Recent content by caribou

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    Can Schrodinger's Cat Truly Be Dead and Alive at the Same Time?

    The cat is too big and interacting with too much in the universe for it to keep up its magic trick for more than the tiniest instant. :biggrin:
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    Site with leading physicists' quotes on QM?

    As I'm sure you know and I just learned, there are plenty of quotes around but some are misattributed and most are without sources. This are a few quotes with sources if you look for the physicists amongst the mathematicians here: http://www-gap.dcs.st-and.ac.uk/~history/Quotations/ I...
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    How do you entangle particles?

    Hartle and Hawking's famous wave-function of the universe has universal entanglement and all the particles within it have different levels of entanglement.
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    Schrödinger's Cat Explained: Understanding the Famous Thought Experiment

    Yeah, it's all about quantum theory predicting two physically mixed realities and yet we experience one physical reality which isn't mixed with another one and asking why that is. :smile:
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    How many famous paradoxes in Quantum Mechanic?

    A few more... von Neumann's measurement pointer superposition (later illustrated by Schrodinger as the cat paradox) and the related "von Neumann chain" created by measuring the measuring device with more and measuring devices so the problem spreads... Indirect Measurement paradox...
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    Deterministic quantum mechanics?

    I've seen it called "quasiclassical" to reflect that everything is ultimately quantum in nature but appears classical to us above extremely small scales. :smile:
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    Number of parallel universes formed at each measurement

    I had actually been meaning to clarify just for myself what is essentially the same as Mr. Tambourine Man's question about Everett's interpretation and splitting "worlds" over time. Taken to its logical extreme, couldn't it be said that we could have a particle emitted at an infinity of...
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    Schroedinger's test-tube babies

    Your thought experiment is fine in the sense that checking on the teenager in 15 years is essentially similar to waiting a very long time to open the box and check on Schrodinger's cat. The question of when the mixed-up physical possibilities of "teenager" and "no teenager" became separate...
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    Everything in nature is truly random and unpredictable

    As we'd expect, some people are happy with having fundamental theory based on chance events but other people want to find a cause for why one thing happens and not another. Most famously, Einstein didn't like the idea of using chance events as fundamental. Hidden particles is one of the...
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    University of Australia Slows Light to 670 mph

    Yup, it's called Cherenkov radiation: http://en.wikipedia.org/wiki/Cherenkov_effect
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    Are Parallel Universes and Dimensions Real or Just Theoretical Possibilities?

    With these theoretical parallel universes it's impossible to tell if they are actually real or are simply just theoretical possibilities which don't actually happen for some reason we don't know. There is a suggestion that the first thing which happened in the universe was that these...
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    Some questions about Schroding's cat

    It tells you that at the webpage I mentioned: The original article appeared in the German magazine Naturwissenschaften ("Natural Sciences") in 1935: E. Schrödinger: "Die gegenwärtige Situation in der Quantenmechanik" ("The present situation in quantum mechanics"), Naturwissenschaften, 48...
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    Some questions about Schroding's cat

    You will find most of your answers here: http://en.wikipedia.org/wiki/Schrodingers_cat You can find pictures and diagrams by using search engines like Google. Tell us if you need more. :smile:
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    Experience a Fascinating Life Webcast on Dec. 1st with Einstein at PhysicsWeb

    You can watch it again: http://beyond-einstein.web.cern.ch/beyond-einstein/
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    Experience a Fascinating Life Webcast on Dec. 1st with Einstein at PhysicsWeb

    I was just about to post this too... but somewhat later. :-p Sounds pretty cool. :biggrin: We can send in questions so, now, what can I ask that won't seem stupid... :rolleyes:
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