ISSN:0031-9228    

DOI:10.1063/1.2810898

出版商:AIP    

年代:1989

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.2810899

出版商:AIP    

年代:1989

数据来源: AIP

ISSN:0031-9228    

DOI:10.1063/1.2810901

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

In December the 1988 Nobel Prize in Chemistry was presented to three scientists who delineated the physical structure of a protein‐pigment complex that resides in a cell membrane and plays a critical role in photosynthesis. The three are Johann Deisenhofer of the Howard Hughes Medical Institute Laboratories at the University of Texas Southwestern Medical Center in Dallas, Texas; Robert Huber of the Max Planck Institute for Biochemistry in Martinsried, West Germany; and Hartmut Michel of the Max Planck Institute for Biophysics in Frankfurt, West Germany. Before their work, many had felt that crystallizing and subsequently resolving the structure of a membrane‐bound protein would not be possible. The prize not only honors the researchers for this feat but also indirectly recognizes the key role played by this protein in nature's process for converting sunlight into energy.

ISSN:0031-9228    

DOI:10.1063/1.2810902

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

The diagram you see scattered throughout this issue is a reminder of the legacy Richard Feynman left us. Feynman was a hero to me, as he was to many of us. When he died on 15 February 1988, the world lost one of the finest theoretical physicists of the 20th century.

ISSN:0031-9228    

DOI:10.1063/1.881188

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

“This chap from MIT: Look at his aptitude test ratings in mathematics and physics. Fantastic! Nobody else who's applying here at Princeton comes anywhere near so close to the absolute peak.” Someone else on the Graduate Admissions Committee broke in, “He must be a diamond in the rough. We've never let in anyone with scores so low in history and English. But look at the practical experience he's had in chemistry and in working with friction.”

ISSN:0031-9228    

DOI:10.1063/1.881189

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

Just a brief letter before we go off to Rochester. We have every Wednesday a seminar at which somebody talks about some item of research, and from time to time this is made a joint seminar with Rochester University. Today is the first time this term that we are going over there for it. It is a magnificent day, and it should be a lovely trip; Rochester is due north of here, and we go through some wild country. I am being taken in Feynman's car, which will be great fun if we survive. Feynman is a man for whom I am developing a considerable admiration; he is the brightest of the young theoreticians here, and is the first example I have met of that rare species, the native American scientist. He has developed a private version of the quantum theory, which is generally agreed to be a good piece of work and may be more helpful than the orthodox version for some problems; in general he is always sizzling with new ideas, most of which are more spectacular than helpful, and hardly any of which get very far before some newer inspiration eclipses them. His most valuable contribution to physics is as a sustainer of morale; when he bursts into the room with his latest brain‐wave and proceeds to expound it with the most lavish sound effects and waving about of the arms, life at least is not dull. [Victor] Weisskopf, the chief theoretician at Rochester, is also an interesting and able man, but of the normal European type; he comes from Munich, where he was a friend of Bethe from student days.

ISSN:0031-9228    

DOI:10.1063/1.881190

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

On 10 December 1965 three people shared a Nobel Prize “for their fundamental work in quantum electrodynamics.” I am the sole survivor of that trio. Almost a decade ago I delivered a memorial lecture for Sin‐itiro Tomonaga. Now I join with others in a tribute to Richard P. Feynman.

ISSN:0031-9228    

DOI:10.1063/1.881191

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

When I think of Richard, I often recall a chilly afternoon in Altadena shortly after his marriage to the charming Gweneth. My late wife, Margaret, and I had returned in September 1960 from a year in Paris, London and East Africa; Richard had greeted me with the news that he was “catching up with me”—he too was to have an English wife and a small brown dog. The wedding soon took place, and it was a delightful occasion. We also met the dog (called Venus, I believe) and found that Richard was going overboard teaching her tricks (leading his mother, Lucille, with her dry wit, to wonder aloud what would become of a child if one came along). The Feynmans and we both bought houses in Altadena, and on the afternoon in question Margaret and I were visiting their place.

ISSN:0031-9228    

DOI:10.1063/1.881192

出版商:AIP    

年代:1989

数据来源: AIP

摘要:

For me, as for so many others, Richard Feynman is a special hero. He became so while I was learning quantum electrodynamics in graduate school at Stanford. The course happened to be organized historically, and for several months it was taught in the 1930s style out of Heitler's classic text, using old‐fashioned perturbation theory and Dirac matrices &agr; and &bgr; (but not &ggr;). After this trial by fire came a seemingly endless, gloomy, turgid mass of field‐quantization formalism. When Feynman diagrams arrived, it was the sun breaking through the clouds, complete with rainbow and pot of gold. Brilliant! Physical and profound! It was instant conversion to discipleship.

ISSN:0031-9228    

DOI:10.1063/1.881193

出版商:AIP    

年代:1989

数据来源: AIP