Open Questions: Fundamental Constants
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Sites with general resources
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Chris Churchill's Fine Structure Constant Page
- Information on the Quasar Absorption Line Fine Structure
Experiment, which indicates possible changes in the fine
structure consant over time.
-
Fundamental Physical Constants from NIST
- Offers general information on physical constants, including
best known values, a
bibliography, and
background information.
-
Fundamental Physical Constants
- Short, single-page list of important constants and their
values.
Surveys, overviews, tutorials
-
Fundamental physical constant
- Article from
Wikipedia.
See also
Fine-structure constant.
-
Are the fundamental constants of nature really constant?
- Brief but informative overview, with references, by
Tamara Davis.
-
What is the fine-structure constant?
- Brief answer from
Ask the Experts at Physlink.com.
-
How Many Fundamental Constants Are There?
- Informative June 2002 article by
John Baez.
-
Variable Fundamental Constants?
- Research of Michael T. Murphy on quasar absorption lines and
the fine structure constant.
-
Are the laws of nature changing with time?
- April 2003 article from
Physics World, by
John Webb.
"Precise measurements on the light from distant quasars suggest
that the value of the fine-structure constant may have changed
over the history of the universe. If confirmed, the results
will be of enormous significance for the foundations of physics."
-
Life, the cosmos and everything
- October 2001 article from
Physics World, by
Bernard Carr concerning a conference dealing with the anthropic
principle, multiverse cosmologies, the many-worlds interpretation
of quantum mechanics, fundamental constants, quantum cosmology,
and even more exotic theories.
-
When constants are not constant
- Abstract of an October 2001 article from
Physics World, by
Chris L. Carilli on recent claims that the fine structure
constant may have changed with time.
-
Theory, experiment and fine structure
- July 2000 article from
Physics World, by
Jonathan Sapirstein about measurement of the fine structure
constant.
-
Inconstant Constants
- Brief November 1998 article from Scientific American
on experimental results which suggest that the fine structure
constant isn't entirely constant.
-
Constant Changes
Peter Weiss
Science News, October 6, 2001, pp. 222-223
- There is now evidence that the fine structure constant may have
differed in the universe of 12 billion years ago from its current
value, but by an amount less than 1 part in 100,000.
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Copyright © 2002 by Charles Daney, All Rights Reserved