Monday, July 20, 2009

Feynman's Lectures on Microsoft Web Site

An article [1] of physicsworld.com has reported that Bill Gates has bought the rights to seven lectures by the late Richard Feynman, which were filmed by the BBC in 1964 — a year before Feynman shared the Nobel Prize in Physics [with Sin'itiro Tomonaga and Julian Schwinger] — and that you can watch them for free at [2]. All we need to do is download and install a bit of software from Microsoft, which takes us a minute or two.

Feynman presented these lectures as the Messenger Lectures at Cornell University in the United States. Titles of them are
  1. The Law of Gravitation, an example of Physical Law
  2. The Relation of Mathematics to Physics
  3. The Great Conservation Principles
  4. Symmetry in Physical Law
  5. The Distinction of Past and Future
  6. Probability and Uncertainty the Quantum Mechanical Law of Nature
  7. Seeking New Laws
Under the movie we can read Feynman's words, so that non-native speakers of English who are unaccustomed to listening lectures in English can well enjoy these lectures. The Messenger Series of lectures is also available as a book [3]. In the foreword of the book, we read, to our astonishment, that Feynman delivered these lectures not from a prepared manuscript but extempore from a few notes.

  1. H. Johnston, Watch Richard Feynman’s lectures for free, physicsworld.com blog (July 17, 2009).
  2. http://research.microsoft.com/apps/tools/tuva/index.html#
  3. R. Feynman, The Character of Physical Law (Penguin, 2007).

Friday, May 22, 2009

Recent Visitors by Country

Each of three blog sites of mine at blogger.com (two in English and one in Japanese) has a counter provided by sitemeter.com. At the site of sitemeter.com, we can see the country share of the latest 99 visitors to each of our own site. The numbers I saw today for my blog sites written in English are as follows (Japan has been excluded from the list, because a considerable number of my own visits for check and correction purposes are included):

"Surely You're Joking" site (Visitors No. 3254–No. 3352)

1United States34%
2United Kingdom5%
3Costa Rica3%
3Netherlands3%
5China2%
5Germany2%
5Portugal2%
5India2%
Countries at the 1% level are Canada, Indonesia, Lithuania, Malaysia, Mexico, Philippines, Poland, Sweden and Switzerland.

"Femto-Essays" site (Visitors No. 7366–No. 7364)

1United States25%
2Canada6%
3India5%
4Brazil4%
5United Kingdom3%
5China3%
7Australia2%
7France2%
7Romania2%
7Philippines2%
Countries at the 1% level are Bangladesh, Denmark, Estonia, Italy, Kuwait, Mexico, Morocco, Panama, Singapore and Ukraine.

Thursday, April 09, 2009

Got an E-mail Message about Kazumi

Last Friday I got an e-mail message about Kazumi from one of his ex-student, Lian Chen. I quote it below by his permission.

Dear Prof. Tabata:

Thanks a lot for your writing about Prof. Kazumi Maki. I was a Ph. D student with Prof. Maki in period 1985-1989. During his sabbatical year 1986–-1987 I went to Max-Planck Institute in Stuttgart Germany. I know Prof. Maki won the prestigious Alexander von Humboldt senior scientists award for his stay at that year in Germany. They also bought a grand piano at the end of his sabbatical and shipped back to US. Both Prof. Maki and Masako were very nice to us as a student at the time. I'm sad that Kazumi has past.

Sincerely yours,
Liang Chen
Department of Physics
University of Ottawa
Ottawa, Ontario
Canada K1N6N5

I suppose that the grand piano mentioned by Liang must have been a gift from Kazumi to Masako on the occasion of the fifteenth anniversary of their wedding. I have never sent such a great gift to my wife!

Monday, December 29, 2008

Kazumi Maki (1936−2008)

Kazumi Maki in August 1995.

In response to my season's greetings to Dr. and Mrs. Kazumi Maki, I received a piece of sad news from Masako, Kazumi's wife, today. She wrote me the following story (rewritten here in my words):

"Kazumi got surgery for colon cancer last year and well recovered. He traveled to Romania, Uzbekistan, Germany and Japan. In May of this year, he refused anymore treatment and went to his annual tour to Europe. He was working in Dresden as usual, but on July 26 he became unable to move. Masako brought him back to California on August 10. Just after a month, on September 10, he departed his life. She buried his remains at the same place as his parents on October 15."

Kazumi was one of my best friends since my student days at Kyoto University. He became a professor at Tohoku University at the record age of 32 in 1968. In 1974 he went to United States to become a professor at the University of Southern California (USC) College.

The USC College News carries an obituary of Kazumi [1]. It begins by these words: "Kazumi Maki, world-renowned physicist in the field of superconductivity, has died. He was 72. Maki was among an elite group of Japanese physicists who during the 20th century fostered the development of physics as a science. He had been a USC College professor of physics and astronomy for 34 years."

Pamela Johnson, the author of the obituary, cites the words of Kazumi's colleagues about the speed of his thought, the ability of quick calculation, speaking several languages, devotion to classical music, playing violin, and singing an opera usually in German, sometimes while skipping. Yes! I knew all these features of him since our student days. One thing I did not know is this: "After earning his Ph.D. in physics at Kyoto University, Maki arrived in the United States in the 1960s and worked as a research associate with the famous physicist Yoichiro Nambu at the University of Chicago." This was his career before coming to Tohoku University.

Johnson also writes, "Among his many honors were a Fulbright Travel Grant; a Nishina Memorial Prize, given to those who have achieved exceptional results in physics; a Guggenheim fellowship; and an American Physical Society fellowship. Over the years, he also earned a USC Associates Award for Creativity in Research and Scholarship, and an additional major international prize in physics, the John Bardeen Prize, given for theoretical work that provides significant insights on the nature of superconductivity leading to verifiable predictions."

Before entering Kyoto University, Kazumi finished technology course of a senior high school in Kyoto by majoring in electrical engineering. This is a rather unusual route to enter a university, but reminds us of the great physicist P. A. M. Dirac's personal history. Dirac graduated in electrical engineering at Bristol University before reading mathematics at Cambridge University [2]. Kazumi's later success in research might have partly come from this similarity to Dirac.

At Kyoto University, Kazumi and I were in the same year class until the middle of the third year. He used to take the seat at the center of the first row in every lesson class. I often asked him to teach me about some points I had not understood in our lessons of foreign languages, mathematics, physics and so on; and he never failed to give me clear answers or useful suggestions.

Kazumi speedily read much Western classic literature either in Japanese translation or in the original even using breaks between lectures. He displayed his quick thinking not only in exams but also in chats with classmates by inserting witty comments. He eagerly attended the course on French literature given by Professor Ryoichi Ikushima, actively joined the chorus club of the university, and had a wish to belong to the orchestra club, too. (The source of most of this paragraph is [3].)

Kazumi and I exchanged letters while I spent spring and summer vacations in my home town (Kazumi lived in Kyoto with his parents). In the autumn of our fourth year at the university, he got a disease (meningitis), and could not attend lectures for a few months, so that he graduated from the university one year later than I.

In his graduate course, Kazumi studied theoretical nuclear and particle physics under Professors Minoru Kobayashi and Hideki Yukawa. Then he changed his research field to low temperature physics according to the advice of Dr. Toshihiko Tsuneto, who also had studied under Yukawa and been to United States. Thus, Kazumi had quite a broad background of research not restricted within superconductivity.

When I was a young researcher at the Radiation Center of Osaka Prefecture, I was a subscriber to the journal Nuclear Science Abstracts. Besides searching papers in the field of my interest in this journal, I often looked for Kazumi's name on the author-index pages, and constantly found his new paper on "dirty superconductors" or something like that. His productive life was good stimulus to me.

Kazumi's name first became famous by "Maki term," which reflected the increase in the normal-electron conductivity induced by super conducting fluctuations [4, 5]. Once browsing the index of the book written by Michael Tinkham [5] at a bookshop, I was surprised to find that his name was cited on pages as many as those that cited the Nobel-Prize winning physicist Lev Landau. I was also glad to find his name just appearing in David Mermin's funny essay [6].

In August 1995, Professor Naoki Toyota, an ex-student of Kazumi's at Tohoku University, invited the latter to deliver a lecture on superconductivity at Osaka Prefecture University (OPU), where I was working. After the lecture, Naoki, a few other members of OPU and I enjoyed talking with Kazumi over beer and sushi dishes. This became my final occasion of seeing him.

On his Christmas card to me, Kazumi always wrote about his academic travel of the year to many countries, often with a fancy multi-color pencil. I wish his peaceful rest in heaven.

  1. P. J. Johnson, In Memoriam: Kazumi Maki, 72: The award-winning physicist in USC College was a classical music aficionado who played the violin, USC College News (September, 2008).
  2. J. Daintith et al. ed., Biographical Encyclopedia of Scientists, 2nd ed., Vol. 1, p. 228 (IOP Publishing, Bristol, 1994).
  3. M. Yata, private communication (2008).
  4. K. Maki, Prog. Theoret. Phys. (Kyoto) Vol. 39, p. 897; Vol. 40, p. 193 (1968).
  5. M. Tinkham, Introduction to Superconductivity (Krieger, 1975); 2nd Edition (Dover, 2004; originally published in 1996).
  6. N. D. Mermin, E pluribus boojum: the physicist as neologist, p. 6 in "Boojums All the Way Through" (Cambridge University Press, 1990). The essay was first published in Physics Today, No. 4, p. 46 (1981).
(Final revision, January 12, 2009)

Notes Added later

I have reminded myself of the fact that at our meeting in 1995 Kazumi told me that he worked under Nambu after finishing graduate courses. This reminding was aided by the memory of my refraining from saying to him at that time, "Then you had no language problems in discussing with the Japanese-born professor." Kazumi was not a person to have any difficulty in speaking in English.

Kazumi was awarded Nishina Memorial Prize in 1972 for his theoretical work on superconductors. His winning of John Bardeen Prize 2006 was for his work on gapless quasiparticle excitations due to pair-breaking and for elucidating the role of fluctuations.

Wednesday, October 08, 2008

The 2008 Nobel Prize in Physics

A piece of good news has come from Sweden together with the smell of flowers of the fragrant olive in my garden:

The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Physics for 2008 with one half to Yoichiro Nambu, Enrico Fermi Institute, University of Chicago, IL, USA, “for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics” and the other half jointly to Makoto Kobayashi, High Energy Accelerator Research Organization (KEK), Tsukuba, Japan, and Toshihide Maskawa, Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Japan “for the discovery of the origin of the broken symmetry which predicts the existence of at least three families of quarks in nature.” (October 7, 2008)

Nambu’s work and that of Kobayashi and Maskawa have long been known to the physics community to be of the Nobel-Prize quality. So their winning of the prize at the same time is really pleasing. At the press conference of last evening, Maskawa said, “I was delighted when the work by Kobayashi and me was experimentally confirmed, but am not glad that I’ve got the prize.” As a humble scientist, I can well understand his feeling.

I wonder one thing about Maskawa. His last name spelled in orthodox romaji (a method of writing Japanese in Roman characters) is Masukawa, but he uses the spelling of Maskawa by leaving out “u” after “s” in his papers. I have had the assumption that he considered the convenience of pronunciation by English speaking people. However, the media reported that he was not good at English. Then he would not have such a consideration as I assumed. Is it that he unintentionally dropped “u” in his first publication, and has continued the same thereafter?

Related sites
  1. The Nobel Prize in Physics 2008, Press Release, Nobelprize.org (October 7, 2008).
  2. Scientific Background on the Nobel Prize in Physics 2008: Broken Symmetries, compiled by the Class for Physics of the Royal Swedish Academy of Sciences (October 7, 2008).
  3. The Nobel Prize in Physics 2008, Information for the Public, The Royal Swedish Academy of Sciences (2008).
  4. Understanding Asymmetrical Universe Garners Nobel Physics Prize for Three Scientists, Inside Science, American Institute of Physics (October 7, 2008).
  5. Nambu, Kobayashi and Maskawa Win Physics Nobel, Scientific American (October 7, 2008).
  6. Three Physicists Share Nobel Prize, New York Times (October 7, 2008).
  7. Particle physicists pick up Nobel Prize, physicsworld.com (October 7, 2008).
  8. Nobel Prize in Physics for symmetry breakdown, Nature News (October 7, 2008).
  9. Kobayashi-Maskawa paper in PDF (1973).
  10. The Nobel Prize in Physics 2008: Speed Read − The Importance of Asymmetry, Nobelprize.org (October 8, 2008).
  11. Profile: Yoichiro Nambu in 1995, Scientific American, Scientific American (October 7, 2008).
  12. A History of Nobel Physicists from Wartime Japan, Scientific American (October 7, 2008).