Re: Heisenberg Uncertainty Principle
From: Y. T. (ytyourclothes_at_p.zapto.org)
Date: 09/28/04
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Date: 27 Sep 2004 21:30:05 -0700
Guy Macon <http://www.guymacon.com> wrote in message news:<10la830a59dnuba@news.supernews.com>...
> A person in another newsgroup (sci.electronics.design, 25
> Sep 2004 06:22:09 GMT, <3SE4yuAR6QVBFwRi@jmwa.demon.co.uk> )
> told me the following:
>
> "The Heisenberg Uncertainty Principle still exists but it DOESN'T mean
> quite what Heisenberg thought it did. ... It IS possible to determine
> both position and velocity more precisely that the Heisenberg
> Uncertainty Principle stipulates. The Heisenberg Uncertainty Principle
> applies to the results of a large number of measurements."
>
> This is different from what I understood about the Heisenberg
> Uncertainty Principle. I thought that it applies to individual
> particles, and that the more exactly you measure the position
> of a particle the less you know about the velocity, and vice versa.
>
> Which one of us is mistaken?
As one could have expected, you got a number of half-baked answers.
Unsurprising.
What many people do find surprising is the fact that the Heisenberg
uncertainty principle isn't a statement about the universe, really,
and at most marginally a statement about measurement.
It is really a statement about variables. And how macroscopically
useful variables aren't the cleverest choice when dealing with
microscopic systems.
This here has a quote from Feynman himsef:
http://groups.google.com/groups?as_umsgid= (I hope this is coming though - the link might be wrapped. But I guess
cordially
Y.T.
a 'Doc Brown' kinda guy can figure that out, eh? ;) )
--
Remove YourClothes before you email me.
Relevant Pages
... > "The Heisenberg Uncertainty Principle still exists but it DOESN'T mean ... > quite what Heisenberg thought it did. ... just that the next time you do that, on an identically prepared system, ... bunches of pairs of observations scatter according to the Uncertainty ...
(sci.physics)
... >> quite what Heisenberg thought it did. ... The Heisenberg Uncertainty Principle ... >> of a particle the less you know about the velocity, ... the wave function does not refer to an ensemble. ...
(sci.physics)
... The Heisenberg Uncertainty Principle ... >>of a particle the less you know about the velocity, ... consequences of the HUP? ...
(sci.physics)
... > simultaneously determine the position and momentum of a particle.") ... >>Heisenberg thought it meant. ... > particle at a particular time with arbitrary accuracy. ... the Uncertainty Principle will hold true. ...
(sci.physics)
... How is He omniscient when Werner Heisenberg has proven, ... that the position of some particles cannot be ... Grossly simplifying, he said it is not possible to ... some sort of cruel joke, he doesn't intend to, but instead intends us to be ...
(uk.legal)
