In HBO's Chernobyl, radiation sickness is depicted as highly contagious, able to be transmitted by brief skin-to-skin contact with a contaminated person. Is this actually how radiation works?

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• In HBO's Chernobyl, radiation sickness is depicted as highly contagious, able to be transmitted by brief skin-to-skin contact with a contaminated person. Is this actually how radiation works?
• Is Under Armours new rush technology legit or a snake oil?
• Why is it possible to be able to compress gas into a smaller volume, but not be able to do the same with liquid?
• Can electricity arc in a vacuum?
• How do modern AC/DC power convertors handle different input voltages ?
• Are there scientific results on (expected) changes in average life expectancy due to anthropogenic climate change?
• The weather forecaster just said that summer officially starts at 11:54 am. What determines when a season starts and why isn’t it the start of the calendar day?
• Difference between triple bonds?
• Whatever happened to Sophophora melanogaster?
• Is there a statistical difference between adding several dice rolls together (3d6) vs. choosing a random number from within the range of possible rolls (3-18)?
• Bees help pollinate flowers, are there any examples of mammals doing this?
• Why are battery’s measured in Amps and volts instead of Jules?
• Under currently available or feasible propulsion systems, what is the likely maximum speed for human space travel and how long would it take to travel one light year at that speed?
• How exactly does eco mode in my car save me petrol?
• How would temperature affect the absorbance rate of the Superabsorbent polymer, sodium polyacrylate?
• With news of the Beluga/Narwal hybrid. At what point can you still interbreed? Is it in the realm of possibility that a person could impregnate/be impregnated by our closest genetics relative the chimpanzee?
• How comes it about that methyl isothiocyanate is not particularly poisonous?
• If gravitation is just a distorsion of space, why does it make objects moving? And then, where does their (objects) kinetic energy comes from?
• If water can only boil (212 degrees) why do simmering liquids boil around the edges?
• how does a submarine maintain interior atmosphere with changing pressure?
• Why doesn't division by zero have its dedicated imaginary number like "sqrt(-1) = i" does?
• How do new species get recognized as such?
• Since Earth's surface is electrically charged, does the earth emit electromagnetic radiation when it spins?

In HBO's Chernobyl, radiation sickness is depicted as highly contagious, able to be transmitted by brief skin-to-skin contact with a contaminated person. Is this actually how radiation works? Posted: 20 Jun 2019 10:54 PM PDT To provide some examples for people who haven't seen the show (spoilers ahead, be warned): There is a scene in which a character touches someone who has been affected by nuclear radiation with their hand. When they pull their hand away, their palm and fingers have already begun to turn red with radiation sickness. There is a pregnant character who becomes sick after a few scenes in which she hugs and touches her hospitalized husband who is dying of radiation sickness. A nurse discovers her and freaks out and kicks her out of the hospital for her own safety. It is later implied that she would have died from this contact if not for the fetus "absorbing" the radiation and dying immediately after birth. Is actual radiation contamination that contagious? This article seems to indicate that it's nearly impossible to deliver radiation via skin-to-skin contact, and that as long as a sick person washes their skin and clothes, they're safe to be around, even if they've inhaled or ingested radioactive material that is still in their bodies. Is Chernobyl's portrayal of person-to-person radiation contamination that sensationalized? For as much as people talk about the show's historical accuracy, it's weird to think that the writers would have dropped the ball when it comes to understanding how radiation exposure works. submitted by /u/TheWetRat [link] [comments]

Is Under Armours new rush technology legit or a snake oil? Posted: 21 Jun 2019 01:29 AM PDT Under Armour is claiming that they infused fabric with minerals and that "Your body emits energy, Mineral infused fabric absorbs energy, Energy is reflected back into your tissue and you gain strength and endurance" This claim seems like major BS. They said it uses Infrared Technology and that it is scientifically tested and athlete proven. I cant find any claims to back it up at all. submitted by /u/NeogeneRiot [link] [comments]

Why is it possible to be able to compress gas into a smaller volume, but not be able to do the same with liquid? Posted: 21 Jun 2019 01:49 AM PDT submitted by /u/Boxsteam1279 [link] [comments]

Can electricity arc in a vacuum? Posted: 20 Jun 2019 02:45 PM PDT Edit: a perfect vacuum submitted by /u/tsvisimcha [link] [comments]

How do modern AC/DC power convertors handle different input voltages ? Posted: 21 Jun 2019 01:00 AM PDT From my understanding of how transformers work, the ratio of the number of spires allows to change the voltages while in AC, and then diodes and filters make the current continuous. But I really don't see how they manage to adapt to such varying input voltages, from 110V to 220, they dont change the number of spires on the fly I guess, so how do they work ? Thank you very much ! submitted by /u/EizanPrime [link] [comments]

Are there scientific results on (expected) changes in average life expectancy due to anthropogenic climate change? Posted: 21 Jun 2019 05:18 AM PDT I found this popular science article: https://www.scientificamerican.com/article/study-calculates-years-life-lost-extreme-temperatures/, but I was wondering if one would be able to cast projections on the average life expectancy over Western countries in for example the RCP8.5 scenario. submitted by /u/pmmeclimateworries [link] [comments]

The weather forecaster just said that summer officially starts at 11:54 am. What determines when a season starts and why isn’t it the start of the calendar day? Posted: 21 Jun 2019 04:05 AM PDT Furthermore who makes that determination? submitted by /u/filbertsnuts [link] [comments]

Difference between triple bonds? Posted: 20 Jun 2019 08:14 PM PDT Acetylene is utilized in welding processes because of the relatively high amount of energy released from the carbon triple bond. Nitrogen (N2) is utilized in fire suppression and "purging" because of its inert nature. The N2 molecule is stable because of the triple bond between the nitrogen atoms. Why is the triple bond in one molecule desirable for combustion and the triple bond in another molecule desirable for prevention of combustion? submitted by /u/bcolli21 [link] [comments]

Whatever happened to Sophophora melanogaster? Posted: 20 Jun 2019 10:40 PM PDT Back in 2010, I remember a bunch of discussion and a bit of drama about how Drosophilia melanogaster was getting moved to the genus Sophophora. I'm not a fly person, but I was in grad school at the time and there were some interesting discussions about what would happen and people arguing over whether the new name should replace the old. My general impression is that the new name really never caught on in the literature. I guess I'm just looking for some inside information about what happened. Did the folks advocating for the change ever give up? Is it used in some places and not others? Did people find another solution? Did the ICZN ever rule on it differently? I guess I just want to know about what people working with flies thought about what happened. submitted by /u/atomfullerene [link] [comments]

Is there a statistical difference between adding several dice rolls together (3d6) vs. choosing a random number from within the range of possible rolls (3-18)? Posted: 20 Jun 2019 05:54 PM PDT I'm putting together a little program that generates stat blocks for Dungeons and Dragons characters. Stats in D&D are generally determined by rolling 4 six-sided dice, eliminating the lowest roll, and adding them together. To keep things simple, I've just been using 3d6 and adding them up. I realized that I would have to write less code if I just did one random roll in a range of 3-18 (the possible range of numbers generated by 3d6). Is there a statistical difference between rolling 1-6 three times and rolling 3-18? If so, how significant is the difference, and why is it different? submitted by /u/SeverelyLimited [link] [comments]

Bees help pollinate flowers, are there any examples of mammals doing this? Posted: 21 Jun 2019 02:59 AM PDT submitted by /u/lifeandtimes89 [link] [comments]

Why are battery’s measured in Amps and volts instead of Jules? Posted: 21 Jun 2019 04:52 AM PDT So different battery's are measured in different ways, disposable ones are usually referred to in terms of volts, ie a 9-volt battery. And you will see things like phone and portable chargers in terms of mAh. Why is this? How is this a full representation of the electrical capacity of the battery vs something like Jules or watt hours? submitted by /u/ThatWolf13 [link] [comments]

Under currently available or feasible propulsion systems, what is the likely maximum speed for human space travel and how long would it take to travel one light year at that speed? Posted: 21 Jun 2019 02:45 AM PDT submitted by /u/scotchegg72 [link] [comments]

How exactly does eco mode in my car save me petrol? Posted: 20 Jun 2019 06:57 PM PDT submitted by /u/barkatthemoon777 [link] [comments]

How would temperature affect the absorbance rate of the Superabsorbent polymer, sodium polyacrylate? Posted: 20 Jun 2019 10:33 PM PDT Hydrogen bonds are formed between sodium polyacrylate and water molecules, would increasing the temperature increase the kinetic energy of molecules leading to better bonding and absorption or would the higher temperature lead to a disruption of the hydrogen bonds leading to less efficient bonding? submitted by /u/Orio_n [link] [comments]

With news of the Beluga/Narwal hybrid. At what point can you still interbreed? Is it in the realm of possibility that a person could impregnate/be impregnated by our closest genetics relative the chimpanzee? Posted: 20 Jun 2019 06:46 PM PDT submitted by /u/Psychocrates [link] [comments]

How comes it about that methyl isothiocyanate is not particularly poisonous? Posted: 20 Jun 2019 10:28 PM PDT I was recently reading about the release of methyl isocyanate at Bhopal in 1985 ... and it brought to my mind the question of why there is this strange anomaly in biochemistry: methyl cyanate is poisonous; and methyl iso-cyanate is more poisonous than it; and methyl thio-cyanate is also more poisnous than it ... so one would naïvely expect methyl isothio-cyanate to be supremely poisonous, being at the 'far corner of the square', so to speak ... but it isn't!! ... it's actually a constituent of mustard-oil. It's not exactly a pleasant substance: it's present in mustard oil not but in a miniscule amount; & if one were to inhale the pure substance, one would possibly feel death - or at least some grave mischief to the person - verily to be nigh unto one! ... but poisonosity-wise it is not in the same league as the other three: even exceedingly miniscule traces of any of them in food would be an outrage & a scandal. submitted by /u/Ardhanarishwara [link] [comments]

If gravitation is just a distorsion of space, why does it make objects moving? And then, where does their (objects) kinetic energy comes from? Posted: 20 Jun 2019 08:12 AM PDT 1 - Why can't an object stays where it is just because space is distorded around (and in ?) it ? This nature of gravitation is often represented by a tight sheet with a mass in the middle, and marbles rolling down the slope. But they are rolling down the slope because of gravity. So, in the real gravity process, what makes objects "roll down the slope of the space sheet"? 2 - When I throw a ball upwards, it eventually comes to a full stop, thus having no kinetic energy left (right?). So, when it start moving downwards, where does its (new) kinetic energy comes from? submitted by /u/PoufPoal [link] [comments]

If water can only boil (212 degrees) why do simmering liquids boil around the edges? Posted: 20 Jun 2019 03:25 PM PDT Boilig is boiling, regardless of location right? Yet simmering pots of liquid seem to boil across the edges. Porque? submitted by /u/chancy5 [link] [comments]

how does a submarine maintain interior atmosphere with changing pressure? Posted: 20 Jun 2019 09:57 AM PDT im preplexed, how tf does that work. In terms of regulating temperature and pressure as the depth below sea level changes, how does it maintain inner enviornment submitted by /u/GitRektDotCom [link] [comments]

Why doesn't division by zero have its dedicated imaginary number like "sqrt(-1) = i" does? Posted: 20 Jun 2019 12:42 AM PDT Is there a technical reason why mathematicians do not define a unit number like z = 1/0 and base a 3rd dimension on this value, creating a 3D number structure with 1, i, and z? submitted by /u/utkusarioglu [link] [comments]

How do new species get recognized as such? Posted: 20 Jun 2019 09:34 AM PDT I saw the recent news about the assumed new species "ghjattuvolpe" or cat-foxes found in Corsica What steps do scientists have to take to get cat-foxes recognized as a new species ? submitted by /u/peanutbutterbuttplug [link] [comments]

Since Earth's surface is electrically charged, does the earth emit electromagnetic radiation when it spins? Posted: 20 Jun 2019 12:06 PM PDT Since spinning is a change in velocity submitted by /u/awantagy [link] [comments]

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What effect does Viagra have on a [biological] female?

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• What effect does Viagra have on a [biological] female?
• AskScience AMA Series: We are Prion Researchers! Ask Us Anything!
• Does asymptotic safety save everything?
• How does algae get introduced to new water sources?
• Why is the C14 method reliable while the amount created by it's main source isn't static and can't be calculated for objects older than ~10000 years?
• Does light have its own gravity?
• Sonic fire extinguisher. How does it work?
• Why is the radius where we are able to observe objects as they currently are 15 billion lightyears? Will this radius shrink, expand or remain constant?
• Why can computers perfectly reproduce a voice recording but can't synthesize a voice?
• How Do Waterproof Matches Work?
• why do the low notes on a piano carry for much much longer than the high notes?
• Do longitudinal and transverse waves in a metal spring influence each other?
• Is mixing household common vinegar and bleach really likely to create chlorine?
• How are old films able to be re-released in 4k?
• If an airplane acts as a Faraday Cage, why can we still use 4G and GPS reasonably well inside (at low altitudes)?
• Is quantum computing theoretically useful in other contexts than cryptography?
• Can you create a server farm in space?
• How do anthropologists and paleontologists clarify that a discovered bone is from a separate pre-modern species and not just an old bone from a relatively modern species that had a physical or genetic abnormality?
• 3D volumetric printing works by shining a light through a resin so a particular shape is hardened within it, why doesn't the liquid around the shape harden as well?
• Can fish/crustaceans breath in liquids other than water, such as ethanol?
• If I stare at a fixed point and move my head side to side, my eyes remain in a fixed forward position while my head turns. I don't feel myself moving my eyes side to side. Yet if I hold my head still and look left to right I can feel myself moving my eyes. So, what's happening in the first scenario?

What effect does Viagra have on a [biological] female? Posted: 20 Jun 2019 01:47 AM PDT Topic. Also disclaimer: Asked this once (not here) and only got angry people saying that some "females" can have penises so that's why I'm clarifying biological.... submitted by /u/OtakuJuanma [link] [comments]

AskScience AMA Series: We are Prion Researchers! Ask Us Anything! Posted: 19 Jun 2019 08:51 AM PDT Hello Reddit!! We are a group of prion researchers working at the Centre for Prions & Protein Folding Diseases (CPPFD) located on the University of Alberta Campus, in Edmonton, Alberta, Canada. Prion diseases are a group of rare, neurodegerative diseases that are invariably fatal and for which we currently have no cure. Having come from the most recent international prion conference (Prion2019) and with prions being highlighted in the news (CWD – aka "Zombie Deer Disease") we have decided to do an AMA to help clear some of the confusion/misinformation surrounding CWD, prions, and how they are transmitted. With us today we have 5 of the professors/principle investigators (PI's) here to answer questions. They are: Dr. David Westaway (PhD) – Director of the CPPFD, Full Professor (Dept. Medicine – Div. Neurology), and Canadian Tier 1 Research Chair in Neurodegerative Diseases. Dr. Judd Aiken (PhD) – Full Professor (Dept. Agriculture, Food and Nutritional Science), expert on CWD and environmental contamination of prions. Dr. Debbie McKenzie (PhD) – Associate Professor (Dept. Biological Sciences), expert in CWD strains and spread. Dr. Holger Wille (PhD) – Associate Professor (Dept. Biochemistry), expert in the study of the structure of native and misfolded prions. Dr. Valerie Sim (MD) – Associate Professor (Dept. Medicine – Div. Neurology), Clinical Neurologist, and Medical Director of the Canadian CJD Association, expert on human prion disease. /u/DNAhelicase is helping us arrange this AMA. He is the lab manager/senior research technician to Dr. Valerie Sim, and a long time Reddit user. We will be here to answer questions at 1pm MST (3pm EST) Proof: https://imgur.com/a/qPIES26 (left – Dr. McKenzie, right – Dr. Sim, middle – Dr. Westaway; not pictured – Dr's. Aiken and Wille) For more information about us and our research please visit our webpage: https://www.ualberta.ca/faculties/centresinstitutes/prion-centre submitted by /u/AskScienceModerator [link] [comments]

Does asymptotic safety save everything? Posted: 20 Jun 2019 07:01 AM PDT I recently overheard the factoid, that a standard quantization or GR might actually be free of divergencies after all. All this string theory business was invented, since a quantum theory of gravity is not renormalizable. As far as I understand, this could just be a consequence of perturbation theory and the full theory is completely fine. What's up with that? t. Not a theorist, but I know my QFT. submitted by /u/Paul_Meise [link] [comments]

How does algae get introduced to new water sources? Posted: 19 Jun 2019 10:36 PM PDT Can not find the answer online. I understand how they reproduce and what they need to survive. My question is how does water transition from being clean and lifeless too becoming a cesspool of life. An aquarium for example? submitted by /u/NomadGoat [link] [comments]

Why is the C14 method reliable while the amount created by it's main source isn't static and can't be calculated for objects older than ~10000 years? Posted: 20 Jun 2019 04:18 AM PDT The main source for c14 is depending on the power of the magnetic field of the sun which is connected to sun activity. Thats why C14 can be used to determine sun activity of thousands of years ago. This analysis has its limits of around 10000 years though. C14 is also used to determine age (even of things way older than our limits of calculating sun activity). So how is it possible to determine age in one case and sun activity in another? Age and sun activity don't correlate and both are determined by the amount of C14 left. How are we sure that something has a certain age if there is another parameter we dont know and perhaps cant even calculate because the object is too old? Do scientist just assume that sun activity was approximitly the same? Or do other methods exist i don't know about? submitted by /u/litchio [link] [comments]

Does light have its own gravity? Posted: 19 Jun 2019 08:57 PM PDT Light has no mass and is affected by gravity, I was just wondering if it had any gravity of its own? submitted by /u/An-Average-Banana [link] [comments]

Sonic fire extinguisher. How does it work? Posted: 20 Jun 2019 12:41 AM PDT I recently saw a video of two engineering students putting out fire using sound waves. I understand the basic concept, sound waves create pressure difference and that can be exploited by starving the fire of oxygen in the low pressure part of the wave. What I'm struggling with is the execution of this concept. Does this mean the fire has to be extinguished in the first rarefraction of the wave, because after that the fire will be made stronger by the added oxygen. My question is whether the fire has to be extinguished within the first rarefraction of the wave and if not how do they do it? submitted by /u/Ecstatic-_- [link] [comments]

Why is the radius where we are able to observe objects as they currently are 15 billion lightyears? Will this radius shrink, expand or remain constant? Posted: 20 Jun 2019 12:36 AM PDT I watched an educational video recently where this dude explained the reason why the observable universe is 92 billion light years wide, while the universe is only 13,7 billion years old. Later in the video he explained that there's a radius of 15 billion light years where the objects inside that radius will be visible to us as they currently are relative to them (when the light from those objects hits us), but the objects outside that radius will never be. This confused me, mainly because the number 15 billion seemed arbitrary, since it seemingly had no relation the the age of the universe or the size of the observable universe. Will this radius remain constant and will objects simply move outside it, or will it shrink/expand? Please explain? Link to video: https://youtu.be/vIJTwYOZrGU at the 7:28 mark he explains the thing about the 15 billion light year radius, however i reccomend watching the whole thing for context. submitted by /u/lars123mc [link] [comments]

Why can computers perfectly reproduce a voice recording but can't synthesize a voice? Posted: 19 Jun 2019 08:09 PM PDT Hello, I wanted to find out why can computers perfectly reproduce a human voice from a recording but can't synthesize a voice that sounds perfectly natural? submitted by /u/TheArchivist314 [link] [comments]

How Do Waterproof Matches Work? Posted: 19 Jun 2019 10:32 AM PDT I know that water extinguishes a flame due to water removing energy from the system, preventing the reaction to go over the activation energy. I don't get how the wax on fireproof matches work. You need fuel, oxygen and heat for combustion but I don't see the wax helping any of these 3 factors in water. submitted by /u/kraz3dAngel [link] [comments]

why do the low notes on a piano carry for much much longer than the high notes? Posted: 19 Jun 2019 04:57 PM PDT if you slam an A in the first octave and an A in the last octave, the former will continue to output sound for much longer than the latter. why is that? submitted by /u/newobrain [link] [comments]

Do longitudinal and transverse waves in a metal spring influence each other? Posted: 19 Jun 2019 01:59 PM PDT I learned that waves propagating through a medium pass through each other without influencing each other. (wave superposition) I saw an experiment in which two transverse waves, started from opposing ends of a long metal spring (slinky spiral) with opposing amplitudes passed through each other seemingly unaffected. However, when the experiment was modified by sending one longitudinal and one transverse wave through the spiral "something seemed to happen" when the two waves met. I got the impression that the propagation of the longitudinal wave was slowed down. Which would seem to violate the principle of wave superposition. ​ My questions: Is the principle of wave superposition true in all cases, even when longitudinal and transverse waves meet? If no, does the elongation of the spring (different tension) by one wave affect the wave velocity of the other wave? Or was my impression just a result of friction between floor and spring? Are there any other interesting cases of waves interacting with each other? ​ Thank you very much for any answers and input! submitted by /u/nsfwprons [link] [comments]

Is mixing household common vinegar and bleach really likely to create chlorine? Posted: 19 Jun 2019 03:07 PM PDT I'm getting mixed answers from the net about how accurate that claim is. It seems to me like some mildly researched article wrote that mixing vinegar and bleach made chlorine gas, and everyone then quoted that same article. I understand that lowering the pH of hypochlorite is going to create chlorine gas, but it seems to me that the chemical reaction described in the article is simplistic and doesn't take into account real-life factors, such as concentration, dilution, and other chemical present in both products. The internet is shock full of people saying chlorine gas definitely gets released, but without ever any underlying justification (save for an occasional vague "adding acid = chlorine gas"). It seems to me like the people who know what they're talking about are mostly saying it doesn't. Not being well versed enough in chemistry to have the possibility to make a non-ambiguous opinion by myself, I hope someone(s) here can help me. Some of the links that made me rethink this: A bunch of people in various parts of the internet saying it's ammonia and bleach that's dangerous, not vinegar and bleach This article which says it's good to mix them and never mentions gas release. It's published on EurekAlert!, which I don't know, but is sponsored by the AAAS, which is a non profit and seems trustworthy? This comment seems to corroborate it. These answers on Quora This answer on Quora and that one this answer to Someone I know swears their bleach and vinegar mix is great on /r/chemistry The answers to Vinegar then bleach in washing machine, also on /r/chemistry The Annual Report of the American Association of Poison Control Centers in 2013 (page 1225), 2014 (page 1089), and 2016 (page 1213) all just say "chlorine gas (when household acid is mixed with hypochlorite)", without mentioning which anywhere. This Medscape article says: "Household exposure occurs with chlorination tablet accidents during swimming pool maintenance, or with inappropriate mixing of bleach cleaning agents with ammonia products [...] [or] acidic cleaning agents (toilet bowl cleaners).", but does not mention vinegar anywhere. Thanks for any pointers! submitted by /u/Xananax [link] [comments]

How are old films able to be re-released in 4k? Posted: 19 Jun 2019 09:09 AM PDT All I know about the production of movies is recording it on a camera in a digital format. Does chemical "film" store images at an undefined resolution, which has its presentation limited only by the current projection or screen technology? Has the actual capture quality of the images themselves not improved at all over the years? Where is the limiting factor? submitted by /u/Zephandrypus [link] [comments]

If an airplane acts as a Faraday Cage, why can we still use 4G and GPS reasonably well inside (at low altitudes)? Posted: 19 Jun 2019 03:06 PM PDT submitted by /u/visvis [link] [comments]

Is quantum computing theoretically useful in other contexts than cryptography? Posted: 19 Jun 2019 09:01 AM PDT Current university physics and math student. After doing a presentation on Shor's algorithm I am wondering if there are other proposed benefits of quantum computing. I can't find any algorithms that give more than a polynomial speed up to classical algorithms. Are there any? Are quantum computers pretty much a waste of time once post quantum cryptographic standards become the norm? submitted by /u/DaKing410 [link] [comments]

Can you create a server farm in space? Posted: 19 Jun 2019 09:34 AM PDT Assuming current technology, can we create a server farm say the size of a small data center orbiting earth? Also assume weight is not a factor, what are the limiting factors preventing a space server farm? Is it cooling or something else? submitted by /u/mikesmith929 [link] [comments]

How do anthropologists and paleontologists clarify that a discovered bone is from a separate pre-modern species and not just an old bone from a relatively modern species that had a physical or genetic abnormality? Posted: 19 Jun 2019 06:00 AM PDT submitted by /u/i_owe_them13 [link] [comments]

3D volumetric printing works by shining a light through a resin so a particular shape is hardened within it, why doesn't the liquid around the shape harden as well? Posted: 19 Jun 2019 07:34 PM PDT Sorry about the odd phrasing of my question. Basically the light is shined through a resin, and the point where the light is most intense hardens. The first method is done by shining light from several different points at once, so the point in the resin where the light met would harden, and the areas around it would not because the light intensity was not strong enough. But the second method is done by rotating the liquid and shining light from a single point (a projector). Why doesn't the liquid around the shape harden as well? submitted by /u/VB1996 [link] [comments]

Can fish/crustaceans breath in liquids other than water, such as ethanol? Posted: 19 Jun 2019 05:42 AM PDT I saw a TIL about anaesthetising octopi by dunking them in ethanol- and I wondered if gills etc are able to extract oxygen dissolved in other liquids or only from water submitted by /u/nomnomnomnomRABIES [link] [comments]

If I stare at a fixed point and move my head side to side, my eyes remain in a fixed forward position while my head turns. I don't feel myself moving my eyes side to side. Yet if I hold my head still and look left to right I can feel myself moving my eyes. So, what's happening in the first scenario? Posted: 19 Jun 2019 09:03 AM PDT Are my eyes moving involuntarily in order to stay focused on a point? Are they just swiveling in my head within a fluid or something? submitted by /u/liamemsa [link] [comments]

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Are there any examples of venomous or toxic birds?

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• Are there any examples of venomous or toxic birds?
• Gravity attracts particles with mass, electromagnetism with electric charge and the strong force with color charge. What is the weak force's charge?
• Will an object rotating in a vacuum which has no contact with another external object, rotate infinitely or will it gradually lose its speed?
• We are Prion Researchers! Ask Us Anything!
• Why does the composition of crude oil vary between different oil wells?
• When I point my contactless IR thermometer straight up, what am I taking the temperature of?
• Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
• If a star "consumes" a planet, does that have any appreciable effect on the star's lifespan?
• How does the shift of the poles affect magnetic lines/ley lines? Is there an online map that shows the updated movement of these lines?
• Can LIGO miss gravitational waves at 45 degrees?
• At which altitude does the atmosphere become too thin to carry sound waves?
• Would abnormal levels of cadmium in soil cause inhalation exposure during dry windy seasons?
• How do we know what texture the skin of an extinct animal was? Like dinosaurs, how do we know that they didn't have like fur or something?
• Is it possible to produce lithium from scratch?
• How is rain measured in inches?
• Can a giant squid change its color like calamari?
• How are the calories of food items calculated?
• Do tsunami's occur at low amplitudes but high frequency along a similar distribution as earthquakes, forest-fires etc.?

Are there any examples of venomous or toxic birds? Posted: 18 Jun 2019 05:24 PM PDT I know that there are examples of venomous mammals, like the slow loris, or even egg laying mammals like the platypus (male). But are there any birds with a dangerous peck or scratch, maybe handling them can harm you, or perhaps they are bad to eat (and not from carrying parasites or diseases?) Just curious because I can think of examples from almost every major grouping of animals, but nothing for birds. submitted by /u/Frostitute_85 [link] [comments]

Gravity attracts particles with mass, electromagnetism with electric charge and the strong force with color charge. What is the weak force's charge? Posted: 19 Jun 2019 04:42 AM PDT submitted by /u/DaDerpyDude [link] [comments]

Will an object rotating in a vacuum which has no contact with another external object, rotate infinitely or will it gradually lose its speed? Posted: 19 Jun 2019 04:39 AM PDT Until yesterday, I thought if there is no friction force with a rotating object, it will never lose its spin, but I read somewhere that even under such conditions, the object will gradually slow down (but the reason was not specified). So, which force slows the rotation speed? Moreover, does the Earth lose its average (sidereal) rotation speed in time? submitted by /u/pp_hyp3r_n0vA [link] [comments]

We are Prion Researchers! Ask Us Anything! Posted: 19 Jun 2019 07:53 AM PDT submitted by /u/DNAhelicase [link] [comments]

Why does the composition of crude oil vary between different oil wells? Posted: 19 Jun 2019 04:09 AM PDT submitted by /u/Jay-Z_Blade [link] [comments]

When I point my contactless IR thermometer straight up, what am I taking the temperature of? Posted: 18 Jun 2019 08:41 PM PDT It's currently 85 degrees F on the ground here at 10 pm at night. That's the current nighttime air temperature. It's also the temperature I get when I point the IR thermometer at the grass on the ground. When I point my contactless IR thermometer straight up it registers 57 degrees F. That temperature increases as I point it more towards the horizon presumably towards denser and lower layers of air. So what am I measuring straight up? The cosmic background radiation temperature? An average of the stars and deep space in view? The average temperature of the atmosphere? A layer of IR-opaque water vapor in the troposphere? If the latter, how high up is it? How can I find out? Would the temperature it records be different in a dry desert area? submitted by /u/Nulovka [link] [comments]

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology Posted: 19 Jun 2019 08:13 AM PDT 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! submitted by /u/AutoModerator [link] [comments]

If a star "consumes" a planet, does that have any appreciable effect on the star's lifespan? Posted: 18 Jun 2019 04:04 PM PDT IANAS, so I'm fuzzy on the details of astrophysics, but I remember reading that once a star's core begins to create iron, it will go nova very shortly thereafter. So if our sun consumes Earth as it transitions into a red giant, our iron core (or those of the other inner planets) would fall into the sun as well. Might that have any impact on the sun's lifespan? submitted by /u/Conspark [link] [comments]

How does the shift of the poles affect magnetic lines/ley lines? Is there an online map that shows the updated movement of these lines? Posted: 19 Jun 2019 05:32 AM PDT submitted by /u/a9dzgal [link] [comments]

Can LIGO miss gravitational waves at 45 degrees? Posted: 18 Jun 2019 12:53 PM PDT So, LIGO and VIRGO have arms arranged at 90 degree angles. If I'm understanding this right, each arm measures deformation on it's axis. But what if both arms are deformed equally? Does that even make sense? And if it does, and if interferometers can miss such GWs, would adding a third arm solve that problem? I understand that the probability of that happening is so low, it wouldn't even be worth checking out, but it's a hypothetical question. Humour me. submitted by /u/Stalennin [link] [comments]

At which altitude does the atmosphere become too thin to carry sound waves? Posted: 18 Jun 2019 02:20 PM PDT Hypothetically speaking, if a speaker emitting a tone at about 80db were to rise from the ground all the way to space (well past the exosphere let's say), at what point would you no longer be able to hear the tone? Alternatively, at what altitude would the acoustic waves no longer be able to form due to the thinning out of the gas particle medium? I know the layers of Earth's atmosphere don't have sharp cutoffs, as it just gets more thin with altitude, effectively "fading out". I'm also aware that infrasound waves can travel at least up to the ionosphere, which generally ranges from 60-1,000km altitude. This is past the Kármán line which lies at ~100km altitude. However in this scenario I'm just considering an audible tone whose frequency is within the typical human hearing spectrum. I would assume that sound waves can still propagate (and be heard?) beyond the Kármán line, but am curious as to around what altitude things start to get weird and/or inaudible. If you'd like, you can imagine the tone to be J. S. Bach's Flute Sonata in B minor. submitted by /u/scuzzydata [link] [comments]

Would abnormal levels of cadmium in soil cause inhalation exposure during dry windy seasons? Posted: 18 Jun 2019 08:09 PM PDT Alternately, could it be taken up by grass so that, if there were a brush fire, it would be in the smoke? submitted by /u/X___0 [link] [comments]

How do we know what texture the skin of an extinct animal was? Like dinosaurs, how do we know that they didn't have like fur or something? Posted: 18 Jun 2019 12:37 PM PDT submitted by /u/JiberDaEEL [link] [comments]

Is it possible to produce lithium from scratch? Posted: 19 Jun 2019 02:06 AM PDT Now that we need a lot more lithium to produce lithium batteries, there is a problem to get lithium in an environmentally friendly way. So I was wondering if it would be possible to produce lithium from scratch in a lab? We produce diamonds in a lab so it is not unheard of to produce useful materials for industrial purposes. submitted by /u/Penetrator_Gator [link] [comments]

How is rain measured in inches? Posted: 18 Jun 2019 07:58 PM PDT Why not measured like a liquid (gallons, pints, etc.)? submitted by /u/someone5793 [link] [comments]

Can a giant squid change its color like calamari? Posted: 18 Jun 2019 02:19 PM PDT A quick search on Google only resulted in some statements about squid and octopuses in general but nothing specific about this sea monster. It would be pretty scary to have a beast like this camouflaged on a ship's hull. submitted by /u/ILYARO1114 [link] [comments]

How are the calories of food items calculated? Posted: 18 Jun 2019 10:17 AM PDT submitted by /u/jaype87 [link] [comments]

Do tsunami's occur at low amplitudes but high frequency along a similar distribution as earthquakes, forest-fires etc.? Posted: 18 Jun 2019 12:17 PM PDT Before I cause any confusion, by 'high frequency' I am not talking about the frequency of an individual tsunami (not even sure that is a thing), but the frequency of tsunamis of a particular amplitude over a period of time. Many cataclysmic events like earthquakes, land-slides and even forest-fires follow a law where the lower the amplitude of the event, the greater the frequency of events of that amplitude. So small earthquakes are happening all the time but they don't cause a cascading effect which makes them relatively unlikely to be detected by anyone who isn't looking for them. Mid sized and large earthquakes happen exponentially less frequently - with the frequency falling off as the magnitude increases. So my question is do tsunamis also follow that kind of law? If you spend enough time on the beach, are you likely to eventually experience a 'mini-tsunami' which might just feel like a particularly large wave relative to the regular cycle of waves caused by wind etc.? submitted by /u/graciousgroob [link] [comments]

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