Does the human stomach digest food as a batch process, or in a continuous feed to the rest of the digestive tract?

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• Does the human stomach digest food as a batch process, or in a continuous feed to the rest of the digestive tract?
• When we pee, does our bladder get rid of all of the urine, or does it have to keep some?
• Which factors determine the refractive index of a material and is there a theoretical limit to how big it can be?
• Are circadian rhythms universal or do they vary person to person or across cultures?
• Why does a solid-state device (eg. smartphone) still take time to boot? Without mechanical drives, what processes still take time to start?
• Are there any instances in nature of parasites leeching off of other parasites, essentially creating a chain of parasitism? If so, where?
• How much does ocean water temperature change at the shoreline?
• Do movement of electrons in an atom consume energy?
• Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
• Why are the days of Jupiter, Saturn and Uranus so fast compared to the days of Mercury and Venus?
• How, exactly, do we fall asleep?
• Could you, theoretically, uncook something?
• would we find more fossils near the edges of the tectonic plates?
• How is it that we can "hear" distance, as in, I know that a sound is coming from far away?
• Why are double and zero quantum transitions not allowed in quantum mechanics?
• The Uncertainty Principle is About a Fundamental Inability to Know Position and Momentum, Not an Instrumental/Technology Limitation. But aren't those indistinguishable empirically?
• I have a series of one layer TIFF files at hand. The same file will be dramatically larger (800 Mb vs. 300 Mb) if the layer is left as a layer, rather than the file flattened. What is happening?
• What is the farthest that the human eye can possibly see?
• Is there any significant amount of rock/debris between solar systems?
• How strange is it that the Higgs field has non-zero resting potential?

Does the human stomach digest food as a batch process, or in a continuous feed to the rest of the digestive tract? Posted: 25 Jul 2017 07:35 PM PDT submitted by /u/Halfloaf [link] [comments]

When we pee, does our bladder get rid of all of the urine, or does it have to keep some? Posted: 26 Jul 2017 06:44 AM PDT submitted by /u/whereisshe_ [link] [comments]

Which factors determine the refractive index of a material and is there a theoretical limit to how big it can be? Posted: 26 Jul 2017 06:31 AM PDT submitted by /u/toqac [link] [comments]

Are circadian rhythms universal or do they vary person to person or across cultures? Posted: 25 Jul 2017 06:23 PM PDT submitted by /u/niconiconeko [link] [comments]

Why does a solid-state device (eg. smartphone) still take time to boot? Without mechanical drives, what processes still take time to start? Posted: 26 Jul 2017 05:02 AM PDT submitted by /u/superhelical [link] [comments]

Are there any instances in nature of parasites leeching off of other parasites, essentially creating a chain of parasitism? If so, where? Posted: 26 Jul 2017 12:59 AM PDT submitted by /u/StrikersGaming [link] [comments]

How much does ocean water temperature change at the shoreline? Posted: 25 Jul 2017 08:13 PM PDT Can the water temperature at the shoreline/surf of the ocean change drastically from day to day? If so what causes these changes? Assuming that air temperature is similar both days. submitted by /u/hitbytruck [link] [comments]

Do movement of electrons in an atom consume energy? Posted: 25 Jul 2017 04:13 PM PDT So, although an electron's location can only be expressed in probability, can we still say that it still moves from one place to another? I understand that not by following an orbit or something, but still it "moves" or "changes place" right? If so, would it be right to say that an electron (this moving particle) does not consume energy to move? Please clear my confusions :) Thank you in advance! submitted by /u/ultimaonlinerules [link] [comments]

Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 26 Jul 2017 08:07 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]

Why are the days of Jupiter, Saturn and Uranus so fast compared to the days of Mercury and Venus? Posted: 25 Jul 2017 06:32 PM PDT There is absolutely no apparent pattern, no symmetry in those numbers, and there is no logic as to why, at least in my limited capabilities of course. It seems the bigger the planet, the faster it rotates, the smaller the planet the longer it rotates, except for Earth and Mars? Obviously I'm not an astronomer nor a mathematician. Planet Time Mercury 58d 15h 30m Venus 116d 18h 0m Earth 23 hours 56 minutes and 4.1 seconds Jupiter 0d 9h 56m text 0d 10h 42m text 0d 17h 14m submitted by /u/mookiebomber [link] [comments]

How, exactly, do we fall asleep? Posted: 26 Jul 2017 07:07 AM PDT What is the process going on in our brain? How do we get to that "off" switch? submitted by /u/SluttyButNotSlutty [link] [comments]

Could you, theoretically, uncook something? Posted: 25 Jul 2017 06:02 PM PDT submitted by /u/sweaterandsomenikes [link] [comments]

would we find more fossils near the edges of the tectonic plates? Posted: 26 Jul 2017 06:23 AM PDT and would entire records be lost in theory with enough movement/formation of the plates? submitted by /u/budgie88 [link] [comments]

How is it that we can "hear" distance, as in, I know that a sound is coming from far away? Posted: 26 Jul 2017 05:30 AM PDT I thought of this while viewing a helicopter about a quarter mile away. Is it because I know how a helicopter sounds up close? Or do certain frequencies get cut out at larger distances, making a unique sound? submitted by /u/ethanolin [link] [comments]

Why are double and zero quantum transitions not allowed in quantum mechanics? Posted: 26 Jul 2017 05:19 AM PDT I don't really know a lot about quantum mechanics but I found this as a side note in some lecture slides on NMR spectroscopy and got curious, since there was no explanation. submitted by /u/Tysanning [link] [comments]

The Uncertainty Principle is About a Fundamental Inability to Know Position and Momentum, Not an Instrumental/Technology Limitation. But aren't those indistinguishable empirically? Posted: 25 Jul 2017 03:58 PM PDT Basically what the title said. I understand it's a common misconception that the Uncertainty Principle is about instrumentation rather than a fundamental aspect of the universe, but isn't it empirically impossible to verify that? Meaning that a universe that has an Uncertainty Principle would be indistinguishable from a universe that has no UP, but instrumentation/measurement interference keeps you from measuring both to an arbitrary level of accuracy. Any experiment would give identical results for both possibilities, right? How is this resolved? Thank you in advance! submitted by /u/FormerDemOperative [link] [comments]

I have a series of one layer TIFF files at hand. The same file will be dramatically larger (800 Mb vs. 300 Mb) if the layer is left as a layer, rather than the file flattened. What is happening? Posted: 25 Jul 2017 07:49 PM PDT submitted by /u/simon_SAoS [link] [comments]

What is the farthest that the human eye can possibly see? Posted: 26 Jul 2017 03:14 AM PDT submitted by /u/SirTechGuy [link] [comments]

Is there any significant amount of rock/debris between solar systems? Posted: 25 Jul 2017 01:22 PM PDT In Passengers they're on an interstellar journey and would presumably chart a course avoiding stars/planets as well as they could. I'd think that'd be easy since space is so damn big. But this major plot point is them running into an asteroid field in the middle of nowhere and damaging the ship's computer. Is there really any chance of anything besides dust floating around in the space between stars? Or is that entirely fictional submitted by /u/cable5navaldive [link] [comments]

How strange is it that the Higgs field has non-zero resting potential? Posted: 26 Jul 2017 01:03 AM PDT I'm asking about the state of modern understanding of the Higgs field. Are there solid, convincing, well-accepted explanations for why and how the Higgs has non-zero resting mass? Or is it more like a hint at some (or several) possible underlying mechanisms that aren't well-accepted? Or is it a total mystery and an active area of research? submitted by /u/sgt_zarathustra [link] [comments]

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What affects whether rain comes down hard or soft?

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• What affects whether rain comes down hard or soft?
• How does a Sand Bubbler Crab sift food from sand?
• If the lepton anomalies (electron/tau/muon production rates) hold true, what happens next?
• Does a continuous bijection between [0,1]² and [0,1] exist ?
• Do any other monogamous species get "divorced"?
• Does UV light/radiation pass through clear plastic?
• Have we ever observed anything behaving as if it only existed in a lower number of dimensions?
• When something becomes bleached from the sun, where does the colour go?
• Why does the ground cool faster than the air at night?
• What's the minimum size necessary a thing has to be to be seen from the ISS?
• Can any AI currently find which 'key' features correlate to which responses by itself?
• What happens to electricity after it hits the ground?
• How do fish in the ocean not get dehydrated?
• Can you refract light in a circle with the right materials?
• Why are sloths so slow?
• I've read mention in particle physics that the spin of elementary particles is more abstract than actual "spin." Can someone explain this to me?
• Is there any significant correlation between the number of premarital sexual partners and the likelihood of divorce?
• Why are terrestrial planets with the same mass as our gas giants so rare?
• Is there a theoretical limit to the resolution/level of detail that a telescope could achieve, current technology notwithstanding?
• Is it theoretically possible for children to be born with the same genetic makeup at different times (not identical twins)?
• Each 10m underwater adds roughly 1atm in pressure. Does that change with liquids other than water? Would it be different in planets other than Earth?

What affects whether rain comes down hard or soft? Posted: 24 Jul 2017 01:12 PM PDT submitted by /u/aRandomGamerAppeared [link] [comments]

How does a Sand Bubbler Crab sift food from sand? Posted: 24 Jul 2017 07:25 PM PDT While watching The Hunt, I saw the segment where Sand Bubbler Crabs sift food from sand. The act seemed fluid to me as they brought the sand to their mouths and quickly sorted it away to form the inflated pellets they leave behind. I was curious as to how these crabs can seemingly sort small amounts of food and sand with ease, and how their mouths worked at a mechanical level. Are there any good diagrams or explanations as how this is done? submitted by /u/Senyu [link] [comments]

If the lepton anomalies (electron/tau/muon production rates) hold true, what happens next? Posted: 25 Jul 2017 04:22 AM PDT I'm referring to a recent review paper in Nature and papers from the LHC, this for example. The anomalies in for example beta B meson decay would have to (as I understand it) be mediated by a new force, and require a new understanding of fundamental Physics. Or are there good reasons to think that the repeatedly found anomalies will even out? submitted by /u/helm [link] [comments]

Does a continuous bijection between [0,1]² and [0,1] exist ? Posted: 24 Jul 2017 04:03 PM PDT submitted by /u/Moon_ire [link] [comments]

Do any other monogamous species get "divorced"? Posted: 25 Jul 2017 02:05 AM PDT As the title says, are there any other monogamous species that stay together to ensure the success of their offspring but then get divorced and find new partners? submitted by /u/Chappit [link] [comments]

Does UV light/radiation pass through clear plastic? Posted: 24 Jul 2017 04:08 PM PDT Does UV light pass through phone screen clear protectors? The transparent/clear protectors are made of PET and TPU. submitted by /u/ranannory [link] [comments]

Have we ever observed anything behaving as if it only existed in a lower number of dimensions? Posted: 25 Jul 2017 12:39 AM PDT submitted by /u/GrandpopLester [link] [comments]

When something becomes bleached from the sun, where does the colour go? Posted: 24 Jul 2017 01:14 PM PDT submitted by /u/Devilishlygood98 [link] [comments]

Why does the ground cool faster than the air at night? Posted: 24 Jul 2017 06:22 PM PDT I get it, "radiational cooling"...but that's just another set of vocabulary. It's not really an explanation. I'm not here to learn a set of words, I want to really understand. submitted by /u/lolalor [link] [comments]

What's the minimum size necessary a thing has to be to be seen from the ISS? Posted: 24 Jul 2017 01:34 PM PDT submitted by /u/mr_poopybuthole [link] [comments]

Can any AI currently find which 'key' features correlate to which responses by itself? Posted: 25 Jul 2017 03:16 AM PDT I'm unfamiliar with the field of AI, but from what I've heard in machine learning, researchers can initially specify a set of features and train a model to find parameters which predict response from these features. Feature selection and other methods can determine which features are better predictors. But what research has been done for AI finding these features by itself, without humans picking them? For example, say a system often prints 'start' before printing 'task'. The qualitative feature 'word printed before task', and specifically the value 'start', is good at predicting the response 'is task printed or not?' Can some AI discover these features by itself? If so, can anyone provide links to current research about this? submitted by /u/friapril [link] [comments]

What happens to electricity after it hits the ground? Posted: 24 Jul 2017 05:17 PM PDT Does it all just get stored up into the earth until one day, millions of years from now we get a massive arcing from the earth to the moon? submitted by /u/TMStage [link] [comments]

How do fish in the ocean not get dehydrated? Posted: 24 Jul 2017 04:15 PM PDT Humans can't drink salt water because it has so much salt right? So how do fish stay hydrated if they never access to fresh water? submitted by /u/chinchillada [link] [comments]

Can you refract light in a circle with the right materials? Posted: 24 Jul 2017 09:55 AM PDT submitted by /u/evansomers2 [link] [comments]

Why are sloths so slow? Posted: 24 Jul 2017 09:46 AM PDT submitted by /u/boithatsprettygood [link] [comments]

I've read mention in particle physics that the spin of elementary particles is more abstract than actual "spin." Can someone explain this to me? Posted: 24 Jul 2017 08:06 AM PDT submitted by /u/deethslagger [link] [comments]

Is there any significant correlation between the number of premarital sexual partners and the likelihood of divorce? Posted: 24 Jul 2017 02:46 PM PDT submitted by /u/stuckinasimulation [link] [comments]

Why are terrestrial planets with the same mass as our gas giants so rare? Posted: 24 Jul 2017 08:51 AM PDT Looking at the exoplanets that have been discovered, terrestrial planets on average are far less massive than gas planets. What stops gravity from pulling all that matter into a solid? Why are the densest planets normally far less massive than the least dense? submitted by /u/saturatedfatts [link] [comments]

Is there a theoretical limit to the resolution/level of detail that a telescope could achieve, current technology notwithstanding? Posted: 24 Jul 2017 06:58 AM PDT If some alien civilization 500 light years away had a powerful enough telescope, could they see what, for example, my roof looks like? What are the factors that limit the level of detail? I have no idea about the way light travels, etc, but I got to wondering, looking up at the sky the other night, if it was possible an alien with an insanely powerful telescope could see me standing in yard looking back at him/her/it. submitted by /u/Tropical_Jesus [link] [comments]

Is it theoretically possible for children to be born with the same genetic makeup at different times (not identical twins)? Posted: 24 Jul 2017 09:55 AM PDT Does each egg a woman has carry a different genetic code or could they be duplicated (same with sperm?) submitted by /u/mintyfisher [link] [comments]

Each 10m underwater adds roughly 1atm in pressure. Does that change with liquids other than water? Would it be different in planets other than Earth? Posted: 24 Jul 2017 11:21 AM PDT submitted by /u/vladesko [link] [comments]

You are subscribed to email updates from AskScience: Got Questions? Get Answers.. To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States

Is it likely that dinosaurs walked like modern day pigeons, with a back and forth motion of their head?

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• Is it likely that dinosaurs walked like modern day pigeons, with a back and forth motion of their head?
• What would happen if I created a wave motion from lots of small rods going up and down (at subliminal speeds), where the "speed" of the troughs and peaks was faster than the speed of light and then I dropped a small ball in a trough?
• How did the evolution that produced the Angler fish work, especially the sexual dimorphism?
• Lightning equalizes charge between the ground and air - but how does that charge get to be different?
• Logistically, how do you move terminally ill patients - particularly across the ocean? e.g. Charlie Gard
• According to some reports, Arabia was once a "lush green paradise" with monsoon rains. What happened to it?
• How is it that different breeds of Canis lupus familiaris (domesticated dog) can develop to be so different in specific individual populations around the world, yet not be subject to speciation?
• Is there any UV radiation at night time?
• What shape is the universe? Also what's outside of the universe?
• how does the BENDS effect people in submarines? shouldn't the atmospheric pressure within the submarine be controlled?
• Why is the ocean salty?
• What machine/process is used to apply a mirror finish to sunglasses?
• Is it possible to estimate the amount of biomass that went into the creation of a tank of gas?
• When copying files between hard drives, why does data transfer speed increase exponentially (before reaching the peak)?
• How's do you mathematically define stability of, for example, a objects orbit?
• How do websites/apps keep track of who accesses them? What kind of information does the owner of a website/app get without the user giving it up?
• Is it possible to create visible light by the interference of infrared and ultraviolet light? If yes what would we see?
• What is a holosystolic murmur?
• What does it physically mean, when a wave function carries an irreducible representation of a crystal lattice?

Is it likely that dinosaurs walked like modern day pigeons, with a back and forth motion of their head? Posted: 24 Jul 2017 01:13 AM PDT submitted by /u/SantiGE [link] [comments]

What would happen if I created a wave motion from lots of small rods going up and down (at subliminal speeds), where the "speed" of the troughs and peaks was faster than the speed of light and then I dropped a small ball in a trough? Posted: 24 Jul 2017 07:58 AM PDT As I understand it, it's possible for the peaks and troughs to "move" faster than the speed of light, because it's not really movement, it's just perceived movement, but what then happens if a ball is dropped in a trough and stays in it, being pushed along with the wave motion. I hope what I'm describing makes sense! It would be a long line of rods moving up and down in sequence to create the wave. submitted by /u/lindymad [link] [comments]

How did the evolution that produced the Angler fish work, especially the sexual dimorphism? Posted: 24 Jul 2017 01:30 AM PDT If evolution is just a series of small mutations, wouldn't males getting smaller and weaker jaws make them less likely to survive? How did the parasitism even evolve? Did a male angler fish suddenly think, okay I'm just going to bite this female, and somehow they fused? submitted by /u/Crafe [link] [comments]

Lightning equalizes charge between the ground and air - but how does that charge get to be different? Posted: 24 Jul 2017 12:58 AM PDT submitted by /u/Edgeofnothing [link] [comments]

Logistically, how do you move terminally ill patients - particularly across the ocean? e.g. Charlie Gard Posted: 24 Jul 2017 07:00 AM PDT Charlie Gard is currently on mechanical ventilation. If the UK High Courts had approved his transportation to the United States, how would that work? What would the costs be? submitted by /u/send_me_newds [link] [comments]

According to some reports, Arabia was once a "lush green paradise" with monsoon rains. What happened to it? Posted: 24 Jul 2017 02:01 AM PDT https://www.google.com.pk/url?sa=t&source=web&rct=j&url=http://www.bbc.com/earth/story/20150223-arabia-was-once-a-lush-paradise&ved=0ahUKEwjy5fLIxKHVAhWD7BQKHUWPCdQQFghkMAs&usg=AFQjCNFveqGomrplW9cUJwV2AEZtyfYtNg Why is it all sandy and hot now? What happened? I think it is explained in it that Monsoon passes it every 23,000 years? Why is that? Why 23,000 years? What are the factors behind the arrival of the monsoon, the time, and it leaving? If I'm being wrong and there is no monsoon, then can you give me the reasons it's hot and dry now? submitted by /u/NoorArif [link] [comments]

How is it that different breeds of Canis lupus familiaris (domesticated dog) can develop to be so different in specific individual populations around the world, yet not be subject to speciation? Posted: 24 Jul 2017 07:29 AM PDT Distinct breeds exist that vary in size, shape, and other physical qualities greatly, and have evolved that way in specific populations across the globe. Does the way humans selectively bred the species have something to do with it? submitted by /u/spoofbot [link] [comments]

Is there any UV radiation at night time? Posted: 23 Jul 2017 03:24 PM PDT Perhaps from the moon, etc. What about in cloudy nights? submitted by /u/ranannory [link] [comments]

What shape is the universe? Also what's outside of the universe? Posted: 23 Jul 2017 02:19 PM PDT submitted by /u/chickenandwaffles061 [link] [comments]

how does the BENDS effect people in submarines? shouldn't the atmospheric pressure within the submarine be controlled? Posted: 24 Jul 2017 03:12 AM PDT everyone knows to never go flying the same day you're in the deep sea, but if you're in a submarine, why does it matter? Aren't we able to maintain sea level atmospheric pressure within the submarine no matter how deep we go? if not then how come, because i believe airplanes are pressure controlled so the tech should be there submitted by /u/CptSnowcone [link] [comments]

Why is the ocean salty? Posted: 24 Jul 2017 12:43 AM PDT submitted by /u/mikemachlin [link] [comments]

What machine/process is used to apply a mirror finish to sunglasses? Posted: 24 Jul 2017 06:21 AM PDT submitted by /u/23523536 [link] [comments]

Is it possible to estimate the amount of biomass that went into the creation of a tank of gas? Posted: 24 Jul 2017 05:40 AM PDT I know crude oil came from the accumulated decomposition of plants and animals over millennia. Let's say I had a time machine that could rewind a tank of gas back into the organisms it came from - how much biomass would I have? Like, the equivalent of a few shrubs? A small grove of trees? An entire forest? submitted by /u/Speckles [link] [comments]

When copying files between hard drives, why does data transfer speed increase exponentially (before reaching the peak)? Posted: 24 Jul 2017 05:21 AM PDT Hi. I just copied some video files from my external hard drive to an internal one and noticed how the transfer speed started very low and grew almost perfectly exponentially before reaching and hovering around the max. I took a screenshot: http://imgur.com/a/5lUbV I was wondering if the transfer speed always grows this neatly and what the reason behind that is. submitted by /u/NikiHerl [link] [comments]

How's do you mathematically define stability of, for example, a objects orbit? Posted: 24 Jul 2017 02:40 AM PDT It can be easy to observe whether or not something is stable, i.e. a pencil being balanced on the end of a finger. But what would constitute a mathematical definition of mechanical stability? Is it situationally dependent? submitted by /u/Appaulingly [link] [comments]

How do websites/apps keep track of who accesses them? What kind of information does the owner of a website/app get without the user giving it up? Posted: 24 Jul 2017 01:47 AM PDT Do they know the IP address of the computer accessing the website? The user's ISP? The user's app store login? I'm just wondering how websites deal with spam/unwanted content. submitted by /u/Juan-man [link] [comments]

Is it possible to create visible light by the interference of infrared and ultraviolet light? If yes what would we see? Posted: 23 Jul 2017 03:14 PM PDT submitted by /u/GipsyJoe [link] [comments]

What is a holosystolic murmur? Posted: 23 Jul 2017 04:02 PM PDT I understand that systolic murmurs can be midsystolic, early systolic, late systolic, and holosystolic. Since the name doesn't lend much to understand its timing, what is a holosystolic murmur? submitted by /u/hood_yoda [link] [comments]

What does it physically mean, when a wave function carries an irreducible representation of a crystal lattice? Posted: 23 Jul 2017 08:26 AM PDT submitted by /u/Lt_Peanutbutter [link] [comments]

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