the world where all things are possible. — Aleister Crowley

Physicists have yet to find anything capable of exceeding our known speed of light. The Tao cannot be named, and so I say there is one thing that out-paces all things: we call it "thought." I can fill a room a with light before I'm anywhere near the switch. — Laurie Perez

I got bored with the topic; I felt this was 19th century physics. I was wondering if there was still something profound that could be made with light microscopy. So I saw that the diffraction barrier was the only important problem that had been left over. — Stefan Hell

Sometimes I wonder if my heart is like a black hole--it's so dense that there's no room for light, but that doesn't mean it can't still suck me in. — Jasmine Warga

Light is the only connection we have with the Universe beyond our solar system, and the only connection our ancestors had with anything beyond Earth. Follow the light and we can journey from the confines of our planet to other worlds that orbit the Sun without ever dreaming of spacecraft. To look up is to look back in time, because the ancient beams of light are messengers from the Universe's distant past. — Brian Cox

Science began with a gadget and a trick. The gadget was the wheel; the trick was fire. We have come a long way from the two-wheel cart to the round-the-world transport plane, or from the sparking flint to man-made nuclear fission. Yet I wonder whether the inhabitants of Hiroshima were more aware of the evolution of science than ancient man facing an on-storming battle chariot.
It isn't physics that will make this a better life, nor chemistry, nor sociology. Physics may be used to atom-bomb a nation and chemistry may be used to poison a city and sociology has been used to drive people and classes against classes. Science is only an instrument, no more than a stick or fire or water that can be used to lean on or light or refresh, and also can be used to flail or burn or drown. Knowledge without morals is a beast on the loose. — Dagobert D. Runes

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. — Frank Close

One of the various theories proposed to explain the negative result of the famous Michelson-Morley experiment with light waves (conceived to measure the absolute space), was based on the ballistic hypothesis, i.e. on postulating that the speed of light predicted by Maxwell's equations was not given as relative to the medium but as relative to the transmitter (firearm). Had that been the case, the experiment negative results would have not caused such perplexity and frustration (as we shall see in forthcoming sections). — Felix Alba-Juez

When Galileo made his astonishing discovery of mountains on the moon, his telescope didn't actually have enough magnifying power to support that finding. Instead, he recognized the zigzag pattern separating the light and dark areas of the moon. Other astronomers were looking through similar telescopes, but only Galileo "was able to appreciate the implications of the dark and light regions," Simonton notes. He had the necessary depth of experience in physics and astronomy, but also breadth of experience in painting and drawing. Thanks to artistic training in a technique called chiaroscuro, which focuses on representations of light and shade, Galileo was able to detect mountains where others did not. — Adam M. Grant

Light brings us the news of the Universe. — William Henry Bragg

I was working with a Crookes tube covered by a shield of black cardboard. A piece of barium platino-cyanide paper lay on the bench there. I had been passing a current through the tube, and I noticed a peculiar black line across the paper ...
The effect was one which could only be produced in ordinary parlance by the passage of light. No light could come from the tube because the shield which covered it was impervious to any light known even that of the electric arc ...
I did not think I investigated ...
I assumed that the effect must have come from the tube since its character indicated that it could come from nowhere else ... It seemed at first a new kind of invisible light. It was clearly something new something unrecorded ...
There is much to do, and I am busy, very busy.
[Describing to a journalist the discovery of X-rays that he had made on 8 Nov 1895.] — Wilhelm Conrad Rontgen

There's been a greater awareness among people, especially geeks, that the laws of physics don't allow that much wiggle room in terms of things like faster-than-light travel, time travel, sending people to other planets. It's harder than we were aware a few decades ago. I think there used to be this widespread imagination, this idea that we'd eventually just hop in a rocket and go to Mars. — Charlie Jane Anders

If Feynman could see beauty as the inspiration for the theory of the rainbow, and if an electron could behave like a wave, and light like a particle, then the little contradiction of Leonard flitting among different subfields of physics, or even among varied careers, would not shake the universe. — Anonymous

Today's particle physics describe light as a crumple in space, and we may have deformed space in such a way that they noticed something peculiar - and they had the ability to investigate it. — Dwight Schultz

Mathematical theories have sometimes been used to predict phenomena that were not confirmed until years later. For example, Maxwell's equations, named after physicist James Clerk Maxwell, predicted radio waves. Einstein's field equations suggested that gravity would bend light and that the universe is expanding. Physicist Paul Dirac once noted that the abstract mathematics we study now gives us a glimpse of physics in the future. In fact, his equations predicted the existence of antimatter, which was subsequently discovered. Similarly, mathematician Nikolai Lobachevsky said that "there is no branch of mathematics, however abstract, which may not someday be applied to the phenomena of the real world. — Clifford A. Pickover

Theology, philosophy, metaphysics, and quantum physics are merely ways for God to have his smart people believe in him — Jeremy Aldana

It must have appeared almost as improbable to the earlier geologists, that the laws of earthquakes should one day throw light on the origin of mountains, as it must to the first astronomers, that the fall of an apple should assist in explaining the motions of the moon. — Charles Lyell

In physics, the definition of power is the transfer of energy. We measure the power of a lightbulb in watts. The higher the wattage, the more electricity is transferred into light and heat and the more powerful the bulb. Organizations and their leaders operate exactly the same way. The more energy is transferred from the top of the organization to those who are actually doing the job, those who know more about what's going on on a daily basis, the more powerful the organization and the more powerful the leader. — Simon Sinek

The final section of the book returns to ourselves and asks how it is possible to think about our existence in the light of the strange world described by physics. The — Carlo Rovelli

We have entered the Age of Light. The ages of steam and coal are long gone. With oil clinging to power, light is emerging as our deus ex machine. Light goes where nothing else can, gets there faster than anything else could, and brings back the images. If there are limits to light, other than its cosmic speed limit, we have not tested them. If there is a final answer to the question "What is light?" we have not found it. — Bruce Watson

Light is the magician of the cosmos. — Bruce Watson

The world of science lives fairly comfortably with paradox. We know that light is a wave, and also that light is a particle. The discoveries made in the infinitely small world of particle physics indicate randomness and chance, and I do not find it any more difficult to live with the paradox of a universe of randomness and chance and a universe of pattern and purpose than I do with light as a wave and light as a particle. Living with contradiction is nothing new to the human being. — Madeleine L'Engle

When he put the old-fashioned mechanical toy on her palm, she stopped breathing. It was a tiny representation of an atom, complete with colored ball bearings standing in for neutrons, protons, and on the outside, arranged on arcs of fine wire, electrons. Turning the key on the side made the electrons move, what she'd thought were ball bearings actually finely crafted spheres of glass that sparked with color. A brilliant, thoughtful, wonderful gift for a physics major.
"Why magnesium?" she asked, identifying the atomic number of the light metal. His hand on her jaw, his mouth on her own. "Because it's beautifully explosive, just like my X. — Nalini Singh

So that while others may look on the laws of physics as legislation and God as a human form with beard measured in light-years and double for sandals, Faust's kind (poets) are alone with the task of living in a universe of things which simply are, and cloaking that innate mindlessness with comfortable and pious metaphor so that the "practical" half of humanity may continue in the Great Lie, confident that their machines, dwellings, streets and weather share the same human motives, personal traits and fits of contrariness as they. — Thomas Pynchon

The fine structure constant is undoubtedly the most fundamental pure (dimensionless) number in all of physics. It relates the basic constants of electromagnetism (the charge of the electron), relativity (the speed of light), and quantum mechanics (Planck's constant). — David J. Griffiths

Now that physics is proving the intelligence of the universe what are we to do about the stupidity of mankind? I include myself. I know that the earth is not flat but my feet are. I know that space is curved but my brain has been condoned by habit to grow in a straight line. What I call light is my own blend of darkness. What I call a view is my hand-painted trompe-l'oeil. I run after knowledge like a ferret down a ferret hole. My limitations, I call the boundaries of what can be known. I interpret the world by confusing other people's psychology with my own. — Jeanette Winterson

Light - i.e. space - is the structure of time, the essence of existence. The stuff of physics does not involve time. Orthodox contemporary physics sadly refers to this fact as the problem of time. — Eric Bredesen

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. — Arthur I. Miller

Santa knows Physics: Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig. — Neil DeGrasse Tyson

What folly takes light through ether to each eye from every horizon. — Scarlett Thomas