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-   -   This message should ALWAYS be in top 5 (https://www.recoveryourlife.com/forum/showthread.php?t=1948)

Schleier von Dunst 30-04-2009 08:40 PM

Quote:

Originally Posted by Tuesday (Post 1583658)
The only kind of wave with a definite position is concentrated at one point, and such a wave has an indefinite wavelength. Conversely, the only kind of wave with a definite wavelength is an infinite regular periodic oscillation over all space, which has no definite position. So in quantum mechanics, there are no states that describe a particle with both a definite position and a definite momentum. The more precise the position, the less precise the momentum.

The uncertainty principle can be restated in terms of measurements, which involves collapse of the wavefunction. When the position is measured, the wavefunction collapses to a narrow bump near the measured value, and the momentum wavefunction becomes spread out. The particle's momentum is left uncertain by an amount inversely proportional to the accuracy of the position measurement. The amount of left-over uncertainty can never be reduced below the limit set by the uncertainty principle, no matter what the measurement process.

This means that the uncertainty principle is related to the observer effect, with which it is often conflated. The uncertainty principle sets a lower limit to how small the momentum disturbance in an accurate position experiment can be, and vice versa for momentum experiments.

I'll pretend I read that.

Bumping the thread in the process

Dreamer And Believer 01-05-2009 03:20 PM

top five

*poke*

Frenemies 01-05-2009 03:41 PM

*Bump*

Schleier von Dunst 01-05-2009 06:02 PM

[insert a load of bullcrap here]

Pomegranate 01-05-2009 06:59 PM

*is confused by Tuesday's post on waves*

*bumperoo*

Schleier von Dunst 01-05-2009 07:58 PM

I actually understood the bit that i read.

rockaroni 01-05-2009 11:43 PM

spleeeeeeeeeeeeeeeeeeeeeeeeeen

Pomegranate 02-05-2009 03:01 AM

Bumpty bump

ksdfjhlksajf 02-05-2009 08:54 AM

*attaches balloons to thread and watches it float away*

airyfairy 02-05-2009 09:32 AM

bump bump

lozza 02-05-2009 09:45 AM

me is board... hmmm

oooooh I see the thread is floating way up very high!!! wow

flying[star] 02-05-2009 02:04 PM

thread should float up in the sky

edizzle. 02-05-2009 06:01 PM

bump.

Olive branch 02-05-2009 07:31 PM

Bump!

Lil'MissLaLa 02-05-2009 07:44 PM

bump bump!

Olive branch 02-05-2009 08:16 PM

Up you go!!!

Frenemies 03-05-2009 02:33 AM

*Kicks*

Tuesday 03-05-2009 05:43 AM

Twas slipping.

ksdfjhlksajf 03-05-2009 06:48 AM

Why can't it stay up in the top 5 :(

lozza 03-05-2009 10:43 AM

it is now me thinks??? hmmm


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