Re: Simple explanations. Was: what are the labs for?

[herbgottlieb@juno.com (Herbert H. Gottlieb)]

 "Donald E. Simanek" <dsimanek@eagle.lhup.edu> writes:
> The problem with mechanical models is that you first must understand
> mechanics. The problem with visual models is that some things can't be
> visualized. 

I remember having such problems myself when I was first 
introduced to electric circuits. Ohm's Law was easy for me to 
understand.... but I had a great deal of trouble understanding
the analogy that involved water pressure, water currents, and 
resistance to current flow in narrow pipes.  However the fact 
that I understood Ohm's Law made it a bit easier for me
to figure out how plumbing systems work.

Herb Gottlieb from New York City
(Where we are having much more trouble with our water and sewer 
systems than with our electricity)

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