Steven T. Ratliff
Institutional Researcher / Professor of Physics
Northwestern College
3003 Snelling Ave. N.
St. Paul, MN 55113-1598
U. S. A.
Internet: stratliff@nwc.edu
Jack Uretsky <jlu@HEP.ANL.GOV>
Sent by: Forum for Physics Educators <PHYS-L@list1.ucc.nau.edu>
01/10/2005 07:08 PM
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Re: [Phys-L] Re: Basic Facts About Dark Energy
The trouble is that you are trying to explain a bad verbalization
of a compllcated concept. The word "energy" crept into "dark energy" by
analogy. If the observations had shown deceleration, that could have been
explained by an "excess" of mass-energy in the universe. Acceleration
seems like anti-gravity, so by analogy the publicizers looked for language
relating the observation to mass-energy. Be brave! Find your own
language to explain what is going on without using the word "energy".
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