From: David Abrahams (dave_at_[hidden])
Date: 2004-01-05 10:17:58
"David B. Held" <dheld_at_[hidden]> writes:
> "Andy Little" <andy_at_[hidden]> wrote in message
>> 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?
Right. Reductionism is dangerous, even to Physics. Get ahold of
Phil Anderson's paper called "More is Different" if you're
interested (Science, Aug 4, 1972).
-- Dave Abrahams Boost Consulting www.boost-consulting.com
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