FactChecker's latest activity
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FactChecker reacted to boneh3ad's post in the thread Can someone please recommend basic reading on wind tunnels? with
Informative.
The bible for wind tunnel design: https://www.wiley.com/en-us/Low-Speed+Wind+Tunnel+Testing,+3rd+Edition-p-9780471557746 An extremely... -
FactChecker reacted to berkeman's post in the thread Is this the right place for technical review of sci-fi concepts? with
Like.
No, no! That's how I figured out where to move it. :smile: -
FactChecker reacted to DaveC426913's post in the thread Is this the right place for technical review of sci-fi concepts? with Like.
https://www.physicsforums.com/forums/sci-fi-writing-and-world-building.220/ :wink:
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FactChecker reacted to vela's post in the thread Volume with spherical coordinates with Informative.
I'm pretty sure the OP means the surface in R3 defined by ##\theta = \pi/3## in spherical coordinates, which is a cone, and the sphere...
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I have some solemn news to report. Many in the community had been wondering where the prolific @Vanadium 50 has been. V50 hasn't posted...
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FactChecker replied to the thread Can someone please recommend basic reading on wind tunnels?.Is it even possible to gather "qualitative" information without force measurements, or are those techniques just used to visualize and...
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This is only relevant for large input lengths. An example. Strassen's matrix multiplication has brought the number of multiplications...
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FactChecker reacted to DaveC426913's post in the thread I Polynomial vs. Exponential time with
Agree.
Guessing OP is referring to solving times, like sorting algorithms. Algorithms with polynomial run times proceed at a manageable rate... -
FactChecker reacted to Office_Shredder's post in the thread I A variant of the Monty Hall problem with Informative.
By jointly optimal I meant a nash equilibrium.
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FactChecker reacted to berkeman's post in the thread NASA Currently trying to build a rocket to launch into space with Like.
Welcome to PF. Your Profile shows that you are in the UK, so I did a Google search on amateur rocketry clubs in the UK and got lots of...
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FactChecker replied to the thread I A variant of the Monty Hall problem.I would not call that jointly optimal. It's only that simple if the strategies are pre-determined and they know each other's strategy...
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FactChecker replied to the thread First AI #1 Hit.Mixed feelings. On one hand, a lot of the complainers are using autotune, so how is that better? On the other hand, how does this...
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FactChecker reacted to ohwilleke's post in the thread I Question of accuracy of galactic collision simulations with Like.
The reason that this particular example is so hard is not because it is, fundamentally, a huge many body problem, but because the...
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FactChecker reacted to ohwilleke's post in the thread I Question of accuracy of galactic collision simulations with Like.
After giving it some more thought, the reason that I think that the simulation rather than the astronomy observations are the main...
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FactChecker replied to the thread I Question of accuracy of galactic collision simulations.I spent my entire career in simulation (not this type). This strikes me as an exceedingly difficult subject to simulate. The numbers...
