In the show Lie to Me, the main character has an ability to read faces. Is there any backing to that idea?

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• In the show Lie to Me, the main character has an ability to read faces. Is there any backing to that idea?
• When a limb is lost, what happens to the brain cells that are assigned to control it?
• Why are there holes opposite the magnetron in a microwave oven?
• Why does the full moon cause high tides exactly like the new moon?
• How can statistics tell the current Corona reproduction number accurately (e. g. RKI in Germany) when they know neither the number of infected people now nor at any time in the past?
• How are 'recovered' cases measured?
• How do birds know where to build a nest?
• Does every Man have 50/50 X/Y sperm or does it vary?
• Hiw do plants completely underwater make their food?
• Does the human visual pathway process 2D pictures the same way we process objects in the real world?
• Trees experience crown shyness. Do plants experience the same phenomenon?
• Are the orthologs of an ortholog, also orthologs?
• What makes spent nuclear fuel no longer useful?
• How do we know that gravity propagates at the speed of light?
• Why are planes able to fly on their backs?
• Why is the metric unit for mass the only one with a prefix?
• When talking about ionizing radiation, what is the dangerous part: the frequency, the peak amplitude, or both? And why?
• How quickly is blood pumped through the human body? Does the speed the blood is traveling at vary from body part to body part?
• Why would an antibody test yield a high percentage of false positives?
• What's the cause behind the light in the Cherenkov Effect?
• How are drugs named? Why are the names so weird? (Remdesivir, sildenafil, chloroquine, etc.)

In the show Lie to Me, the main character has an ability to read faces. Is there any backing to that idea? Posted: 30 Apr 2020 10:18 PM PDT submitted by /u/GrayMatters0901 [link] [comments]

When a limb is lost, what happens to the brain cells that are assigned to control it? Posted: 01 May 2020 07:40 AM PDT submitted by /u/vpemgz [link] [comments]

Why are there holes opposite the magnetron in a microwave oven? Posted: 01 May 2020 06:47 AM PDT There are holes in the front of microwave ovens for viewing the contents, and some holes near the top for the light. Those make sense to me. However, there also seem to be areas opposite the magnetron with holes punched out (examples). What is the purpose of these? Is it for some sort of sensor, or maybe a fan? submitted by /u/altayh [link] [comments]

Why does the full moon cause high tides exactly like the new moon? Posted: 01 May 2020 01:10 AM PDT Ok, so I understand why the NEW MOON causes high tides: The sun and the moon are aligned and on the same side from the earth, so both combined, they pull the water which is closer to them closer, then the earth a little and the water behind a lot less, so you have bulging water on both sides. But, during the FULL MOON, shouldn't the sun be acting oppositely to the moon, cancelling "the pull" out a little? Every textbook explains that "both the full moon and the new moon causes the highest tides because all three celestial objects are aligned", but never distinguish these two, so I assume both cause tides of the same level, but why? Also, there is two tides per day (two bulges & two depression), is their a difference in those two tides for the full moon and the new moon? or not? Couldn't find any answers online. submitted by /u/AYoungWholesomeBoy [link] [comments]

How can statistics tell the current Corona reproduction number accurately (e. g. RKI in Germany) when they know neither the number of infected people now nor at any time in the past? Posted: 01 May 2020 04:53 AM PDT There is no randomised, representative testing, so we don't even know nearly how many people are really infected (not to be confused with positive tests). The problems are untested infected people with no or few symptoms and, to a lesser degree, false negatives. All we have with some certainty are death numbers, be it by excess mortality or reported Covid-19 deaths, but they reflect infection numbers that happened weeks ago. E. g. in Germany there might be 1 million infected, might be 500,000, might be 2 million. Wouldn't frequent, randomized representative testing be an excellent use of testing capacities? Austria tested only 1000 people, if which 5 (?) were infected, which resulted in an extremely wide 95 % confidence window, but even that would be better than just guessing. submitted by /u/WithMeInDreams [link] [comments]

How are 'recovered' cases measured? Posted: 01 May 2020 08:18 AM PDT I was looking at the number of confirmed, deaths, and recovered cases and noticed 2 huge spikes in the number of recovered. On April 7th and April 24th there were around 20k recovered cases, which is about 5 times higher than other days. ​ Is 'recovered' estimated based on the number of new cases and deaths? Or are they reported to public health officials somehow? Or a combination of it? Would could be the reason for those spikes? ​ The dataset I looked at: https://nssac.bii.virginia.edu/covid-19/dashboard/ submitted by /u/an27725 [link] [comments]

How do birds know where to build a nest? Posted: 01 May 2020 08:11 AM PDT How do they determine a place where they can build a nest where it can't be kicked of by the wind, and is safe of predators. submitted by /u/SimpleSpare [link] [comments]

Does every Man have 50/50 X/Y sperm or does it vary? Posted: 30 Apr 2020 10:27 PM PDT Trying for first baby currently so was curious submitted by /u/KanyeMelon [link] [comments]

Hiw do plants completely underwater make their food? Posted: 01 May 2020 07:58 AM PDT Where there is total darkness, and the plants are unable to carry out photosynthesis, how do they make their food? submitted by /u/Th3_WiseWolf [link] [comments]

Does the human visual pathway process 2D pictures the same way we process objects in the real world? Posted: 30 Apr 2020 03:09 PM PDT submitted by /u/Volunteer-Pillager [link] [comments]

Trees experience crown shyness. Do plants experience the same phenomenon? Posted: 01 May 2020 07:02 AM PDT submitted by /u/undertrois [link] [comments]

Are the orthologs of an ortholog, also orthologs? Posted: 01 May 2020 06:57 AM PDT Homo sapien p53 is orthologous with a gene in zebrafish and mice but not daphnia. However, zebrafish and daphnia are orthologs. What is the relationship hetween homo sapien and daphnia? submitted by /u/samtothebam [link] [comments]

What makes spent nuclear fuel no longer useful? Posted: 30 Apr 2020 07:26 PM PDT What makes that spent fuel useless? What about U-235's decay products make them unworkable for generating power? submitted by /u/Schadenfrueda [link] [comments]

How do we know that gravity propagates at the speed of light? Posted: 01 May 2020 12:12 AM PDT submitted by /u/Fehojaf [link] [comments]

Why are planes able to fly on their backs? Posted: 01 May 2020 03:36 AM PDT Why are planes able to fly on their backs, as the upward trend generated by their wings should make them lose altitude, if you turn them around, very quick? submitted by /u/BubbleshooterOne [link] [comments]

Why is the metric unit for mass the only one with a prefix? Posted: 01 May 2020 01:00 AM PDT Litre, Meter, kiLoGrAm submitted by /u/Ganderful [link] [comments]

When talking about ionizing radiation, what is the dangerous part: the frequency, the peak amplitude, or both? And why? Posted: 01 May 2020 12:40 AM PDT I understand that higher frequency radiation is dangerous to us as we get into the UV range, but what is actually going on that causes damage? And what relationship does the wattage (amplitude) have to this? Is higher wattage radiation more harmful than lower wattage radiation at the same frequency? What is the wattage of UV light coming from the Sun and does that wattage contribute to it's harm? Apologies in advance if if you're cringing at my potential misuse of terms. I am just tryin' to learn. submitted by /u/BarnOfTheShire [link] [comments]

How quickly is blood pumped through the human body? Does the speed the blood is traveling at vary from body part to body part? Posted: 30 Apr 2020 04:13 PM PDT submitted by /u/Aut1smSpeaks [link] [comments]

Why would an antibody test yield a high percentage of false positives? Posted: 30 Apr 2020 09:31 AM PDT I've seen some articles about antibody tests that referenced that if you had reason to believe that the infection rate of a population was low that an antibody test that is generally accurate would yield a high amount of false positives anyways. Can someone explain why that would be if the test is (say 95%) accurate? submitted by /u/DeathFood [link] [comments]

What's the cause behind the light in the Cherenkov Effect? Posted: 30 Apr 2020 08:51 PM PDT I was having Chemistry class, and just entered a different state. I was thinking about Cherenkov Radiation. It is known that when electrons jump levels they emit energy, and thus light. We also know that the electron is going faster than the electromagnetic waves that inform of his position inside a mean, such as water, and thus, the electron isn't incorporated into the atom because it's not there anymore when it polarises the atoms. Is that return to the normal atom form that emits energy and thus light or is it something completely different? Please take note it's been a long time I saw anything abou Cherenkov Radiation, and couldn't find any texts that explained the cause of the light, only the phenomenon behind it, which is the electron faster than light inside said mean. submitted by /u/AaronFrye [link] [comments]

How are drugs named? Why are the names so weird? (Remdesivir, sildenafil, chloroquine, etc.) Posted: 30 Apr 2020 02:58 AM PDT In the past month or so, names like "chloroquine" and "remdesivir" have been floating around the news. Then, other names, like "hydroxychloroquine" pop up. So it seems that there's some chemical functional group stuck onto a chlroquine in that case, but how is the base name minted? I know it can't just be a trade name, because Viagra is apparently only the trade name for sildenafil. How is the name "sildenafil" determined? These names sound more like characters from a fantasy novel. Nothing I know about organic chemistry nomenclature suggests such names. Also, is there anything about the naming that takes into account the international nature of the pharma trade? I know a lot of pharma companies are not in English speaking countries but these names all sound anglo-centric in their component phonemes. Would a drug developed in Japan have a name like this? submitted by /u/Berkamin [link] [comments]

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How do the Japanese Snow Monkeys dry off without dying once they leave the hotsprings?

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• How do the Japanese Snow Monkeys dry off without dying once they leave the hotsprings?
• Do quasars exist right now (since looking far into deep space means looking back in time)?
• Are there viruses that you don't become immune to after recovering?
• What would happen to the edges of a massive hypothetical fan blade spinning in space as the edges approached the speed of light?
• Why does snow shoes enable a person to walk on deep snow?
• Are scientist using this time to conduct research that may have been impossible to conduct pre-pandemic?
• What sort of biology do you find under huge areas of concrete/ashphalt?
• How are drugs like remdesivir specific to viral RNA?
• Is it actually possible to create a fusion reaction without stellar gravity in the equation?
• How do browsers (like deer) affect carbon sequestration in soils relative to other ungulates or herbivores?
• Do viruses play an important role in balancing the ecosystem, or would things be better if we could eliminate them entirely?
• Do similar or the same thoughts produce similar or the same electrical signals that we can discern?
• How do paleontologists and fossil hunters find fossils in seemingly unassuming rocks?
• Is the brain sexually dimorphic?
• Why is cancer less common in for example the heart and eye compared to other parts of the body?
• What is it about nuclear reactions that allow for mass to be converted to energy?
• Do animals have to learn how to swim like humans or are they just born with that ability?

How do the Japanese Snow Monkeys dry off without dying once they leave the hotsprings? Posted: 29 Apr 2020 04:19 PM PDT How do the monkeys not get hypothermia being in the winter air soaked in water once they leave the hotsprings? It seems every nature show wants to show this human like behavior but not any of the other behaviors of the species. submitted by /u/subsistent_yak [link] [comments]

Do quasars exist right now (since looking far into deep space means looking back in time)? Posted: 30 Apr 2020 05:23 AM PDT Quasars came into existence within 1 billion years after the Big Bang. The heyday of quasars was a long time ago. The peak of quasars corresponds to redshifts of z = 2 to 3, which is approximately 11 billion years ago (or 2 to 3 billion years after the Big Bang). They were thousands of times more active than they are now. But what does 'now' mean, in terms of relativity? When we observe quasars 'now', we look back in time, and thus see how they were a very long time ago. So aren't all quasars in the universe already gone? submitted by /u/MarklarE [link] [comments]

Are there viruses that you don't become immune to after recovering? Posted: 29 Apr 2020 03:41 PM PDT How common are they? also i understand that you can become immune for a few weeks after recoviring from certain viruses. how common are those as well? do most viruses cause long-term immunity after recovering or short term? by long term i mean more than 6 months submitted by /u/BlackMelkor [link] [comments]

What would happen to the edges of a massive hypothetical fan blade spinning in space as the edges approached the speed of light? Posted: 29 Apr 2020 11:12 PM PDT I've been thinking of this question knowing that the speed of light is the fastest an object can travel. Hypothetically, if there was an absolutely massive "fan" in space, with blades that are astronomical units long, that was spun at a high rate of speed, what would happen to the edges as they approached the speed of light? Why can't they go faster? Even if the speed at the center of the fan is slow, the speed would increase exponentially as the distance from the center increases. Say the material is infinitely strong and would hold its shape at this speed. submitted by /u/Shesadirtyone [link] [comments]

Why does snow shoes enable a person to walk on deep snow? Posted: 30 Apr 2020 02:30 AM PDT [link] [comments]

Are scientist using this time to conduct research that may have been impossible to conduct pre-pandemic? Posted: 30 Apr 2020 08:12 AM PDT The lock down measures world wide, I have to imagine, provides a unique opportunity for scientists to collect data that they could not collect under normal circumstances. Am I correct in believing that? If so, what research is occurring now, not directly related to the pandemic itself, that may have been otherwise impossible to conduct before the pandemic? submitted by /u/Dustypigjut [link] [comments]

What sort of biology do you find under huge areas of concrete/ashphalt? Posted: 29 Apr 2020 09:03 PM PDT I hope I'm asking this right and it makes sense Especially super massive parking lots or the dry parts under cities. Lots of places under cities you get parts with higher biomass where there is water and artificial lights, rats and cockroaches and the like are famous for that, but what I mean are the desolate places. It also would also it depends on climate/where in the world I mean so I'll settle with places that don't freeze in the winter, but if there is similarity or something of note that would be interesting too. I guess in very cold places you might get unusual (for the area) life as the heated buildings might keep certain parts from freezing, just as cities in cold climates are always 5-10 degrees warmer than surrounding rural areas So those ginormous parking lots probably have huge areas without pipes or tunnels and so they would be like a desert and the only water source would be where there are cracks or potholes that allow water to get to the soil like an oasis, maybe at most you would get algae, fungi and maybe some microfauna? Are there any special microorganisms that thrive in these conditions? It would be a bit like a dark desert with oasis right? Does anything live of even thrive in the dry parts? Would they be considered as extremophiles? Thanks in advance :) submitted by /u/TesseractToo [link] [comments]

How are drugs like remdesivir specific to viral RNA? Posted: 29 Apr 2020 10:48 PM PDT I don't understand how a nucleotide analog like remdesivir can interfere with the function of viral RNA polymerases and not our own. submitted by /u/MrPankow [link] [comments]

Is it actually possible to create a fusion reaction without stellar gravity in the equation? Posted: 29 Apr 2020 03:00 PM PDT I've heard of possible solutions for Earth-based fusion reactions, but the common issue with nearly all of them seems to stem from the fact that the amount of energy required to even feasibly create and control plasma, on top of extracting and using its energy, often entirely defeats the purpose of the reactor in the first place; there's always a substantial net loss of energy in this transaction. So is this just a pipe dream that we'll never be able to solve? Are we better off harvesting energy from the sun directly and leaving it at that? submitted by /u/vexed_chexmix [link] [comments]

How do browsers (like deer) affect carbon sequestration in soils relative to other ungulates or herbivores? Posted: 30 Apr 2020 03:07 AM PDT submitted by /u/inquilinekea [link] [comments]

Do viruses play an important role in balancing the ecosystem, or would things be better if we could eliminate them entirely? Posted: 29 Apr 2020 07:10 PM PDT submitted by /u/RagingOrangutan [link] [comments]

Do similar or the same thoughts produce similar or the same electrical signals that we can discern? Posted: 29 Apr 2020 06:42 PM PDT I'm not going to be able to use the right words here since I'm just a dumb dumb business major but I'll do my best to get the questions across. If I think of the word "apple" while my brain activity is being recorded/monitored/imaged/whatever you call it... and then later think of the word "apple" again, will that brain activity look exactly the same? That's the main question, follow ups are... If the answer is yes, does that mean someone could look at the activity in real time or afterwards and be able to tell I am/was thinking about the word "apple" just based on the thing they're looking at? Again if yes, will that always be true across my life or does that change over time and/or perception of the word? What about if instead of the word, I think of what an apple looks like. Will that activity look related to me thinking of the word "apple"? If all or any of that is true.... If someone, somewhere else in the world, that I've never met also thinks about what an apple looks like, will the activity look similar? I could go on and on with questions on this curiosity but in the event the answer to the main question is "no" I'll stop here. Thanks a bunch for helping me to understand without knowing the words science people! submitted by /u/fearnot4urfound [link] [comments]

How do paleontologists and fossil hunters find fossils in seemingly unassuming rocks? Posted: 29 Apr 2020 01:03 PM PDT submitted by /u/cwf82 [link] [comments]

Is the brain sexually dimorphic? Posted: 29 Apr 2020 06:36 PM PDT I recently got into a discussion with a family member about wether or not the brain was sexually dimorphic or not, and they sent me links to three studies that claim to demonstrate that the brain isn't sexually dimorphic at all. Are the articles accurate in their claims? submitted by /u/RosarioRooster2 [link] [comments]

Why is cancer less common in for example the heart and eye compared to other parts of the body? Posted: 29 Apr 2020 11:50 AM PDT submitted by /u/Owanjila [link] [comments]

What is it about nuclear reactions that allow for mass to be converted to energy? Posted: 29 Apr 2020 12:57 PM PDT I was giving my family the basic explanation for fusion vs fission and how E=MC^2 means small mass --> big boom. But I never really stopped to think why does that conversion happen? Or more specifically: What are the conditions that allow mass to be converted to energy and vice versa? In chemistry we talk about reactions occurring if you can reduce the free energy of the system (- ΔG ). Is a similar process occurring here where it is more "efficient" to convert to pure energy rather than resist the extreme temperatures? submitted by /u/seeyaspacecowboy [link] [comments]

Do animals have to learn how to swim like humans or are they just born with that ability? Posted: 29 Apr 2020 06:36 AM PDT Swimming in humans is something that must be taught and it is not something that we are just instinctively able to do. Do animals like jaguars or tigers that swim and use the water for hunting but are not dependent on water have to teach their young how to swim? If these types of animals are not exposed to water or not taught by their parent, do they instinctively know what to do or would they drown? submitted by /u/Miladypartzz [link] [comments]

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What happens to the DNA in donated blood?

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• What happens to the DNA in donated blood?
• AskScience AMA Series: I am a research professor who teaches about produce food safety and conducts food safety training workshops for growers. AMA!
• How aiming works in new weapons?
• How much of the population typically has *flu* antibodies before flu transmission collapses?
• Why can you not generate DC current from a rotating generator without a commutator?
• How long does it take to produce a vaccine?
• How will quarantine affect our immune systems, not being exposed to day to day germs now?
• What is the life cycle of a cloud? Do they drop rain consistently until they're depleted?
• Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
• How did monkeys get to the New World?
• Why do we assume light takes the path of least time?
• How can Le Chatelier's principle be proved mathematically?
• Why is there supersonic wind on Neptune and how do we know about it?
• If the coronavirus (or any virus for that matter) is so contagious and can be found on surfaces or in the air for long periods of time, then why do you need to swab so deep in your nasal cavity?
• As the average global temperature increases, do we observe the earth's atmosphere increase in volume or pressure?
• Did The Plumages of Feathered Dinosaurs Change During Breeding Season Like Modern Birds' Do?
• Can a sum of powers of natural numbers be expressed as a sum of different powers of the same number?
• How close is a vaccine that works on Monkeys to that of one that works on Humans?
• Why is the night sky dark, instead of being lit up by stars, if there are so many of them around Earth?
• If I had a blood transfusion from someone with antibodies from a virus, do I also have the antibodies from then on out?
• Do objects that dock with the International Space Station affect the ISS's orbit?
• If someone is asymptomatic, can they still die from Covid-19?
• Are there meaningful differences in the properties of different elements in a plasma?

What happens to the DNA in donated blood? Posted: 29 Apr 2020 12:33 AM PDT Does the blood retain the DNA of the donator or does the DNA somehow switch to that of the receiver? Does it mix? If forensics or DNA testing were done, how would it show up? submitted by /u/colorblind-rainbow [link] [comments]

AskScience AMA Series: I am a research professor who teaches about produce food safety and conducts food safety training workshops for growers. AMA! Posted: 29 Apr 2020 04:00 AM PDT Hi Reddit! I'm Keith Schneider, a professor in the Food Science and Human Nutrition Department in the Institute for Food and Agricultural Sciences at the University of Florida. With concerns raised over the spread of COVID-19, consumers are worried about how to handling their grocery store purchases. Right now, UF / IFAS is working to educate consumers and growers alike on the facts that are tied to taking care of produce during a global pandemic. Proof! More about me: I received my PhD in Food Science and Human Nutrition, from the University of Florida, my Masters in Public Health from the University of South Florida and a Bachelors in Biology from the University of Florida. I have been working with Extension offices in Florida to help educate growers for over 20 years. Since 2005, I have reviewed various journals on produce safety, food science, microbiology, nutrition and quality. I'll be on at 1 pm ET (17 UT), AMA! Username: UFExplore submitted by /u/AskScienceModerator [link] [comments]

How aiming works in new weapons? Posted: 29 Apr 2020 12:46 AM PDT I don't know how to explain this well and I don't speak much English either. I'm going to try to ask as clearly as possible. Also, I think it goes in Maths, because it is related to geometry. Sorry if I am wrong. I see an ancient weapon, it has two points that line up, form a straight line and I put my eye on that line. The bullet will follow that line, at least in theory. Through two points it passes a single line and on that line I put my eye. I see a modern weapon. It has a red dot and through a dot infinite straight lines pass, so, if I move my eye, the straight line changes. But if I don't move the gun, the bullet's destination point doesn't change. How can you aim a holographic weapon then? I want to stress that I've never seen a gun in real life, I've only seen guns in video games. I have been googling it, but never explain this particular point. submitted by /u/CapitanM [link] [comments]

How much of the population typically has *flu* antibodies before flu transmission collapses? Posted: 29 Apr 2020 06:09 AM PDT I hear statistics like NYC may have approximately 30% of its population exhibiting CoV antibodies, but I'm having a hard time contextualizing it to understand the significance. I assume that 100% of a population doesn't need to have antibodies in order for a virus to effectively be unable to spread, based on probability and network dynamics. But I just don't know where that tipping point actually is. That's why I'm asking about the flu virus for context, which is somewhat like CoV and better studied. I'm also asking for the percentage of the population that exhibits antibodies and NOT the percentage that gets the flu, because immunity can be acquired from flu shots. So, I'm assuming the stats I find saying that 5-20% of the population that get the flu annually is likely well below the number I'm looking for. submitted by /u/RelevantApe [link] [comments]

Why can you not generate DC current from a rotating generator without a commutator? Posted: 29 Apr 2020 08:25 AM PDT My understanding of power generation as it stands is that the reason a rotating generator makes AC power is because the positive and negative side of the magnet pass over the coil of wire and this the current flows one way or the other depending on which is passing over the coil at that time. So if you wanted to generate DC power directly without a commutator, why can't you have static magnets with only their positive side towards the coil? Wouldn't that prevent the current from switching directions? My understanding of this is all relatively flimsy and I can't find any solid answers online so I would love for people to correct me on this. Thanks! submitted by /u/TheRedWarrior137 [link] [comments]

How long does it take to produce a vaccine? Posted: 29 Apr 2020 06:10 AM PDT This is a follow up to a previous question I asked. Instead of making an educated guess on which strain of flu to produce a vaccine for, why not wait for the first infections to come out, then test for the strain, and then produce the correct vaccine? submitted by /u/wolfenman [link] [comments]

How will quarantine affect our immune systems, not being exposed to day to day germs now? Posted: 29 Apr 2020 09:35 AM PDT Since we are in quarantine, for the most part we don't leave our houses now. And when we do, we are preventing contact with germs with face masks and washing our hands. Given this, I'd assume our immune systems are getting much less practice now. Does that mean they are getting weaker the longer we quarantine? submitted by /u/magginator8 [link] [comments]

What is the life cycle of a cloud? Do they drop rain consistently until they're depleted? Posted: 29 Apr 2020 02:34 AM PDT I live in a city several hundred kilometers west of another city, which usually gets almost identical weather 24 hours later, including rainfall. Is this a misconception on my behalf, or are there reasons two cities might share weather? submitted by /u/dspm99 [link] [comments]

Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 29 Apr 2020 08:10 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary Science 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! submitted by /u/AutoModerator [link] [comments]

How did monkeys get to the New World? Posted: 28 Apr 2020 01:28 PM PDT submitted by /u/causal_user [link] [comments]

Why do we assume light takes the path of least time? Posted: 28 Apr 2020 06:55 PM PDT I'm reading Feynman's lectures on quantum electrodynamics, and they're so far understandable (Feynman's knack for explanation is uncanny). One thing I fail to understand, however, is that the theory seems to rely on photons taking the path with the least amount of time required to get to the detector a majority of the time. Why do we assume this? And how can a photon know what path takes the least time? If we don't assume the presence of a detector, there's no "destination" to measure for, right? I don't know how much of this question is actually answerable lol, but anything is appreciated! submitted by /u/Astracide [link] [comments]

How can Le Chatelier's principle be proved mathematically? Posted: 28 Apr 2020 09:34 PM PDT You can prove it practically but I was wondering if there was any mathematical proof to why this principle applies. submitted by /u/Planetboi [link] [comments]

Why is there supersonic wind on Neptune and how do we know about it? Posted: 28 Apr 2020 10:23 PM PDT submitted by /u/Monet-Monet-Monet [link] [comments]

If the coronavirus (or any virus for that matter) is so contagious and can be found on surfaces or in the air for long periods of time, then why do you need to swab so deep in your nasal cavity? Posted: 28 Apr 2020 11:39 AM PDT I have not personally had a test for COVID-19 but I have seen the procedure. The swab seems to go much deeper than that of a standard flu test. If the virus can be found in most of our mucus membranes why do they need to swab so deep? submitted by /u/cieuxrouges [link] [comments]

As the average global temperature increases, do we observe the earth's atmosphere increase in volume or pressure? Posted: 28 Apr 2020 02:07 PM PDT Basically the title. The question comes from what I imagine might be an impact of climate change and warming global temperatures. submitted by /u/AnEntofOld [link] [comments]

Did The Plumages of Feathered Dinosaurs Change During Breeding Season Like Modern Birds' Do? Posted: 28 Apr 2020 09:25 PM PDT submitted by /u/dissonancerock [link] [comments]

Can a sum of powers of natural numbers be expressed as a sum of different powers of the same number? Posted: 29 Apr 2020 12:29 AM PDT For example, can 53 + 50 be expressed as 5a + 5b where a, b is not equal to 3 or 0? submitted by /u/Consultant_47 [link] [comments]

How close is a vaccine that works on Monkeys to that of one that works on Humans? Posted: 28 Apr 2020 01:34 PM PDT submitted by /u/SpongeKake [link] [comments]

Why is the night sky dark, instead of being lit up by stars, if there are so many of them around Earth? Posted: 28 Apr 2020 04:30 PM PDT Distant stars are little white dots in the sky, and, if there are more than billions of them in our galaxy alone, anywhere we look we should see a white dot. Then why isn't the sky much brighter? submitted by /u/cillindrical [link] [comments]

If I had a blood transfusion from someone with antibodies from a virus, do I also have the antibodies from then on out? Posted: 28 Apr 2020 06:49 PM PDT Could the blood of virus "survivors" be used to cure others? submitted by /u/Fivesidedcoin [link] [comments]

Do objects that dock with the International Space Station affect the ISS's orbit? Posted: 28 Apr 2020 01:28 PM PDT I had not thought about this until now, but I can't see how this isn't the case unless they have something to prevent this. Or the change in orbit is negligible. submitted by /u/manfacehorse [link] [comments]

If someone is asymptomatic, can they still die from Covid-19? Posted: 28 Apr 2020 09:18 PM PDT This may seem like a stupid question but I've googled it and only found that a lot of people are asymptomatic, but no reports about of any have died. submitted by /u/Elfedor [link] [comments]

Are there meaningful differences in the properties of different elements in a plasma? Posted: 28 Apr 2020 10:49 AM PDT For solid, liquid and gas states, differences between different atoms and molecules are very abundant. But that's the thing - all I know of chemistry is confined to these three states. With plasma you obviously don't get any big, complicated molecules because everything is really, really hot, but are there any interesting meaningful differences between the elements in a plasma? Heavier elements are heavier, obviously, but other than that, any meaningful differences? Or is hydrogen plasma mostly the same as helium plasma, and mercury plasma and tungsten plasma (Although good luck even making that on Earth, I guess)? submitted by /u/Rhamni [link] [comments]

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