Read Surely You're Joking, Mr. Feynman! Online
Authors: Richard Feynman
Nowadays there’s a certain danger of the same thing happening, even in the famous field of physics. I was shocked to hear of an experiment done at the big accelerator at the National Accelerator Laboratory, where a person used deuterium. In order to compare his heavy hydrogen results to what might happen with light hydrogen, he had to use data from someone else’s experiment on light, hydrogen, which was done on different apparatus. When asked why, he said it was because he couldn’t get time on the program (because there’s so little time and it’s such expensive apparatus) to do the experiment with light hydrogen on this apparatus because there wouldn’t be any new result. And so the men in charge of programs at NAL are so anxious for new results, in order to get more money to keep the thing going for public relations purposes, they are destroying–possibly–the value of the experiments themselves, which is the whole purpose of the thing. It is often hard for the experimenters there to complete their work as their scientific integrity demands.
All experiments in psychology are not of this type, however. For example, there have been many experiments running rats through all kinds of mazes, and so on–with little clear result. But in 1937 a man named Young did a very interesting one. He had a long corridor with doors all along one side where the rats came in, and doors along the other side where the food was. He wanted to see if he could train the rats to go in at the third door down from wherever he started them off. No. The rats went immediately to the door where the food had been the time before.
The question was, how did the rats know, because the corridor was so beautifully built and so uniform, that this was the same door as before? Obviously there was something about the door that was different from the other doors. So he painted the doors very carefully, arranging the textures on the faces of the doors exactly the same. Still the rats could tell. Then he thought maybe the rats were smelling the food, so he used chemicals to change the smell after each run. Still the rats could tell. Then he realized the rats might be able to tell by seeing the lights and the arrangement in the laboratory like any commonsense person. So he covered the corridor, and still the rats could tell.
He finally found that they could tell by the way the floor sounded when they ran over it. And he could only fix that by putting his corridor in sand. So he covered one after another of all possible clues and finally was able to fool the rats so that they had to learn to go in the third door. If he relaxed any of his conditions, the rats could tell.
Now, from a scientific standpoint, that is an A-numberone experiment. That is the experiment that makes ratrunning experiments sensible, because it uncovers the clues that the rat is really using–not what you think it’s using. And that is the experiment that tells exactly what conditions you have to use in order to be careful and control everything in an experiment with rat-running.
I looked into the subsequent history of this research. The next experiment, and the one after that, never referred to Mr. Young. They never used any of his criteria of putting the corridor on sand, or being very careful. They just went right on running rats in the same old way, and paid no attention to the great discoveries of Mr. Young, and his papers are not referred to, because he didn’t discover anything about the rats. In fact, he discovered _all_ the things you have to do to discover something about rats. But not paying attention to experiments like that is a characteristic of cargo cult science.
Another example is the ESP experiments of Mr. Rhine, and other people. As various people have made criticisms– and they themselves have made criticisms of their own experiments–they improve the techniques so that the effects are smaller, and smaller, and smaller until they gradually disappear. All the parapsychologists are looking for some experiment that can be repeated–that you can do again and get the same effect–statistically, even. They run a million rats–no, it’s people this time–they do a lot of things and get a certain statistical effect. Next time they try it they don’t get it any more. And now you find a man saying that it is an irrelevant demand to expect a repeatable experiment. This is _science?_
This man also speaks about a new institution, in a talk in which he was resigning as Director of the Institute of Parapsychology. And, in telling people what to do next, he says that one of the things they have to do is be sure they only train students who have shown their ability to get PSI results to an acceptable extent–not to waste their time on those ambitious and interested students who get only chance results. It is very dangerous to have such a policy in teaching–to teach students only how to get certain results, rather than how to do an experiment with scientific integrity.
So I have just one wish for you–the good luck to be somewhere where you are free to maintain the kind of integrity I have described, and where you do not feel heed by a need to maintain your position In the organization, or financial support, or so on, to lose your integrity. May you have that freedom.
INDEX
Addison-Wesley Company, 290
Adrian, Edgar, 58
_Advanced Calculus_ (Woods), 71
_Arabian Nights_, 155, 157
Aristophanes, 280
Baade, Walter, 211
Bacher; Robert, 89, 115, 198, 210-11, 233
Bader (physics teacher), 71
Bausch and Lomb Company, 38
_Be Here Now_ (Ram Das), 303
Bell, Alexander Graham, 6
Bell Labs, 37, 83-84
Bernays, Peter; 25-26, 112
Bethe, Hans, 95, 96, 115, 138,
143-44, 150, 157, 174-75
Block, Martin, 226-27
Boehm, Felix, 229, 231
Bohr; Aage (Jim Baker), 115-116
Bohr, Niels (Nicholas Baker), 115-16
Brazilian Academy of Sciences,
182-83
Bronk, Detlev, 58
Bullock’s, 244
Byers, Nina, 285-86, 288, 289
Cabibbo, Nicola, 232
_Calculus for the Practical Man_, 71
California Institute of Technology (Caltech), 59, 79,
89, 190, 211-13, 229,
238, 250, 289, 295
California State Board of Education, 264–76
Calvin, Professor; 210
Case, Ken, 228
Center for Physical Research, Rio de Janeiro,
179-82, 191-98, 285
CERN, 284
Christy, Robert, 95, 104, 111, 125, 231, 232
Compton, Arthur Holly, 91-92
Cornell University, 50, 118,
150-57, 158, 179, 209-10,
211, 213, 286n, 314
Crick, Francis H. C., 59
Curie, Marie, 251
de Hoffman, Frederic, 42-43,
129-33
Delbrück, Max, 59
Del Sasso, Professor; 53
Demitriades, Steve, 242-43
Dirac, Paul, 230
Dresden Codex, 286-89, 290
Dreyfuss, Henry, 251
Edgar, Robert, 59, 62
Einstein, Albert, 23-24, 65, 66, 84, 155-56, 254
Eisenhart, Dean, 48, 53-54
Eisenhart, Mrs., 48-49
Electrical Testing Labs, 38
Erhard, Werner, 300
Esalen, 309
_Faust_ (Goethe), 31
Feller, Professor, 210
Fermi, Enrico, 114, 213
Feynman, Arlene, 87-89, 93, 95, 98-101, 111-13
Feyriman, Gweneth, 246, 248, 284
Feynman, Lucille, 144
Feynman, Mary Lou, 184-85, 213, 223, 286
Feynman, Mel, 72-74, 144, 286
Feynman Lectures, 290
Frankel, Stanley, 108–9
Frankfort Arsenal, Philadelphia, Pa., 84-87
_Frogs, The_ (Aristophanes), 280
Fuchs, Flaus, 112
Geller, Uri, 310
Gell-Mann, Murray, 203, 227, 229, 232, 290
General Atomics, 42
General Electric Company, 138
Gianonni (restaurant owner),
246-47, 248, 249-50
Gibbs, Professor, 152, 153
Griffin, Dr., 210
_Guys and Dolls_, 295-97
Harvard University, 62-63, 303
Harvey, E. Newton, 57-58
Harvey, Thomas, 264
Heisenberg, Werner, 254
Hughes Aircraft Company, 301
Huxley, Thomas, 31
Institute for Advanced Studies,
Princeton University, 149, 156
Institute of Parapsychology, 316
International Correspondence
Schools, 238
Irwin, Robert, 252
Jefferson, Thomas, 254
Jensen, Hans, 229, 231
Jewish Theological Seminary, 259
Kac, Professor, 210
Kellogg Laboratory, 190
Kemeny, John, 101
Kerst, Donald, 132-33
Kislinger, Mark, 233
Lamfrom, Hildegarde, 61
Lattes, Cesar, 181-82
Laurence, William, 117
Lavatelli, Leo, 119
Lee (physicist), 227-28
Leighton, Ralph, 294-95, 296,
297-301
Leighton, Robert, 294
_Life of Leonardo, The_, 14
Lilly, John, 301-3, 306, 308
Lodge, Sir Oliver, 142
Lollobrigida, Gina, 285
Los Angeles County Museum of Art, 252
Madrid codex, 289
Manhattan Project, 42, 90-118, 119-37, 150
Marcuso (taxi driver), 159
Marshall, Leona, 213-14
Massachusetts Institute of Technology
(MIT), 9, 17, 30, 37–38, 47,
49-50, 51
Meselson, Matthew, 60, 212
Messenger Lectures, 286n
Metaplast Corporation, 42
Meyer, Maurice, 19, 83
Mill, John Stuart, 30
Millikan, Robert, 312-13
_Modern Plastics_, 41, 42
Munger, Professor, 300
_My Later Years_ (Einstein), 254
National Accelerator Laboratory, 315
Neugehauer, Otto, 286
Neumann, John von, 64-65, 115
_New York Times_, 289
Nick the Greek, 208-9
Nishina (physicist), 217
Nobel Prize, 158, 276-85
Norris (lawyer) 264, 265, 274
Oak Ridge, Tenn., Laboratory, 103-8, 125-28
Ofey (Richard Feynman), 244
Olum, Paul, 71, 93, 94, 175-176
“On a Piece of Chalk” (Huxley), 31
_On Freedom_ (Jefferson), 254
Onsager, Lars, 222
Oppenheimer, J. Robert, 91, 93,
104, 105, 110, 227, 286n
Pais, Abraham, 221-22, 223
Pamilio, Pete, 274-75
Pasadena Art Museum, 239-41
Pauli, Wolfgang, 65, 66
Pauling, Linus, 203
Phi Beta Delta, 17-20
_Physical Review_, 94, 233
Polytechnic School, 294
Princeton University, 23, 47-50, 51, 53,
56, 63, 67, 69, 73, 77, 83, 84,
91, 149, 155-56, 173
_Process and Reality_ (Whitehead), 56-57
Rabi, I. I., 91
Ram Das, 303
Ramsey, Norman, 227
Ravndal, Finn, 233
_Reminiscences of Los Alamos,
1943-1945_ (Badash et al.), 90n
Rhine, Joseph, 316
Robertson, Mrs. H. F, 288
Robinson, Professor, 32-34
Rochester Conference, 227
Rogers, Carl, 238
Rowan, Robert, 289
Russell, Henry Norris, 64
Rutishauser, Tom, 295
Sands, Matt, 278
Schrodinger, Erwin, 229, 254
Segre, Emil, 103-4
Serber, Robert, 95
Shockley, Bill, 38, 83
Sholokhov, Mikhail, 282
Sigma Alpha Mu, 17
Slater, Professor, 47, 51, 144
Smith (patent officer), 164-65
Smith, J. D., 60
Smyth, H. D., 91, 117
_Spellbound_, 138
Sputnik, 266
Staley (Los Alamos scientist),
123-24
State University of North Carolina, 235-36
Talmud, 259-60
Telegdi, Valentine, 232-33
Teller, Edward, 102-3, 141
Thompson, Eric, 288, 288-89n
Three Quarks, The, 295
_Time_ magazine, 203, 223,
278-79
Tiomno, Jaime, 179
Tolman, Richard, 91-92
Tomonaga, Sinitiro, 217
Trichel, General, 84
Trowbridge (schoolmaster), 294
Tuchman, Maurice, 253
Ukonu, 293-94
University of Alaska, 277
University of California at Los
Angeles (UCLA), 285
University of Chicago, 213-14
University of Rio, 183
Urey, Harold, 91
Villacorta, 286, 288
Wapstra, Aaldert, 229, 231
Watson, James Dewey, 59, 62
Webb, Julian, 105
Weisskopf, Victor, 284
_What Is Life_ (Schrodinger), 254
Wheeler, John, 51, 63-66, 217, 218
Whitehouse, Mrs., 265
Wigner, Eugene, 64-65
Wildt, Professor, 48
Williams, John, 94
Wilson, Robert, 90, 92, 93, 118, 156, 286n
Woodward, Bill, 73
Wright, Dudley, 244, 249
Wright, Frank Lloyd, 217
Wu, Chien-Shiung, 227, 228
Yang (physicist), 228
Young (psychologist), 315-16
Yukawa, Hideki, 217
Yukawa Institute, 224
Zorthian, Dabney 245
Zorthian, Jirayr, 236-40, 241, 242, 244-45, 250, 279
Zumwalt, Lieutenant, 105-6, 107