How do people make gold edible?

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• How do people make gold edible?
• Are the melting ice caps and glaciers causing any meaningful desalination of the ocean and if so does this present a significant risk to ocean life?
• Genes can affect multiple traits, but can genes also affect other genes?
• Why is ethanol used as consumable alcohol, versus isopropyl alcohol which has less toxic metabolites?
• Are human fertility rates affected by population density?
• What’s the deepest recorded point in the ocean?
• What is the usual distribution of star mass in a galaxy?
• Why do anti-convulsants like lamotragine and carbamazepine act as mood stabilizers for people with bipolar?
• What is happening physiologically (in the lungs, alveoli, and general airway) when we cough?
• Why does gunpowder need the three specific ingredients of charcoal, sulfur and saltpeter? What purpose does each ingredient serve?
• When you rotate a glass, why does the liquid inside not rotate as much or at all compared to the glass?
• How do mushroom caps (fruit) transport nutrients?
• Is it possible to create an accurate 3d scan of a magnet using its magnetic field?
• What colors do cobras see? Do they have that sort of heat vision like the vipers?
• Why do near sighted people needs to wear glasses or contacts when using VR goggles to see clearly?
• Question about the behaviour of particles with hypothetical spin numbers?
• Why is it that hypercomplex number sets like quaternions or octonions need to have a power of 2 dimensions?
• How big is an “average” supernovas explosion diameter compared to the stars diameter?
• Which animals/organisms if any from earth could survive in space without the aid of any technology?

How do people make gold edible? Posted: 04 Aug 2019 08:02 PM PDT submitted by /u/kik-a-doodle-doo [link] [comments]

Are the melting ice caps and glaciers causing any meaningful desalination of the ocean and if so does this present a significant risk to ocean life? Posted: 04 Aug 2019 10:45 AM PDT submitted by /u/rab236 [link] [comments]

Genes can affect multiple traits, but can genes also affect other genes? Posted: 04 Aug 2019 09:15 PM PDT submitted by /u/HoomanGroovin [link] [comments]

Why is ethanol used as consumable alcohol, versus isopropyl alcohol which has less toxic metabolites? Posted: 04 Aug 2019 10:05 PM PDT submitted by /u/Wigster101 [link] [comments]

Are human fertility rates affected by population density? Posted: 04 Aug 2019 09:59 PM PDT submitted by /u/Dantes_inferno666 [link] [comments]

What’s the deepest recorded point in the ocean? Posted: 05 Aug 2019 12:27 AM PDT I was reading ocean themed horror stories and it got me wondering if the challenge deep of the mariana trench was the deepest point someone has been, or is there a deeper part that was recorded and not visited? submitted by /u/ImXTooNinjaxX [link] [comments]

What is the usual distribution of star mass in a galaxy? Posted: 04 Aug 2019 02:29 PM PDT I heard that M type stars are the most common stars, is there a relationship between how common a type of star is and how massive it is? Does it depend on where the star is in the galaxy? Does the mass of stars follow a normal distribution? submitted by /u/cfaust1 [link] [comments]

Why do anti-convulsants like lamotragine and carbamazepine act as mood stabilizers for people with bipolar? Posted: 04 Aug 2019 12:36 PM PDT submitted by /u/Uptown_Tim [link] [comments]

What is happening physiologically (in the lungs, alveoli, and general airway) when we cough? Posted: 04 Aug 2019 07:40 PM PDT submitted by /u/Quiqui22 [link] [comments]

Why does gunpowder need the three specific ingredients of charcoal, sulfur and saltpeter? What purpose does each ingredient serve? Posted: 04 Aug 2019 04:54 PM PDT submitted by /u/viet_huynh [link] [comments]

When you rotate a glass, why does the liquid inside not rotate as much or at all compared to the glass? Posted: 04 Aug 2019 10:52 AM PDT I've always been confused by this and needed an answer so I can show off and tell them about my new founded science wisdom. submitted by /u/tomgelse [link] [comments]

How do mushroom caps (fruit) transport nutrients? Posted: 04 Aug 2019 12:20 PM PDT I was just thinking back to my introductory biology class in university all those years ago and I remembered mushrooms were non-vascular organisms. I was wondering how they transported nutrients to the above-ground fruit? A google search revealed nutrient uptake occurs at the hyphae, but how is it transported throughout the rest of the body if they don't have vessels? submitted by /u/SleepingSkeever [link] [comments]

Is it possible to create an accurate 3d scan of a magnet using its magnetic field? Posted: 04 Aug 2019 10:17 AM PDT I read a bit about the hall effect, but didn't find any definitive answer about wether I could reconstruct my original magnetic object with it or some other means. submitted by /u/prog_r_amer [link] [comments]

What colors do cobras see? Do they have that sort of heat vision like the vipers? Posted: 04 Aug 2019 01:27 PM PDT I understand that vipers, pythons and boas have a sort of infrared/heat vision. That they mainly see blue and green. But what about cobras? Do they have this perk too? What colors do they see otherwise? submitted by /u/ShoutAtThe_Devil [link] [comments]

Why do near sighted people needs to wear glasses or contacts when using VR goggles to see clearly? Posted: 04 Aug 2019 11:11 AM PDT I find this confusing at times. The screen of the VR goggles are basically near your eyes and yet when you are near sighted you still need to put your glasses or contacts when using them in order to see clearly submitted by /u/gwapogi5 [link] [comments]

Question about the behaviour of particles with hypothetical spin numbers? Posted: 04 Aug 2019 12:27 PM PDT Heyo, undergrad physics student here. Asking the question here so I don't get crucified for asking it in my own department, since it gets to the heart of some fundamental quantum first principles which I guarantee I haven't learned properly. But we have lots of papers on how particles of hypothetical spin might behave. The most famous is the spin-2 graviton, but others like spin-1/3 particles I've also seen discussed. My question then is about similarity. Would, for example, a spin-(1±ε)/2 particle behave more and more like a fermion as ε approaches zero (assuming it is confined to have a rational value)? Or would the behaviour likely get more exotic? For example, would a spin-50001/10000 particle be essentially a fermion? GrantedbI don't expect such a question to be really nail-on-the-head answerable because it's so far purely hypothetical. But I'm genuinely interested to hear the response. submitted by /u/LilamJazeefa [link] [comments]

Why is it that hypercomplex number sets like quaternions or octonions need to have a power of 2 dimensions? Posted: 04 Aug 2019 05:59 AM PDT submitted by /u/MutatedAlgorithm [link] [comments]

How big is an “average” supernovas explosion diameter compared to the stars diameter? Posted: 04 Aug 2019 09:33 AM PDT I know average might be kinda arbitrary but just want to know if there's any sort of ratio between the diameters of the explosion itself and the star. I read that there's a corona that's something like 1.4 light years in diameter but that's been slowly expanding for quite a long time so it's not really an accurate representation of the explosion it's self. submitted by /u/Diggumdum [link] [comments]

Which animals/organisms if any from earth could survive in space without the aid of any technology? Posted: 04 Aug 2019 03:14 AM PDT submitted by /u/jinglejanglemantin [link] [comments]

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Are there any (currently) unsolved equations that can change the world or how we look at the universe?

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• Are there any (currently) unsolved equations that can change the world or how we look at the universe?
• How was Avogadro's number derived?
• How can blast waves be supersonic? Aren't all longitudinal waves limited by the speed of sound in the medium?
• How long does it take for two celestial bodies to become tidally locked? What does the transition from being not tidally locked to being tidally locked look like?
• How long does it take for glacial ice to re-form?
• What is the composition of Adipose Tissue?
• How come altitude doesn't affect dew point?
• Runaway High-Q Optical Resonator?
• [biology] Is a strawberry runner a brand new plant?
• When black holes collide, is there an explosion and why?
• How do medications cause you to gain or lose weight as a side effect?
• What method do they use to date wooden artifacts?

Are there any (currently) unsolved equations that can change the world or how we look at the universe? Posted: 03 Aug 2019 09:57 PM PDT (I just put flair as physics although this question is general) submitted by /u/ChristoFuhrer [link] [comments]

How was Avogadro's number derived? Posted: 03 Aug 2019 06:23 AM PDT We know that there is 6.02x1023 atoms in 12 grams of carbon-12, but how was this number came up from? submitted by /u/Ciltan [link] [comments]

How can blast waves be supersonic? Aren't all longitudinal waves limited by the speed of sound in the medium? Posted: 04 Aug 2019 02:05 AM PDT Alternative question: What determines whether a wave will be subsonic, transonic, or supersonic? What characteristics does a wave need to have to break the sound barrier? submitted by /u/notacuckreee [link] [comments]

How long does it take for two celestial bodies to become tidally locked? What does the transition from being not tidally locked to being tidally locked look like? Posted: 04 Aug 2019 03:59 AM PDT I'm wondering, specifically, if there's any "overshoot" right as tidal locking occur. Does one body simply rotate slower and slower, until it's rotation comes to a stop relative to the other body, or does it "overshoot" and reverse its direction of rotation before becoming tidally locked? submitted by /u/IAMA_Printer_AMA [link] [comments]

How long does it take for glacial ice to re-form? Posted: 03 Aug 2019 10:27 PM PDT Refer to this article, Greenland lost 11 billion tons of ice in a single day. How long will it take for this ice to form again? How long does it take for a glacier to form; and in case of an event like this where 197 billion tons of ice melted last month, will it ever come back to original proportions? submitted by /u/LegendaryFalcon [link] [comments]

What is the composition of Adipose Tissue? Posted: 04 Aug 2019 01:35 AM PDT I'm looking for the molecular or chemical makeup of adipose tissue (not necessarily its cell bio) to determine the triglycerides degree of saturation. To consider: when you buy a steak and you have the white fat that is either marbled in or on the side, I'm assuming it's a saturated fat purely based on its density. Is this hypothesis correct? Can anyone give me a direction or resources to look into? Thank you!! submitted by /u/mattdc79 [link] [comments]

How come altitude doesn't affect dew point? Posted: 03 Aug 2019 11:43 PM PDT Wouldn't water condense faster with low altitude higher pressure, and condense slower with high altitude lower pressure? With air pressuring the water molecules together, at sea level, wouldn't that facilitate condensation? submitted by /u/_ohHimark [link] [comments]

Runaway High-Q Optical Resonator? Posted: 03 Aug 2019 08:53 AM PDT What happens if you pump an optical resonator like a LASER, but don't let the radiation out? Like If you had a ruby laser without the semireflective mirror to let the energy out? What are the frame-by-frame details? submitted by /u/Aoidean [link] [comments]

[biology] Is a strawberry runner a brand new plant? Posted: 03 Aug 2019 07:21 PM PDT I was discussing the longevity of strawberry plants, which most sources say is 3-4 years. The person I was talking to said that, sure, each plant only bares fruit that long but they have runners to reproduce. My thinking on this, though, is that, if the runner is directly from the plant and not a germ cell (seed), then it's clock is identical to the mother plant. Or is this incorrect? Are runners brand new plants with a restarted 3-4 year life span? I've Goggled a bunch and not found the answer. Thank you for increasing my knowledge of biology! submitted by /u/nanuq905 [link] [comments]

When black holes collide, is there an explosion and why? Posted: 03 Aug 2019 01:17 PM PDT Nothing can escape a black hole, yet when things collide they release energy. What happens when black holes collide? submitted by /u/Bobbitibob [link] [comments]

How do medications cause you to gain or lose weight as a side effect? Posted: 03 Aug 2019 01:12 AM PDT If you eat exactly the same on and off a medication could it make you gain or lose weight? (Not just water weight, but actual weight in the long term.) I thought weight was just the difference between calories in and calories out, so I don't understand how this happens, but I've definitely gained weight from medications. Do these meds actually just affect appetite and make you eat more? Or does it affect your metabolism and make you burn fewer calories or something? Finally, what stuff in medications lead to side effects that involve weight gain? submitted by /u/orangeshade [link] [comments]

What method do they use to date wooden artifacts? Posted: 03 Aug 2019 03:18 AM PDT I was wondering, can they use carbon dating, or is that just for animals that have consumed carbon-14. And is tree ring dating pretty much useless due to the fact that the wood would have been shaped (pardon the pun). submitted by /u/erjhgbnerbg [link] [comments]

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When Archaeologists discover remains preserved in ice, what types of biohazard precautions are utilized?

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• When Archaeologists discover remains preserved in ice, what types of biohazard precautions are utilized?
• How does chemotrapy cause hairloss?
• Where did dinosaurs live?
• How is the amount of mixing quantified in a mixed quantum state?
• In what ways does Game Theory account for irrational actors?
• Are band gaps experimentally measured or can they be predicted to a certain precision?
• Why do black holes in a binary system spiral inwards instead of remaining in a stable orbit of each other?
• What Does Rabies Do to the Brain?
• How does the brain physically recover from traumatic events?
• If ice takes up more space than water, and 90% of an iceberg is underwater, why doesn't the melting of the polar icecaps lower the sea level?
• How are sea levels measured?
• Do fish "breath" heavier if they have to swim fast?
• How is the insulin transfer into the bloodstream regulated?
• What kind of metals are found on Triton?
• I've heard that babies take some time to recognize colors. After birth they are supposed to know only black and white. Is that true? If so, how does this happen?
• What exactly makes the sound when a lightning bolt strikes something?
• What exactly does it mean when talking about the universe being flat or curved?
• What factors contribute to how similar siblings look?
• Can we identify distant planets that does not have an orbit passing between us and their star? E.g. We are looking from up/down to the system. If so, how?

When Archaeologists discover remains preserved in ice, what types of biohazard precautions are utilized? Posted: 02 Aug 2019 04:22 PM PDT My question is mostly aimed towards the possibility of the reintroduction of some unforseen, ancient diseases. submitted by /u/IntenseScrolling [link] [comments]

How does chemotrapy cause hairloss? Posted: 02 Aug 2019 09:12 PM PDT submitted by /u/Camaratha [link] [comments]

Where did dinosaurs live? Posted: 03 Aug 2019 02:55 AM PDT During the Jurassic stage, was Pangaea a thing or was the continents separate? And if they was where certain dinosaurs only native to selected geographical locations? Also did dinosaurs evolve like we did and is there any evidence of this? submitted by /u/rhubardcustard99 [link] [comments]

How is the amount of mixing quantified in a mixed quantum state? Posted: 03 Aug 2019 05:41 AM PDT Consider a system of 3 qubits. Then the highest mixing allowed by the 2-qubit reduced density matrices is them being equal to the identity in a two-dimensional subspace. How is the amount of mixing determined in a mixed state? I know a two-partite state is maximally mixed iff all coefficients of the convex combination of pure states are 1/n (n being the dimension of the state). But when is a non-maximally mixed mixed state more mixed than another non-maximally mixed mixed state? How does one determine the highest mixing allowed in such a system? submitted by /u/KindheartedFireant [link] [comments]

In what ways does Game Theory account for irrational actors? Posted: 03 Aug 2019 05:33 AM PDT My understanding of Game Theory is limited, so please feel feel to correct me on any of the following logic that leads me to my question: Game theory posits that, when acting rationally, every action in a given contest has an objectively-correct response. But how does Game Theory account for the irrational actor? Even just on a relative or "unofficial" basis? For example: I'm facing Kasparov in chess. He knows more than me about the workings of the game, therefore I'm less capable of rational acting than he is in our contest. Game theory would posit a certain set of actions, but I'm me and he's Kasparov. He'll probably follow what GT says he would do. I might as well be playing Jenga. Does Game Theory account for the fact that, compared to Kasparov, I am completely irrational? If so, how? Thanks in advance!! submitted by /u/ThrowawaysStopStalks [link] [comments]

Are band gaps experimentally measured or can they be predicted to a certain precision? Posted: 03 Aug 2019 02:05 AM PDT I understand what band gaps are, how they differ for conductors, insulators, and semi-conductors, and generally why they exist, though I not have taken quantum, electrodynamics, or modern physics, so my knowledge may be incomplete. submitted by /u/_Sunny-- [link] [comments]

Why do black holes in a binary system spiral inwards instead of remaining in a stable orbit of each other? Posted: 02 Aug 2019 02:53 PM PDT submitted by /u/Hexidian [link] [comments]

What Does Rabies Do to the Brain? Posted: 03 Aug 2019 12:32 AM PDT I've Google'd around but haven't found anything exceedingly clear. Does anyone know, once the rabies virus travels from the peripheral nervous system to the brain, what it actually does there? Is this an area in which our body of knowledge is simply sparse? I came across this article which provides some insight. https://news.uaf.edu/research-may-reveal-how-rabies-induces-specific-behavior Namely, it shows that the rabies glycoprotein binds to and disables nicotinic acetylcholine receptors in the brain. Similar to what it does in muscles. But I'm looking for more detail on how mechanisms like this, or anything else that the rabies virus does, actually induce aggression, hydrophobia, and behavioral changes. submitted by /u/CaliforniaHooligan [link] [comments]

How does the brain physically recover from traumatic events? Posted: 02 Aug 2019 09:27 AM PDT submitted by /u/frying_pans [link] [comments]

If ice takes up more space than water, and 90% of an iceberg is underwater, why doesn't the melting of the polar icecaps lower the sea level? Posted: 02 Aug 2019 07:31 AM PDT submitted by /u/godsgiftnoblefamous [link] [comments]

How are sea levels measured? Posted: 02 Aug 2019 11:10 AM PDT In an article about the current problem of rapidly melting ice on Greenland, I read the following: "Up to half the surface of the island's ice sheet is thought to be currently melting, with runoff equivalent to a 0.5mm rise in global sea levels in July alone." How can scientists determine that? I mean I understand that they are calculating how much ice had melted and how much that amount of water adds in top of the current sea levels, but how can we accurately determine the sea level we're starting out with? The seas are constantly moving and under the influence of tides, storms, evaporation, rain etc. I guess scientists are averaging that out somehow, but can we even determine the circumference of the Earth to such a precise degree (fractions of millimeters)? submitted by /u/pandaelpatron [link] [comments]

Do fish "breath" heavier if they have to swim fast? Posted: 02 Aug 2019 08:48 AM PDT So we run for example we begin to breath heavy and fast as our muscle need more oxygen. Does this also happen with fish where they need to take in more water if they are escaping a predator? What about birds and reptiles? Now that I think about it I've only seen mammals breath heavy after running/moving quickly in general. submitted by /u/TheGulpmaster [link] [comments]

How is the insulin transfer into the bloodstream regulated? Posted: 02 Aug 2019 10:07 AM PDT I suppose you need to detect the sugar concentration?! But how and with which receptors? And is there some "holding back mechanism" in beta-cells or is just the insulin production reduced (by closing Glucose channels)? submitted by /u/Spac3junkie [link] [comments]

What kind of metals are found on Triton? Posted: 02 Aug 2019 09:55 AM PDT Hi /r/askscience, I'm doing some reading on the different moons in our solar system and in the descriptions I've found of Triton it says that the surface consists of icy rock and "some metals". However, I can't seem to find any information anywhere on exactly what metals they're talking about and in what abundance the occur on the moon. Do we simply not have this information? That would make sense to me since we have sent limited probes that far out in our solar system. What's the word on this? submitted by /u/TheRealTrashmaster [link] [comments]

I've heard that babies take some time to recognize colors. After birth they are supposed to know only black and white. Is that true? If so, how does this happen? Posted: 02 Aug 2019 05:45 AM PDT submitted by /u/spirit-salamander [link] [comments]

What exactly makes the sound when a lightning bolt strikes something? Posted: 02 Aug 2019 07:10 AM PDT Also sorry in case flair is wrong. Got a tiny bit confused. submitted by /u/FeathersofFear [link] [comments]

What exactly does it mean when talking about the universe being flat or curved? Posted: 02 Aug 2019 07:34 AM PDT This is something I've never managed to get a grasp on. In laymans terms would it mean that if the universe was flat things would go on forever if you traveled in a straight line, and if it was curved you would eventually end up back at your starting point? But there's also an inverse curve or something too isn't there? submitted by /u/Amooses [link] [comments]

What factors contribute to how similar siblings look? Posted: 02 Aug 2019 11:12 AM PDT Is it mostly genetics between the mom and dad, random chance, diet, other external stimuli? submitted by /u/WHOmagoo [link] [comments]

Can we identify distant planets that does not have an orbit passing between us and their star? E.g. We are looking from up/down to the system. If so, how? Posted: 02 Aug 2019 05:06 AM PDT submitted by /u/vovsuchinternet [link] [comments]

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