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| From | moroney@world.std.spaamtrap.com (Michael Moroney) |
| Newsgroups | sci.physics |
| Subject | Re: If you can't measure it, is it still science ? ! |
| Date | Sat, 2 Apr 2016 19:03:20 +0000 (UTC) |
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Jeff-Relf.Me <@.> writes: >You (MichaelMoroney) replied (to me): >> > According to general relativity, >> > no path in spacetime can leave the singularity within a black hole. >> >> No information about the position/momentum measurements can make >> it outside from inside. All our measurements must be from a distance, and >> we cannot see "inside" to sense exactly where it is and where it is going. >If you can't measure it, is it still science ? ! >Without measurement, how would one know if >the Heisenberg Uncertainty Principle was violated or not ? If you can't measure it, the Heisenberg Uncertainty Principle doesn't even apply! HUP tells you that you cannot MEASURE both position and momentum at the same time to more than a certain accuracy. It does NOT put restrictions on the actual accuracy of either position or momentum beyond that. For example, in trying to determine whether an electron is really point-like, we've measured its diameter to within 10^-19 meters, a really really small number. Maybe even smaller than this by now. This doesn't violate HUP as any attempt to measure its momentum at the same time would result in a rather large number.
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Re: If you can't measure it, is it still science ? ! "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2016-04-01 20:00 -0700
Re: If you can't measure it, is it still science ? ! moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-02 19:03 +0000
Re: If you can't measure it, is it still science ? ! moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-03 05:04 +0000
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