Recent content by Bandersnatch
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High School Contradictions in the Distribution of Gamma-Ray Bursts
The voids, like all large scale structure, are subject to expansion as they evolve, especially rapid early on. Numerical simulations were run (eg. Illustris, Millenium) and the formation of structure under the LCDM tracks what is observed. One can only view the steady state as a contender for...- Bandersnatch
- Post #19
- Forum: Astronomy and Astrophysics
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High School Expansion and raisin bread
The raisin bread, like all analogies, suffers many ills. But this ain't one of those. In an expanding universe structures bound by gravity - like galaxies - don't expand. So the raisins staying the same as the bread raises in the oven is actually ok. You've referenced an empty thread template, btw.- Bandersnatch
- Post #2
- Forum: Cosmology
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How would a Machine at the Heart of the World tidally lock the Earth?
Just reinforcing post #2 here. If the Moon is out of the picture, by the virtue of it being held in place by magic, then there are no non-negligible forces in play. The Moon-less, tidally locked to the Sun state is the equilibrium the system is currently evolving towards. The only reason it...- Bandersnatch
- Post #4
- Forum: Science Fiction and Fantasy Media
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High School Is it a meteor or a meteorite when it makes moonfall?
Down with the entrenched atmosphericist terminology. There's no weather on the Moon, innit? It should be an ameteorite.- Bandersnatch
- Post #4
- Forum: Astronomy and Astrophysics
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Why do we spend so little time learning grammar in college?
*cough* It's gramm ar. *runs away*- Bandersnatch
- Post #66
- Forum: Art, Music, History, and Linguistics
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High School Red shifted tired light doubts
Wright's tutorial pages list issues with tired light. https://www.astro.ucla.edu/~wright/tiredlit.htm It's good to keep those in mind as one talks to, uh, a proponent.- Bandersnatch
- Post #6
- Forum: Cosmology
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High School Why would an atmosphere without greenhouse gasses be colder than with them?
The OP thinks that only GHGs can radiate heat. - is the issue here.- Bandersnatch
- Post #6
- Forum: Thermodynamics
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Writing: Input Wanted How would an Earth-like Planet fair with a Uranus like moon system?
For this you can use the small angle approximation, which makes it a simple proportionality - if you start with the size, distance and apparent size of the Moon, then anything e.g. twice the distance looks half as small while anything twice the size looks twice as large. In terms of angular...- Bandersnatch
- Post #3
- Forum: Sci-Fi Writing and World Building
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Undergrad Are There Two Suns? Exploring the Phenomenon of Sun Dogs
Looks like 'sun dogs' with the '22° halo'. Maybe the '46° halo' or the 'supralateral arc' as well, seeing how there is a secondary ring. They're all, in general, the effect of sunlight being reflected off of ice crystals in the atmosphere. Wikipedia has articles on those terms, with pictures and...- Bandersnatch
- Post #2
- Forum: Astronomy and Astrophysics
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RIP Jane Goodall (91), primatologist and conservationist
This ape lived long and had fun talking to other apes. It was a good ape, worth aping.- Bandersnatch
- Post #8
- Forum: Biology and Medical
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Does anybody know about Spacecraft Online Simulator?
Thanks. I'm not familiar with it, so won't be able to help you. Unless you're looking for more general pointers, in which case you'd have to describe in more detail the issues you had. I assume you've read the manual, and looked at the wiki and tutorials provided on the website?- Bandersnatch
- Post #4
- Forum: Computing and Technology
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Red Dwarf Star Systems -- Could they support life?
The argument here is that without rotation there could be sufficient difference in temperature between the two sides to either boil off water on the illuminated side, or freeze it on the far side. The issue with freezing here is that provided it's cold enough to freeze any water - all water will...- Bandersnatch
- Post #8
- Forum: Sci-Fi Writing and World Building
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Red Dwarf Star Systems -- Could they support life?
Late to the party, but I can offer some intuitions. Re.: a&d, these are not questions about physics, but alien biology and technological capabilities. The space of possibilities here is so large that it's impossible at this time to decide what is and isn't possible. Re.: b&c, these are...- Bandersnatch
- Post #7
- Forum: Sci-Fi Writing and World Building
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Does anybody know about Spacecraft Online Simulator?
Can you point to the software you're talking about?- Bandersnatch
- Post #2
- Forum: Computing and Technology
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Why is the plural for moose not meese?
Old Germanic (s,p) - regular plurals Goose = /go:s, go:si/ Mouse = /mu:s, mu:siz/ Moose = was ist das?* Old/Middle English - i-mutation occurs, causing the root vowel of the plural to be pronounced closer to the vowel of the ending; then loss of the redundant ending (as you now can distinguish...- Bandersnatch
- Post #9
- Forum: Art, Music, History, and Linguistics