Recent content by .Scott
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B Opposite law propose
I agree with the OP - it's not Physics. Should we move this to "General Discussions"? That said, how does "inverse" relate to "multiverse"?- .Scott
- Post #2
- Forum: Other Physics Topics
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Should I write a dream sequence?
A dream sequence could focus on what the protagonist is worried about - and incidentally introduce whatever story points you need to make. I remember a report of the modern analysis of many dreams from Ancient Egypt. The author's conclusion was that being misunderstood was the most prevalent...- .Scott
- Post #2
- Forum: Sci-Fi Writing and World Building
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History Going to the Catskills 1902
Since the photo was taken in 1902, we know that panchromatic film was not used. So anything red on black or blue/violet on white will not be rendered. On the other hand, it is a very high grain film - perhaps higher than one would could get with most off-the-shelf color digital or film cameras...- .Scott
- Post #2
- Forum: Art, Music, History, and Linguistics
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I Bell's Theorem looks like Monty Hall problem in reverse
Did Bell get his idea from "these very puzzles"? Although the Game Show "Let's Make a Deal" (1963) predates Bell's Scientific American article (1964), the "Monty Hall problem" is attributed to Steve Selvin who described it in a letter in 1975. But "these very puzzles" might include the "3...- .Scott
- Post #5
- Forum: Set Theory, Logic, Probability, Statistics
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I Bell's Theorem looks like Monty Hall problem in reverse
In the Monty Hall problem, there is a correct door and with Monty's inadvertent help you are improving your chance of ending up with that correct choice. With Bell's inequality, you have two measurement stations and for each particle pair, each station randomly selects one those three possible...- .Scott
- Post #2
- Forum: Set Theory, Logic, Probability, Statistics
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B Rutgers finds a transparent Einstein Cross - apparently a dark matter "halo"
There's two questions here: There are galaxies that are light on dark matter (NASA article). The explanations provided in that article is either that the dark matter was stripped away by tidal force when it collided with another galaxy - or that the galaxy in question is closer than we think... -
B Rutgers finds a transparent Einstein Cross - apparently a dark matter "halo"
Not at all. The bulge itself is the result of visible matter colliding with visible matter. The dark matter "halo" would be the result of the dark matter's failure to participate in those collisions. Basically (as the theory goes), in a galaxy such as the Milky Way, both dark and visible... -
B Rutgers finds a transparent Einstein Cross - apparently a dark matter "halo"
For clarity: Many observations show dark matter coexisting with visible matter. The dark matter conversation started when inventories of visible galaxies failed to tally enough mass (gravitation) to keep spinning galaxies intact. Separable? Yes, absolutely. Any electromagnetic force that... -
Misc. Improving the accuracy of a grandfather clock
I think you already realize that putting this into high-speed mode will never be required. But let's check that pump you plan on using: Let's say that your pendulum is effectively a mass of 1Kg at the distance of where your water (ie, your control mass) will end up. Given the assumptions I...- .Scott
- Post #13
- Forum: DIY Projects
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Misc. Improving the accuracy of a grandfather clock
You can look at it on every swing. But under normal conditions, it will not result in any control change. Each time you detect a swing, you can check whether that swing occurred within the expected range of times. As several seconds go by without a swing, you will make corrections aimed at...- .Scott
- Post #11
- Forum: DIY Projects
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Misc. Improving the accuracy of a grandfather clock
Air will not "bubble" through the tubing readily. Any bubble will tend to move with the water. Water can move across the bubble through evaporation and wetting the tube. Of course, the water itself can hold some dissolved air. Most importantly, you need to concern yourself with the "range of...- .Scott
- Post #9
- Forum: DIY Projects
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Misc. Improving the accuracy of a grandfather clock
The OP wants this to look like it is telling time based on the natural periodic swinging of the pendulum - with minimal changes to the clock. And, I am guessing that he also wants it to appear as though there are no external timing devices that are controlling the clock. I would not use fluids...- .Scott
- Post #5
- Forum: DIY Projects
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Misc. Improving the accuracy of a grandfather clock
Based on your description, I'm not sure how your pump can both speed up and slow down the pendulum. But, in broad terms, what you are attempting to implement is a PID Controller. PID: proportional, integral, derivative I took a peak at this 22-minute video and (based on the first 90 seconds)...- .Scott
- Post #2
- Forum: DIY Projects
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The Great Crash of Amazon AWS and Reduction in Staff in Favor of AI
Just to be clear, the two items (RIF and outage) have no obvious connection. Except, perhaps, that if AI had handled the DNS maintenance, the mistake might have been even worse. I was looking for an old quotation that went something like "computers can make more mistakes in a second than a...- .Scott
- Post #2
- Forum: General Discussion
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Why do all my clocks run slow?
If you have an alarm clock that runs off wall current, it is almost certainly getting it pace from the power company. It will never run significantly fast - but if it becomes unplugged or you lose power now and then, it could appear slow. Quartz oscillators are generally designed to be...- .Scott
- Post #2
- Forum: General Engineering