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Re: Flashlight



Thanks Tom, I did correct this (ond other little errors). Ludwik.

Tom McDonald wrote:

In paragraph 9, the idea of NaCl forming Na+ and Cl- ions in water slightly
conflicts with the way this process is presented in chemistry classes. I
believe chemists consider solid NaCl to be an ionic crystal lattice and
would describe its interaction with water as a dissociation of Na+ and Cl-
ions that already exist rather than the creation of those ions from neutral
Na and Cl atoms. Perhaps, when focusing on ions, the process would be
better described as solid Na+Cl- producing Na+ and Cl- ions after
interacting with water.

Typo in paragraph 14: pomp for pump.

Tom McDonald
Harbor Springs High School
Harbor Springs, Michigan

----- Original Message -----
From: Ludwik Kowalski <kowalskiL@MAIL.MONTCLAIR.EDU>

As a pedagogical exercise I plan to create several short essays on basic
ideas
of electricity and magnetism. The draft of the first item is on my web
site at:

http://alpha.montclair.edu/~kowalskiL/electr/flash.html

Critical comments and suggestions will be appreciated, either openly or in
private. The paragraphs have been numbered to facilitate comments.

Ludwik KowalskiL ---> kowalskiL@mail.montclair.edu