Features
		Special Issue: The Energy Challenge
		As a commodity, energy presents a global challenge with many aspects: technical, environmental, economic, social, and political. Each aspect has many parts, there are many feedback loops within and between them, and they look different when viewed nationally or internationally. Though daunting, the challenge can be met. -- Stephen G. Benka
		Meeting Energy Challenges: Technology and Policy
		Effectively addressing today's energy challenges requires advanced technologies along with policies that influence economic markets while advancing the public good -- Ernest J. Moniz and Melanie A. Kenderdine
		Physics in Oil Exploration
		Petroleum engineers use a variety of physical techniques to find and exploit petroleum reservoirs in increasingly remote and complicated geological environments -- Brian Clark and Robert Kleinberg
		New Designs for the Nuclear Renaissance
		The next generation of nuclear power plants could help satisfy the world's energy needs and support a hydrogen-based economy -- Gail H. Marcus and Alan E. Levin
		Renewable Energy: Progress and Prospects
		After 25 years of dramatic technical progress, renewable energy technologies now have the potential to become major contributors to US and global energy supplies -- Samuel F. Baldwin
		Hydrogen: The Fuel of the Future?
		Available hydrogen technologies can dramatically reduce pollution and greenhouse gas emissions. But the switch to hydrogen fuel will require strong political will -- Joan M. Ogden
Web Departments
		Readings from the Physics Today Archive
Departments
		Physics Update
	Letters
		The Grid Grew from Physicists' Computing Needs
		Sprites and Elves Are Seen but Seldom Quantified
		Edward Condon Remembered
		Physics Fills the Gap for Java Man
		Correction
	Search & Discovery
		Skepticism Greets Claim of Bubble Fusion
		Researchers report evidence that fusion has occurred within collapsing bubbles of deuterium-containing vapor. Critics would like to see more definitive proof.
		How Fast Could Tyrannosaurus rex Run?
		A new biomechanics model finds that T. rex lacked large enough leg muscles to run fast.
		Sodium Detected in the Atmosphere of an Extrasolar Planet
		As predicted by models, sodium atoms in the atmosphere of a remote planet are abundant enough that researchers have been able to see them. But they're also scarce enough to prompt some rethinking of the models.
		Correction
		We wish to clarify our recent news story about an important sign correction in the standard-model calculation of the muon's anomalous magnetic moment (more).
	Issues & Events
		University Research Reactors Compete for DOE Handouts
		Are nuclear science and engineering poised to rebound?
		Food Meets Physics at Irradiation Facility
		The Electron Beam Food Research Facility opening late this spring at Texas A&M University in College Station weds commercial marketing research with studies on food irradiation.
		DOE Will Stop Funding Particle Physics at Brookhaven Accelerator
		If AGS funding is restricted to nuclear physics, two ongoing experiments will be abruptly axed.
		Bonanza for Selected Science in Ireland
		Ireland's new NSF-inspired funding agency has more money than scientists had dared hope for.
		Physics Project Scores in Siemens Westinghouse Competition
		Seniors Shira Billet and Dora Sosnowik at the Stella K. Abram High School for Girls in Hewlett Bay Park, New York, were awarded first place in the team category of the 2001 Siemens Westinghouse Science and Technology Competition.
		New Medal Named for Rosalind Franklin
		The UK is honoring crystallographer Rosalind Franklin (1920 - 58) by creating a medal in her name to recognize innovations in science. The new medal--the Royal Society's first to carry a woman's name--has a purse worth £30 000 (approximately $42 000).
		News Notes
		Bush's answer to Kyoto; Plutonium conversion; New degrees for new careers
		Web Watch
		X-ray Spectrum of Elements on the Periodic Table; Optics for Kids; NASA's Astrophysics Data System
	Special Report
		Terrorism Drives Bush R&D Money to Defense and NIH; Other Science Funding Flat in Fiscal 2003
		The physical sciences are an also-ran in the Bush administration's priorities for science spending, but many in Congress hope to restore balance to the government's science portfolio.
	Books
		Climbing the Mountain: The Scientific Biography of Julian Schwinger, J. Mehra and K. A. Milton (reviewed by T. Y. Cao)
		Hitler's Gift: The True Story of the Scientists Expelled by the Nazi Regime, J. Medawar and D. Pyke (reviewed by G. Holton)
		The Universe in a Nutshell, S. Hawking (reviewed by C. D. Impey)
		Megawatts and Megatons: A Turning Point in the Nuclear Age?, R. L. Garwin and G. Charpak (reviewed by J. F. Ahearne)
		Things a Computer Scientist Rarely Talks About, D. E. Knuth (reviewed by S. A. Teukolsky)
		Helium Three, E. R. Dobbs (reviewed by R. B. Hallock)
		New Books
	New Products
	We Hear That
		Educators Honored by AAPT
		Young International Scientists Garner New Award
		Franklin Medals to Be Awarded
		OSA Presents Awards for Engineering Excellence
		AGU President-Elect for 2002 is Orcutt
		In Brief
	Obituaries
		Victor Iosifovich Belinicher
		William McCullough MacDonald
		Marcellus Lee 'Marc' Wiedenbeck
	Job Opportunities

© 2002 American Institute of Physics