| 6415 |
/u/pensivebadger |
This coconut oil melted during a heat wave and later re-solidified. Why did it form this honeycomb structure? |
| 6208 |
/u/Chlorophilia |
Why is it normal for children in practically all cultures to call parents "Mother" or "Father" rather than their real names? |
| 5657 |
/u/MockDeath |
A message to our users |
| 5575 |
/u/VeryLittle |
This is not a 'cicada year,' but I hear one buzzing outside right now. Is there a small set of cicadas out of sync with the main population, or do a few mistakenly mature early every year? Or is this a different species entirely? |
| 5525 |
/u/powerpuff_threesome |
I've heard that one of the purposes of the "fresh cut grass" smell is a type of distress signal that warns nearby plants to start moving nutrients to the roots before they get cut down. Is there any truth to this? |
| 5476 |
/u/thelonelyward3 |
Windows 10 says pins are safer than passwords how can this be when passwords have more combinations? |
| 5460 |
/u/AskScienceModerator |
New Horizons flies by Pluto in 33 Minutes! - NASA Live Stream |
| 5408 |
/u/HalJohnsonandJoanneM |
My textbook says electricity is faster than light? |
| 5398 |
/u/ontheverge73 |
What would happen to me, and everything around me, if a black hole the size of a coin instantly appeared? |
| 5252 |
/u/ttothesecond |
If I wanted to randomly find someone in an amusement park, would my odds of finding them be greater if I stood still or roamed around? |
| 5158 |
/u/phrresehelp |
Could a modern day human survive and thrive in Earth 65 million years ago? |
| 5071 |
/u/AMA_or_GTFO |
My girlfriend insists on letting her restaurant leftovers cool to room temperature before she puts them in the refrigerator. She claims it preserves the flavor better and combats food born bacteria. Is there any truth to this? |
| 4744 |
/u/Moore1994 |
If I flip a coin 1,000,000 times, what are the odds of it beings heads AND tails 500,000 times? |
| 4681 |
/u/_brokecollegestudent |
How long would it take a modern computer with code breaking softwear to crack the German enigma code from WW2? |
| 4644 |
/u/Actionmaths |
Why do wind turbines only have 3 blades? |
| 4643 |
/u/GATOR7862 |
Do sound canceling headphones function as hearing protection in extremely loud environments, such as near jet engines? If not, does the ambient noise 'stack' with the sound cancellation wave and cause more ear damage? |
| 4599 |
/u/jk_here4all |
Does sexual preference (Straight/LGBT) change on memory loss ? |
| 4558 |
/u/ImTheConan |
IF sound could travel through space, how loud would The Sun be? |
| 4548 |
/u/naegermeister |
How the heck do jellyfish work if they have no brain or no blood? |
| 4532 |
/u/JoeFalchetto |
Why don't we take blood from dead people? |
| 4487 |
/u/jackwreid |
Given time to decompress slowly, could a human survive in a Martian summer with just a oxygen mask? |
| 4431 |
/u/p0yo77 |
If we were far enough from earth, could we see the dinosaurs alive? |
| 4336 |
/u/Hoggzeh |
How much shallower would the Oceans be if they were all devoid of life? |
| 4288 |
/u/SayNoToFatChicks |
How do we know that there is a "Pluto-size ball of solid iron that makes up Earth's inner core"? |
| 4198 |
/u/Nogamename11 |
Can dopamine be artificially entered into someones brain to make them feel rewarded for something they dont like? |
| 4184 |
/u/babuguuscooties |
We know we'll see a supernova in 2016 because we've already seen it happen due to gravitational lensing. How is this possible? |
| 4177 |
/u/AskScienceModerator |
Kepler 452b: Earth's Bigger, Older Cousin Megathread—Ask your questions here! |
| 4159 |
/u/diminutive_sebastian |
Why is it that, if you add any sequence of numbers like this (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1), the sum is always the square of the largest number? |
| 4151 |
/u/A_Monsanto |
How common is it for animals to die during hibernation? |
| 4147 |
/u/mayorofboxtown |
How can I explain to my boss that we did in fact have sufficient computing power in 1969 to perform the complicated maneuvers required to land on the moon? |
| 4109 |
/u/johnm4jc |
Why is glass so loud? |
| 4100 |
/u/crasyeyez |
Do creatures such as cuttlefish and octopuses get "tired" from using their camouflage? |
| 4092 |
/u/7418520963 |
Light bends around massive objects. Could there be something so massive that light orbited around it? |
| 4078 |
/u/sleepwalken |
If you farted hard enough in space, could you move yourself around? |
| 4066 |
/u/nomad1c |
If you have an organ transplant, will your body gradually replace the DNA in it with your own, or will the cells continue to regenerate with the same external DNA? |
| 4063 |
/u/rossatron688 |
Do human beings make noises/sounds that are either too low/high frequency for humans to hear? |
| 4045 |
/u/InVultusSolis |
So far SETI has not discovered any radio signals from alien civilizations. However, is there a "maximum range" for radio signals before they become indistinguishable from background noise? |
| 4041 |
/u/moistpandas |
I know of absolute zero at -273.15°C, but is there an absolute hot? |
| 4033 |
/u/ToucanbT |
Could you stand on a gas planet or would you "fall" to the center? |
| 4022 |
/u/malaria_protein |
AskScience AMA: We are scientists from the team that recently discovered a malaria protein with the ability to target many different types of cancer. Ask us anything! |
| 3995 |
/u/squizzlestix |
How does the cell on the tip of my nose know to perform all the functions of a cell on the tip of my nose? How does it know that it isn't a cell on the side of my nose (or my liver, brain, etc.) |
| 3955 |
/u/ArjaaAine |
Why hasn't evolution caused mammals to have many more females than males? |
| 3933 |
/u/lysergic_25 |
Is it possible to have a planet at just the right size to have a solid surface, with a molten core which keeps the temperature at the surface suitable for life with no sun? |
| 3917 |
/u/jdlc700 |
Would a person submerged in a tub of water, unable to drink, survive longer than a person out of water, also unable to drink? |
| 3903 |
/u/graaahh |
If we viewed a star "going supernova" in real time, would it look like a violent explosion, or does it take a long time? |
| 3892 |
/u/theresheblowshard |
Is there a bulge in earth's atmosphere constantly facing the moon? |
| 3888 |
/u/Punishtube |
Why are Nuclear reactors never built in Water or below water? |
| 3885 |
/u/RangeRedneck |
Why does putting salt water (saline) into our blood stream rehydrate us, but drinking salt water can harm us? |
| 3879 |
/u/CyberPlatypus |
How does a computer know to turn itself back on when you tell it to restart? |
| 3874 |
/u/wtricht |
If you drop your a phone or something else with a glass screen and the screen doesn't crack, does it have a higher chance of shattering the next time you drop it? |
| 3866 |
/u/xxshteviexx |
When I'm on an airplane and I look straight ahead during takeoff or landing, I feel like I can see that the plane is pointed up or down. Can I really, or does my brain just extrapolate based on other information to create this illusion? |
| 3862 |
/u/dongerduck |
If there was a body of water that was as deep as the Marianas Trench but perfectly clear and straight down, would you be able to see all the way to the bottom? |
| 3859 |
/u/Ray_Nay |
If the sun disappeared from one moment to another, would Earth orbit the point where the sun used to be for another ~8 minutes? |
| 3805 |
/u/KiwiMack |
How can I smell a piece of metal if it doesn't expulse any matter? |
| 3785 |
/u/Slender_Spelunkers |
AskScience AMA Series: We’re Hannah Morris and Becca Peixotto, two of six “slender spelunkers” who excavated 1,500 individual hominin bone fragments deep in a South African cave over the course of 21 days, Ask Us Anything! |
| 3784 |
/u/theskadudeguy |
Why isn't there an animal that could live for 1,000's of years? |
| 3760 |
/u/Acode90 |
How far underwater could you breath using a hose or pipe (at 1 atmosphere) before the pressure becomes too much for your lungs to handle? |
| 3741 |
/u/erroct |
If I had a 1 dollar coin, could I theoretically flatten it to the point where the coin would cover the entire Earth? |
| 3741 |
/u/CreativeArbok |
Since DNA is an acid, is there such thing as DNA salts? |
| 3738 |
/u/Snowodin |
Would drinking "heavy water" (Deuterium oxide) be harmful to humans? What would happen different compared to H20? |
| 3697 |
/u/annonomouse2 |
If someone with schizophrenia was hallucinating that someone was sat on a chair in front of them, and then looked at the chair through a video camera, would the person still appear to be there? |
| 3671 |
/u/quizzical |
The EU has banned many chemicals that are suspected of causing harm which are allowed in North America. Are there epidemiological studies finding differences in rates of disease related to this? |
| 3669 |
/u/NeokratosRed |
Why is it that many cultures use the decimal system but a pattern in the names starts emerging from the number 20 instead of 10? (E.g. Twenty-one, Twenty-two, but Eleven, Twelve instead of Ten-one, Ten-two)? |
| 3663 |
/u/Jakent10 |
Why does the Human body reject transplanted organs /tissue and proceed to destroy them but it doesn't kill parasites like worms ? |
| 3640 |
/u/iamannagram |
Apparently bedwetting (past age 12) is one of the most common traits shared by serial killers. Is there is a psychological reason behind this? |
| 3636 |
/u/pm-me-weird-stuff |
What would a cup full of viruses or bacteria look like? |
| 3619 |
/u/coppersocks |
What will it mean for science if NASA announces it has found running water on Mars? |
| 3615 |
/u/Schmitty422 |
I keep hearing about outbreaks of measles and whatnot due to people not vaccinating their children. Aren't the only ones at danger of catching a disease like measles the ones who do not get vaccinated? |
| 3611 |
/u/ClassySirMike |
If everyone was required to stay at home for 2 months with zero contact with other people could we wipe out the cold/flu forever? |
| 3597 |
/u/Dinomial |
Can you get hearing loss from exposure to loud noises outside our hearing range? |
| 3592 |
/u/Pupikal |
If I were traveling at near the speed of light (enough to significantly slow time), would I be able to "think" normally? Would I be able to tell that time is slowing down? |
| 3590 |
/u/Phaillip |
Do multiple wounds heal slower than just a single one? |
| 3550 |
/u/--Danger-- |
What does an IQ of 70 entail, cognitively, emotionally, etc.? |
| 3540 |
/u/Nowhere_Man_Forever |
Could life actually be supported by a constant thick mist and no rain? |
| 3540 |
/u/howaboutwetryagain |
The pupils in our eyes shrink when faced with bright light to protect our vision. Why can't our ears do something similar when faced with loud sounds? |
| 3539 |
/u/Saklor |
Why does Uranus look so smooth compared to other gas giants in our solar system? |
| 3535 |
/u/MrDowntempo |
Would it be possible with modern technology to produce a sword that would handily deal with medieval swords and armor? |
| 3525 |
/u/darthvalium |
At what rate, if any, does the earth produce fossil fuels? |
| 3518 |
/u/_MostlyHarmless |
Do astronauts on extended missions ever develop illnesses/head colds while on the job? |
| 3502 |
/u/koleslaw |
If a solid sheet of a metal were only an atom thick, would we be able to see through it? |
| 3500 |
/u/meanwhile_in_SC |
If the Universe were shrunk to something akin to the size of Earth, what would the scale for stars, planets, etc. be? |
| 3490 |
/u/anonradditor |
If we can't hear transmissions from somewhere like Kepler 452b, then what is the point of SETI? |
| 3490 |
/u/Vinny_Lynch |
AskScience AMA: I'm Vinny Lynch, assistant prof. of human genetics at UChicago. I led one of two research groups that independently found why elephants don’t get cancer as frequently as we thought they should (Spoiler: 20 copies of the p53 tumor suppressor gene). AMA! |
| 3489 |
/u/zaphod15 |
Are farts stored as compressed gas? What's the range of internal pressure? |
| 3486 |
/u/purplepricklypear |
I work with identical 4 year old twins - one has severe autism, the other is normally developing. How does this fit into the whole nature/ nurture debate? |
| 3485 |
/u/SlurpsMcgee |
If we could theoretically break the speed of light, would we create a 'light boom' just as we have sonic booms with sound? |
| 3480 |
/u/AskScienceModerator |
Happy Pi Day! Come celebrate with us |
| 3467 |
/u/janez_blond |
Is it theoretically possible for a nuclear reaction to happen randomly on earth (i.e. in nature)? |
| 3461 |
/u/thesocialist1 |
Has there been a disease that was beneficial to humans? |
| 3456 |
/u/MediocrePlayer |
Why is it that the moons gravity is able to direct masses of water in different directions but yet we, ourselves cannot physically feel the affect of the moon's gravity? |
| 3455 |
/u/Chris_Wells_95 |
Does a rainbow extend into the invisible part of the spectrum? |
| 3449 |
/u/EquationTAKEN |
How does exposure to radioactivity affect the human body? In biological terms, what's the deadly process? |
| 3446 |
/u/Sheamau5 |
When we have to fight ourselves awake, what are we fighting exactly? |
| 3440 |
/u/a_great_thinker |
Why can't I weigh the earth by putting a scale upside-down? |
| 3427 |
/u/TheBananaKing |
Iron smelting requires extremely high temperatures for an extended period before you get any results; how was it discovered? |
| 3426 |
/u/solarish |
Nuclear fusion reactors use supermagnets to suspend plasma and prevent it from damaging the containment structure. However, fusion also produces neutrons as part of the reaction, which have a net charge of 0. What steps have scientists taken to mitigate the damage from these high-energy neutrons? |
| 3422 |
/u/GiftsAwait |
How do services like Google Now, Siri and Cortana, recognize the words a Person is saying? |
| 3416 |
/u/Alphaetus_Prime |
If I pick up my coffee right after I stir it, so that it's still swirling around, will there be a gyroscopic effect making me less likely to spill it? |
| 3414 |
/u/AlphaTyrant |
Does lightning strike the ocean? If so, does it electrocute nearby fish? |
| 3409 |
/u/LostInTheAtlantic |
If you fingerprint a person as an infant, and again as an adult, will their fingerprints be the same? |
| 3402 |
/u/Prufrock451 |
Is there any evidence that cetacean species communicate to each other (like grey whales calling and blue whales avoiding an area, etc)? Or are all of these species shouting past each other on different wavelengths? |
| 3394 |
/u/redrainyskies |
Is the strength of muscles proportional to their diameter, cross-sectional area, or volume? Or is it not linear? |
| 3373 |
/u/PrettyUnoriginal |
Why is the year 2100 not a leap year? |
| 3371 |
/u/mcherm |
XKCD's "Fundamental Forces" isn't funny, it's sad. Can you do better? |
| 3370 |
/u/FalconAF |
If photons have no mass, how can a laser beam bore a hole through something? Wouldn't the equation E=MC2 resolve to 0=0? |
| 3366 |
/u/kevin4789 |
If you had a million mirrors placed in such a way that each would reflect off the next one, and you stand in front of one and move, would there be any lag between your movement and what appears on the final mirror? |
| 3360 |
/u/romantep |
Came across this "fact" while browsing the net. I call bullshit. Can science confirm? |
| 3356 |
/u/Schmackelnuts |
What is the air inside a bell pepper composed of? |
| 3352 |
/u/sideplank |
If we can produce zero-calorie drinks easily, why don't we have zero-calorie food? |
| 3344 |
/u/paul092834 |
Why does this ping-pong pong ball get sucked in, when I blow out through this toy tube? |
| 3342 |
/u/epanchin |
Given their long lifespans, do turtles or bowhead whales get dementia? |
| 3341 |
/u/leeboof |
The fastest spinning neutron star spins at 716 times a second. How much of the immense gravity would be counteracted by the centrifugal force? How many times earths gravity would an object on the surface experience? |
| 3330 |
/u/mattyc1163 |
What causes this ring of fire from a Desert Eagle? Link in description (x-post r/woahdude) |
| 3324 |
/u/heartk |
When an adult learns a new language, does their brain store the words in the same way as when they learn new words in their native language (i.e. expanding their vocabulary)? |
| 3323 |
/u/epicluca |
If Voyager had a camera that could zoom right into Earth, what year would it be? |
| 3306 |
/u/kevin4789 |
Why do dogs smell bad when wet? |
| 3304 |
/u/ichegoya |
Do black holes ever die? |
| 3297 |
/u/pudding_world |
It's my understanding that when we try to touch something, say a table, electrostatic repulsion keeps our hand-atoms from ever actually touching the table-atoms. What, if anything, would happen if the nuclei in our hand-atoms actually touched the nuclei in the table-atoms? |
| 3281 |
/u/Dr_Prof_Doom |
As photosynthesis requires light, why aren't plants black to absorb the full spectrum of light, instead of green which doesn't? |
| 3275 |
/u/Foofymonster |
Is there a way to harness gravity for energy? If so, why do we not discuss it when talking about green energy? |
| 3272 |
/u/Gasdark |
So human beings have tested 2,153 nuclear bombs in the last 75 years - but I was under the impression that that many bombs set off at once would basically end the species - what has been the long term effects of all that testing on the world at large? |
| 3266 |
/u/pm-me-with-your-tits |
The temperature in space is about 3K, however there are almost no atoms in space. My understanding is that heat is essentially atomic vibrations. If there are almost no atoms, how can there be residual heat? |
| 3254 |
/u/DatDane |
Would it be possible for two people to grow together if they both were to cut off a hand/finger and then hold the wounds together? |
| 3253 |
/u/EntropismAtWork |
What is the lowest temperature flame can be? |
| 3251 |
/u/Grill_dont_fry |
Are all languages equally as 'effective'? |
| 3248 |
/u/Veshter |
Is it possible to feel "high" without using drugs? |
| 3245 |
/u/FerralWombat |
When my earphones are plugged into my laptop (and nothing is playing) I hear a hum. If I touch any metal surface on the laptop, the hum stops. What is causing both effects? |
| 3230 |
/u/Mage98 |
How deep into the Earth could humans drill with modern technology? |
| 3222 |
/u/rondeline |
If modern man came into existence 200k years ago, but modern day societies began about 10k years ago with the discoveries of agriculture and livestock, what the hell where they doing the other 190k years?? |
| 3222 |
/u/luckyhenry |
Does any animal have a life span so short that it never sleeps? |
| 3218 |
/u/manbiteswolf |
Does the human eye have a quantifiable image resolution? |
| 3217 |
/u/greatsawyer |
Why are deep sea fishs "uglier" and less symmetrical then their higher sea counterparts? |
| 3217 |
/u/jpvl1 |
If I wrap a cold object in several blankets, will the object stay cold longer? |
| 3210 |
/u/SailingB0aty |
Why is the speed of light, the speed it is? |
| 3181 |
/u/Pinkie056 |
Does Adrenaline really reduce reaction time? |
| 3165 |
/u/Dame_Juden_Dench |
Can depression and other mood disorders decrease mental ability? Can it make you dumber? |
| 3162 |
/u/eplusl |
With advances in many fields of Medicine including the transplant of synthetic hearts and 3d printing of various body parts making cheap prosthetics possible, why haven't we seen significant advances in prosthetic cartilage for damaged joints and herniated disks? |
| 3142 |
/u/EyeofEnder |
Are rings exclusive to gas planets? If yes, why? |
| 3132 |
/u/jakdax99rb |
If light emits a significantly minute force, how much light would it take to crush a human? |
| 3123 |
/u/roborovsky |
If I ate 10,000 calories in one go, would my body be able to digest it all? Or would some of those calories 'pass through' due to my digestive system being overwhelmed? |
| 3093 |
/u/SpacetimeOdyssey |
When dinosaur bones were initially discovered how did they put together what is now the shape of different dinosaur species? |
| 3090 |
/u/LoLlYdE |
Why do physics break down above the Planck Temperature? |
| 3085 |
/u/Genchybaby |
How fast would you have to travel around the world to be constantly at the same time? |
| 3085 |
/u/dantheman757 |
Why was Plutonium used instead of Uranium in the "Fat Man" atomic bomb? |
| 3074 |
/u/moderately_extreme |
If a feather was in a decaying orbit around the Earth, would it burn up during re-entry? |
| 3072 |
/u/Buttmolested |
If the gravity of the moon is strong enough to create tidal waves, why doesn't it lift up things like tree leaves or small animals? |
| 3071 |
/u/Nachington |
Do chickens have a limited supply of eggs throughout their life, or can they produce eggs as long as they have a functioning reproductive systema? |
| 3057 |
/u/idontcareforkarma |
What would happen if the moon was covered with a highly reflective material (such as tin foil)? |
| 3042 |
/u/tika_b |
If a space ship were to have a cloth banner, a flag, on the outside, while in motion, would it "flap in the wind" or remain perfectly straight? |
| 3034 |
/u/th4t5f1n3 |
If you roll a die twice under the exact same circumstances, and I mean every possible thing is the same, would it produce the same result? |
| 3023 |
/u/Samppis |
Would people with dyslexia have problems reading Braille? |
| 3019 |
/u/thefourthchipmunk |
In light of the new high-res photo of Andromeda, is there any chance that we will be revising our estimate of the total number of stars in the galaxy? (currently 1 trillion) |
| 3015 |
/u/rickatnight11 |
Why is forest height on mountain ranges so uniform? |
| 3009 |
/u/karch10k |
When a part of your body "falls asleep", can it cause any lasting damage? |
| 3002 |
/u/imanatheistsowhat |
Would it be any dangerous at all to split even one atom? |
| 2804 |
/u/Six_of_Diamonds |
Could we split a photon? |
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