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Krypton
83.798 g/6.022x10^23

Registered: Nov 2003
Location: Texas
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| quote: | Originally posted by Zild
You can swear whatever you want, but I'm almost finished with my chemistry degree and I know for a fact that the uncertainty principle only states that you cannot measure the momentum and position at the same time. And it isn't because electrons are in more than one place at a time.
I've taken statistical mechanics so I understand the implications of the electron shell. The electron shell diagram shows areas where you have a high probability of finding the electron. Electrons are fermions so you use the Fermi-Dirac distribution for calculations. It is all based on probability and statistics but that doesn't mean something can be in two places at the same time. |
What about this experiment?
| quote: | The double-slit was voted the most beautiful experiment of all time in a 2002 poll by Physics World, published by England’s Institute of Physics. Although each electron seems to go alone through one of the two slits, at the end a wavelike interference pattern is created, as if the electron split while it went through the slit, but then was subsequently re-unified. But if one of the slits is closed, or an observer sees which slit the electron went through, then it behaves like a perfectly normal particle. That particle is only at one position at one time, but not at the same time. So, depending on how the experiment is carried out, the electron is either at position A, position B, or at both at the same time.
But Bohr’s Complementarity Principle, which explains this ambiguity, requires that one can only observe one of the two electron manifestations at any given time - either as a wave or a particle, but not both simultaneously. This remains a certainty in every experiment, despite all the ambiguity in quantum physics. Either a system is in a state of "both/and" like a wave, or "either/or" like a particle, relating to its localisation. This is, in principle, a consequence of Heisenberg’s uncertainty principle, which says that given a complementary pair of measurements - for example, position and momentum - only one can be determined exactly at the same time. Information about the other measurement is lost, proportionally. |
___________________
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Nov-20-2007 02:20
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zoogla
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This thread delivers...
...electrons that appear to be in 2 places at the same time but are really not.
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Nov-20-2007 15:30
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