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Saturday, June 23, 2018

From a physics standpoint what is information?

From a physics standpoint what is information?


From a physics standpoint what is information?

Posted: 22 Jun 2018 07:20 PM PDT

If it is constantly being created it can't have mass right? So is information just instructions that are "coded" onto everything?

submitted by /u/a_fly_effect
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What is the biochemical origin of caffeine dependence?

Posted: 23 Jun 2018 07:16 AM PDT

There's a joke that if you've been drinking coffee for a long time, when you wake up you'll need a coffee to get you back to the point where you were before you started regularly drinking coffee. But, if you stop for a week or two, your baseline goes back up. What happens to regular coffee drinkers to lower their baseline wakefullness, and is it chiefly neurological or psychological?

submitted by /u/iorgfeflkd
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Does anyone have an explanation for why the wavelength between red and green has its own distinct color, yellow, whereas the wavelength between green and blue (cyan) simply looks 'blue-green'?

Posted: 22 Jun 2018 06:03 PM PDT

Is it just the way our brains interpret it? It seems to me that when you see the wavelength between blue and green, your brain 'displays' this in your mind as a combination of blue and green, whereas when you see the wavelength between red and green, your brain creates an entirely new color (similar to the way that your brain creates purple when you see red and blue simultaneously). I say this because yellow doesn't seem to have any relationship to red and green (or at the least its a weak one), whereas cyan seems to have a strong relationship to blue and gree. Let me know if you disagree, and why.

I would also talk about orange but I think orange does have a connection with red, at least a stronger connection than yellow has with either red or green.

I flaired this as neuroscience I hope that's correct.

edit - to be clear, I am aware that all colors are an illusion created by the brain, my point is that the brain created this illusion in a very different way when it comes to yellow as opposed to cyan as I explained above.

submitted by /u/treebeard555
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Why do crabs, lobsters, prawns etc change colour when cooked?

Posted: 23 Jun 2018 01:42 AM PDT

Does air temperature affect sound? If so is this to an extent we can perceive with the naked-ear? And lastly why/how?

Posted: 23 Jun 2018 01:17 AM PDT

To start, I'm (rightly or wrongly) convinced that I can hear the difference between boiling and cold water being poured into a cup.

I also spend a lot of time walking in the city and for the last few weeks it's been pretty warm in the UK. I feel like when the weather is warm (circa 25 degrees and upwards) that the sounds of things like traffic or construction sound different than in the winter.

To my ear, it feels softer/warmer but I wondered if this is a real thing I'm observing? Or am I, as my wife believes, talking rubbish?

My only thoughts so far is maybe the viscosity changes? But does viscosity apply to air?

Edit: typo

submitted by /u/Polldark01
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How are tunnels maintained? How do are they kept from collapsing over time?

Posted: 22 Jun 2018 07:41 AM PDT

If a tunnel cracks then how is it fixed? Do they have to be repaired from above?

submitted by /u/6178292016
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Does the infrared light emitted from the ISS radiators produce measureable thrust?

Posted: 22 Jun 2018 11:23 AM PDT

Do they have to account for radiator positioning when doing calculations for a stable orbit?

submitted by /u/Critwhoris
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Are redshift and blueshift noticeable to the human eye?

Posted: 23 Jun 2018 07:02 AM PDT

Doppler shift in sound is easy to hear when a car or ambulance goes by—but can the car actually change color due to red/blueshift, the light version of Doppler? Is the difference noticeable to our eyes on an everyday scale or even at all?

submitted by /u/GetRektRenekton
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Can an entire population become psychologically traumatized?

Posted: 22 Jun 2018 05:01 PM PDT

For example, after a major conflict like World War II, a terrorist attack like 9/11, or a mass-casualty incident like the Las Vegas shooting, could the entire population of a country or society become psychologically traumatized?

Could that population display symptoms of PTSD even if it didn't experience the traumatic event firsthand? If so, does the widespread publication of graphic photos and videos from these events (like 9/11 and the Vegas shooting) facilitate this?

submitted by /u/UnknownVariation
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Do insects show increased resistance to pesticide in a similar way that bacteria do to antibiotics?

Posted: 22 Jun 2018 11:19 AM PDT

Is consciousness independent or dependent on sensory input?

Posted: 22 Jun 2018 01:38 PM PDT

Does our sensory input feed into consciousness (independent), or is consciousness a product of sensory input (dependent)?

submitted by /u/ElysiumUK
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What happens when a very fast-moving atom collides with the human body?

Posted: 22 Jun 2018 09:12 AM PDT

Since "very fast-moving" is ill-defined, suppose the atom were moving at close to the speed of light, like in particle accelerators.

Specifically:

  1. Would it "hurt"? Would it cause short-term or long-term health consequences?
  2. Does it matter what kind of atom it is, eg. a very light atom like helium vs. a heavy one like iron?
  3. What if the atom were moving slower, such as at the muzzle velocity of a bullet?
submitted by /u/Y__Z____
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Is artificial gravity by way of spinning a vessel in space possible, or just a movie thing?

Posted: 22 Jun 2018 07:01 AM PDT

Are there any animals that can't be albino?

Posted: 22 Jun 2018 05:06 PM PDT

Are there any animals that can't be albino?

Additionally are there any animals (especially mammals) that can be albino but we have never seen an albino version of? Is there a list?

Thank you.

submitted by /u/Judson29102
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Friday, June 22, 2018

How would having a fish in the ISS work?

How would having a fish in the ISS work?


How would having a fish in the ISS work?

Posted: 21 Jun 2018 09:13 PM PDT

I was puzzling this with my friends and we ended up with a lot of questions. We had two assumptions: the fish was in a bowl, and the bowl had just regular water in it.

1) Would the fish be able to get oxygen from the water?

2) Would it be possible for the fish to flap its fins and create an air bubble around it? That would presumably kill it.

And beyond all this, would the fish be able to even handle being in 0 gravity?

Thanks

submitted by /u/loldeezesquids
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What causes the air to smell when a rain storm is moving in?

Posted: 21 Jun 2018 06:58 PM PDT

What are the practical differences between washing your hands and using hand sanatizer?

Posted: 21 Jun 2018 07:46 PM PDT

Please let me know if I should change the flair. Thanks!

submitted by /u/ash623
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Do certain languages have higher percentage of people who stutter?

Posted: 22 Jun 2018 07:01 AM PDT

I believe (as layman) that some sounds 'trigger' a stutter. Different languages have different sounds, so maybe there are languages that trigger stuttering more than other languages. And if so, which languages has the most people who stutter?

submitted by /u/JHtN
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Does rain fall in a pattern?

Posted: 21 Jun 2018 04:23 PM PDT

Is there an equation for how much water expands when turning from liquid to solid?

Posted: 21 Jun 2018 02:03 PM PDT

Do immediate family members share a scent?

Posted: 21 Jun 2018 08:25 PM PDT

Downvote away if this is silly, but I'm sitting here wondering what my newborn smells like to my cats.

Since my son is half my DNA and half my wife's, is his scent a mix of us as well?

submitted by /u/wsdmskr
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How do you ground electronics in space?

Posted: 22 Jun 2018 05:14 AM PDT

Usually here on Earth I know we do this by sinking grounding rods into the earth. How does space based electronics do it? I assume they don't tote a giant tub of dirt up into space, as funny as that sounds.

submitted by /u/silveroranges
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Why do our voices crack/change when emotional? What is the cause?

Posted: 22 Jun 2018 02:56 AM PDT

It seems to happen with a bunch of emotions too. Whether angry, upset, nervous or whatever.

submitted by /u/oDezX
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Do animals 'workout'? I'm not talking about weight lifting like humans do, but do they do forms of exercise just for the sake of improving themselves in anyway?

Posted: 21 Jun 2018 04:40 PM PDT

I've been wondering if animals have ever been observed training their bodies. This could mean an animal running to practice it's stride, a monkey continually slamming a heavy stick like a human swings a hammer, etc.

submitted by /u/slowww-poke
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How does anti-gravity work?

Posted: 22 Jun 2018 12:02 AM PDT

How does NASA and other countries space programs simulate a "zero gravity" experience for astronauts preparing to go to space? Are there ways to simulate an anti gravity force on earth, if so, how?

submitted by /u/phoodnfilo
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How do bird species pass the same songs and calls on through generations?

Posted: 22 Jun 2018 03:38 AM PDT

I understand that genes are passed on down generations, which helps determine birds' structure, size, plumage etc., and to a certain extent, behaviour. But something as specific as a very particular song or call with a certain number of notes at a certain speed with a high level complexity, which is incredibly accurate/similar over a vast geographical range and a vast time range too, through generation after generation?

I'm not talking about birds that mimic other sounds, and I don't believe young birds learn songs or calls from their parents (birds such as the cuckoo never interact with their parents for example). Humans obviously learn language from others, and apply that to a genetic ability to make sounds with their throat and mouth. While birdsong isn't anywhere near as deep as human language, it is still complex.

So is it really just developmental proteins containing instructions for behaviour as intricate as a bird's song, passed on genetically? How on earth can such information be stored? (I think I need to do more reading on genetics if that'st the case!)

submitted by /u/storpey
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Scientists find missing baryonic matter. Why is this significant?

Posted: 21 Jun 2018 09:37 PM PDT

Can someone explain why the significance of this discovery? Link to article here

submitted by /u/Maltitol
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Has there been an attempt to create a unifying measuring system?

Posted: 21 Jun 2018 05:40 PM PDT

By measuring system I mean like "metric", "empiral" etc.

And by unifying, I mean where all constants in well known formula (permeability, permittivity of vacuum, etc) resolve down to 1? I've always felt that if you scaled the metric system carefully you could effectively get rid of some, most, or even all constants.

submitted by /u/nerdyguy76
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Is there any correlation between a person having vivid imaginary friend/s as a child and growing up to have MPD/schizophrenia?

Posted: 22 Jun 2018 03:24 AM PDT

Why is nitrous oxide used as anaesthetic in surgery and why it has a laughing effect?

Posted: 22 Jun 2018 03:16 AM PDT

Doctors remove air from syringe before injecting medicine in body. What will happen if air gets injected in the body?

Posted: 21 Jun 2018 07:32 PM PDT

It is observed that after sucking liquid medicine from vial into syringe, there is air left in it. The doctor holds syringe in vertical position with needle at top and pushes piston from bottom till the air gets removed and little bit of liquid comes from needle. And then it is injected in body.

What if some air remains in syringe and gets injected in body? What effect will it have on our body?

submitted by /u/Supernova008
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How often are new species discovered?

Posted: 21 Jun 2018 04:41 PM PDT

Does anyone know roughly how many species (of any domain) humans discover per week/month? And if so, what are the more common types that get discovered? I feel like most of them would either be microbial or insects. Thanks!

submitted by /u/redditorsass9802
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why are different kinds of disinfectants used in different situations?

Posted: 22 Jun 2018 12:08 AM PDT

i'm specifically thinking of iodine hydrogen peroxide and rubbing alcohol ex. rubbing alcohol is used for shots iodine for surgeries and hydrogen peroxide for at home use on cuts and scrapes and i'm just wondering why they are used this way (my last post was removed for this so i would just like to clarify that i am in no need of advice and i will not change my general health practices based on any answers i receive i am only wondering why doctors recommend or use these disinfectants in these situations)

submitted by /u/CalebLF10
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Can insects, reptiles, or fish have actual emotions such as happy, sad, angry, or scared?

Posted: 21 Jun 2018 05:45 PM PDT

Not instincts, but actual emotions. Something outside of what their instincts tell them to do.

submitted by /u/Intergalactic-Spirit
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Are protons and neutrons polar or nonpolar?

Posted: 21 Jun 2018 10:26 PM PDT

Similar to how a water molecule is polar because part of the molecule is positively charged and part of it is negatively charged, I've recently been wondering if a proton or neutron is polar due to the placement of its quarks. There's no good information on this question online that's not in relation to its spin, or antiquarks, or something.

submitted by /u/chabbleor
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Do all observers agree on where their respective light cones are, regardless of reference frame?

Posted: 21 Jun 2018 06:24 PM PDT

And additionally: Do two observers with light cones that overlap agree on the sequence of events within that overlapping volume?

submitted by /u/loki130
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Thursday, June 21, 2018

Is it possible for a deck of cards to be shuffled accidentally into perfect order?

Is it possible for a deck of cards to be shuffled accidentally into perfect order?


Is it possible for a deck of cards to be shuffled accidentally into perfect order?

Posted: 20 Jun 2018 11:35 PM PDT

Can one even calculate the probability of this event?

submitted by /u/sp12beat
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How do plants know which direction to lean towards in search of light?

Posted: 20 Jun 2018 06:51 AM PDT

For instance, indoors where there's minimal light coming from one window like 30 ft away. Does the plant sense the UV radiation similar to how we feel 'hot' vs 'cold'?

submitted by /u/gigachadd
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AskScience AMA Series: We are Genomenon! We assist Clinicians and Pathologists in identifying and treating genetic diseases for patients seeking personalized medical care based on their genomic data. Ask us anything!

Posted: 21 Jun 2018 05:31 AM PDT

Mastermind, by Genomenon, is the first-in-kind genomic search engine that connects clinicians and researchers directly to the most impactful scientific literature in their field. It provides a web-based search on a full complement of medical literature comprising over 6 million full text genomic articles cataloging the genetic relationships to human diseases. With a simple query, Mastermind returns a list of prioritized, clinically relevant genomic articles including insight into gene, mutation and keyword matches for each article. We offer a free edition of the Mastermind Genomic Search Engine to clinical, research and academic institutions to advance genomic analysis and DNA data interpretation. Come ask us anything about precision medicine, genomic testing, bioinformatics, and more!

We'll be on from 2-5pm EST (19-22 UT), ask us anything!

submitted by /u/AskScienceModerator
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Does a schizophrenic person's "hearing voices" activate the hearing centers of the brain or is it more like the "voice" we "hear" when we think verbally?

Posted: 21 Jun 2018 04:45 AM PDT

Scientifically, I think the closest I could get to understanding how what it's like to experience auditory hallucinations is to answer whether the schizophrenic brain "looks like" it's actually hearing something when they hear voices.

I flair'd this with Neuroscience, but it could also be Psych. I can only pick one :/

submitted by /u/dedrop
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Why are clouds flat on the bottom? And when it rains do clouds get smaller?

Posted: 20 Jun 2018 07:52 AM PDT

How do we study black holes if everything that gets close to it, even photons, gets sucked in and crushed? What methods are used to verify what we are looking at is a black hole?

Posted: 20 Jun 2018 03:02 PM PDT

Why do mosquito bites itch?

Posted: 20 Jun 2018 01:24 PM PDT

Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology

Posted: 20 Jun 2018 08:12 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
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Why is cow manure used as fertilizer but not human manure?

Posted: 20 Jun 2018 08:06 PM PDT

What is the source of energy for vacuum fluctuations?

Posted: 20 Jun 2018 06:25 PM PDT

Why can't we make new elements by adding more protons an neutrons?

Posted: 20 Jun 2018 03:10 PM PDT

How do we know what fossils belong to which prehistoric species?

Posted: 20 Jun 2018 12:52 PM PDT

I understand that it is safe to assume that an entire skeleton found in one place is most likely going to be one species, but if we just find a single bone, scale, or track, how do we know that said fossil belongs to a specific species?

An example of this is a video I had just watched explaining that in 2017 we found 'scales' that belonged to a T-Rex that could either prove or disprove feathers on them. It didn't really go into depth about how we know it belongs to a T-Rex though, so I was wondering how we know it belongs to the T-Rex, and not some other species that just so happens to be similar to the Rex.

submitted by /u/mymymy23
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If I set up a convex lens or a concave lens in a medium that has a higher refractive index than the countercurrent of their (lens') content, would they have the opposite effect of what they did before?

Posted: 20 Jun 2018 11:56 AM PDT

What happens when you cross the black holes' event horizon?

Posted: 20 Jun 2018 04:23 PM PDT

How do animals such as cats and bears eat fish without choking on the bones?

Posted: 19 Jun 2018 09:13 PM PDT

On a muscular level, what causes a stiff neck?

Posted: 20 Jun 2018 10:51 AM PDT