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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

Wednesday, June 20, 2018

Do ticks or other blood sucking bugs (mosquitoes, etc) show preference to certain people?

Do ticks or other blood sucking bugs (mosquitoes, etc) show preference to certain people?


Do ticks or other blood sucking bugs (mosquitoes, etc) show preference to certain people?

Posted: 19 Jun 2018 12:55 PM PDT

I'm currently on a hike and my friends have found about 1-3 ticks each while I've found 17 and an hour later another 15. Is there a reason that ticks seem to 'love' me much more than my friends?

submitted by /u/WillyD15
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What’s the fastest spinning man made object? What’s the fastest spinning natural object?

Posted: 19 Jun 2018 10:17 AM PDT

Why is poo brown?

Posted: 20 Jun 2018 01:46 AM PDT

How small can an object be in space and still support an atmosphere?

Posted: 20 Jun 2018 03:04 AM PDT

I'm assuming it would not only require enough mass but maybe a magnetic field too. Could a large asteroid potentially have a very thin atmosphere? Thanks.

submitted by /u/spawlicker
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Are there any organisms here on Earth that would have no problem surviving on other planets/moons in our solar system?

Posted: 19 Jun 2018 04:56 PM PDT

I understand we've found (or found evidence of) ice and liquid water on other planets and moons. Are there any organisms that would likely be able to survive on any of them?

Not suggesting we should, but I guess what I'm getting at is, would it be possible to send a population of organisms to other planets and moons, and expect them to thrive and grow?

Are there particularly resilient organisms that you'd expect to successfully survive and procreate on Mars or Europa?

submitted by /u/DoNotReadNegatively
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How would superconductor work at all?

Posted: 19 Jun 2018 08:02 PM PDT

Let say I have a superconducting electromagnet and I want to use it to lift a magnetic object. I apply some voltage to the electromagnet from a battery, because of Ohm's law, I=V/R the current would be infinite and because P=VI the power consumption would be infinite and it would drain the battery's energy in 0 second so I wouldn't even able to life the magnetic object for 1 second. Well, let say the voltage is 0 because the resistance is so low then the current would be 0 and because P=VI the power consumption would be 0 and the electromagnet wouldn't lift the magnetic object at all because there're no energy going into the electromagnet.

submitted by /u/Gabriel38
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What gives new book its unique smell?

Posted: 19 Jun 2018 05:34 PM PDT

So why do we named galaxies NGC #####?

Posted: 20 Jun 2018 05:36 AM PDT

I am currently curious as to why we name most galaxies just numbers instead of giving them real names actually? It's honestly superior to know which galaxies are which when they're called the "Sombreo" galaxy or the "Pinwheel" galaxy similar as to how nearby stars have named like Centauri, Bernard's Star, Sirius etc

submitted by /u/feelmysoul01
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Why does the soil rise around constructions?

Posted: 20 Jun 2018 04:09 AM PDT

When I build a terrance, I always build it a few inches above ground level. Though no matter how well the foundation is laid, the soil still rises above it in a few years. Why does the soil rise above such contructions?

submitted by /u/Sa-alam_winter
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Does the pressure around a solid have an effet on its vibrations ?

Posted: 20 Jun 2018 03:57 AM PDT

For example, if I were to hit a drum on earth and in space, would there be any difference in the vibrations of the drum ? Of course the sound wouldn't be heard in space because of the vacuum-like environment, but would the object still vibrate in the same way (frequency, amplitude, etc) ?

submitted by /u/SaintRebbel
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Why is the fine structure constant called "fine structure"?

Posted: 19 Jun 2018 09:04 AM PDT

Are all anti-leptons unstable?

Posted: 19 Jun 2018 09:31 AM PDT

I couldn't find any info on the internet.

submitted by /u/emregunduz
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Why can’t we harness the Casimir effect as an energy source?

Posted: 19 Jun 2018 11:12 AM PDT

Sixty Symbols- Casimir Effect and Black Holes From what I understand it would not ever produce too much energy even if harnessed. Let me be clear I am a chemistry undergrad senior with only basic knowledge of physics, so please excuse my naïvety; but would it be possible to use plates with some sort of piezoelectric properties to convert the pressure differential between the inter-plate space and outer-plate space into an electric charge that could be exported to a battery? Or am I misunderstanding the kind of energy differential between those plates? The smart-ass sci-fi buff in me wants this to be a viable theory, but I've read countless times that there's absolutely no way it could work; and i've always found the explanations lacking. Can anyone explain this one to me?

submitted by /u/PizzaDickOrDickPizza
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How do plants move?

Posted: 19 Jun 2018 07:24 AM PDT

Hey r/askscience,

Today my mom put some flowers in a bowl with water and as i watched them closing i started to wonder what actually causes the movements of plants.

With movement i mean for example the opening and closing of the blossom and the sunflower orientating itself towards the sun

How do they do that? What kind of mechanism does that?

submitted by /u/N1biru
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Is there any way to tell foreshocks from the main quake?

Posted: 19 Jun 2018 07:23 AM PDT

Will be travelling to Osaka next week. Is there any way to tell whether an earthquake is a foreshock or the main quake until weeks/months after it happened? What's the probability the 6.1 Osaka quake was the main quake? (If possible to tell) Thanks!

submitted by /u/thepostmanpat
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Why do mosquito bites cause a lump on your skin that itches?

Posted: 19 Jun 2018 11:22 AM PDT

Basically what the title is asking. Is it some kind of allergic reaction that all humans are allergic to?

submitted by /u/Vexonal
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How do weather stations distinguish between the actual temperature and what it feels like outside?

Posted: 19 Jun 2018 01:35 PM PDT

How does room temperature salt added to ice lower its temperature?

Posted: 19 Jun 2018 07:35 AM PDT

I can't understand how ice, which is 0 degrees, can LOSE temperature when room temperature salt is added to it. On a fundamental level it doesn't make sense. There are so many questions.

I've read that the process of melting absorbs energy, but that just makes me think then surely it can't melt. If freezing releases energy and melting absorbs it, does that mean the process interferes with itself? Water freezes, which releases energy, which should melt it again.

If the temperature of the ice drops, where's that energy gone? I mean it has to still be there. If it still has the same energy, why is the temperature less?

Temperature is just particle movement, right? So temperature dropping means the particles are moving more slowly. I guess salt makes the molecules in the ice both detach from each other (melting the ice) AND makes them move more slowly than they were when they were attached. Is that accurate?

I've tried reading explanations but they just say a) salt lowers the melting point so it melts and b) melting absorbs energy so it gets colder. But I still don't feel like I understand.

submitted by /u/Pluvialis
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Why is CO more dangerous to the body than CO2?

Posted: 18 Jun 2018 11:22 PM PDT

Why does one less oxygen ion make it more dangerous to inhale? Carbon monoxide (CO) vs carbon dioxide (CO2)

submitted by /u/Perfectclaw
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Tuesday, June 19, 2018

What types of signals do bees release under distress or after death?

What types of signals do bees release under distress or after death?


What types of signals do bees release under distress or after death?

Posted: 18 Jun 2018 10:01 PM PDT

Today I opened the window to my apartment for about 3 minutes. One bee got in, so I closed the window. The one that got in continuous made buzzing noises and hitting the glass window to get out, it died within 2-3 minutes. One minute later there's about 10 bees slamming into my window trying to get in. Did the trapped bee release some sort of stress signal that I can't observe?

submitted by /u/Haffie13
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What determines how long a rumble of thunder will last?

Posted: 18 Jun 2018 06:32 PM PDT

Could sand be considered a fluid?

Posted: 19 Jun 2018 12:27 AM PDT

Fluid is a state where the body can easily change it's shape with little force applied, it takes a shape of the vessel it is put in. Sand on a macro scale ( so thousands/millions of grains rather then a single few) also has those qualities. As such can it be considered a fluid? Of not can a powdrr with smaller grain size be considered a fluid? Where is the boundary ?

submitted by /u/Lolovitz
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When a rechargable battery is made, does it start out at full charge or no charge?

Posted: 18 Jun 2018 08:09 PM PDT

How do animals know that they should perform certain behaviours, even if never shown by their parents/peers?

Posted: 18 Jun 2018 11:21 PM PDT

For example, my rabbit was kept in a hutch from birth separated from the mother. And as soon as I took her home and allowed her to run in my backyard under supervision, the very first thing she did was start digging a burrow. How did she know to do that? She had never, ever been shown to do that by any other rabbit.

submitted by /u/TheSoulOfTheRose
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Why doesn't a moving massive object within a black hole's event horizon affect the gravitational force of the black hole (including said object) felt by observers outside the event horizon?

Posted: 18 Jun 2018 12:48 PM PDT

Consider Alice, drifting just outside the event horizon, and Bob, located 1 meter away, just inside the event horizon. As Bob starts drifting towards the center of the black hole, the distance between him and Alice increases and one would think that the gravitational force experienced by Alice (caused by Bob and the black hole) should decrease. But obviously this can't be the case since no information can escape the event horizon. But how should one think in order to understand this? Is there even a simple way to describe why this cannot be so? A related question: does the gravitational force of a black hole behave as if all mass contained within the event horizon was located at the center of the black hole?

submitted by /u/marr1977
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What impacts the speed at which lava flows on land other than gravity?

Posted: 18 Jun 2018 10:14 PM PDT

Video example: https://www.youtube.com/watch?v=gnrg3cfDfrY

I have never seen anything like this and it seems completely impossible. All video I can find of lava flow is extremely slow when not falling down a steep pitch.

submitted by /u/literallyHlTLER
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Why do some foods go bad, but others go stale?

Posted: 18 Jun 2018 07:21 PM PDT

You can have a bag of chips open for a month and eat out of it. You won't get sick but it may go stale. You can leave a raw potato out for a week and it will be just fine, but the moment you cook it, it spoils when you don't refrigerate it. Why do some foods spoil but others are seemingly fine?

submitted by /u/wtfisAntifa
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Will the Physics change after superconductors?

Posted: 18 Jun 2018 08:59 PM PDT

Super conductors are the conductors wilth "ZERO" resistance. If I was attentive in my 9th grade I remember that every object has a resistance to offer. In this case of what I have researched and understood is that the super conductors will provide a energy which will never end. If explained in simple way if powered once the electrons present will be powered and if there's no resistance it will never loose it's energy (meaning having indefinite energy supply) and will revolutionised our ordinary day. Now if I remember my 8th grade, I had a sentence stating that Energy can't be created nor destroyed. I cannot understand how the super conductors have Zero Resistance and provide indefinite energy. Now the main question is if we get to control the super conductor and use it in daily life, many fundamental laws as the law of conversation of energy, Newton's laws, etc, will get Disturbed. Need your opinions

submitted by /u/RamblingBulgie9090
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Does everything become solid?

Posted: 18 Jun 2018 01:19 PM PDT

If cooling something down really reduces the kinetic energy of the particles, thus changing the state of matter from (plasma), gas to liquid, to solid- shouldn't everything, gasses included, turn to a solid at absolute zero? If so, how would a solid oxygen look like? If not, why so?

submitted by /u/jjcaderr
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Why are fighter jets so much louder than passenger jets?

Posted: 18 Jun 2018 12:23 PM PDT

Is there a favoured hypothesis regarding increased mortality rates and anxiolytics?

Posted: 18 Jun 2018 02:29 PM PDT

According to a number of articles I've read on the NCBI site, anxiolytic and hypnotic drugs have a notable correlation with increased mortality (apparently even after correcting for confounding factors). Is this accepted as a likely causal link, and is there a favoured hypothesis as to what the specific cause might be?

It seems strange/concerning that an entire category of drugs, some of which aren't chemically similar, has this correlation with increased mortality.

submitted by /u/burf
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Does woodwind instruments change pitch when played at different atmospheric pressures?

Posted: 18 Jun 2018 03:52 AM PDT

Woodwind instruments produce pitch by having a standing wave in the air of a tube. Would changing the pressure (or the type of gas) in the tube change the frequency of the standing wave?

submitted by /u/12112122
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Can objects that pass inside of an event horizon go into orbit around the singularity?

Posted: 18 Jun 2018 05:38 PM PDT

Are there any techniques on collecting Anti-matter?

Posted: 18 Jun 2018 10:14 AM PDT

Has there ever been a collection of anti-matter done, or has anti-matter when ever produced/collected been just one or two particles at a time?

submitted by /u/Could_0f
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