sci.physics.electromag

On Mar 20, 11:51=A0pm, "FrediFizzx" wrote:
> "maxwell" wrote in message
>
> news:22a9b163-87e8-4a83-a2e1-21a176f97f13@u10g2000prn.googlegroups.com...
> On Mar 16, 9:14 am, Benj wrote:
>
> > On Mar 16, 2:46 am, khrapko...@hotmail.com wrote:
>
> > > Dear Benj: What's the matter? What's the thread? Fields are
> > > obviously
> > > real and mathematics is an idea.
> > > Radi
>
> > Dear Radi,
> > Forces are obviously real and fields are a mathematical idea.
> > Benj
>
> Sorry, guys, even forces also not real. =A0You are just extrapolating
> from the time-averaged muscular sensations we all experience. =A0Force
> is also a mathematically defined concept (see Newton's Principia).
> --------------------------------
>
> Maxwell, you are quickly going off the deep end. ;-) =A0Pulleys and
> weights can be used to measure forces; no muscles need to be involved.
> The mathematical description of forces seem to fit the reality very
> well.
>
> Best,
>
> Fred Diether
> Co-moderator =A0sci.physics.foundations
Not at all. Pulleys etc rely on a theory of gravity that IS linked to
our macro sensations of effort. Incidentally, why do our muscles get
tired when they hold up a weight that never moves? No displacement,
no work, no energy - right?