FactChecker's latest activity
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FactChecker replied to the thread I Apparent counterexample to Cauchy-Goursat theorem (Complex Analysis).The theorem specifies that the domain must be simply connected. Your "counter example" fails to remain within a simply-connected domain... -
FactChecker replied to the thread I The Einstein Clock aka Light Clock.If they record identical measurements of position and time for the sphere of light, but their measurement systems of position and time...
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FactChecker reacted to DaveE's post in the thread Severe Turbulence for Delta Flight 56 (NTSB report) with
Like.
More like 1,000 ft in 20 seconds, I think. The truth is out there... -
FactChecker reacted to Haborix's post in the thread Severe Turbulence for Delta Flight 56 (NTSB report) with Like.
I can do without ever experiencing that! On a more positive, it is amazing how robust commercial planes are to be able to withstand such...
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FactChecker reacted to Hornbein's post in the thread Severe Turbulence for Delta Flight 56 (NTSB report) with
Wow.
During the flight, NTSB noted, the plane at one point reached well above maximum operating speed and lifted the aircraft about 10,000... -
Hi all, thanks a lot for the explanations. I was able to follow the rest of the explanation in the text-book once I was able to make...
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FactChecker replied to the thread I A variant of the Monty Hall problem.Good point. This brings in aspects of game theory. If the host plays games to offer a switch more often when the contestant's door is a...
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I think the point was the complication that Monty does not always give you the choice to switch. This is news to me! That adds a new...
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FactChecker reacted to Ibix's post in the thread I Please Explain (actually explain) The Monty Hall Problem with Like.
I actually initially convinced myself by drawing the probability tree: Step 1: pick a door to hide the prize (3 equi-probable branches)...
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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...
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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...
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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)...