Activity for Mithrandir24601
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Do we want to consider removing (most) mass-imported questions This is based on a question in Writing about revitalising the community and is pretty much a blatant copy-paste of Monica's answer there. Essentially, it's been suggested that we remove all mass-imported content, so we want to look at the feasibility of doing so here and to see if that's what peop... (more) |
— | over 3 years ago |
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Difference between 'AWPP' and standard quantum physics Quantum Computers are considered a more powerful type of computer than so called 'classical' computers. While a typical classical computer could be considered as a black box that can solve Polynomial time (P) problems in polynomial time (i.e. 'efficiently'), a typical (universal, fault tolerant) quan... (more) |
— | over 3 years ago |
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Requirements of posts in Rigorous Science To replace using the like of the 'hard-science' tag on Worldbuilding SE, we have the 'Rigorous Science' category. As evident in the name, this involves 'research' of some form, but what does this mean? That is, what are the requirements for a question in that category and what are the requirements... (more) |
— | almost 4 years ago |
| Answer | — |
A: How efficient can my neutrino detector be? Both the (current) answers to the question state that it is not possible for your idea to work. Aside from the fact that you are explicitly not asking for a feasibility study, the obligatory XKCD reference shows that it's all about the solid angle of the detector from the supernova and so, such a det... (more) |
— | over 6 years ago |
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A: how to scientifically explain this fictional type of matter? I'm going to run through your list of points and see what happens: Fine. Has to interact via either gravity, strong or weak Fine. $0$ charge (no electromagnetic interaction), integer spin (are bosons). Think Higgs Boson, photons, gravitons etc. ('force-carriers'). "Neo Matter particles have the hal... (more) |
— | over 7 years ago |
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A: What plausible things might happen in a *mildly* negative-entropic environment? The second law of thermodynamics states that global entropy of an isolated system always increases or remains constant This tells us a couple of things that are relevant here: If the system is not interacting with anything, entropy cannot decrease. I.e. the entropy of the universe will never decre... (more) |
— | over 7 years ago |
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A: Humans Achieve Massive Increase In Average IQs -- But How? By definition, the average IQ score is 100. However, the above-mentioned Flynn effect states that average IQs relative to previous years' standards increases. Going by this paper, the increase in averaage IQ is about $2.9 \pm 0.3$ per decade (in the Stanford-Binet and Wechsler IQ tests) and also sug... (more) |
— | over 7 years ago |
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A: What would define the "speed" (and direction?) of an alcubierre like warp drive? Preamble Lets start from the beginning here. The Alcubierre drive is a result of general relativity. This has what's known as a metric. Minkowski spacetime (lets call this 'flat') has the metric $dS^2 = -dt^2 + dx^2 + dy^2 + dz^2$ (where the speed of light has been taken to be $1$). This leads to s... (more) |
— | over 7 years ago |
| Answer | — |
A: How to generate energy from recoil? Using Michael Karnerfors' answer as a basis for the numbers, only instead of directly attaching the rail-gun to the ship so that everything moves as a whole, attaching the gun to a flywheel (or something similar), which is then connected to the ship so that only the gun moves (and the flywheel rotate... (more) |
— | over 7 years ago |