The trouble with computers is that you 'play' with them! I don’t know how to do this on a small scale in a practical way, but I do know that computing machines are very large; they fill rooms. Perhaps this doesn’t excite you to do it, and only economics will do so. It would be very easy to make an analysis of any complicated chemical substance; all one would have to do would be to look at it and see where the atoms are. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly. But if the physicists wanted to, they could also dig under the chemists in the problem of chemical analysis. A collection of quotes and sayings by Richard Feynman on nanotechnology, quantum, physics, nobel-prize, create, attitude, life, chemistry, time and discovery. It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. People often think I'm a faker, but I'm usually honest, in a certain way - in such a way that often nobody believes me! You can analyze almost anything today, so I am a little late with my idea. A friend of mine (Albert R. Hibbs) suggests a very interesting possibility for relatively small machines. Why, there is nothing to it; the volume is much less than that of even one full-scale lathe. He made a breakthrough, a new method of doing physics. The magnetic properties on a very small scale are not the same as on a large scale; there is the “domain” problem involved. Quotes Theoretical physics is a human endeavor, one of the higher developments of human beings – and this perpetual desire to prove that people who do it are human by showing that they do other things that a few other humans do (like playing bongo drums) is insulting to me. I think it is somehow a representation of the simplicity of nature.

The information cannot go any faster than the speed of light — so, ultimately, when our computers get faster and faster and more and more elaborate, we will have to make them smaller and smaller. When I would hear the rabbi tell about some miracle such as a bush whose leaves were shaking but there wasn't any wind, I would try to fit the miracle into the real world and explain it in terms of natural phenomena. There is nothing that I can see in the physical laws that says the computer elements cannot be made enormously smaller than they are now. Why must the field be symmetrical?

We would press the metal into a plastic material and make a mold of it, then peel the plastic off very carefully, evaporate silica into the plastic to get a very thin film, then shadow it by evaporating gold at an angle against the silica so that all the little letters will appear clearly, dissolve the plastic away from the silica film, and then look through it with an electron microscope!

Let’s see what would be involved. This time around, he called his talk “Tiny Machines.” And while sticking close to the 1959 script, Feynman’s revised lecture shows what technological advances had been made since he first outlined his vision for a nano world.

A big magnet made of millions of domains can only be made on a small scale with one domain. Suppose, to be conservative, that a bit of information is going to require a little cube of atoms 5 times 5 times 5 — that is 125 atoms. All the evidence, experimental and even a little theoretical, seems to indicate that it is the energy content which is involved in gravitation, and therefore, since matter and antimatter both represent positive energies, gravitation makes no distinction. Yet if we could write it in a very small space, it wouldn’t make any difference; it could just be thrown away after it was read. But you can’t work directly through a pantograph which makes a smaller pantograph which then makes a smaller pantograph — because of the looseness of the holes and the irregularities of construction. With the exception of gravitation and radioactivity, all of the phenomena known to physicists and chemists in 1911 have their ultimate explanation in the laws of quantum electrodynamics.

But do I see less or more? I've always been very one-sided about science, and when I was younger, I concentrated almost all my effort on it. Not just where did life come from, or where did the earth come from, but where did the stuff of life and of the earth come from? Where do the proteins sit?

I make ten sets of “hands,” and I wire them to my original levers so they each do exactly the same thing at the same time in parallel. At each stage, it is necessary to improve the precision of the apparatus.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on. We have compiled some famous sayings and thoughts by Richard Feynman which are used as quotable quotes to this date. At the atomic level, we have new kinds of forces and new kinds of possibilities, new kinds of effects.
It is interesting to consider what the problems are in such small machines. As soon as I mention this, people tell me about miniaturization, and how far it has progressed today. After all, we haven’t even started in this field, and even the kids can write smaller than has ever been written before. So it should be possible to see the individual atoms.

The most remarkable discovery in all of astronomy is that the stars are made of atoms of the same kind as those on the earth. Therefore, one needs a considerable amount of preparatory training even to learn what the words mean. Finally, since we’re talking about things nano, let me leave you with this — Stephen Fry’s 2010 primer on nanoscience. Enjoy the best Richard P. Feynman Quotes at BrainyQuote. (Perhaps such a beam is not very useful technically or economically.). I wanted very much to learn to draw, for a reason that I kept to myself: I wanted to convey an emotion I have about the beauty of the world. Atoms are very special: they like certain particular partners, certain particular directions, and so on. I got a signed document from Bullock's saying that they had such-and-such drawings on consignment. Is there a physical way to synthesize any chemical substance? The principles of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom. I will not now discuss how we are going to do it, but only what is possible in principle — in other words, what is possible according to the laws of physics. And in many other ways, they would have new qualitative features. But in every theorem there are assumptions. But there is plenty of room to make them smaller. When I was a young man, Dirac was my hero. Thus I can now manipulate the one-sixteenth size hands. Finally, after you've figured out how to do it, you read how they did it and find out how dumb your solution is and how much more clever and efficient theirs is! This was a big jab for my self-confidence in my ability to appreciate art. In the Raphael Room, the secret turned out to be that only some of the paintings were made by the great master; the rest were made by students. I decided to sell my drawings. I don't know what's the matter with people: they don't learn by understanding; they learn by some other way - by rote, or something. The philosophical question before us is, when we make an observation of our track in the past, does the result of our observation become real in the same sense that the final state would be defined if an outside observer were to make the observation? This method might be very slow because of space charge limitations. Probably an external supply of electrical power would be most convenient for such small machines. The first amazing fact about gravitation is that the ratio of inertial mass to gravitational mass is constant wherever we have checked it. When I make my first set of slave “hands” at one-fourth scale, I am going to make ten sets. It need not exist in a theory. The drawing teacher has this problem of communicating how to draw by osmosis and not by instruction, while the physics teacher has the problem of always teaching techniques, rather than the spirit, of how to go about solving physical problems. If you keep proving stuff that others have done, getting confidence, increasing the complexities of your solutions - for the fun of it - then one day you'll turn around and discover that nobody actually did that one! (They will undoubtedly find a better way when we do actually have it written, but to make my point conservatively I shall just take techniques we know today.) Where do the amino acids go in? But it is interesting that it would be, in principle, possible (I think) for a physicist to synthesize any chemical substance that the chemist writes down. In December of 1959, Richard Feynman gave a talk called “There’s Plenty of Room at the Bottom” at an annual meeting of the American Physical Society at Caltech. Well, you get the principle from there on. The same thing would be to beam the light out in a definite direction with very high intensity. But I want the slaves to be made especially carefully by modern large-scale machinists so that they are one-fourth the scale of the “hands” that you ordinarily maneuver.

One had to lose one's common sense in order to perceive what was happening at the atomic level. These you work out for yourself.

The two apparently dissimilar approaches were proved to be mathematically equivalent.

But there are tens of thousands of years in the future. I got a fancy reputation. What are the limitations as to how small a thing has to be before you can no longer mold it? So, each dot can easily be adjusted in size as required by the photoengraving, and there is no question that there is enough room on the head of a pin to put all of the Encyclopaedia Brittanica.
The next question is: How do we write it? In fact, there may be certain advantages. Much more interesting to a computer is a way of writing, erasing, and writing something else. All things do not simply scale down in proportion. The head of a pin is a sixteenth of an inch across. If I get stuck, I look at a book that tells me how someone else did it. All of the information which all of mankind has every recorded in books can be carried around in a pamphlet in your hand — and not written in code, but a simple reproduction of the original pictures, engravings, and everything else on a small scale without loss of resolution. And it turns out that all life is interconnected with all other life. So you have a scheme by which you can do things at one- quarter scale anyway — the little servo motors with little hands play with little nuts and bolts; they drill little holes; they are four times smaller. This has several disadvantages. Is that possible? Nearly everything is really interesting if you go into it deeply enough. What would happen if we could arrange the atoms one by one the way we want them (within reason, of course; you can’t put them so that they are chemically unstable, for example). The thing that doesn't fit is the thing that's the most interesting: the part that doesn't go according to what you expected. If I have written in a code, with 5 times 5 times 5 atoms to a bit, the question is: How could I read it today? And I want to offer another prize — if I can figure out how to phrase it so that I don’t get into a mess of arguments about definitions — of another $1,000 to the first guy who makes an operating electric motor — a rotating electric motor which can be controlled from the outside and, not counting the lead-in wires, is only 1/64 inch cube.

“You should use more mathematics, like we do.” They could answer us — but they’re polite, so I’ll answer for them: “What you should do in order for us to make more rapid progress is to make the electron microscope 100 times better.”.

It is the job of physics to analyze why each one wants what it wants. In photosynthesis, where is the chlorophyll; how is it arranged; where are the carotenoids involved in this thing?

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