Why is the Ozone Layer Hole in the South Pole? Why isn't it in the North Pole? |
- Why is the Ozone Layer Hole in the South Pole? Why isn't it in the North Pole?
- How does dark matter effects black holes?
- What problems do different programming paradigms try to address? Why were newer paradigms thought of?
- How do investigators determine the source of a hack (such as a state actor)?
- During the Neolithic Subpluvial era, how did South American rain forests get their minerals?
- What is limiting the speed in which quantum computers can run? For instance, besides security issues, why can’t quantum computers guess a password by trial and error? Is the bottle neck just our interpretation of the information?
- Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
- Why do plastic bottles contract with heat?
- Do trees capture more carbon during their growth stage or at full growth? How do trees store carbon when they are no longer adding woody material?
- How does my immune system know not to kill my gut flora? Could diseases exploit this?
- How is it that batteries can provide constant voltage until they’re dead, but a capacitor slowly drops in voltage output until it’s dead? Why don’t batteries do the same thing?
- What is the proper name for a period T, when two wavelengths of different periods simultaneously intercept the x-axis after every T units of time?
- Why is brain death final? Like, why can't we restart or reboot a brain that's been dead for only a few hours?
- How do silkworms produce silk?
- Is there an electron hammer?
- How much does body fat influence our perception of temperature?
- Why is Uranus's odd axial tilt more than 90°?
- In descriptions of Hawking radiation, why is t always the matter particle out of the matter/antimatter virtual particles that escapes?
- How could an ultra massive black hole form?
- What advantages did Archosaurs have that allowed them to diversify in the Triassic and eventually dominate?
| Why is the Ozone Layer Hole in the South Pole? Why isn't it in the North Pole? Posted: 05 Dec 2018 02:04 AM PST Every time i see articles or news about the Ozone Layer Hole (for which the media is kind of silent recently), I always see photos/graph of the hole in the South Pole, but I've never heard about it in the north pole. Is there something to do with the Antarctic land mass? [link] [comments]  |
| How does dark matter effects black holes? Posted: 05 Dec 2018 05:53 AM PST If scientists have concluded that dark matter interacts through gravity with it's surrounding then shouldn't black holes be affected by it? Shouldn't black holes be getting "more stuff in them" than what is being calculated using visible matter? Or is dark matter taken under consideration in those calculations? [link] [comments]  |
| Posted: 05 Dec 2018 12:56 AM PST Having read through http://cs.lmu.edu/~ray/notes/paradigms/ and some Wikipedia pages to try and understand what programming paradigms are and examples of them, I've been left wondering why many different ones exist. [link] [comments]  |
| How do investigators determine the source of a hack (such as a state actor)? Posted: 05 Dec 2018 07:46 AM PST It seems like any hacker worth their salt knows how to protect their identity online, and when carrying out these attacks surely they use TOR or other methods to keep their IP secret. How then do investigators determine the likely source of an attack? [link] [comments]  |
| During the Neolithic Subpluvial era, how did South American rain forests get their minerals? Posted: 05 Dec 2018 07:01 AM PST https://earthsky.org/earth/saharan-dust-feeds-amazon-rainforest-perfectly I'm a bit confused here. How would that have occurred during a wet Sahara? [link] [comments]  |
| Posted: 04 Dec 2018 05:07 PM PST Sorry if the example was bad I didn't really have a good one in my head. [link] [comments]  |
| Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 05 Dec 2018 07:12 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Economics, Political Science, Linguistics, Anthropology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments]  |
| Why do plastic bottles contract with heat? Posted: 05 Dec 2018 07:05 AM PST Just threw a plastic bottle into a fire (sorry) and watched it contract and curl about the middle of the bottle. It looked like the middle was pulling both ends of the bottle towards it so i'm fairly certain it wasn't just melting. [link] [comments]  |
| Posted: 05 Dec 2018 07:00 AM PST Do trees capture more carbon during their growth stage or at full growth? How do trees store carbon when they are no longer adding woody material? I imagine part of it is through leaf growth, but how else? If in the soil, how does that work? [link] [comments]  |
| How does my immune system know not to kill my gut flora? Could diseases exploit this? Posted: 04 Dec 2018 01:04 PM PST I would imagine that an enormous repository of bacteria in the intestine would look a lot like a bacterial infection to an immune system. Also, given that my immune system doesn't kill my gut flora (by whatever mechanism that is), could harmful bacteria exploit this mechanism to prevent me from fighting off an infection? [link] [comments]  |
| Posted: 04 Dec 2018 10:09 AM PST |
| Posted: 05 Dec 2018 01:19 AM PST Suppose you are observing your car indicator beeping at a certain periodical frequency (every x seconds) and the car in front of you also has an indicator beeping (every y seconds). After every x•y seconds, the beeps appear to synchronize at least once. I tried to visualize it as wave functions, but what is the proper term for me to lookup the solution online? Thanks a bunch [link] [comments]  |
| Posted: 04 Dec 2018 12:16 PM PST I can understand why catastrophic brain damage would be hard to come back from, but let's take a case where the brain just goes without oxygen for a few hours without any other physical trauma. Why can't we bring it back by giving it oxygenated blood again? Is it decay or something else? [link] [comments]  |
| How do silkworms produce silk? Posted: 04 Dec 2018 11:18 AM PST |
| Posted: 04 Dec 2018 09:46 AM PST I'm pretty well familiar with the idea of a water hammer when a valve is shut off quickly along a piping system. Is there a similar phenomenon in electricity? I was vacuuming and felt uncomfortable accidentally unplugging the vacuum while it was on then replugging (the brave little toaster scarred me with vacuum damage). I thought more about it and decided maybe it wasn't terrible due to AC current but then I wondered heavily about even that sudden cycling. Is an "electron hammer" a thing? Is the force negligible due to the low mass of electrons? Could it theoretically cause damage in the worst of circumstances (high amp DC)? Thank you so much in advance! Ninja edit: son of a gun aren't most electric motors DC? So yeah back to my original fear of damaging the vacuum with on/offing. [link] [comments]  |
| How much does body fat influence our perception of temperature? Posted: 04 Dec 2018 10:02 AM PST Let's say you have a 5'5" 100 lb person, a 5'5" 150 lb person, and a 5'5" 200 lb person. Assume all other factors have been controlled eg they're all clones of the same person who are acclimated to the same climate etc etc. You put them all outside in 100F, or 0F, or -40F, in the same clothing. Do they all feel equally as warm, or does the insulating effect of fat cause some of them to feel perceptibly more or less comfortable? And is this something we've been able to measure I.e. if you weigh 200lbs you'll feel x degrees warmer than someone who weighs 100lbs? [link] [comments]  |
| Why is Uranus's odd axial tilt more than 90°? Posted: 04 Dec 2018 08:05 AM PST So Uranus has an axial tilt of 97.77° "as defined by prograde rotation", or the rotation of most of the other planets in the solar system. My question is how come it's not 82.23° and rotating in the opposite direction instead of assuming the entire planet has flipped over? Also the same would go for Venus with its axial tilt of 177.4° instead of 2.6°; is it impossible for a planet to naturally rotate around its axis in the opposite direction of that of its home star? What are the mechanics involved in deciding which way the planets will spin during the birth of a solar system? [link] [comments]  |
| Posted: 04 Dec 2018 10:27 AM PST I see Hawking radiation described as matter/antimatter pairs of virtual particles coming into existence at the event horizon with the matter one escaping , therefore leaving the antimatter behind in the black whole to reduce its mass. Shouldn't the antimatter virtual particle also escape half the time balancing it out? [link] [comments]  |
| How could an ultra massive black hole form? Posted: 04 Dec 2018 07:33 AM PST I've read that solar or near solar mass black holes would form mostly from novae. And that larger black holes could be primordial, or mergers, or black holes that have eaten a significant amount of matter. These were the theoretical explanations for the first LIGO merger black holes. (Could be wrong on that one). My question is, since supermassive black holes seem to be "common" and ultra massive black holes like the one in TON618 exist, what explanation could there be for the huge variance in mass? It seems to me that the black hole in TON618 would have had to consume 4+ solar masses per year for the entire age of the universe to be that large. [link] [comments]  |
| Posted: 04 Dec 2018 09:54 AM PST After the Permian extinction, what allowed Archosauriformes to dominate (Phytosaurs, Crocodylomorphs, Dinosaurs, Pterosaurs, etc.) rather than Therapsids, other reptiles, or amphibians? Is there a reason other reptiles took over the seas and Archosaurs did not? Why were Archosaurs equipped to survive the Triassic/Jurassic Extinction and continue to dominate? [link] [comments]  |
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