Boost logo

Boost :

From: Jonathan Turkanis (technews_at_[hidden])
Date: 2004-01-04 20:28:50

"David B. Held" <dheld_at_[hidden]> wrote in message
> "Andy Little" <andy_at_[hidden]> wrote in message
> news:bta7us$bkg$
> > [...]
> > A physical-quantity is made of powers of The Seven dimensions:
> > length, mass, time, temperature, current, amount-of-substance,
> > luminous intensity.
> > (aside -please not lets get complicated :-) )
> > [...]
> > There are only 7 dimensions. Thats it.
> > [...]
> Surely this is ridiculous? I can see an extreme reductionist arguing
> that you only need dimensions for space, time, and the fundamental
> forces. And if you really want to get anal, then you could equate
> space and time, and end up with four dimensions (distance, mass,
> electroweak charge, strong charge). Everything else is derived,
> right? And if you buy superstring theory or quantum gravity, then
> you could probably get away with just one or two dimensions, right?
> But how useful is that? Who cares if luminous intensity is really
> just photons/area? It's still a useful dimension, right? And even
> though temperature and energy are related, I think there's a lot of
> physicists that would be unhappy to not have a natural energy
> dimension without having to state it in derived terms. Isn't it about
> expressing the solution in the problem domain? Physicists write
> equations with Joules and Watts, not just N m and lbs.-ft./s.
> Dave


Even if we were happy to be reductionists, would we really want to have to
update the library everytime the Fundamental Theory of Everything changes?
I'm just a casual observer, but I think the Fundamental Theory of Everything
may have a faster release cycle than boost. :)


Boost list run by bdawes at, gregod at, cpdaniel at, john at