History of Uncertainty Principle/Talk

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	Revision 18 . . November 18, 2001 1:42 pm by AxelBoldt
	Revision 17 . . (edit) November 18, 2001 6:59 am by (logged).123.179.xxx *[formatting.]**
	Revision 16 . . November 18, 2001 6:58 am by (logged).123.179.xxx
	Revision 15 . . November 18, 2001 4:05 am by AxelBoldt
	Revision 14 . . November 18, 2001 2:34 am by (logged).123.179.xxx *[Still not solved.]**
	Revision 13 . . November 17, 2001 1:41 pm by SJK
	Revision 12 . . November 17, 2001 12:39 pm by AxelBoldt
	Revision 11 . . (edit) November 17, 2001 12:31 pm by (logged).123.179.xxx *[Added Feynman's $.02 on the uncertainty principal.]**
	Revision 10 . . November 17, 2001 11:42 am by AstroNomer [about 2pi, 4pi]
	Revision 9 . . November 16, 2001 6:35 am by AxelBoldt
	Revision 8 . . November 16, 2001 6:01 am by DrBob [I vote for 4pi]
	Revision 7 . . November 16, 2001 5:41 am by AxelBoldt [Correct form of uncertainty principle]
	Revision 6 . . November 16, 2001 3:37 am by Xaonon [4 or 2?]
	Revision 5 . . September 1, 2001 9:09 pm by AxelBoldt *[Removing discussion that has been incorporated in main article]**

Difference (from prior major revision) (no other diffs)

Added: 68a69,75

::In stats, they use sigma, but it seems that physisists use Δx both for standard deviation and for the 50% range, and call both "uncertainty". If we used Δx for the 50% range and σ_x for the standard deviation, then the correct formulas would be

:::ΔxΔp ≥ h
:::σ_xσ_p ≥ h/2

::But the first of those is really pointless since it makes the unjustified assumption that the variables are normally distributed. --AxelBoldt