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To: grusum who wrote (37840)5/21/2006 8:36:38 PM
From: koan  Read Replies (1) | Respond to of 39344
 
Well, you seem to know your stuff. You say below:

"HUP states that the more accurately position is known, the less accurate momentum can be known. HUP is just a limitation of measurement."

But that is the whole point, one cannot measure anything exactly, or predict anything exactly.

Richard Feynman: "There is a deep mystery at the heart of quantum mechanics. Nobody really understands it"

Everyone I have read agrees with that.

Cheers



To: grusum who wrote (37840)5/21/2006 10:01:21 PM
From: jackjc  Read Replies (2) | Respond to of 39344
 
Not a good analogy.

It is the act of measuring that changes the velocity.
Intercepting the object with photons (necessary) introduces
an energy interaction and the motion has been changed.

High energy photons define position better but change momentum
more.

More massive objects like baseballs don't receive a measurable
momentum change from viewing.


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