FactChecker's latest activity
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FactChecker replied to the thread I Please Explain (actually explain) The Monty Hall Problem.It's important for an explanation to clearly distinguish between the case where the host performs a "filtering selection" by... -
FactChecker replied to the thread I Please Explain (actually explain) The Monty Hall Problem.A mathematical proof (there might be others) is based on Bayes' Rule. You can use that to directly calculate the probabilities. If you...
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FactChecker reacted to PeroK's post in the thread I Please Explain (actually explain) The Monty Hall Problem with
Like.
Two points: 1) You can write a computer simulation of both games. And count how often the stick or switch decision wins. In one... -
FactChecker reacted to Baluncore's post in the thread Aero/Hydro-dynamic Streamlining as a function of medium with Like.
I disagree. Aircraft have a sharp edge convergence at the rear to reduce wake and drag. They also have a blunt or spherical nose, where...
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FactChecker reacted to jrmichler's post in the thread Aero/Hydro-dynamic Streamlining as a function of medium with Like.
There is an optimal shape for least drag for a given frontal area. There is an optimal shape for least drag for a given interior volume...
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FactChecker replied to the thread Aero/Hydro-dynamic Streamlining as a function of medium.Not just that, but the exhaust of a jet is at a very high velocity. It all depends on the location and installation of the engine(s)...
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FactChecker replied to the thread Aero/Hydro-dynamic Streamlining as a function of medium.Remember that airplanes propel themselves by pushing a stream of air behind them, whereas ground vehicles propel with the tires and not...
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FactChecker replied to the thread Cooling a processor chip.I was seriously hoping there were simplified Linux distros that made basic computer usage (email, photos, internet browsing, etc.) easy...
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It's more about familiarity. Differences makes elderly users feel insecure, and little differences adds up at the end. Even those...
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FactChecker replied to the thread I Please Explain (actually explain) The Monty Hall Problem.I disagree. In @Dale 's 100-door example, our selected door initially had a 1/100 chance of being the correct door. The other 99/100...
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FactChecker reacted to Dale's post in the thread I Please Explain (actually explain) The Monty Hall Problem with Like.
It does provide information. To see the information that it provides, consider this variant: There are 100 doors, only one has the...
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FactChecker reacted to fresh_42's post in the thread Find the polar form of a complex number with Like.
Yes, my basic remark was that squaring isn't an equivalence operation, i.e., it cannot be uniquely reversed. One has to keep this in...
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FactChecker replied to the thread Find the polar form of a complex number.In a physics application, I would be cautious about ruling out either solution unless the physics that led to the OP forced one branch...
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FactChecker reacted to fresh_42's post in the thread Find the polar form of a complex number with Like.
Just go ahead. If ##x=\pm y## and ##2xy=1## then ##2xy=\pm 2y^2=1## and ##y=\pm 1/\sqrt{2}## since ##y## is real. Note that squaring...
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FactChecker reacted to harborsparrow's post in the thread If you think having a backup is too expensive, try not having one with Like.
Of course I would not have done it in that situation. But USGS had been very heavy handed, coming in and demanding that we send them...