HistoryNEWSLETTER Physics A FORUM OF THE AMERICAN PHYSICALof SOCIETY • VOLUME XI • NO. 4 • SPRING 2011 2011 Pais Prize Lecture: Shelter Island Revisited By Silvan S. Schweber he Shelter Island Conference on Quantum Mechanics was a landmark. It was the first of three small post- World War II conferences on theoretical physics spon- Tsored by the National Academy of Sciences (NAS). The first took place June 2–4, 1947, at the Ram’s Head Inn on Shelter Island at the tip of Long Island. The second, the Pocono Conference, was held from March 30 to April 2, 1948, and the third, Oldstone, occurred April 11–14, 1949. The initial impetus for the Shelter Island Conference came from Duncan MacInnes, a distinguished physical chemist at the Rockefeller Institute, who had suggested to Frank Jewett, then president of the National Academy of Sciences (NAS), that it sponsor a series of small conferences. The participants (see Fig. 1) were primarily theoretical physicists, most of whom had been leaders at the highly successful wartime laboratories: the MIT Radiation Laboratory, Chicago Metallurgical Laboratory, Johns Hopkins Applied Phys- ics Laboratory, and Los Alamos. Also in attendance were several experimental physicists including Willis Lamb and Fig. 1. Assembled attendees of the June 1947 Shelter Island Conference Isidor Rabi, who reported on experiments on the spectrum on Quantum Mechanics. Left to right: Isidor Rabi, Linus Pauling, of hydrogen that had been recently performed at Columbia John Van Vleck, Willis Lamb, Gregory Breit, Duncan MacInnes, University, and Bruno Rossi who reported on the results of Karl Darrow, George Uhlenbeck, Julian Schwinger, Edward Teller, researches carried out in Rome on the atmospheric absorp- Bruno Rossi, Arnold Nordsieck, John von Neumann, John Wheeler, tion of cosmic rays. Hans Bethe, Robert Serber, Robert Marshak, Abraham Pais, Robert The significance of the conference was soon as evident Oppenheimer, David Bohm, Richard Feynman, Victor Weisskopf, to the participants as it is now in retrospect. Six months Herman Feshbach. Not included here is Hendrik Kramers. Photograph later, in January of 1948, APS secretary Darrow wrote his courtesy of AIP Emilio Segrè Visual Archives, Marshak Collection. fellow organizer Duncan MacInnes a brief postcard stating, “I must quote [you] . the words of warm commendation used yesterday by I. I. Rabi about your Shelter Island meet- ing—he said that it has proved much more important than it In This Issue seemed even at the time, and would be remembered as the 1911 Solvay Congress is remembered, for having been the Shelter Island Revisited 1 starting-point of remarkable new developments.” Similarly, Richard Feynman many years later recalled, “There have been many conferences in the world since, but I’ve never felt Editor’s Corner 2 any to be as important as this.” The meeting turned out to be the most seminal confer- History of Superconductivity 4 ence held right after the end of World War II; its impact was indeed comparable to that of the Solvay Congress of 1911. Just as that meeting set the stage for all the subse- John Van Vleck 6 quent developments in quantum theory, similarly Shelter Island provided the initial stimulus for the post-World New Books of Note 12 Continues on page 8 Editors’ Corner Having your house suddenly annihi- lated by a tornado imposes a Janus-like predicament, where you find yourself looking backwards and forward simultane- ously. New beginnings can be good. Rhonda always wanted to design her own house, and now she can do so. But looking back forms an indelible part of the experience. Although a tornado makes history, history lost must be counted among its casualties. Before going there, let me return to the tor- nado itself. The May 24 tornado that honored us with its impersonal visit cut a 65-mile swath across central Oklahoma (the English units stick in the mind from local weather reports). Its rain-wrapped, half-mile-diameter main vortex evidently carried within it at least four tighter vortices. We have reason to think that one of them passed through our Fig. 1. My house (transformed into a high-entropy state) on May 24, 2011. I needed to clean out den and dining room. That part of the house that garage anyway. (Photo by Mark Winslow, of the SNU Physics Department) was cleaned off down to the slab; the rest of the structure collapsed into a pile of twisted he Spring 2011 issue of the FHP rubble. Our roof, doors, appliances, sofas, Newsletter was unfortunately and dining room table were nowhere to be delayed due to inclement weather. found, not even as fragments. Tornadoes TOn May 24, in a spectacularly violent dis- famously produce bizarre effects—your The Forum on History of Physics of play of non-equilibrium thermodynamics refrigerator vanishes but you find the tiny the American Physical Society pub- in a nonlinear system, an EF5 tornado col- wheel of a toy car. We have done the experi- lishes this Newsletter biannually at lided with our house, and the houses of our ment, and can affirm that, for objects having http://www.aps.org/units/fhp/newslet- neighbors (see Fig. 1). large surfaces, the integral of PdA trumps mg ters/index.cfm. If you wish to receive My priorities suddenly changed. Thank- when the wind slams into your house at 300 a printed version of the Newsletter, fully, former Editor Michael Riordan, and mph. I wish that high-speed cameras, like please contact the editor. Each 3-year the recently appointed next Editor Robert those used in the nuclear weapons tests of volume consists of six issues. Crease, approached me through an email the 1950s, had been mounted throughout message aptly entitled “Your Plight,” and the house. It would have been interesting The articles in this issue represent the offered to steer the Spring 2011 issue to to see how our Silverado ended up on top views of their authors and are not completion. Their thoughtful initiative of the Highlander. Most of the vehicles on necessarily those of the Forum or APS. solved a pressing logistical dilemma for me, our street landed in a wheat field half a mile Editor and foreshadowed a flood of thoughtfulness from where they had been parked, folded Dwight E. Neuenschwander to come. into a right angle or rolled into a ball with Department of Physics I am not writing this to elicit sympathy wheels sticking out. When the tornado Southern Nazarene University —we are going to be fine—but to express hit, we were on our way home but were Bethany, OK 73008 gratitude. Within hours of this event and turned back twice by the police. Had we [email protected] ever since, my wife Rhonda and I have been at home we would not have survived. (405) 491-6361 received e-mails, telephone calls, and letters Our new house will have an underground from friends and colleagues. I wish to take shelter. Assuming that one can dash into a this opportunity to express our gratitude neighbor’s shelter now seems too uncertain Associate Editor and appreciation to the Forum on History a strategy. We are thankful to still be among Don Lemons of Physics members who sent messages the living. We can still look forward to seeing Department of Physics of concern, and offered various means of our grandchildren grow up. Bethel College helping us through this challenging time. Not everyone was so fortunate. North Newton, KS 67117 Throughout this experience we found a Although no person on our street perished, [email protected] force stronger than a mere EF5 tornado: the this particular twister killed ten people in Book Review Editor care and concern of so many kind and gener- Oklahoma that day. On our street eight Michael Riordan ous people. We have so much for which to horses lost their lives, including our own [email protected] be grateful. dear Annie, my wife’s equine companion 2 Volume XI, No. 4 • Spring 2011 • History of Physics Newsletter that, hanging in my shop, it was more than a rickety old chair: it was a tribute to Great- Grandpa Ed’s rascally sense of humor. That wobbly green wooden chair is now gone. Telling my grandchildren about their col- orful, ornery, fun-loving great-great-great grandpa became more difficult after May 24. When an artifact has vanished, the tell- ing of the story is diminished. One cannot save everything, but one must save some things, for history. Seeing with you own eyes Galileo’s telescope or Marie Curie’s letters, Albert Einstein’s pipe or one of Niels Bohr’s notebooks, brings the story (and the phys- Fig. 2. Your outgoing editor hard at work a few days after May 24. (Photo by Daryl Cox of the ics) to life. The real thing has no substitute. SNU Chemistry Department) It came up with us. The stories of the people and places for eleven years. Our two weenie dogs, sewing clothes. She also knows the story of behind the physics are more complicat- Heidi and Maggie, amazingly survived how in 1956 her mother made her wedding ed than the body of physics knowledge unscathed. Their steel wire kennel was dress, with her mother’s help, on this very itself, forming incredibly complex webs of found wedged between two heavy pieces machine. The memory of Grandma Coatney relationships that stretch across time and of furniture buried beneath rubble at the far and those events are held within its cabinet. cultures. But without its stories, physics end of the house. They were probably the A creation myth of the pueblo-dwelling becomes homeless, and loses its identity.