Showing posts with label Feynman. Show all posts
Showing posts with label Feynman. Show all posts

Tuesday, February 13, 2024

A Pattern or Dance


"Is no one inspired by our present picture of the universe? This value of science remains unsung by singers: you are reduced to hearing not a song or poem, but an evening lecture about it. This is not yet a scientific age.

Perhaps one of the reasons for this silence is that you have to know how to read music. For instance, the scientific article may say, “The radioactive phosphorus content of the cerebrum of the rat decreases to one-half in a period of two weeks.” Now what does that mean?

It means that phosphorus that is in the brain of a rat—and also in mine, and yours—is not the same phosphorus as it was two weeks ago. It means the atoms that are in the brain are being replaced: the ones that were there before have gone away.

So what is this mind of ours: what are these atoms with consciousness? Last week’s potatoes! They now can remember what was going on in my mind a year ago—a mind which has long ago been replaced. To note that the thing I call my individuality is only a pattern or dance, that is what it means when one discovers how long it takes for the atoms of the brain to be replaced by other atoms. The atoms come into my brain, dance a dance, and then go out—there are always new atoms, but always doing the same dance, remembering what the dance was yesterday."

Richard Feynman (1918 - 1988)

Friday, December 31, 2021

A Vast Pattern


"Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I too can see the stars on a desert night, and feel them. But do I see less or more? The vastness of the heavens stretches my imagination - stuck on this carousel my little eye can catch one - million - year - old light. A vast pattern - of which I am a part... What is the pattern, or the meaning, or the why? It does not do harm to the mystery to know a little about it. For far more marvelous is the truth than any artists of the past imagined it. Why do the poets of the present not speak of it? What men are poets who can speak of Jupiter if he were a man, but if he is an immense spinning sphere of methane and ammonia must be silent?"

- Richard Feynman (1918 - 1988)

Wednesday, April 28, 2021

The Awe of a Flower


"I have a friend who’s an artist and has sometimes taken a view which I don’t agree with very well. He’ll hold up a flower and say “look how beautiful it is,” and I’ll agree. Then he says “I as an artist can see how beautiful this is but you as a scientist take this all apart and it becomes a dull thing,” and I think that he’s kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe. Although I may not be quite as refined aesthetically as he is … I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside, which also have a beauty. I mean it’s not just beauty at this dimension, at one centimeter; there’s also beauty at smaller dimensions, the inner structure, also the processes. The fact that the colors in the flower evolved in order to attract insects to pollinate it is interesting; it means that insects can see the color. It adds a question: does this aesthetic sense also exist in the lower forms? Why is it aesthetic? All kinds of interesting questions which the science knowledge only adds to the excitement, the mystery and the awe of a flower. It only adds. I don’t understand how it subtracts."

- Richard Feynman (1918 - 1988)
The Beauty of the Flower

Tuesday, May 26, 2020

The Behavior of Things


"Electrons, when they were first discovered, behaved exactly like particles or bullets, very simply. Further research showed, from electron diffraction experiments for example, that they behaved like waves. As time went on there was a growing confusion about how these things really behaved ---- waves or particles, particles or waves? Everything looked like both.

This growing confusion was resolved in 1925 or 1926 with the advent of the correct equations for quantum mechanics. Now we know how the electrons and light behave. But what can I call it? If I say they behave like particles I give the wrong impression; also if I say they behave like waves. They behave in their own inimitable way, which technically could be called a quantum mechanical way. They behave in a way that is like nothing that you have seen before. Your experience with things that you have seen before is incomplete. The behavior of things on a very tiny scale is simply different. An atom does not behave like a weight hanging on a spring and oscillating. Nor does it behave like a miniature representation of the solar system with little planets going around in orbits. Nor does it appear to be somewhat like a cloud or fog of some sort surrounding the nucleus. It behaves like nothing you have seen before.

There is one simplification at least. Electrons behave in this respect in exactly the same way as photons; they are both screwy, but in exactly in the same way….

The difficulty really is psychological and exists in the perpetual torment that results from your saying to yourself, "But how can it be like that?" which is a reflection of uncontrolled but utterly vain desire to see it in terms of something familiar. I will not describe it in terms of an analogy with something familiar; I will simply describe it. There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe there ever was such a time. There might have been a time when only one man did, because he was the only guy who caught on, before he wrote his paper. But after people read the paper a lot of people understood the theory of relativity in some way or other, certainly more than twelve. On the other hand, I think I can safely say that nobody understands quantum mechanics. So do not take the lecture too seriously, feeling that you really have to understand in terms of some model what I am going to describe, but just relax and enjoy it. I am going to tell you what nature behaves like. If you will simply admit that maybe she does behave like this, you will find her a delightful, entrancing thing. Do not keep saying to yourself, if you can possible avoid it, "But how can it be like that?" because you will get 'down the drain', into a blind alley from which nobody has escaped. Nobody knows how it can be like that."

Richard Feynman (1918 - 1988)

Saturday, February 24, 2018

Mysterious Universe


"I think it's much more interesting to live not knowing than to have answers which might be wrong. I have approximate answers and possible beliefs and different degrees of uncertainty about different things, but I am not absolutely sure of anything and there are many things I don't know anything about, such as whether it means anything to ask why we're here. I don't have to know an answer. I don't feel frightened not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is as far as I can tell."

- Richard Feynman (1918 - 1988)

Wednesday, January 24, 2018

Nobody Knows How It Can Be Like That


"I am going to tell you what nature behaves like.
If you will simply admit that maybe
she does behave like this,
you will find her a delightful, entrancing thing.
Do not keep saying to yourself,
if you can possibly avoid it,
‘but how can it be like that?’
because you will get ‘down the drain,’
into a blind alley from which
nobody has yet escaped.
Nobody knows how it can be like that."

- Richard Feynman (1918 - 1988)

Friday, June 17, 2016

Problem of Existence


"The problem of existence is a very interesting and difficult one. if you do mathematics, which is simply working out the consequences of assumptions, you'll discover for instance a curious thing if you add the cubes of integers. One cubed is one, two cubed is two times two times two, that's eight, and three cubed is three times three times three, that's twenty-seven. If you add the cubes of these, one plus eight plus twenty-seven- let's stop there - that would be thirty-six. And that's the square of of another number, six, and that number is the sum of those same integers. one plus two plus three...Now, that fact which I've just told you about might not have been known to you before. You might say Where is it, what is it, where is it located, what kind of reality does it have?' And yet you came upon it. When you discover these things, you get the feeling that they were true before you found them. So you get the idea that somehow they existed somewhere, but there's nowhere for such things. It's just a feeling...Well, in the case of physics we have double trouble. We come upon these mathematical interrelationships but they apply to the universe, so the problem of where they are is doubly confusing...Those are philosophical questions that I don't know how to answer."

- Richard Feynman (1918 - 1988)

Wednesday, May 11, 2016

Parts of the Universe



"A poet once said, 'The whole universe is in a glass of wine.' We will probably never know in what sense he meant it, for poets do not write to be understood. But it is true that if we look at a glass of wine closely enough we see the entire universe. There are the things of physics: the twisting liquid which evaporates depending on the wind and weather, the reflection in the glass; and our imagination adds atoms. The glass is a distillation of the earth's rocks, and in its composition we see the secrets of the universe's age, and the evolution of stars. What strange array of chemicals are in the wine? How did they come to be? There are the ferments, the enzymes, the substrates, and the products. There in wine is found the great generalization; all life is fermentation. Nobody can discover the chemistry of wine without discovering, as did Louis Pasteur, the cause of much disease. How vivid is the claret, pressing its existence into the consciousness that watches it! If our small minds, for some convenience, divide this glass of wine, this universe, into parts -- physics, biology, geology, astronomy, psychology, and so on -- remember that nature does not know it! So let us put it all back together, not forgetting ultimately what it is for. Let it give us one more final pleasure; drink it and forget it all!"

(1918 - 1988)

Sunday, April 03, 2016

Mystery and Awe


“I have a friend who's an artist and has sometimes taken a view which I don't agree with very well. He'll hold up a flower and say "look how beautiful it is," and I'll agree. Then he says "I as an artist can see how beautiful this is but you as a scientist take this all apart and it becomes a dull thing," and I think that he's kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe. Although I may not be quite as refined aesthetically as he is ... I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside, which also have a beauty. I mean it's not just beauty at this dimension, at one centimeter; there's also beauty at smaller dimensions, the inner structure, also the processes. The fact that the colors in the flower evolved in order to attract insects to pollinate it is interesting; it means that insects can see the color. It adds a question: does this aesthetic sense also exist in the lower forms? Why is it aesthetic? All kinds of interesting questions which the science knowledge only adds to the excitement, the mystery and the awe of a flower. It only adds. I don't understand how it subtracts.” 

(1918-1988)

Wednesday, February 17, 2016

What is an Object?


“...Consider an object ...  what is an object? 

Philosophers are always saying, 
'Well, just take a chair for example.' 
The moment they say that, you know they 
do not know what they are talking about any more. 

What is a chair? 
Well, a chair is a certain thing over there ... 
Certain? How certain?
 The atoms are evaporating from it 
from time to time - not many atoms,
 but a few - dirt falls on it and 
gets dissolved in the paint; 
so to define a chair precisely, 
to say exactly which atoms are chair,
 and which atoms are air, or which atoms are dirt, 
or which atoms are paint that
 belongs to the chair is impossible. 

So the mass of a chair can be defined only approximately.

 In the same way, to define the mass of a single object is impossible,
 because there are not any single, left-alone objects in the world.”

(1918 - 1988)

Sunday, April 14, 2013

The Left-Brain looks at what the Right-Brain has been doing for the last 10 years

"The great pleasure and feeling in my right brain is more than my left brain can find the words to tell you." - Roger Sperry


As readers of my blog must surely know by now, my "day job" consists of being a principal research scientist for a naval operations think tank. (Operational research - or "OR" for short - has a long and interesting history, some early days of which are wonderfully recounted in a recent biography of Patrick Blackett, who was a pioneer British OR pioneer in WWII; see Blackett's War: The Art of Warfare). So, being an OR analyst/physicist by day, fine-art photographer at all other hours, I am a veritable textbook exemplar of a broad class of creatures best described as quantum superpositions of their left and right brains. While my left brain is immersed in data, equations, computer code, and endless Powerpoint slides full of those d&#n military acronyms and nested lists of bullets (here is Richard Feynman's take on Powerpoint bullets in his autobiographical What Do You Care What Other People Think?, from the passage in the book in which he describes his role during the Space Shuttle Challenger disaster: “Then we learn about 'bullets' - little black circles in front of phrases that were supposed to summarize things. There was one after another of these little goddamn bullets in our briefing books and on the slides.”), my right brain is looking forward to when it will next look through a camera viewfinder, work in Photoshop, and/or do some printing. Normally - actually, almost always - I deliberately keep my conscious self focused on either one or the other side, but never both at the same time, though I appreciate the inevitability of the "other" - inactive - side quietly lurking in some dark corner of my unconscious, never quite "letting go" completely. After all, human-crafted distinctions like "right brain" and "left brain" are crude categories at best and meaningless at worst, and next to useless in providing a genuine insight into who "we" are fundamentally. 

Still, every once in a while, it is an informative exercise to welcome the cooperation of both sides of one's brain. To wit, and while "in between" projects (a horrific euphemism for "I've just completed a major project and am in dire need of recharging my creative batteries!"), I've applied some very basic skills I use in my left-brain "day job" - namely, that of data collection and visualization - to help my right-brain better understand what it has been doing for the last 10 years. Note that I use the word "doing" here to embody only those qualities of a portfolio that potentially say something about the type of portfolios that have arisen during this time, in the self-defined context of other portfolios that came before and after a given one, and emphatically not - at least in this blog entry - anything about any aesthetic or philosophical concerns. That is to say, this exercise consists of using exclusively left-brain measures (about my portfolios: their number, subject matter, size, and so) to help my left-brain discover possible latent patterns in what my photographic body of work reveals about what my right-brain has been interested in over the last 10 years.

Toward this end, I've recently let my left brain examine my right brain's last decade's worth of photo portfolios - I count 21 major portfolios (I've left off a few that overlap with prior years), many of which have been published in various magazines - and cataloged the results according to where a given portfolio falls in each of five categories: (1) duration of time of actual shooting using a camera (= x-axis), (2) duration of time spent processing in Photoshop (= y-axis), (3) the size of the final portfolio, measured by total number of images that make up the given portfolio, not the number of raw images from which that final set was eventually distilled (= size of the "point" that is plotted; the overall scale is set by the 125 images that make up my "synesthetic landscape" portfolio), (4) the relative age of a portfolio (the lighter the shade of grey of the point being plotted, the older the given portfolio is), and (5) whether the portfolio has been published and/or (a significant portion has been) exhibited (indicated in red).

The "infographic" shown at the top of this blog entry summarizes my findings, which reveals a few interesting trends (the x and y axes are both expressed in years). First, the durations of my portfolios essentially span the entire 10 years period of my little experiment, with examples that range from literally a day (such as my Luray Caverns portfolio) to a perpetually ongoing series that, not so coincidentally, matches a core theme of my blog (namely "Tao"). Second, except for the Synesthetic Landscapes series, my most recent portfolios (denoted by "disks" that are nearly or close-to being opaque) are relatively short in duration - about a year or less in duration - but cover a wide span of processing times (from about a week to more than a year). For example, while my Scotland portfolio was - of necessity, of course - captured during the 3 week period my wife and I were in Scotland, it consumed significantly over a years' worth of time to process (and still provides many happy hours "reimagining" past shots now, years after our trip in 2009). The same can be said about my Tetons and Yellowstone portfolio. Third, neither the duration nor processing times have much correlation with whether or not a given portfolio was published, as there are representatives of the published set (highlighted in red) that span both sets of axes. Fourth, except for a few small (Megaliths - labeled "5" in the infographic, for no good reason other than it was the fifth portfolio I counted statistics for and its size is too small to permit the title to be shown - and Entropic Melodies) and large (Synesthetic Landscapes) sized outliers, essentially all of my portfolios contain between about 40 and 80 images.

Finally, two observations present themselves about portfolio publications. The first is an obvious but still amusing "insight" that the size of my portfolios has little if anything to do with whether it was published, as both small and large efforts have appeared in print, albeit the result is skewed by a number of publications in Lenswork magazine (whose editorial policy is to either accept a portfolio "as is" in terms of size - whatever the size - or not at all). I am glad to see that I've persevered in completing fairly large sized portfolios (e.g., "Trees" and Swirls, Whorls, and Tendrils) without the "reward" of publications (though, here again, the result is perhaps not all that surprising, given that that is rarely my goal as I work toward completing a given project).

The second observation, and more surprising insight, revealed itself only after digging a bit deeper into what the infographic shows directly. I noticed that each of my portfolios belongs to one of three general types of content, as made clear by their titles. The three types are place (Luray, Hawaii, Greece, Scotland, and Tetons), thing (Ciphers, GlyphsMegaliths, Flame, Portals, Swirls, and Water), and theme (Entropic Melodies, Metaphor, Micro Worlds, Spirit and LightSynesthetic LandscapesTao, and Geometry). What is surprising is that, of the 9 portfolios that have been published, 7 come from the themed portfolios set; indeed, all 7 in that category have been published! While my sample set of 10 years' worth of work and 21 portfolios is much too small to yield anything but the most rudimentary of observations, it is tempting to speculate that themes generally resonate deeper with viewers (and editors and curators) than do places and things.

Sunday, November 25, 2012

Apparent Complexities

"It always bothers me that, according to the laws as we understand them today, it takes a computing machine an infinite number of logical operations to figure out what goes on in no matter how tiny a region of space, and no matter how tiny a region of time. How can all that be going on in that tiny space? Why should it take an infinite amount of logic to figure out what one tiny piece of space/time is going to do? So I have often made the hypotheses that ultimately physics will not require a mathematical statement, that in the end the machinery will be revealed, and the laws will turn out to be simple, like the checker board with all its apparent complexities." - Richard Feynman (1918 - 1988)

Tuesday, February 14, 2006

Richard Feynman Videos


The Vega Science Trust has posted a set of four archival recordings from the University of Auckland (New Zealand) of lectures by Richard Feynman, arguably one of the greatest physicists of the 20th century. Feynman's lectures on audio tape are wonderful, and every aspiring physicist owes it to him/her-self to listen to a selection of those available, but these videos are truly something special! They give a real flavor of what it must have been like to be in Feynman's class.