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On Monday, Feb 16, 2004, Bernard Cleyet wrote:

Panzers to L.!
How did you do it?
bc who found the evil =3D20 's in the most confusing places.

1) I do not know. What seems to be working fine
sometimes does not work on other occasions.
It is too bad that Phys-L is on an archaic server.
It would be great to have it on a server accepting
the rtf format and allowing other conveniences.

2) Back to the subject of this thread. Those who do
not want to deal with the concept of screening
in condensed matter might ask students "why do
fusion reactions in ionized gasses occur at stellar
temperatures only?" This will naturally lead to two
interesting topics outside electrostatics: the QM
tunneling and the Maxwellian distribution of kinetic
energies of ions at various temperatures. Students
love digressions but one must make sure that the
main topic is electrostatics.

Too many digressions may interfere with learning
along a chosen track, as most of us know.
Ludwik Kowalski