Is it possible for animals to be allergic to humans?

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• Is it possible for animals to be allergic to humans?
• If a body rejects an organ transplant, can that organ be used for someone else, or is it no longer usable?
• What do tiny spiders eat?
• How exactly does nothing (or almost nothing) react with glassware?
• How do statins work to reduce blood cholesterol?
• If you were standing on the moon's surface, would you be able to see the horizon curve?
• How long does it take sedimentary rock to form?
• If you wanted to push an orbital object towards it’s gravitational well, *as fast as possible*, (say, like, using rockets to push Europa into Jupiter...) would you slow the object’s orbital speed (x)? Or push the object directly towards the gravitational center, at equal force (y)?
• Why do hot things typically turn red?
• What is the Adam's apple and what is its function?
• What is happening in our lips/mouth that causes spicy foods we eat to feel hot or "spicy"?
• Can a micro burst rains occur at high elevations? IE high mountain territory ~5000 feet
• Does atmospheric pressure change over geologic time, or has the barometer always been about 1 atmosphere?
• If someone is having a nightmare will his/her heart rate increase or be the same?
• Could Earth’s Climate Become Like Venus’?
• How Does the Extra Food Mass Exit the Body of an Exerciser?
• How do websites like google give you search results?
• Would a Pangean year be longer than 365 days?
• Why are microwaves effective at heating food but not plates?
• What makes vegetables edible when compared to simple grass and bushes?

Is it possible for animals to be allergic to humans? Posted: 19 Mar 2019 03:08 AM PDT Humans can be allergic to dogs, cats, etc. Is it possible for animals to be allergic to us? submitted by /u/hsym [link] [comments]

If a body rejects an organ transplant, can that organ be used for someone else, or is it no longer usable? Posted: 18 Mar 2019 07:54 AM PDT If my body rejects a kidney, can it be used for the next applicable person on this list, or is it toast? submitted by /u/Theonlykd [link] [comments]

What do tiny spiders eat? Posted: 18 Mar 2019 05:13 PM PDT I've got a tiny spider, not more than 1-2cm across, living in the frame of my shower door. My wife hates cobwebs, so removes its newly spun web every few days, but the little fella always spins another. I can never see anything on the web, and I doubt it could hold a fly, even if one flew into it. But Incy is still there, spinning away. So what is it eating and how is it catching it, if not on the web? submitted by /u/gjs78 [link] [comments]

How exactly does nothing (or almost nothing) react with glassware? Posted: 18 Mar 2019 08:42 PM PDT I've been watching CodysLab and HTME on YouTube and seeing them put all those incredible reactive and dangerous into glass started wondering why/how it works? Are there other things that are as resistive to chemicals as glass is? submitted by /u/torohangupta [link] [comments]

How do statins work to reduce blood cholesterol? Posted: 19 Mar 2019 03:14 AM PDT submitted by /u/mr_lau02 [link] [comments]

If you were standing on the moon's surface, would you be able to see the horizon curve? Posted: 18 Mar 2019 08:52 AM PDT If not, how small would a planet/moon have to be to be able to notice a curve of the horizon? submitted by /u/adarco23 [link] [comments]

How long does it take sedimentary rock to form? Posted: 19 Mar 2019 03:19 AM PDT For example, let say a depression was flooded with silt, clay, sand and the like. After this flood it remained arid and dry. How long would it take to turn into rock? submitted by /u/dredawg1 [link] [comments]

If you wanted to push an orbital object towards it’s gravitational well, *as fast as possible*, (say, like, using rockets to push Europa into Jupiter...) would you slow the object’s orbital speed (x)? Or push the object directly towards the gravitational center, at equal force (y)? Posted: 18 Mar 2019 05:50 PM PDT Would that depend only upon relative speed vs mass? Or is there a line between l speed/mass v constant(0 Speed)/mass to determine the best direction? Never really got into this class in college. But I wanna know now.. submitted by /u/Wickedpissahbub [link] [comments]

Why do hot things typically turn red? Posted: 18 Mar 2019 02:09 PM PDT submitted by /u/flashbackman [link] [comments]

What is the Adam's apple and what is its function? Posted: 18 Mar 2019 11:47 AM PDT submitted by /u/david1230561 [link] [comments]

What is happening in our lips/mouth that causes spicy foods we eat to feel hot or "spicy"? Posted: 18 Mar 2019 03:06 PM PDT submitted by /u/Marlondlemus98 [link] [comments]

Can a micro burst rains occur at high elevations? IE high mountain territory ~5000 feet Posted: 19 Mar 2019 03:01 AM PDT I know they happen in the desert sometimes, could they happen in a place like Denver or Flagstaff?. submitted by /u/branflakes4547 [link] [comments]

Does atmospheric pressure change over geologic time, or has the barometer always been about 1 atmosphere? Posted: 18 Mar 2019 06:05 PM PDT Does atmospheric pressure change over geologic time, or has it always been about 1 atm? We have so much evidence for wildly different climates, sea levels, gas concentrations, to the point where humans couldn't have survived at points in Earth's history. But is there a geologic barometer we can check? submitted by /u/Simplethrowaway4828 [link] [comments]

If someone is having a nightmare will his/her heart rate increase or be the same? Posted: 18 Mar 2019 08:16 AM PDT submitted by /u/1us1 [link] [comments]

Could Earth’s Climate Become Like Venus’? Posted: 18 Mar 2019 12:47 PM PDT There's a lot of talk about Climate Change here on Earth and often I hear that the worst case scenario is for Earth to become like Venus. 471C and runaway Climate Change. 1) But, is it even physically possible for Earth to become like Venus with our carbon sinks in the Oceans/plate tectonics, magnetosphere, relatively fast rotation on our axis? 2) If 1 is true, how likely is it that climate change here on Earth could push us to runaway climate change where Earth becomes like Venus? -None of this is to dampen the severity of the rate of climate change. -Please try to link academic sources if you can submitted by /u/urunclejack [link] [comments]

How Does the Extra Food Mass Exit the Body of an Exerciser? Posted: 18 Mar 2019 03:59 PM PDT Two people consume the exact same diet. One exercises and does not gain weight. The other sits and does gain weight. Which bodily excretion accounts for the extra loss of mass from the active person? Sweat, exhalation, urine, feces, or other? submitted by /u/wingalls13 [link] [comments]

How do websites like google give you search results? Posted: 18 Mar 2019 07:44 PM PDT Do they scan the whole internet? submitted by /u/hzeme1 [link] [comments]

Would a Pangean year be longer than 365 days? Posted: 18 Mar 2019 06:22 PM PDT Or is the distance from the sun the determining factor of a day? I was going to ask this on r/nostupidquestions , but I couldn't find anything on it during a google search, so I thought you all may know. submitted by /u/Sentient_Sloth2 [link] [comments]

Why are microwaves effective at heating food but not plates? Posted: 18 Mar 2019 09:13 AM PDT submitted by /u/Rniaroflmao [link] [comments]

What makes vegetables edible when compared to simple grass and bushes? Posted: 18 Mar 2019 06:52 AM PDT submitted by /u/Leeiteee [link] [comments]

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AskScience AMA Series: I am Fabien Cousteau, an Aquanaut, Oceanographic Explorer, Environmental Advocate, Documentary Filmmaker, Founder of the Fabien Cousteau Ocean Learning Center, and Grandson of Jacques Cousteau. Ask me anything!

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• AskScience AMA Series: I am Fabien Cousteau, an Aquanaut, Oceanographic Explorer, Environmental Advocate, Documentary Filmmaker, Founder of the Fabien Cousteau Ocean Learning Center, and Grandson of Jacques Cousteau. Ask me anything!
• Why does rain have a smell before it starts to rain?
• During pregnancy, how does the mother's immune system know to avoid attacking the baby?
• What are the differences between Quantum Mechanics and Classical Mechanics, and how and why do they manifest?
• Are we the only animal to predominantly use one arm/hand?
• When I open my blinds in the morning, is it "too bright" for my eyes, the optical nerve, or the part of my brain interpreting the data? Where does the pain of bright light come from?
• If a person with light skin got a skin graft from a person with dark skin, would the skin color eventually change?
• How far away are we really from quantum computing?
• Do solid planets like Earth have a size/mass limit?
• How do computers decide random numbers?
• Does a woman truly share cells with her baby during pregnancy?
• Dying lake Chicago River green?
• Do fish drink water? Do they pee? How do they hydrate?
• Is it possible to create a device similar to an electronic device that uses photons instead of electrons?
• Do playing mind or strategy games like chess improve your IQ or brain performance?
• Why do we get white hair as we age?
• Does an object traveling at twice the speed of sound great a boom louder than an object traveling just slightly faster than the speed of sound?
• Do spider's spinnerets use quantum mechanics?
• Are Band-Pass Light Reflectors a Thing?
• Do minor head injuries damage the brain?
• What actually goes to sleep when we sleep?
• How is a vaccine made?
• Does hair grow at a constant rate?

AskScience AMA Series: I am Fabien Cousteau, an Aquanaut, Oceanographic Explorer, Environmental Advocate, Documentary Filmmaker, Founder of the Fabien Cousteau Ocean Learning Center, and Grandson of Jacques Cousteau. Ask me anything! Posted: 15 Mar 2019 04:00 AM PDT As the first grandson of Jacques-Yves Cousteau, I spent my early years aboard my grandfather's famous ships, Calypso and Alcyone; learning how to scuba dive on my fourth birthday. I am known for my study of sharks and from 2000-2002, I was an Explorer-at-Large for National Geographic and collaborated on a TV special aimed at changing public conceptions about sharks called, "Attack of the Mystery Shark". Then in 2003-2006, I produced the documentary, "Mind of a Demon", that aired on CBS. With the help of a large crew, I created a 14-foot, 1,200-pound, lifelike shark submarine called "Troy" that allowed me to immerse myself inside the shark world, providing viewers with a rare view of the mysterious and often misunderstood creatures. This also led to the inspiration behind my new book, GREAT WHITE SHARK ADVENTURE. For the next four years (2006-2010), I was part of a multi-hour series for PBS called, "Ocean Adventures" with my father, Jean-Michel Cousteau, and sister, Celine. This was inspired by my grandfather's famous 1978 PBS series, "The Cousteau Odyssey". In the following years, and as a member of multiple cause-driven and charitable boards I have been working with local communities and children worldwide to help restore local water ecosystems. In June 2014, my team of aquanauts embarked on Mission 31, the longest science expedition to take place at Aquarius, the world's only underwater marine laboratory located in Florida. Mission 31 broke new ground in ocean exploration and honored the 50th anniversary of his grandfather's original underwater living experiment (Conshelf Two) by going deeper, longer and further, while broadcasting each moment live on multiple channels exposing the world to the adventure, drama and mystique of what lies beneath. Early in 2016 I founded the Fabien Cousteau Ocean Learning ("OLC") to fulfill my dream of creating a vehicle to make a positive change in the world. Last week, the first book in my new graphic novel series, GREAT WHITE SHARK ADVENTURE, came out from the Margaret K. McElderry Books, an imprint of Simon and Schuster Children's Publishing. You can learn more about me at my website, on Twitter, or on Facebook. I will be on about 2pm (ET, 18 UT), ask me anything! submitted by /u/AskScienceModerator [link] [comments]

Why does rain have a smell before it starts to rain? Posted: 17 Mar 2019 09:47 PM PDT submitted by /u/Potato_Main [link] [comments]

During pregnancy, how does the mother's immune system know to avoid attacking the baby? Posted: 17 Mar 2019 08:58 AM PDT submitted by /u/vsw211 [link] [comments]

What are the differences between Quantum Mechanics and Classical Mechanics, and how and why do they manifest? Posted: 18 Mar 2019 04:13 AM PDT The equation x̂(t) = x̂(0) + p̂(0) t/m is arrived at after applying the commutator value [x̂, p̂] = iħ to the Heisenberg Equation of Motion for position of a free mass which says dx̂/dt = i[Ĥ,x̂]. In classical mechanics, x and p can be determined simultaneously with infinite precision, that is to say, the Uncertainty relation, the Quantum Commutator is at the heart of which, does not exist in CM, and yet the classical analogue of the Quantum Commutator, the Poisson Bracket {x,p} = 1, leads to the same equation as above for the classical position of a free mass after using a classical Hamiltonian. So why do these apparent similarities lead to different (for ex., the abovementioned uncertainty principles, which I know arises due to Cauchy-Schwarz inequality restrictions on the Hilbert vector space, but what prevents this in CM vector spaces?) as well as similar (equation of motion) results? What actually makes CM different than QM? And what are some more such examples where CM and QM differ in results? submitted by /u/lAPPYc [link] [comments]

Are we the only animal to predominantly use one arm/hand? Posted: 18 Mar 2019 06:18 AM PDT submitted by /u/ColonConoisseur [link] [comments]

When I open my blinds in the morning, is it "too bright" for my eyes, the optical nerve, or the part of my brain interpreting the data? Where does the pain of bright light come from? Posted: 17 Mar 2019 08:05 AM PDT submitted by /u/betterben [link] [comments]

If a person with light skin got a skin graft from a person with dark skin, would the skin color eventually change? Posted: 17 Mar 2019 12:48 PM PDT submitted by /u/Unidnt [link] [comments]

How far away are we really from quantum computing? Posted: 17 Mar 2019 09:41 PM PDT I feel like I keep seeing sensationalist articles on the implications, but it appears that there are still problems regarding scalability and other concepts I can't fully grasp. submitted by /u/Pasdesoucie [link] [comments]

Do solid planets like Earth have a size/mass limit? Posted: 17 Mar 2019 10:06 PM PDT After seeing a post showing the immensity of some stars, and even seeing how small we are compared to Jupiter I got to wondering; is there a limit to how big a hard surfaced object can be? And if so, what are the limiting factors? submitted by /u/typhereous [link] [comments]

How do computers decide random numbers? Posted: 17 Mar 2019 08:45 PM PDT submitted by /u/geb7370 [link] [comments]

Does a woman truly share cells with her baby during pregnancy? Posted: 17 Mar 2019 09:41 PM PDT I was told that while pregnant my growing son's cells were replenishing or providing healing processes to any tissue and organs of mine that had been previously scarred or injured during my lifetime. I honestly don't feel any different, but apparently it's supposed to happen on a tiny cellular level. Is there any scientific evidence of this? submitted by /u/guyette_fox [link] [comments]

Dying lake Chicago River green? Posted: 18 Mar 2019 12:49 AM PDT Just wondering, what repercussions are there for dying the Chicago River green? It just doesn't seem like a very environmentally conscious decision submitted by /u/McGoodMate [link] [comments]

Do fish drink water? Do they pee? How do they hydrate? Posted: 17 Mar 2019 07:12 PM PDT Answering the deep questions... submitted by /u/tanafras [link] [comments]

Is it possible to create a device similar to an electronic device that uses photons instead of electrons? Posted: 17 Mar 2019 10:43 AM PDT submitted by /u/Batu-han [link] [comments]

Do playing mind or strategy games like chess improve your IQ or brain performance? Posted: 17 Mar 2019 02:14 PM PDT submitted by /u/WebWarrior420 [link] [comments]

Why do we get white hair as we age? Posted: 17 Mar 2019 11:44 AM PDT submitted by /u/thebubs1024 [link] [comments]

Does an object traveling at twice the speed of sound great a boom louder than an object traveling just slightly faster than the speed of sound? Posted: 17 Mar 2019 11:12 AM PDT Create* Sorry. submitted by /u/HasSomeSelfEsteem [link] [comments]

Do spider's spinnerets use quantum mechanics? Posted: 17 Mar 2019 10:02 PM PDT I was watching yet another story on a science show about the "spider goats" at Utah State University and it got me thinking about the amount of energy and fuel it takes for the facility to produce the silk. Spiders do this at room temperature and we haven't got a complete understanding of the process. Given the recent findings of quantum mechanics being utilised in photosynthesis, could a quantum process be the fundamental mechanic that allows for the generation of the silk protein to culminate into an effective biological process? submitted by /u/SuperDeadlyNinjaBees [link] [comments]

Are Band-Pass Light Reflectors a Thing? Posted: 17 Mar 2019 07:46 PM PDT I was recently thinking about a Mythbusters episode where they tested various methods of hiding a car's license plate from a camera. I realized that any method of attempting to block the plate within the visible spectrum are in vain as these would be plainly visible to the human eye, but I remembered reading that a cell phone (and I assume other cameras) could pick up the infrared light from a TV Remote due to being poorly filtered. My idea revolves around using an infrared LED array to shine on the license plate, but I'm worried that the black lettering might absorb light in the IR spectrum. I initially thought, ironically enough, that an IR filter might work, but upon research most sources seem to say that light filters simply absorb rather than reflect light. Addendum: I have no intention of using such a device without first researching its legality as I suspect it to be illegal. I might, however, do some testing as IR LEDs seem to be fairly cheap. For science, of course. submitted by /u/Throwmeaway5423 [link] [comments]

Do minor head injuries damage the brain? Posted: 17 Mar 2019 01:07 PM PDT I'm talking about the kind of thing where you hit your head and it hurts, but only for a few moments. Obviously there's a bit of damage being done to your scalp/skull, but is the brain being hurt at all? I remember hearing that a concussion is caused when the brain hits the inside of the skull because of a sudden change of motion in the whole head. So like, does a weak punch hurt the brain, or just the outside of my head? submitted by /u/Bronze_Dragon [link] [comments]

What actually goes to sleep when we sleep? Posted: 17 Mar 2019 10:47 AM PDT Is it similar to when a computer is put to sleep? Since everything is still working, lungs, heart, brain, and such, as we sleep. Does anything turn off or it all just slows down enough that we won't die while sleeping. submitted by /u/Mongo_Fifty [link] [comments]

How is a vaccine made? Posted: 17 Mar 2019 01:01 PM PDT In light of the return of the measles, I got curious about how a vaccine is ACTUALLY physically made. I know that a vaccine contains a weaker version of the disease for the immune system to develop an immunity to it, but I also know there are other ingredients to it (I assume to weaken the virus?). It made me curious how it's put together? Is it boiled in a beaker? Or frozen? Or both? Do you store it at room temperature, or in a fridge? I know these are probably some silly questions, but I was just wondering about it. PS: I am pro-vaccine all the way, I'm not asking to collect evidence of "the evil vaccines." Was just curious. submitted by /u/OliveTheNerd [link] [comments]

Does hair grow at a constant rate? Posted: 17 Mar 2019 06:14 PM PDT I was wondering if hair grew at a constant rate. For instance, if I grew 1 inch of hair in a month after a haircut, would I expect 2 inches after the end of two months? If not, what are factors that affect hair growth rate? submitted by /u/Dog_behind_a_screen [link] [comments]

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Why are marine mammals able to keep their eyes open under water without the salt burning their eyes?

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• Why are marine mammals able to keep their eyes open under water without the salt burning their eyes?
• When you feel "full" or "satisfied" after a meal, is this due to the quantity of food eaten or the energy/nutritional value the meal gave?
• If the strong nuclear force only acts at an extremely close range, what's preventing the electromagnetic force from repelling everything away from us?
• Are genes from Mom/Dad just a coin flip at every "zip" of the DNA sequence? How far away can we deviate from 50/50?
• Question from my daughters; If I were to travel back in time could I survive in the same atmosphere as the dinosaurs and find nutritious foods that wouldn't kill me (could I consume a dinosaur)?
• Can spiders use the web of other spider species?
• How long can a human being go without eating?
• How tall could a wave potentially be? Given the correct circumstances, how tall could a wave become or is their a plateau?
• If a satellite is in a polar low earth orbit is it still protected from radiation by the van Allen belts?
• How detrimental to today's technological society if the poles flipped again?
• Do electrons in an atom have velocity?
• Do artificial light sources not intended for growing plants effect the growth or bloom cycle of plants (street lights, table lamps, etc)?
• I learned that dolphins can see well both under water as well as above the water. How does this work optically? With human eyes we’d need either swimming goggles or eyeglasses.
• During blood transfusion, does all of the blood get “replaced”. If yes, what happens if it doesn’t?
• Do horses really absolutely hate the smell of camels?
• How can emotional stress after receiving bad news cause a heart attack?
• How do elevators make emergency calls?
• How do we detect quasars, and how are they differentiated from stars?
• Do the solar panels move continuously to track the sun as the ISS moves? Or, do they set the Solar panel at an optimal position for the movement as they pass through the arc of travel? Or, do they adjust them in steps every few minutes?
• Shouldn't there be Quark stars?
• Were the sun and earth formed from the same star?
• How is ethanol fuel so much cheaper than grain alcohol?

Why are marine mammals able to keep their eyes open under water without the salt burning their eyes? Posted: 16 Mar 2019 01:52 PM PDT ITT: people saying "my eyes don't burn in sea water" submitted by /u/magcargoman [link] [comments]

When you feel "full" or "satisfied" after a meal, is this due to the quantity of food eaten or the energy/nutritional value the meal gave? Posted: 17 Mar 2019 06:02 AM PDT For example can I eat a few energy bars and feel as satisfied as I would be with a larger meal with lower nutritional value? submitted by /u/Big_Sem [link] [comments]

If the strong nuclear force only acts at an extremely close range, what's preventing the electromagnetic force from repelling everything away from us? Posted: 17 Mar 2019 03:30 AM PDT Might not understand enough on this but what I know so far, is that until you manage to move a particle fast enough to breach the energy barrier, the electro-magnetic force will be greater than the strong nuclear force. If this is the case, than how aren't most things (if not everything) being repelled from myself and like fly away or something? submitted by /u/BlobOvFat [link] [comments]

Are genes from Mom/Dad just a coin flip at every "zip" of the DNA sequence? How far away can we deviate from 50/50? Posted: 17 Mar 2019 04:12 AM PDT People often say we are "50% of Mom, 50% of Dad", wouldn't we actually be some amount above/below, like maybe I'm 45/55 and my sister would be 57/43, my brother maybe 49/51, etc? I assume there is some point like 30/70 which cannot be achieved, do we know of such a point existing (are we all a minimum of 40% one parent, or 35%, etc)? submitted by /u/JOHANSENATOR [link] [comments]

Question from my daughters; If I were to travel back in time could I survive in the same atmosphere as the dinosaurs and find nutritious foods that wouldn't kill me (could I consume a dinosaur)? Posted: 16 Mar 2019 08:38 PM PDT I'm assuming that the air may be a bit different in oxygen to nitrogen levels. And when I was asked if we could find food...I didn't have a good answer. submitted by /u/High_PlainsDrifter [link] [comments]

Can spiders use the web of other spider species? Posted: 17 Mar 2019 06:02 AM PDT submitted by /u/Blowlara [link] [comments]

How long can a human being go without eating? Posted: 17 Mar 2019 04:06 AM PDT submitted by /u/Silasmisel123 [link] [comments]

How tall could a wave potentially be? Given the correct circumstances, how tall could a wave become or is their a plateau? Posted: 16 Mar 2019 04:05 PM PDT submitted by /u/Pifflebushhh [link] [comments]

If a satellite is in a polar low earth orbit is it still protected from radiation by the van Allen belts? Posted: 16 Mar 2019 04:51 PM PDT submitted by /u/justshootinblanks [link] [comments]

How detrimental to today's technological society if the poles flipped again? Posted: 16 Mar 2019 05:15 PM PDT submitted by /u/ignanima [link] [comments]

Do electrons in an atom have velocity? Posted: 16 Mar 2019 04:33 PM PDT From what I've read online about this subject, it's clear that electron in its ground state doesn't really move inside an atom in a classical sense, but rather oscillates as a standing wave. However, I've also seen calculations that measure the speed of electron to be approximately 1/137 times the speed of light or 2200 km/s for Hydrogen atom (Z/137 for other elements, where Z is atomic number). I find these two notions to be contradictory and fail to understand what does the derived speed really pertain to. submitted by /u/Marooned-Mind [link] [comments]

Do artificial light sources not intended for growing plants effect the growth or bloom cycle of plants (street lights, table lamps, etc)? Posted: 16 Mar 2019 02:57 PM PDT Was wondering because you always see plants that seem to be eternally in some kind of light, such as street lights, light up signs, or even headlights. Do these light sources have any effect on the growth of plants, which rely on the cycle of the sun to determine their growth and bloom cycle? submitted by /u/itsLinks [link] [comments]

I learned that dolphins can see well both under water as well as above the water. How does this work optically? With human eyes we’d need either swimming goggles or eyeglasses. Posted: 16 Mar 2019 08:51 PM PDT submitted by /u/dimacq [link] [comments]

During blood transfusion, does all of the blood get “replaced”. If yes, what happens if it doesn’t? Posted: 16 Mar 2019 04:50 PM PDT submitted by /u/vroomvroomonthebroom [link] [comments]

Do horses really absolutely hate the smell of camels? Posted: 16 Mar 2019 09:44 AM PDT Herodotus reports (I,80) that Cyrus used camel riders to destroy the Lydian empire because horses hated their smell and the Lydian knights were forced to dismount. Can we trust him on that one? submitted by /u/tanktango [link] [comments]

How can emotional stress after receiving bad news cause a heart attack? Posted: 16 Mar 2019 03:22 PM PDT submitted by /u/Aifos97 [link] [comments]

How do elevators make emergency calls? Posted: 16 Mar 2019 02:07 PM PDT Every elevator has an emergency button that connects you to someone to talk to. How is the connection enabled? Are they connected to the telephone line of a building? Do they have an integrated SIM card? Who pays for the connection? Who is responsible to maintain a working connection? submitted by /u/BennettDams [link] [comments]

How do we detect quasars, and how are they differentiated from stars? Posted: 16 Mar 2019 04:29 PM PDT submitted by /u/brain_conspiracy [link] [comments]

Do the solar panels move continuously to track the sun as the ISS moves? Or, do they set the Solar panel at an optimal position for the movement as they pass through the arc of travel? Or, do they adjust them in steps every few minutes? Posted: 16 Mar 2019 11:21 AM PDT submitted by /u/Savagelake2 [link] [comments]

Shouldn't there be Quark stars? Posted: 16 Mar 2019 02:08 PM PDT Since the implosion of the massive stars generally moves down the scale of atomic and subatomic particles, shouldn't there be Quark stars somewhere after the stage of neutron stars? Since we know a little bit about Quarks could we calculate what such a star might be, how it would look, some of the possible effects it would have on its surroundings? And could we theoretically predict what kind of gravity pressures Quark stars may withstand? Or even what kind of gravity fields it could create? Seems a bit strange that stars go Supernovae then into neutron stars - and then straight into black holes. Jumping over the hypothetical quark star stage. Did anyone explore this possibility or is the answer - we basically dont know? submitted by /u/SurfaceReflection [link] [comments]

Were the sun and earth formed from the same star? Posted: 16 Mar 2019 08:19 PM PDT submitted by /u/vivioo9 [link] [comments]

How is ethanol fuel so much cheaper than grain alcohol? Posted: 16 Mar 2019 11:52 AM PDT With E85 at $2/gal, and E15 at $2.33/gal, the pure Ethanol is about $1.90/gal for pure (meaning no water) Ethanol. Grain alcohol with 95% purity (5% water) is $18.67 per liter from shopping online. Even assuming it was pure ethanol (again meaning no water) that would be $87.06/gal. And with my understanding of distillation, getting anything above 96% ethanol:water requires additional processing due to the azeotrope (which I'm guessing is why grain alcohol stops at 190 proof). How is grain alcohol over 40x more expensive than ethanol fuel? I understand there is filtering for taste, individual bottling, human consumption requirements and alcohol taxes, as well as subsidies for ethanol as fuel, but do these really combine to such a huge price difference? submitted by /u/Medium-Radio [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
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