March Feature Articles:
Adjusting the Values of the Fundamental Constants
The best values of the fundamental constants can rarely be determined by a direct measurement. Instead, they are usually found at the end of a chain of experimental observations and theoretical relationships -- Peter J. Mohr and Barry N. Taylor

Time Measurement at the Millennium
The latest clocks use a single ion to measure time with an anticipated precision of one part in 10¹⁸ -- James C. Bergquist, Steven R. Jefferts, and David J. Wineland

Joseph Loschmidt, Physicist and Chemist
When atoms and molecules were still quite hypothetical, Loschmidt used kinetic theory to get the first reasonable estimate of molecular size -- Alfred Bader and Leonard Parker

Archive from February 2001

Archive from January 2001

Archive from December 2000
Special issue: Physics and National Security

We are proud to present a collection of articles from our archives related to the March issue. Last update: 1 March 2001.

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Fundamental Constants

	Our knowledge of G gets worse, then better Bertram Schwarzschild July 2000 p21
	Optical frequency measurement is getting a lot more precise Bertram Schwarzschild December 1997 p19-21
	The Fundamental Physical Constants Peter J. Mohr and Barry N. Taylor August 2000 Buyer's Guide
	Adiabatic Quantum Electron Pump Produces DC Current Gloria B. Lubkin June 1999 p19-21

Line and Frequency Measurement

	Femtosecond Comb Technique Vastly Simplifies Optical Frequency Measurements Gloria B. Lubkin June 2000 p19-21
	Laser Cooling Part1 Part2 David J. Wineland and Wayne M. Itano June 1987 page 30-40
	New Mechanisms For Laser Cooling Part1 Part2 Part3 Claude N. Cohen-Tannoudji and William D. Phillips October 1990 p33-40
	Apparatus Upended: A Short History of the Fountain A-Clock A letter by Robert A. Naumann and H. Henry Stroke May 1996, page 89-90
	Clinton philosophy transforms NIST into partner for industry Denis F. Cioffi November 1994 p75-77

Researchers Stop, Store, and Retrieve Photons-or at Least the Information They Carry:
	Ultraslow Light Pulse Propagation Observed in Atoms--Both Cold and Hot Richard Fitzgerald July 1999 p17-18

Ultrafast X-ray Diffraction Tracks Molecular Shape-Shifting:
	Nobel Prize Goes to Zewail for Developing Femtochemistry Bertram Schwarzschild December 1999, p19-21

 

© 2001 American Institute of Physics