[extropy-chat] still no biscuit!

[Damien Broderick]

At 05:56 PM 1/19/2005 -0500, Jeff Medina wrote:

>Heisenberg's Uncertainty Principle does not conflict with conservation
>of momentum. It is a limit on measurement capabilities, not an
>indicator that momentum goes "all over the ship" when position is
>measured.

This is simply wrong (as I understand it). It seems to imply that with 
finer or smarter measuring instruments, we could home in on both properties 
simultaneously; this seems to be incorrect. What's more, if one knows 
position perfectly, momentum can be *anything at all*, and vice versa. It 
probably won't be, for stochastic reasons, but it could be.

Serafino?

Damien Broderick
[not a physicist]