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Physicists and Traffic Flow by Craig Davis

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Physicists and Traffic Flow by Craig Davis April 2004 NEWS Volume 13, No. 4 A Publication of The American Physical Society http://www.aps.org/apsnews Westward Ho: April Meeting Descends on Denver More than 1000 physicists will The Case of the Missing Neu- models. The mystery of the missing 8 pm will feature (usually visible be on hand for the 2004 APS April trinostrinos. In the mid-19th century, neutrinos would not be solved for talks by Stuart during a solar meeting, to be held May 1-4 in Charles Darwin and Lord Kelvin another three decades, when scien- Freedman, eclipse) is only Denver, Colorado. The April meet- found themselves on opposite sides tists discovered a dramatic solution Michael Turner beginning to be ing traditionally covers a wide of a controversy regarding the age in January 2001. The history of the and others, and revealed, range of physics subfields, includ- of the sun and the origin of solar neutrino problem, its solution, and provide ample according to ing astrophysics, nuclear and energy. It would be over a century subsequent research will be the topic time for audi- Eugene Parker particle physics, the physics of before physics had advanced to the not only of a special public lecture ence partici- of the University beams, plasma physics, computa- point where scientists could postu- on Saturday evening by John Bahcall pation. There is Photo Credit: Denver Convention Center of Chicago, who tional physics, gravitation, late the existence of solar neutrinos, of the Institute for Advanced Study also an invited session on neutrinos gave a Monday morning plenary lec- hadronic physics and few-body and detectors could be built to mea- in Princeton, NJ, but will also be on Sunday afternoon at 2:30 pm. ture on the topic. The quest to glean systems. There will also be numer- sure these elusive particles, which discussed by Fermilab’s Boris [Public lecture and sessions H1, L4 more information about this myste- ous sessions on physics education scientists believe are produced when Kayser, who will describe how neu- and N1] rious gas is hampered by the limited and history. A special public lec- the sun burns hydrogen nuclei to trinos can morph from one “flavor” Exploring the Solar CoronaCorona. resolution of existing telescopes. But ture will be offered Saturday supply the sun’s radiant energy. But to another. In addition, a special Despite being studied by physicists now there is the proposed Ad- evening, May 1, on how the sun far fewer neutrinos were observed Town Meeting entitled “Our Neu- for more than a century, the dynamic vanced Technology Solar Telescope, shines. than were predicted by theoretical trino Future” on Sunday evening at microstructure of the sun’s corona See APRIL MEETING on page 3 History in the Making San Diego Hosts Second Riordon Takes Over Biophysics Conference Media Relations Post James Riordon assumed the The APS held its second topical kind of meeting, a topical confer- helm of Media Relations at APS conference on “Opportunities in ence on an emerging field, that in February. He succeeds David Biology for Physicists” in San would prepare physicists for future Harris, who had served as Head Diego, CA, from January 30 to opportunities. Thus, a conference of Media Relations since early February 1, 2004. Robert Austin was organized focusing on the 2002. Harris left APS to lead (Princeton University) and Herb interface between physics and development of a magazine to Levine (University of California, biology and aimed at early career be produced by SLAC and San Diego) co-chaired the Steer- physicists who were interested in Fermilab for the particle ing Committee for the conference, exploring the possibilities of enter- physics community. which was aimed predominantly at ing this exciting field. That first The media relations position graduate students and postdocs in conference was held in Boston was created on the recommen- physics considering applying the September 27-29, 2002 (see APS dation of the APS Task Force At the February Executive Board meeting, for the first time in APS history the methods of physics to biological News, November 2002), and was on Informing the Public in presidential gavel passed from one woman to another. Shown here in an artist’s topics. very well received. A follow-up 1999. Randy Atkins, now at the rendering (based on a photograph taken by Michael Lubell), 2003 President In 2001, the APS Executive survey revealed a great deal of National Academy of Engineer- Myriam Sarachik (right) hands the gavel to 2004 President Helen Quinn. Sarachik Board decided that it would be ad- interest in a second conference. ing, held the position from 1999 will deliver her retiring presidential address at the April meeting in Denver. vantageous to organize a different The San Diego meeting kicked to 2001. off with a session on bio- Riordon began his career in informatics, which employs tools physics at the Naval Research Susan Ginsberg from data mining and pattern rec- Laboratory in Washington DC, INSIDE THE BELTWAY: ognition to make sense of the where he designed and built massive amounts of data collected instrumentation for a betatron A Washington Analysis by biologists on a daily basis. “Sci- accelerator that was being entists can list all the pieces of DNA, developed as an outgrowth of but we have no idea how they all the Star Wars initiative in the Cracks Begin to Show in the GOP Fortress fit together; it’s a giant jigsaw 1980’s. puzzle,” said Edward Marcotte “The intent was to build a By Michael S. Lubell, APS Director of Public Affairs (University of Texas, Austin) by high-current, lightweight, elec- way of example. While the comple- tron beam device the could be Vernon J. Ehlers, the first pro- So it came as a bit of tell our constituents tion of the Human Genome Project launched into orbit to shoot fessional physicist to serve in a surprise when he chal- about that?” Rove had represents a major step forward, down ballistic missiles,” says Congress, made unexpected news lenged President Bush’s no compelling response, there are roughly 40,000 genes in Riordon. “But at 7 tons, it during the Republican retreat held political advisor, Karl and as Ehlers noted the human genome, and one third seemed a little heavy for space in Philadelphia at the end of Rove, over the White afterward, “Nobody See BIOPHYSICS on page 6 flight. And as far as I know, they January. A fellow of the American House economic mes- does.” And that, any wise never managed to extract the Physical Society, Ehlers, who is in sage. According to CQ politico will tell you, beam from our machine.” his sixth term in the House, serves Weekly (February 14, poses a problem for HHighlights Riordon left NRL in 1990 to the 3rd District in Michigan, which 2004), the exchange office holders seeking join the Superconducting Super tilts strongly Republican. went something like this. Michael S. Lubell another term. A new feature from the APS Collider’s instrumentation group Although Ehlers is a staunch Rove told his captive As the President’s ap- Washington office, Issues and in Waxahachie, Texas as an environmentalist, the Republican audience of Republican office hold- proval ratings slip below 50% and 7 ActionsActions, tells you what’s applications physicist. There, he House leadership generally con- ers that they needed to make sure national polls show Democratic happening in Washington helped to develop beam current siders him very much a team player. their constituents got the word that presidential contender John Kerry and what you can do about it. Issues monitors and Faraday cups, and During the 107th Congress, the economy was recovering. ahead of the President among and Actions will appear from time to later specified lattices for beam according to the 2003 Almanac of Ehlers, who is not casually demon- likely voters, GOP House and Sen- time throughout the year. transfer lines between the low Politics, he supported his party’s strative, responded by holding up ate members are beginning to and medium energy booster The Back leadership on most key votes, a copy of the Grand Rapids Press wonder whether George W. Bush Page: rings—just before funding was including tax cuts, campaign with the front page headline, “10 is going to be an asset or a liability 8 Craig Davis: cut in 1992. finance reform, faith-based chari- Days, 4,600 Jobs Lost.” in the 2004 election. That uncer- Physicists When the SSC shut down, ties, trade authority and the According to CQ, Ehlers asked tainty could play a major role in and Traffic Flow Riordon returned to the Univer- commitment of troops to Iraq. Rove, “What are we supposed to See BELTWAY on page 2 See RIORDON on page 5 2 April 2004 NEWS This Month in Physics History “Robots get smarter every day, scientists, The New York Times, The Visionary while humans haven’t changed in January 18, 2004 May 2, 1519: Death of Leonardo da Vinci 35,000 years,” “High energy physicists have In 1994, multi-billionaire Bill of his day, da Vinci engaged in —Robert Park, University of Maryland, been marching into our project. Gates paid a record $30 million the practice of dissecting cadav- opposing human space travel, This is not just another telescope. for Leonardo da Vinci’s Codex ers—as quickly as possible, given Philadelphia Inquirer, January 15, 2004 It’s a physics experiment, like a Leicester. Heralded as the the lack of refrigeration and ✶✶✶ particle accelerator.” epitome of the “Renaissance unavailability of formaldehyde in “There is no end to this won- —Anthony Tyson, Bell Laboratories, man,” da Vinci was known 15th century Italy—to study derful world of experimental on a “dark matter telescope” known chiefly for artistic masterpieces human anatomy, and this cer- discovery and mental construc- as the Large Synoptic Survey like “The Last Supper” and the tainly influenced his art.
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