Is the stomach basically a constant ‘vat of acid’ that the food we eat just plops into and starts breaking down or do the stomach walls simply secrete the acids rapidly when needed?

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• Is the stomach basically a constant ‘vat of acid’ that the food we eat just plops into and starts breaking down or do the stomach walls simply secrete the acids rapidly when needed?
• Potentially a stupid question but does inbreeding affect wild animals as negatively as it does humans?
• Because of the commonness of depression in humans, is it probable that it has some adaptive quality that has been selected for?
• When a person feels "run down", what systems or internal processes are creating that feeling?
• If Meditation raises GABA levels, does it mean that over time it would lead to downregulation of GABA receptors?
• Does eye colour affect colour perception?
• What exactly happens to meat that gets a rubbery texture after microwaving?
• Are the Pyramids of Giza actually perfect?
• Is there a physical limit to how small a flame can get?
• Could you, theoretically, make an alloy of osmium and uranium?
• Why do sponges only get soft when soaked with water, but not with oil or pure alcohol?
• What determines if a gene is recessive or dominant?
• How do subways run on a SINGLE line of wire? Every electrical outlet has two poles.
• What are the largest pathogens that the immune system can effectively fight?
• Is methane produced at the cathode during potassium briomide electrolysis?
• what magnets were used in 19th century electromagnetic experiments? (i.e. Faraday's motor)
• Weight of impact at terminal velocity?
• How does a clinical lab identify what bacteria you’re infected with?
• Is it possible to form an electrolyte in an organic solution without using water or a surfactant?
• How much alcohol dehydrogenase is there in the liver?
• Is the Omicron variant affecting the heart like the earlier COVID variants were? Are cardiac effects less likely if one is vaccinated?
• Where does the energy of GRB come from? (and a few more questions)
• Is the speed of random mutation to a genome affected by environmental stress?
• What is a human beings prime age to procreate? Genetically when is the best time.

Is the stomach basically a constant ‘vat of acid’ that the food we eat just plops into and starts breaking down or do the stomach walls simply secrete the acids rapidly when needed? Posted: 08 Feb 2022 12:15 AM PST Is it the vat of acid from Batman or the trash compactor from the original Star Wars movies? Or an Indiana jones temple with "traps" being set off by the food? submitted by /u/HumaniAlon [link] [comments]

Potentially a stupid question but does inbreeding affect wild animals as negatively as it does humans? Posted: 07 Feb 2022 09:21 AM PST submitted by /u/arogornvslegolas [link] [comments]

Because of the commonness of depression in humans, is it probable that it has some adaptive quality that has been selected for? Posted: 08 Feb 2022 12:57 AM PST submitted by /u/6rant6 [link] [comments]

When a person feels "run down", what systems or internal processes are creating that feeling? Posted: 07 Feb 2022 03:01 PM PST submitted by /u/efficiens [link] [comments]

If Meditation raises GABA levels, does it mean that over time it would lead to downregulation of GABA receptors? Posted: 08 Feb 2022 06:52 AM PST I've read that about supplements that raise GABA. If you keep using them the receptors get downregulated. However woudnt the same have to happen with other GABA-ertic activities? submitted by /u/fuckfcbauerninzest [link] [comments]

Does eye colour affect colour perception? Posted: 07 Feb 2022 06:56 AM PST Do e.g. green-eyed people perceive colours differently than e.g. brown-eyed people? I'm aware of the individual colour perception, but is it related to eye colour? submitted by /u/FingerLickingPoop [link] [comments]

What exactly happens to meat that gets a rubbery texture after microwaving? Posted: 08 Feb 2022 03:35 AM PST submitted by /u/AMiniMinotaur [link] [comments]

Are the Pyramids of Giza actually perfect? Posted: 08 Feb 2022 01:21 AM PST Hi Reddit fam Question… The Pyramids of Giza are almost perfectly aligned along the cardinal points. Given that we don't know much about how they came to be; it got me thinking… Is there a possibility that the pyramids were perfectly aligned according to the cardinal points, thousands of years ago, but the earth may be moving? Yes I know the land masses have changed and moved greatly over the years, but will that have an effect astronomically speaking in regards to cardinal points? If not, why not? Please can someone explain this to me? I am no scientist 😅🙏 submitted by /u/RosNic-Auto [link] [comments]

Is there a physical limit to how small a flame can get? Posted: 06 Feb 2022 04:41 PM PST I was watching my candle slowly burn out, and it got me thinking about this. submitted by /u/benbobbins [link] [comments]

Could you, theoretically, make an alloy of osmium and uranium? Posted: 07 Feb 2022 11:24 PM PST submitted by /u/Impossible_Way_6403 [link] [comments]

Why do sponges only get soft when soaked with water, but not with oil or pure alcohol? Posted: 07 Feb 2022 06:24 PM PST A dry synthetic sponge appears to soak up all three of these liquids - water, mineral oil, and pure isopropyl alcohol. But only liquid water will make it turn soft and easily compressible. Being liquid alone apparently isn't enough to soften a sponge, even though the sponge seems equally able to "hold" any liquid (not hydrophobic/oleophobic/etc) I haven't tried mineral spirits. I think even water steam (when aimed at a hot sponge, so as to prevent condensation) fails to make the sponge soft. Why is water special in this regard? submitted by /u/ffelix916 [link] [comments]

What determines if a gene is recessive or dominant? Posted: 07 Feb 2022 06:50 PM PST submitted by /u/cheese_stick_mafia [link] [comments]

How do subways run on a SINGLE line of wire? Every electrical outlet has two poles. Posted: 07 Feb 2022 06:42 PM PST Subways (or any electrified train for that matter) use overhead wires or third rails. Why are the overhead wires always a single wire? Why isn't there a "fourth rail"? submitted by /u/cantaffordfood [link] [comments]

What are the largest pathogens that the immune system can effectively fight? Posted: 07 Feb 2022 05:25 PM PST We know the immune system can fight viruses and bacteria, but can it fight things that are much larger? Can the immune system be effective against anything visible to the naked eye? submitted by /u/keenanpepper [link] [comments]

Is methane produced at the cathode during potassium briomide electrolysis? Posted: 07 Feb 2022 08:33 AM PST Would hydrogen react with carbon? submitted by /u/MCClipss [link] [comments]

what magnets were used in 19th century electromagnetic experiments? (i.e. Faraday's motor) Posted: 07 Feb 2022 02:36 PM PST what is the 'permanent bar magnet' that was used in Faraday's experiment? A lodestone or a metal rod that had been magnetised? how was it made? submitted by /u/PepperBoggz [link] [comments]

Weight of impact at terminal velocity? Posted: 07 Feb 2022 04:14 PM PST So, let's say you are falling off a skyscraper, and down below is an analog scale. As you reach terminal velocity and make impact with the scale, how much heavier would it read in comparison to your actual weight? For instance, if I jump on a scale, it will momentarily read a very high number due to the force of my body coming down. What would that ratio be at terminal velocity? (I'm about 135lbs if you want to use that number lol) submitted by /u/mrsethyo [link] [comments]

How does a clinical lab identify what bacteria you’re infected with? Posted: 07 Feb 2022 10:43 AM PST I've been curious about this and not been able to find a clear answer on the Google Machine. For example, say I went into the hospital and they sent a sample out for testing, how does the microbiology lab determine what kind of bacteria it is? Is it just a visual detection under a microscope? Also, when they test what antibiotics would work on the infection, is it an all-in-one identification test/device used, or are there separate tests for identifying the type of bacteria and what antibiotics would work best? submitted by /u/Semaphore98 [link] [comments]

Is it possible to form an electrolyte in an organic solution without using water or a surfactant? Posted: 07 Feb 2022 07:23 AM PST That's it, I just want to know if it's possible and in case it is, how and with what? Thanks submitted by /u/alejo5666 [link] [comments]

How much alcohol dehydrogenase is there in the liver? Posted: 07 Feb 2022 05:49 PM PST What is the mass of the alcohol dehydrogenase in the liver when drinking to break down alcohol at the standard rate of .015g/100mL per hour? submitted by /u/Jmoorelm [link] [comments]

Is the Omicron variant affecting the heart like the earlier COVID variants were? Are cardiac effects less likely if one is vaccinated? Posted: 07 Feb 2022 02:39 PM PST submitted by /u/uoflcards22 [link] [comments]

Where does the energy of GRB come from? (and a few more questions) Posted: 07 Feb 2022 07:40 PM PST A few questions I cannot really find the answer to. It is theorised that neutron stars are formed when gravity compresses iron and other heavy atoms to the point where protons and electrons fuse together to form neutrons. As I understand, this is would be due to the electron capture process mediated by the W bosons. Which is the same process as the decay of free neutrons into protons, just in reverse. Is this because of the T symmetry of the weak force? As for Gamma ray bursts Do we know the actual mechanism of how they form? I mean, something more profound than the formation of a blackhole due to the collapse of a star or merge/collision. Where does the released energy actually come from? Is it due to the fusion of whatever is inside a neutron star to whatever is inside of a black hole and/or particles disintegrating into pure energy/photons? Secondly, why does it come out of the poles? Is it because of the star's magnetic field? But given that photons are neutrally charged, why would the magnetic field matter? Thirdly, say you have a neutron star just on the edge of it's upper mass limit and a small comet crashes into to, taking it over the edge and making it collapse. Given the extraordinary amount of energy released by the GRB, would this mean that the mass of the resulting blackhole be lower than the one of the neutron star + comet? Thanks! submitted by /u/Maezel [link] [comments]

Is the speed of random mutation to a genome affected by environmental stress? Posted: 07 Feb 2022 10:42 AM PST Do the mechanisms that control mutation operate less effectively during sickness, starvation, etc? submitted by /u/Zipperskin [link] [comments]

What is a human beings prime age to procreate? Genetically when is the best time. Posted: 07 Feb 2022 06:41 AM PST Is there a biological prime time to have the most healthy children? submitted by /u/DearScreen7887 [link] [comments]

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Question from my 4.5 yo son: What color eyes did dinosaurs have?

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• Question from my 4.5 yo son: What color eyes did dinosaurs have?
• Why do our eyes feel so heavy when we are sleepy?
• How are rabies vaccines made?
• Can objects (such as wood) reach high temperatures without burning?
• Why don't other viruses nearly eradicated by vaccines not evolve to evade immunity like Covid does?
• Is it a coincidence that chlorophyll absorption spectrum overlaps the visible spectrum?
• How accurate have most climate change models been over the last fifty years?
• Antarctica with no ice sheets, does that account for isostasy?
• How is dopamine signaling in the mesolimbic pathway associated with positive symptoms of schizophrenia?
• Do inner electron shells decrease in diameter with more protons?
• Do some animals who are not humans come to prefer cooked food? It so, why?

Question from my 4.5 yo son: What color eyes did dinosaurs have? Posted: 05 Feb 2022 11:47 PM PST My 4.5 yo son loves drawing and learning. He's really into dinosaurs right now, so I got him a how to draw dinosaurs book and some children's level books on dinosaurs. After going through everything, he really wants to know what color eyes dinosaurs actually had, because he really likes to make his drawings realistic. I told him that we're making new discoveries all the time, but we still don't know some things, and he's down with that, because his books touched a lot on it. I tried looking up an answer, but I can only find recent discoveries on the color of their bodies/feathers. It's suggested that their eye color range would likely be similar to birds. Can anyone give me a more detailed/more accurate answer? Don't feel the need to skip out on details or bigger words, my son loves all the info he can get! I told him I'd have a good answer for him tomorrow when he wakes up. Thank you so much! submitted by /u/Waithowmanywasthat [link] [comments]

Why do our eyes feel so heavy when we are sleepy? Posted: 05 Feb 2022 03:24 PM PST submitted by /u/juanpgzze [link] [comments]

How are rabies vaccines made? Posted: 05 Feb 2022 11:39 PM PST What are the steps involved in making of Anti rabies vaccine? submitted by /u/ConcentrateSea2778 [link] [comments]

Can objects (such as wood) reach high temperatures without burning? Posted: 05 Feb 2022 03:23 PM PST I read a bit about active charcoal and how it's produced, so I got interested in the following: Does the wood only get heated (600-900 C) without necessarily burning? because burning wood creates ash, whilst active charcoal is from charcoal, which is not the same. Or is it inevitable for a combustible object to burn at high temperatures?' Edit: Additional info: To create active charcoal, wood is placed in an isolated fireproof container inside a hot system/fire with desired temperatures of 600-900 C for 4-6 hours. submitted by /u/qualityiscorrupt [link] [comments]

Why don't other viruses nearly eradicated by vaccines not evolve to evade immunity like Covid does? Posted: 05 Feb 2022 02:23 PM PST Covid-19 has seen lots of variants that evade the immune response from prior variants, either acquired from the virus or from vaccines made based on their spike protein characteristics. Measles is incredibly infectious but historically we were able to nearly eliminate it in the Western world. Why did it not evolve to evade vaccine induced immunity like Covid does? submitted by /u/zoopcupness [link] [comments]

Is it a coincidence that chlorophyll absorption spectrum overlaps the visible spectrum? Posted: 05 Feb 2022 12:09 PM PST Is there any physiological or evolutionary connection between the absorption spectra of chlorophyll and the rods and cones found in retinae? submitted by /u/lazyplayboy [link] [comments]

How accurate have most climate change models been over the last fifty years? Posted: 05 Feb 2022 07:22 AM PST We know that the earth is heating because of us, but how accurate have most models been over the last 50 years or so in regards to temperature change or other effects? You often see "but they said new York or Miami would be underwater by now" as a dismissal of climate change, but was that ever really a mainstream climate prediction? submitted by /u/rosecurry [link] [comments]

Antarctica with no ice sheets, does that account for isostasy? Posted: 05 Feb 2022 01:05 PM PST There are many 'fun-fact' compilations that state that if Antarctica was without ice it would be an archipelago, but I get the feeling this is just reading off the raw elevation stat for the bedrock underneath the ice sheet. Obviously over a short timescale like anthropogenic climate change there would be no isostatic readjustment, but in what-if scenarios where ice never formed on Antarctica surely we would need to factor in the isostatic effect the ice sheet has had? The question then is, if you model isostatic rebound for an ice less Antarctica, does it become a full continent? submitted by /u/L1qu1dN1trog3n [link] [comments]

How is dopamine signaling in the mesolimbic pathway associated with positive symptoms of schizophrenia? Posted: 05 Feb 2022 04:16 PM PST If the primary task of the mesolimic pathway is to mediate pleasure and reinforcement, how does it effect our auditory or visual experience? submitted by /u/Aaron_Fernandez [link] [comments]

Do inner electron shells decrease in diameter with more protons? Posted: 05 Feb 2022 09:13 AM PST I was actually paying attention to a science book for a change (Elements) and I noticed that within each row, atomic radius decreases as the elements go up. Such as Hydrogen 53pm and Helium 31pm. In the next row, Lithium, Beryllium, and Boron are 167pm, 112pm, and 87pm. I'm assuming but please check me that this is caused by the additional proton. That is, the extra positive charge both attracts a new electron and pulls the already present electrons in tighter. Building on this assumption, I started to wonder if the inner electron shells continue to shrink with every extra proton. The atomic radius, I presume, only measures the outermost shell, so I can't tell what the inner shells are doing. submitted by /u/nowducks_667a1860 [link] [comments]

Do some animals who are not humans come to prefer cooked food? It so, why? Posted: 05 Feb 2022 12:51 PM PST submitted by /u/airchinapilot [link] [comments]

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Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

If Cheetahs were extinct, would palaeontologists be able to gauge how fast they were based on their fossil record?

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• If Cheetahs were extinct, would palaeontologists be able to gauge how fast they were based on their fossil record?
• What is happening physiologically when you have a “knot” in a muscle?
• Why is the omicron wave *falling* so quickly in so many different political jurisdictions?
• Would plants still be green for photosynthesis if we had a different kind of star for our sun?
• The influence of Isaac Newtons spectrum at his time?
• Is it actually possible for a healthy individual to increase their lung capacity/function?
• Is it possible for animals to suffer from insomnia or other sleep disorders like humans do?
• Does having H1N1 t-cells help immunity against covid?
• How did the anus and urethra evolve?
• Do Animals physically discipline their kids, or is that a uniquely human thing?
• If a pregnant woman were to end up in a coma, would there still be childbirth?
• Can someone explain the physical or chemical mechanics of cleaning carrot juice with vegetable oil?
• Do as many interesting changes and reactions happen between, say, 10,000 Celsius and 10,200C as happen between 0C and 200C?
• Lagrange plot: what is it really?
• Why does phosphorus have 3 and 5 as its valency?
• Does albinism influence the body ability to synthesize Vitamin D from sunlight?
• What is the difference(s) between influenza A, B, C and D strains - and are their mechanisms of infection similar?
• How does heart transplantation work?
• Why are some veins squiggly?
• Why does chocolate keep its form until disturbed when being melted?
• What’s up with the nerves in a horse’s hoof?
• Do veins and arteries get wrinkles on flex points like skin does?

If Cheetahs were extinct, would palaeontologists be able to gauge how fast they were based on their fossil record? Posted: 04 Feb 2022 07:10 AM PST And how well are we able determine the speed and mobility of other extinct creatures? submitted by /u/moversby [link] [comments]

What is happening physiologically when you have a “knot” in a muscle? Posted: 04 Feb 2022 10:30 AM PST What is happening physiologically when you have a "knot" in a muscle? By knot I am referring to a tight or particularly sore area in a muscle belly. When palpated it can feel like a small lump or tense area. They tend to go away with stretching, and or some pressure to the area. submitted by /u/Tubby0518 [link] [comments]

Why is the omicron wave *falling* so quickly in so many different political jurisdictions? Posted: 05 Feb 2022 07:53 AM PST For example: In NY (and several other US states), daily new cases has dropped by ~75% in the past 2 weeks. That seems much faster drops in new cases than previous waves. Why are case rates, after the peak of the wave happens, dropping so very quickly? submitted by /u/astroproff [link] [comments]

Would plants still be green for photosynthesis if we had a different kind of star for our sun? Posted: 05 Feb 2022 07:21 AM PST Let's say we had a blue dwarf, neutrino, or red giant instead of Old Sol. Assuming we were still in a comparable habitable zone and life developed along similar lines, would our plants still be mainly green? submitted by /u/Borlongati [link] [comments]

The influence of Isaac Newtons spectrum at his time? Posted: 05 Feb 2022 08:43 AM PST Hello everyone, I wonder which influence Isaac Newton had with his discovery of the color spectrum and the invention of his color wheel at his time. I know that a lot of astrophysics today is done with spectralanalysis, but the spectralanalysis today is much more developed. Where did Newton had a direct influence with his color theory at his time? Who did use Newtons color wheel or spectrum so you could say Newton had a direct influence on him? submitted by /u/InternetRambo7 [link] [comments]

Is it actually possible for a healthy individual to increase their lung capacity/function? Posted: 05 Feb 2022 03:05 AM PST When I was a kid I uses to think free divers and other swimmers could increase their lung size via breath training, but it turns out training actually just increases CO2 resistance. Still cool, but I'm still slightly disappointed these swimmers aren't actually growing their lungs like muscles. So, my question is, is it impossible for a healthy adult to increase their lung capacity/function? submitted by /u/l1v1ng [link] [comments]

Is it possible for animals to suffer from insomnia or other sleep disorders like humans do? Posted: 05 Feb 2022 07:29 AM PST submitted by /u/flaminstraight [link] [comments]

Does having H1N1 t-cells help immunity against covid? Posted: 05 Feb 2022 08:29 AM PST submitted by /u/princesscoley [link] [comments]

How did the anus and urethra evolve? Posted: 04 Feb 2022 04:35 PM PST submitted by /u/Tuvey27 [link] [comments]

Do Animals physically discipline their kids, or is that a uniquely human thing? Posted: 05 Feb 2022 07:28 AM PST submitted by /u/Cwolf2035 [link] [comments]

If a pregnant woman were to end up in a coma, would there still be childbirth? Posted: 04 Feb 2022 10:45 AM PST Say that the woman is now braindead and 8-9 months pregnant, would the child die in the womb or would there be sort of an "inactive" birth where the body takes control? submitted by /u/inafonalie [link] [comments]

Can someone explain the physical or chemical mechanics of cleaning carrot juice with vegetable oil? Posted: 05 Feb 2022 05:45 AM PST I washed for the first time carrot juice stain from a new white plastic kitchenware whit vegetal oil. It blew my mind how effective it was! Looked like a magic trick... submitted by /u/RXY36 [link] [comments]

Do as many interesting changes and reactions happen between, say, 10,000 Celsius and 10,200C as happen between 0C and 200C? Posted: 05 Feb 2022 04:55 AM PST It seems like so much happens between 0 and 200 degrees, and I just imagine that up in the thousands of degrees stuff doesn't change all that much. Is it just our confirmation bias since we obviously evolved to notice and care more about things that relate to us, especially organic compounds? (Is there a whole potential series of compounds analogous to hydrocarbons that have lots of things happen between 10,000 and 10,200 that we don't know about/there aren't conditions for in the universe?) Is it that more things happen between 0-200 at our pressure, but just as much would happen between 10,000 and 10,200 at, say, 0.01 atm? Or is it that the number of "interesting" changes is the same according to a geometric change in temperature, rather than arithmetic? So between 273K and 473K is almost double the energy, so maybe the correct comparison is 10,000K and ~17,000K? Or is the answer yes, just as much interesting stuff happens at any given band of 200 degrees? submitted by /u/spacenegroes [link] [comments]

Lagrange plot: what is it really? Posted: 05 Feb 2022 03:28 AM PST There is a classic plot used to visualize or explain Lagrange points. Sometimes it uses isobars, sometimes it's 3d. You know the one. It's sometimes captioned as "potential energy". Sometimes people assume the gradient indicates the net force on a particle at that position. But what does this plot represent exactly? What is the value at an xy position? What is its unit? Is it scalar or vector? And why are the L4 and L5 points kidney-shaped "hilltops", implying a state of high energy? Aren't they supposed to be stable? submitted by /u/aaaidan [link] [comments]

Why does phosphorus have 3 and 5 as its valency? Posted: 05 Feb 2022 03:28 AM PST submitted by /u/Donk_Doge420 [link] [comments]

Does albinism influence the body ability to synthesize Vitamin D from sunlight? Posted: 04 Feb 2022 06:46 AM PST Also, does an albino individual need around the same amount of Vitamin D as a non-albino individual? submitted by /u/Jellye [link] [comments]

What is the difference(s) between influenza A, B, C and D strains - and are their mechanisms of infection similar? Posted: 04 Feb 2022 03:36 PM PST Hi r/askscience! Ive tried to do some personal research into the above question. Though I am aware that there are differences in the 'behaviour' of each individual species (D primarily affects cattle whereas A and B are infamous for seasonal epidemics in humans etc), I was just wondering what causes these differences in behaviour? Ive tried to find relevant papers, though most of those results focus exclusively on the subtypes of influenza A. I feel as though the answer might be obvious. If I were to hazard a guess, I would say that genetic variation has resulted in the evolution of four distinct strains (differing surface / spike proteins?), each with characteristic behaviour (host specificity, infectivity etc) differing one from the other. I might be completely wrong - but it was enjoyable to research. Any and all answers are greatly appreciated! submitted by /u/WowzarTM [link] [comments]

How does heart transplantation work? Posted: 05 Feb 2022 01:46 AM PST Hi there, I am a high school senior studying for my med school exam and the materials sent by the university are about the cardiovascular system, more specifically the part about the anatomy and physiology of the heart, and about heart failure (pathophysiology, diagnosis, treatment options, education), from Kumar and Clarks Clinical Medicine 10th edition. I was reading about non-pharmacological treatments for HF, and they mention heart transplantation, but further down it says that heart allografts do not function normally because of denervation. At first I thought they meant that receiving a heart allograft means you have to take life-long immunosuppresant therapy for it to work, but then I realized that the denervation part cannot be solved by immunosuppresants. Right now I am at a loss to be honest, how does heart transplantation even work? Do the nerves reattach themselves in some case? Because I genuinely don't see how it would work. submitted by /u/VLightwalker [link] [comments]

Why are some veins squiggly? Posted: 04 Feb 2022 06:37 AM PST For example in the eye you can sometimes see very squiggly veins, but also in other places on the body. Would it not make more sense if all our veins were straight, meaning they're shorter and less work would be needed to pump the blood across the body? Or is there a reason for the squiggles? submitted by /u/Nswl [link] [comments]

Why does chocolate keep its form until disturbed when being melted? Posted: 04 Feb 2022 07:51 AM PST So unlike most things (butter, candy, ice, etc..) that just turn into a puddle of liquid when melted, when I melt chocolate, usually on a double broiler, and refrain from constantly stirring it, the pieces of chocolate basically look the same but when touched by my spatula "spill" into their liquid form submitted by /u/UnculturedTeaPot [link] [comments]

What’s up with the nerves in a horse’s hoof? Posted: 05 Feb 2022 03:36 AM PST Obviously there's a reason behind this: https://www.reddit.com/r/interestingasfuck/comments/sl1x7c/a_horses_foot_without_the_hoof/?utm_source=share&utm_medium=ios_app&utm_name=iossmf? Are they motor or sensory? I have so many questions, I don't know where to start. submitted by /u/whel_sar [link] [comments]

Do veins and arteries get wrinkles on flex points like skin does? Posted: 04 Feb 2022 11:51 AM PST submitted by /u/mjcevans [link] [comments]

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AskScience AMA Series: Outer space. Dinosaurs. Religion. Origin of life. The confluence of these massively interesting topics is, oddly enough, meteorites. I study rocks that fall from the sky and how they have influenced our planet and culture... AMA!

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• AskScience AMA Series: Outer space. Dinosaurs. Religion. Origin of life. The confluence of these massively interesting topics is, oddly enough, meteorites. I study rocks that fall from the sky and how they have influenced our planet and culture... AMA!
• How are we always able to see light from the early universe?
• When a neuron makes a "new connection" is it physically a new connection?
• Could one make a vaccine to train one's immune system to attack their own body?
• During astronomical night, how much solar radiation reaches the ground?
• What happend to the asteroid Chicxulub?
• What's the difference between a nondiabetic and someone who's diabetes is in remission?
• What determines which salt would crystalize first if two of them are saturated in water?
• How big does a nebula have to be to form a star?
• What are the prerequisites for a chemical reaction?
• Why is it common for one low tide to be much lower than the other low tide that same day?
• The Amazon is currently capturing a section of the Orinoco watershed via the Casiquiare canal. Is this how it expanded, and if so, do we know how long it has been doing it? Furthermore, are there any candidate watersheds it might capture in the future?
• why do orbitals have different energy levels?
• About how many named humans do we have records of? How far back in history do we know a significant portion of the population's names, ie 50%?
• Do LFT’s Reflect Covid Severity in the Line Thickness or Darkness?
• When does Pfizer booster dose protection kick in?

AskScience AMA Series: Outer space. Dinosaurs. Religion. Origin of life. The confluence of these massively interesting topics is, oddly enough, meteorites. I study rocks that fall from the sky and how they have influenced our planet and culture... AMA! Posted: 03 Feb 2022 04:01 AM PST It is hard to imagine an Earth without the influence of meteorites... what would Earth be like without the Moon, or biology? What would humanity be like without electronics? What would Christianity or Islam be without cosmic intervention? Sure, the dinosaurs were killed off by a meteorite setting the stage for mammals to take over the planet, but neither dinosaurs nor mammals would have existed in the first place if rocks from space pelting Earth hadn't made it possible. My goal is to expose as many people as possible to the interesting and important history of meteorites on our planet. This includes how meteorites have shaped us, in raw materials, historical influence, and scientific discovery - I'm Greg Brennecka, and I try to do this in my book Impact through entertaining stories, poorly drawn figures, and a sense of humor. Short video about the topic of meteorite influence on the planet: https://www.youtube.com/watch?v=80z68GZd_Ek I'll be here at 12pm PT (3 PM ET, 20 UT), AMA! Username: /u/gregbrennecka submitted by /u/AskScienceModerator [link] [comments]

How are we always able to see light from the early universe? Posted: 03 Feb 2022 03:28 PM PST What if the photons that were emitted in the short period after the Big Bang (CBR) had all already passed this location in space? As long as the universe isn't expanding faster than the speed of light where we are, by sometime in the future shouldn't all primordial photons from everywhere that was heading in our direction have passed by us? submitted by /u/Grotein [link] [comments]

When a neuron makes a "new connection" is it physically a new connection? Posted: 03 Feb 2022 02:10 PM PST I have been reading about neuron function, and really artificial neuron logic. From what I have read the cell takes inputs, does something and turns the output off or on. But what I am really struggling to find is when we say there is a new connection or pathway in the brain, do the cells physically find each other and have a new physical connection or does an existing connection just get more consideration from the cell? submitted by /u/firemogle [link] [comments]

Could one make a vaccine to train one's immune system to attack their own body? Posted: 03 Feb 2022 12:00 PM PST As opposed to markers of some virus or whatever. Have there been incidents of people getting an autoimmune disease from vaccination trials? (obligatory: this is unrelated to covid, though perhaps the soreness from the booster is encouraging this on my mind. Very pro-vaccine, I am just curious if such a thing is possible) submitted by /u/FragmentOfBrilliance [link] [comments]

During astronomical night, how much solar radiation reaches the ground? Posted: 03 Feb 2022 03:26 PM PST On a moonless clear night (Sun is below 18° below the horizon and Moon is too dim / too deep below the horizon to cause any effect on the dark night sky), how much solar radiation (including IR, visible and UV) still reaches the ground? submitted by /u/aks304 [link] [comments]

What happend to the asteroid Chicxulub? Posted: 03 Feb 2022 09:52 AM PST That big asteroid hit earth and left a huge crater plus it killed 2/3 of all animal life, but where is the asteroid? Did it like bounce off of earth? Or did it like melt into the earth? submitted by /u/Altruistic_Drummer_7 [link] [comments]

What's the difference between a nondiabetic and someone who's diabetes is in remission? Posted: 03 Feb 2022 08:43 AM PST Hello, I've been having a hard time understanding this lately. I know that if a diabetic person achieves diabetes remission, they are still quite different in many ways. If they drink a soda or something for example, it will drive up their blood sugar far higher than a nondiabetic. From what I understand, diabetics have less beta cells/ decreased beta cell function, their gut does not release glp-1 at the same rate as a nondiabetic, and their cells in the liver and muscles do not have as many insulin receptors. As far as I know, the last two can be completely alleviated by weight loss and duodenal mucosal resurfacing. Is the loss of beta cells the only thing standing in the way of a true type 2 Diabetes cure? submitted by /u/Blue97 [link] [comments]

What determines which salt would crystalize first if two of them are saturated in water? Posted: 03 Feb 2022 11:24 AM PST So let's say we have a liter of water at room temperature and standard pressure. We start adding, spoon by spoon salt A and salt B to the water, until the liquid is saturated. Once we put in too much salt, what determines which salt will crystalize? ​ I'm asking because I wonder if it's possible to separate salt A from the water (in a salt A/water mix) by putting in salt B and hoping salt A would crystalize first before salt B would. submitted by /u/pimpek321 [link] [comments]

How big does a nebula have to be to form a star? Posted: 02 Feb 2022 11:02 PM PST A friend told me that a nebula can't form a star if it's too small; and that if it's large enough, it will form a red dwarf. Do we know how big the nebula has to be to form a red dwarf? submitted by /u/eatshitnerdface [link] [comments]

What are the prerequisites for a chemical reaction? Posted: 03 Feb 2022 01:40 PM PST What exactly is needed in two substances for them undergo a chemical reaction? For example, why does baking soda and vinegar react, and soap and fat react, but when I mix ingredients for a cooking recipe, there dont seem to be any reactions? Or are there reactions taking place but theyre not obvious. If so, do they combine and make new chemicals in the mixture? Or are some substances just able to chill around others on a molecular level. Mixable enough to incorporate in something like a recipe, but without reacting. submitted by /u/Whirlidoo [link] [comments]

Why is it common for one low tide to be much lower than the other low tide that same day? Posted: 03 Feb 2022 12:35 PM PST https://www.tide-forecast.com/locations/Santa-Cruz-California/tides/latest See chart in the link for example. The low tides today are 2.1' and -0.5'. Why are they so different? Also, what explains the pattern you can see from day to day on the chart, with the two low tides converging to about equal on Feb. 6, and then diverging again? I understand how the position of the moon, earth, and sun create tides so you don't have to explain the basics. Thank you! submitted by /u/surf_drunk_monk [link] [comments]

The Amazon is currently capturing a section of the Orinoco watershed via the Casiquiare canal. Is this how it expanded, and if so, do we know how long it has been doing it? Furthermore, are there any candidate watersheds it might capture in the future? Posted: 03 Feb 2022 05:21 AM PST submitted by /u/ResidentRunner1 [link] [comments]

why do orbitals have different energy levels? Posted: 03 Feb 2022 05:34 AM PST why do orbitals have different energy levels? and if orbitals are just a region in space where electrons in that energy level are found 90% of the time, then won't the ionisation energy change for different atoms of the same element, since in some atoms, the electron will be nearer to the nucleus than other atoms, making it more difficult to remove? if this is so, why is that there is only one fixed number for ionisation energy? sorry if i seem ignorant, just very confused submitted by /u/lmaolol42069 [link] [comments]

About how many named humans do we have records of? How far back in history do we know a significant portion of the population's names, ie 50%? Posted: 02 Feb 2022 08:34 PM PST I think that the title is pretty self explanatory. But basically if we only used existing records to list out as many people who have lived on the earth as possible, how many of them would we actually know their name? submitted by /u/TheQuestioningBeast [link] [comments]

Do LFT’s Reflect Covid Severity in the Line Thickness or Darkness? Posted: 03 Feb 2022 04:44 AM PST I see various posts and claims along the lines of "I'm almost clear now, the line was very faint [on my LFT]", and I wondered if there's any truth to this? Does the line simply turn dark in a binary sense - in response to a trigger from a separate detection mechanism? Or is the line the mechanism itself and the darkening/discolouration is the result of a chemical reaction to Covid, in which case I guess more Covid 'particles' would produce a stronger reaction? submitted by /u/comrade-quinn [link] [comments]

When does Pfizer booster dose protection kick in? Posted: 03 Feb 2022 02:20 PM PST How long after receiving the Pfizer booster shot until one can be considered reasonably protected? Could someone provide links to data from studies or from the manufacturer, no news articles please and thank you. submitted by /u/effbendy [link] [comments]

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