Five stars if you like Feynman, four stars for everyone else :)
“Half genius and half buffoon,” Freeman Dyson, himself a rising prodigy, wrote his parents back in England. - 55
Some of them, though never Feynman, put their faith in Werner Heisenberg’s wistful dictum, “The equation knows best.” - 80
(when published, Schwinger’s work would violate the Physical Review’s guidelines limiting the sprawl of equations across the width of the page) - 92
“It was a unifying principle that would either explain everything or explain nothing.” - 123
Their systems of equations represented a submicroscopic world defying the logic of everyday objects like baseballs and water waves, ordinary objects with, “thank God,” as W. H. Auden put it (in a poem Feynman detested): sufficient mass To be altogether there, Not an indeterminate gruel Which is partly somewhere else. - 129
Although he never actually wrote a book, books bearing his name began to appear in the sixties—Theory of Fundamental Processes and Quantum Electrodynamics, lightly edited versions of lectures transcribed by students and colleagues. - 216
The result was published and became famous as “the red books”—The Feynman Lectures on Physics. They reconceived the subject from the bottom up. Colleges that adopted the red books dropped them a few years later: the texts proved too difficult for their intended readers. Instead, professors and working physicists found Feynman’s three volumes reshaping their own conception of their subject. They were more than just authoritative. A physicist, citing one of many celebrated passages, would dryly pay homage to “Book II, Chapter 41, Verse 6.” - 221
With the claim that particle physics was the most fundamental science, they scorned even subdisciplines like solid-state physics—“squalid-state” was Gell-Mann’s contemptuous phrase. - 257
He made islands of practical knowledge in the oceans of personal ignorance that remained: - 276
Later it was said that physicists could be divided into two groups, those who had played with chemistry sets and those who had played with radios. Chemistry sets had their appeal, but a boy like Richard Feynman, loving diagrams and maps, could see that the radio was its own map, a diagram of itself. - 302
His father declared—something he had heard—that electrochemistry was an important new field, and Ritty tried in vain to figure out what electrochemistry was: he made piles of dry chemicals and set live wires in them. A jury-rigged motor rocked his baby sister’s crib. When his parents came home late one night, they opened the door to a sudden clang-clang-clang and Ritty’s shout: “It works!” They now had a burglar alarm. - 482
The adult Richard Feynman became an adept teller of stories about himself, and through these stories came a picture of his father as a man transmitting a set of lessons about science. The lessons were both naïve and wise. Melville Feynman placed a high value on curiosity and a low value on outward appearances. He wanted Richard to mistrust jargon and uniforms; as a salesman, he said, he saw the uniforms empty. - 497
atomos—uncuttable. - 654
We are told when we are young that the earth is round, that it circles the sun, that it spins on a tilted axis. We may accept the knowledge on faith, the frail teaching of a modern secular religion. - 662
Heat had seemed to flow from one place to another as an invisible fluid—“phlogiston” or “caloric.” But a succession of natural philosophers hit on a less intuitive idea—that heat was motion. It was a brave thought, because no one could see the things in motion. - 693
There will never be another Einstein—just as there will never be another Edison, another Heifetz, another Babe Ruth, figures towering so far above their contemporaries that they stood out as legends, heroes, half-gods in the culture’s imagination. There will be, and almost certainly have already been, scientists, inventors, violinists, and baseball players with the same raw genius. But the world has grown too large for such singular heroes. When there are a dozen Babe Ruths, there are none. - 773
Dirac’s end of the dialogue was suitably monosyllabic. (The Journal’s readers must have assumed he was an ancient eminence; actually he was just twenty-seven years old.) “Now doctor will you give me in a few words the low-down on all your investigations?” “No.” “Good. Will it be all right if I put it this way—‘Professor Dirac solves all the problems of mathematical physics, but is unable to find a better way of figuring out Babe Ruth’s batting average’?” “Yes.” ... “Do you go to the movies?” “Yes.” “When?” “In 1920—perhaps also 1930.” - 785
Richard still had some tinkering and probing to do. The Depression broadened the market for inexpensive radio repair, and Richard found himself in demand. In just over a decade of full-scale commercial production, the radio had penetrated nearly half of American households. By 1932 the average price of a new set had fallen to $48, barely a third of the price just three years before. “Midget” - 834
“Our friend Dirac, too, has a religion, and its guiding principle is ‘There is no God and Dirac is His prophet.’” - 1027
No wonder Descartes appended a blanket disclaimer: “At the same time, recalling my insignificance, I affirm nothing, but submit all these opinions to the authority of the Catholic Church, and to the judgment of the more sage; and I wish no one to believe anything I have written, unless he is personally persuaded by the evidence of reason.” - 1042
Although MIT continued to require humanities courses, it took a relaxed view of what might constitute humanities. Feynman’s sophomore humanities course, for example, was Descriptive Astronomy. “Descriptive” meant “no equations.” - 1182
Richard stopped reading, though, long before giving himself the pleasure of rejecting Descartes’s final, equally unsyllogistic argument for the existence of God: that a perfect being would certainly have, among other excellent features, the attribute of existence. - 1207
When an electron absorbed a light quantum, it meant that in that instant it jumped to a higher orbit: the soon-to-be-proverbial quantum jump. When the electron jumped to a lower orbit, it emitted a light quantum at a certain frequency. Everything else was simply forbidden. What happened to the electron “between” orbits? One learned not to ask. - 1282
classically the negatively charged electrons should seek their state of lowest energy and spiral in toward the positively charged nuclei. Substance itself would vanish. Matter would crumple in on itself. Only in terms of quantum mechanics was that impossible, because it would give the electron a definite pointlike position. - 1607
How was anyone to visualize this bloated [uranium] nucleus? …. It was this last image, the liquid drop, that enabled Wheeler and Bohr to produce one of those unreasonably powerful oversimplifications of science, an effective theory of the phenomenon that had been named, only in the past year, fission. (The word was not theirs, and they spent a late night trying to find a better one. They thought about splitting or mitosis and then gave up.) - 1677
Even the kindly genius who became the town’s most famous resident on arriving in 1933 could not resist a gibe: “A quaint ceremonious village,” Einstein wrote, “of puny demigods on stilts.” - 1724
he cultivated his brashness. Not long after he arrived, he had his neighbors at the Graduate College convinced that he and Einstein (whom he had not met) were on regular speaking terms. They listened with awe to these supposed conversations with the great man on the pay phone in the hallway: “Yeah, I tried that ... yeah, I did ... oh, okay, I’ll try that.” Most of the time he was actually speaking with Wheeler. - 1743
Even the physicist has his memories of the past and his aspirations for the future, and no space-time diagram quite obliterates the difference between them. Philosophers, in whose province such speculations had usually belonged, were left with a muddy and senescent set of concepts. The distress of the philosophers of time spilled into their adverbs: sempiternally, hypostatically, tenselessly, retrodictably. - 1944
He did not see why two intelligent people, in love with each other, willing to converse openly, should get caught in arguments. He worked out a plan. Before revealing it to Arline, however, he decided to lay it out for a physicist friend over a hamburger at a diner on the Route 1 traffic circle. The plan was this. When Dick and Arline disagreed intensely about a matter of consequence, they would set aside a fixed time for discussion, perhaps one hour. If at the end of that time they had not found a resolution, rather than continue fighting they would agree to let one of them decide. Because Feynman was older and more experienced (he explained), he would be the one. - 2058
The positron, the antiparticle twin of the electron, had been discovered (in cosmic-ray showers) and named (another modern -tron, short for positive electron) within the past decade. It was the first antiparticle, vindicating a prediction of Dirac’s, based on little more than a faith in the loveliness of his equations. - 2176
Wheeler quoted the White Queen’s remark to Alice: “It’s a poor sort of memory that only works backwards.” - 2223
Few medical researchers understood the rudiments of controlled statistical experimentation. Authorities argued for or against particular therapies roughly the way theologians argued for or against their theories, by employing a combination of personal experience, abstract reason, and aesthetic judgment. - 2365
Marriage was not so simple. It had not occurred to universities like Princeton to leave such matters to their students’ discretion. The financial and emotional responsibilities were considered grave in the best of circumstances. He was supporting himself as a graduate student with fellowships—he was the Queen Junior Fellow and then the Charlotte Elizabeth Proctor Fellow, entitling him to earn two hundred dollars a year as a research assistant. When he told a university dean that his fiancée was dying and that he wanted to marry her, the dean refused to permit it and warned him that his fellowship would be revoked. - 2415
While Feynman remained mostly oblivious, his senior professor Eugene Wigner had for two years been a part of “the Hungarian conspiracy,” with Leo Szilard and Edward Teller, conniving to alert Einstein and through him President Franklin D. Roosevelt to the possibility of a bomb. (“I never thought of that!” Einstein had told Wigner and Szilard.) - 2438
From their windows the Bell researchers could see the George Washington Bridge going up across the Hudson River, and they had traced the curve of the first cable on the glass. As the bridge was hung from it, they were marking off the slight changes that transformed the curve from a catenary to a parabola. Feynman thought it was just the sort of clever thing he might have done. - 2457
They found they were able to bear the pressure of working on the nation’s most fateful secret research project. The senior theoretician crumpled a piece of paper one day, passed it to his assistant, and ordered him to throw it in the wastebasket. “Why don’t you?” the assistant replied. “My time is more valuable than yours,” said Feynman. “I’m getting paid more than you.” They measured the distances from scientist to wastebasket; multiplied by the wages; bantered about their relative value to nuclear science. The number-two man, Paul Olum, threw away the paper. - 2531
Feynman, a cheerful, boyish presence spinning across the campus on his bicycle, scornful of the formalisms of modern advanced mathematics, was running mental circles around him. It wasn’t that he was a brilliant calculator; Olum knew the tricks of that game. It was as if he were a man from Mars. Olum could not track his thinking. He had never known anyone so intuitively at ease with nature—and with nature’s seemingly least accessible manifestations. He suspected that when Feynman wanted to know what an electron would do under given circumstances he merely asked himself, “If I were an electron, what would I do?” - 2538
The light rose and fell across the bowl of desert in silence, no sound heard until the expanding shell of shocked air finally arrived one hundred seconds after the detonation. Then came a crack like a rifle shot, startling a New York Times correspondent at Feynman’s left. “What was that?” the correspondent cried, to the amusement of the physicists who heard him. “That’s the thing,” Feynman yelled back. - 2732
Almost everyone was working in a new field, the theory of explosions, for example, or the theory of matter at extremely high temperatures. The practicality both sobered and thrilled them. The purest mathematicians had to soil their hands. Stanislaw Ulam lamented that until now he had always worked exclusively with symbols. Now he had been driven so low as to use actual numbers, and, even more humbling, they were numbers with decimal points. - 2744
In the minute that the new light spread across that sky, humans became fantastically powerful and fantastically vulnerable. - 2764
work. He had no feeling for experimentation, and his style was unphysical; so, when he made mistakes, they were notoriously silly ones: “Oppenheimer’s formula ... is remarkably correct for him, apparently only the numerical factor is wrong,” a theoretician once wrote acidly. In later physicist lingo a calculation’s Oppenheimer factors were the missing π’s, i’s, and minus signs. - 2810
Richard and Arline went with the first wave, on Sunday, March 28. Instructions were to buy tickets for any destination but New Mexico. Feynman’s contrariety warred for a moment with his common sense, and contrariety won out. He decided that, if no one else was buying a New Mexico ticket, he would. The ticket seller said, Aha—all these crates are for you? - 2839
The recruiters had warned scientists that the army wanted isolation, but no one quite realized what isolation would mean. At first the only telephone link was a single line laid down by the Forest Service. To make a call one had to turn a crank on the side of the box. - 2858
Not all the procedures devised in the name of security helped allay the suspicions of the local population. Any local policeman who pulled over Richard Feynman on the road north of Santa Fe would see the driver’s license of a nameless Engineer identified only as Number 185, residing at Special List B, whose signature was, for some reason, Not required. - 2876
A request for osmium, a dense nonradioactive metal, had to be denied when it became clear that the metallurgists had asked for more than the world’s total supply. - 2911
Challenges and fresh insights came easily from Feynman. He did not wait, as Bethe did, to double-check every intuitive leap. His first idea did not always work. His cannier colleagues developed a rule of thumb: If Feynman says it three times, it’s right. - 2939
Bethe had not just organized the existing knowledge of the subject but had calculated or recalculated every line of theory himself. He had worked on probability theory, on the theory of shock waves, on the penetration of armor by artillery shells (this last paper, born of his eagerness in 1940 to make some contribution to the looming war, was immediately classified by the army so that Bethe himself, not yet an American citizen, could not see it again). - 2943
His Los Alamos colleagues were sometimes amused to hear him, when thinking out loud, howl a sort of whooping glissando when he meant, this rises exponentially; a different sound signified arithmetically. - 3127
The ENIAC had too many tubes to survive. Von Neumann estimated: “Each time it is turned on, it blows two tubes.” The army stationed soldiers carrying spare tubes in grocery baskets. The operators borrowed mean free path terminology from the ricocheting particles of diffusion theory; the computer’s mean free path was its average time between failures. - 3249
Wigner of Princeton had made what was, for a physicist’s physicist in the 1940s, perhaps the ultimate tribute. “He is a second Dirac,” Wigner said, “only this time human.” - 3285
square dances (the same Oxonian, bemused amid the clash of cultures, asked, “What exactly is square about it—the people, the room, or the music?”), - 3310
The censors trod carefully. They tried to turn mail around the day they received it, and they agreed to allow correspondence in French, German, Italian, and Spanish. They felt entitled at least to ask Feynman for the key to the codes. He said he did not have a key or want a key. Finally they agreed that if Arline would enclose a key for their benefit they would remove it before the envelope got to Feynman. - 3322
Inevitably, he then ran afoul of regulation 8(l), a delightfully (to Feynman) self-referential law requiring the censorship of any information concerning these censorship regulations or any discourse on the subject of censorship. He got the message to Arline nonetheless, and her acid sense of fun took over. She started sending letters with holes cut in them or blotches of ink covering words: “It’s very difficult writing because I feel that the —— is looking over my shoulder.” He would respond with numerical fancies, pointing out how peculiarly the decimal expansion of 1/243 repeats itself: .004 115 226 337 448 ... and his increasingly frustrated official audience would have to ensure that the string of digits was neither a cipher nor a technical secret. Feynman explained with subtle glee that this fact had the empty, tautological, zero-information-content quality of all mathematical truths. In one of her mail-order catalogs Arline found a kit for do-it-yourself jigsaw puzzles; the next letter from the Albuquerque sanatorium to Box 1663 came disassembled in a little sack. From another the censors deleted a suspicious-sounding shopping list. Richard and Arline talked about a booby-trapped letter that would begin, “I hope you remembered to open this letter carefully because I have included the Pepto Bismol powder ...” Their letters were a lifeline. No wonder, under watchful eyes, the lovers found ways to make them private. - 3325
This device replaced an older container, the most ancient prototype of the soda machine: customers would open the lid, take a bottle, and honorably drop their coin in a box. The new dispenser struck Feynman as a withdrawal of trust; thus he felt entitled to accept the technological challenge and finesse the mechanism. - 3347
One man, Harry Daghlian, working alone at night, let slip one cube too many, frantically grabbed at the mound to halt the chain reaction, saw the shimmering blue aura of ionization in the air, and died two weeks later of radiation poisoning. Later Louis Slotin used a screwdriver to prop up a radioactive block and lost his life when the screwdriver slipped. Like so many of these worldly scientists he had performed a faulty kind of risk assessment, unconsciously mis-multiplying a low probability of accident (one in a hundred? one in twenty?) by a high cost (nearly infinite). - 3513
There's way more, but it won't fit here :(