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Yngwie Mangosteen posted:Huh, I asked when I was visiting Iceland and they said there was effectively limitless heat based on current technology, I guess I was wrong. Iceland is sitting directly on geothermal activity of a magnitude I don’t think anywhere else in the world really does
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Apr 17, 2024 16:46
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Yngwie Mangosteen posted:Huh, I asked when I was visiting Iceland and they said there was effectively limitless heat based on current technology, I guess I was wrong. In Iceland, the most volcanically active place on earth, that might be basically true
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Apr 17, 2024 16:47
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in conclusion, geothermal energy is a land of contrasts
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Apr 17, 2024 16:59
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Actually reference 50 in the wiki page I linked (I'm phone posting and can't copy the URL for some reason? help computer) is a pretty good read and says that even some of the Icelandic wells may be depleted in a timescale of 100-300 years. It also points to the complexity of the situation of whether it's running out of extractable water or usable heat - one lower temperature well is expected to run out of usable heat, not pressure, whereas another high-temp well is expected to run low on pressure (i.e. extractable water) and can maybe be saved by reinjection of water (or maybe a closed loop system), albeit at slightly reduced output because the temperature will also drop. Ref 20 is also a good summary of the issue. I'm learning a lot here myself
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Apr 17, 2024 17:17
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Are there any cheap entry level headsets for VR that are worth trying? The Gear VR looks like something I'd be willing to try, but it's been discontinued and unsupported for a few years now.
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Apr 17, 2024 20:15
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When the Sun explodes, will it take out the solar system?
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Apr 17, 2024 20:27
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Leave posted:When the Sun explodes, will it take out the solar system? don't worry about that, it'll probably be fine. just get back to work
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Apr 17, 2024 20:33
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Leave posted:When the Sun explodes, will it take out the solar system? Our best guess is that the sun will become a red giant in about five billion years. It'll swallow Mercury and Venus, and maybe reach Earth, but I don't see anything that suggests it'll reach the other planets.
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Apr 17, 2024 20:41
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Leave posted:When the Sun explodes, will it take out the solar system? Before it explodes it will already have eaten the inner rocky planets in its red giant phase. The gas giants may continue orbiting the white dwarf after it sheds its outer layers.
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Apr 17, 2024 20:42
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Question about Google Translate handling Chinese and Japanese: Google Translate often makes mistakes with pronouns when translating from Japanese to English, but doesn't make these mistakes with Chinese. For example, say there's a paragraph about a doctor and a patient interacting, and they're both men. The Google Translate Chinese-to-English translation would probably get the pronouns right: quote:The doctor put his left hand on the patient's shoulder and put the stethoscope in his right hand on his chest. "Take a deep breath," he told him. He took a deep breath. But the Japanese-to-English translation might look something like: quote:The doctor put his left hand on the patient's shoulder and put the stethoscope in her right hand on his chest. "Take a deep breath," I told her. I took a deep breath. Are the errors in the Japanese translation more likely caused by a problem with Google Translate itself, or is there something specific to the Japanese language and the way it handles pronouns that makes it difficult for Google Translate to determine which one to use?
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Apr 17, 2024 20:59
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Rabbit Hill posted:Are the errors in the Japanese translation more likely caused by a problem with Google Translate itself, or is there something specific to the Japanese language and the way it handles pronouns that makes it difficult for Google Translate to determine which one to use? Google translate kind of sucks for Japanese and DeepL is a lot better but it will still get confused and fill in the wrong subjects for verbs a fair amount in complicated sense that indicate all the people involved, and obviously it will just insert something random in sentences where they aren't specified at all. mystes fucked around with this message at 21:18 on Apr 17, 2024 |
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Apr 17, 2024 21:13
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ultrafilter posted:Our best guess is that the sun will become a red giant in about five billion years. It'll swallow Mercury and Venus, and maybe reach Earth, but I don't see anything that suggests it'll reach the other planets. I think Earth might be swallowed and Mars probably won't, the outer planets should probably just keep orbiting the sun indefinitely unless something else comes along to disrupt the solar system. I think the chances are small that that ever happens before everything gets too spread apart by the expansion of the universe to ever interact with each other again. e: actually I looked it up and the estimate is 30 trillion years for stars to interact with each other, so it could happen before interactivity in the universe ends but long after habitability of the universe expires Flournival Dixon fucked around with this message at 21:30 on Apr 17, 2024 |
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Apr 17, 2024 21:23
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I thought I remembered reading that some quirk of the process would cause the planets to orbit at a wider radius. Not in a way that would make them remotely habitable, mind you, but one that might cause the Earth to persist as an alternately frozen and burnt ball of rock, up until the sun goes nova anyway.
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Apr 17, 2024 21:29
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TooMuchAbstraction posted:I thought I remembered reading that some quirk of the process would cause the planets to orbit at a wider radius. Not in a way that would make them remotely habitable, mind you, but one that might cause the Earth to persist as an alternately frozen and burnt ball of rock, up until the sun goes nova anyway. Yeah they think the largest part of the red giant phase of the sun will definitely encompass earth's current orbit but they're not sure whether or not Earth would be far enough out to escape being swallowed or not. Our sun isn't big enough to go supernova, it'll just collapse into a white dwarf when the red giant phase ends, and just spend billions of years cooling down to become a black dwarf, which will just sit there for however long protons stay stable, possibly like 10^30 years or maybe 10^200 years. Flournival Dixon fucked around with this message at 21:35 on Apr 17, 2024 |
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Apr 17, 2024 21:32
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The Andromeda galaxy is heading this way and due to merge with the milky way in 4.5 billion years, so lots of exciting things could happen.
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Apr 17, 2024 21:49
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Leave posted:When the Sun explodes, will it take out the solar system? It won't explode. It's not massive enough to do that. It'll just balloon up as the others said and slowly eject its outer mass over time. If it were to explode I guess it might obliterate earth if it was spared during the red giant phase and strip some atmosphere from the outer gas giants, but I'm not an astrophysicist and am just going from what little I remember from the astrophysics electives I took like 15 years ago. Edit: refresh the page before replying dummy 
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Apr 17, 2024 21:50
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Flournival Dixon posted:Yeah they think the largest part of the red giant phase of the sun will definitely encompass earth's current orbit but they're not sure whether or not Earth would be far enough out to escape being swallowed or not. Our sun isn't big enough to go supernova, it'll just collapse into a white dwarf when the red giant phase ends, and just spend billions of years cooling down to become a black dwarf, which will just sit there for however long protons stay stable, possibly like 10^30 years or maybe 10^200 years. Oh, my mistake. For some reason I had it in my head that all suns went nova if they didn't go supernova. Flipperwaldt posted:The Andromeda galaxy is heading this way and due to merge with the milky way in 4.5 billion years, so lots of exciting things could happen. IIRC the estimated number of solar collisions involved in this merge is going to be, like, 10. Galaxies are not dense.
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Apr 17, 2024 21:52
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obi_ant posted:Are there any cheap entry level headsets for VR that are worth trying? The Gear VR looks like something I'd be willing to try, but it's been discontinued and unsupported for a few years now. I don't know what the current state of the art is, but they'll probably know over at the VR megathread: https://forums.somethingawful.com/showthread.php?threadid=3901021 It used to be that
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Apr 18, 2024 00:04
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Can metal companies figure out how other metal manufacturers mix their composite and the ratio of the mix of their metal using chemicals and microscopes? like can you chemically find out if someones sword is Nickel/Steel/Copper/bonding minerals and the ratio of the mix?
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Apr 18, 2024 11:36
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A mass spectrometer can tell you the ratios of elements in something. Someone experienced with metallurgy can then give you a very good guess as to the manufacturing process.
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Apr 18, 2024 12:29
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Does anyone else notice that people of a certain age, say 65+, when you're talking to them they kind of move their lips while you're the one talking? Like an unconscious mirroring. And it's not universal but maybe 15% of people that age seem to do it. Maybe it's not noticeable to most, idk. But the small / stupid question is, what is the etiology of this? Doesn't seem to happen to younger cohorts so it most be an age-related condition.
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Apr 18, 2024 15:23
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Are you just noticing orofacial dyskinesia because you're talking to them? Older people sometimes have a condition related to the control of their mouths, my grandpa had it before he died and it can sorta look like they're almost talking, or chewing.
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Apr 18, 2024 15:40
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Yngwie Mangosteen posted:Are you just noticing orofacial dyskinesia because you're talking to them? Older people sometimes have a condition related to the control of their mouths, my grandpa had it before he died and it can sorta look like they're almost talking, or chewing. I hear what you're saying but I've noticed that when I stop talking, they stop mirroring. I'll take a pause for a few seconds and they'll stop, then I'll resume what I was saying and they'll start the lip movement again. Might still be the same thing but it's a weird correlation.
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Apr 18, 2024 15:57
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Al-Saqr posted:Can metal companies figure out how other metal manufacturers mix their composite and the ratio of the mix of their metal using chemicals and microscopes? Chemistry is one of two inputs to material properties, the other being processing. So, you could use any old spectrometer to determine the chemical composition of the metal, but without knowing how it was melted, alloyed, cooled, heat treated, processed, and ultimately used, you can’t really know anything specific (that would be uniquely identifying) about the properties of the material. E: for example all steels will melt around the same temperature, but microstructure can vary widely even for two alloys with similar chemistries.
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Apr 18, 2024 16:18
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