.Scott's latest activity
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.Scott replied to the thread Not Penrose.I don't see that much mystery.
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.Scott replied to the thread Not Penrose.I think Penrose is excessively wordy on the matter. In his first book, there's one chapter after another where he uses different...
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.Scott replied to the thread Not Penrose.Roger Penrose has not only stated that the hard component of consciousness is basic Physics, he has authored three books on the subject...
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They did it with Richard Feynman and now they're doing it with Sir Roger Penrose - and I find it irritating. There is now a youtube...
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.Scott replied to the thread Another nice mech problem.If you assume that the paper tape is zero mass and zero thickness, then the force applied to the left side of the spool can only be the...
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.Scott replied to the thread Hi everyone. Here to learn and pick your brain..Hello Dave, welcome to these forums. I'm way ahead of you - went senile decades ago.
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.Scott replied to the thread Undergrad The countability paradox of computable numbers.Well, thanks @Warp , you got me thinking. AS a staring point, I will grant you an ## \aleph_0 ## list of terminating algorithms that...
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.Scott reacted to Warp's post in the thread Undergrad The countability paradox of computable numbers with
Like.
It has to be a terminating algorithm that computes the number up to a given precision (which can be arbitrarily large). The Cantor's... -
.Scott replied to the thread Undergrad The countability paradox of computable numbers.That's a good point. Cantor's diagonal argument is not iron-clad. Bertrand Russell complained about it in Principia Mathematica, as...
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.Scott replied to the thread Undergrad The countability paradox of computable numbers.A computable number must be the result of a "terminating algorithm". An algorithm that is required to examine each element in a list of...
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.Scott reacted to FactChecker's post in the thread Undergrad Question about increasing laser power with Like.
You are asking if we do impossible things, can impossible things happen. Yes.
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.Scott replied to the thread Undergrad Question about increasing laser power.You're not going to generate a laser with "infinite energy". And, if you do, those safety goggles won't do you any good. When you ask...
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.Scott replied to the thread Undergrad Question about increasing laser power.Take the Helium Neon laser as an example. A current is applied across the gas mixture at a voltage over 1000V. That discharge excites...
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.Scott replied to the thread Southern Lights from Space.It's unbelievable to think that somewhere in this universe is a planet that really looks like that.
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A video of the Aurora Australis (Southern Lights) was captured from the SpaceX capsule Dragon.
