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Re: [Phys-l] Inertia?

And some of these people (depending on what century they lived) thought that circular motion was "steady motion." It really does depend on our training. We would do well to review Kuhn's "Structures..." every now and then to remind us of how wrong being "right" can be.
BN

John Mallinckrodt <ajm@csupomona.edu> 11/12/2008 1:21 pm >>>
Bob wrote:

Would anyone ever say "I wonder why that ball sitting on the table
doesn't just all of a sudden start moving on it's own?" How is
steady motion different? Why does it need an explanation?

I don't propose to answer your question here, only to note that some
of the most intelligent people on the planet once thought that
"steady motion" was *quite* different from "rest." If it really
doesn't seem so to you, I suspect that may have something to do with
your training.

John Mallinckrodt
Cal Poly Pomona
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