"The speed of light is constant for every observer." But how can this be true? [pic]

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• "The speed of light is constant for every observer." But how can this be true? [pic]
• Angler fish lure their prey using light emitting bacteria, but why would the prey which spends its entire life in total darkness of the ocean depths be even lured to such an obvious trap? Do only "lost" living organisms from the upper layers get tricked like that?
• Now that we are several years removed how does the environmental impact of Deep Horizon compare to Fukushima? Is one worse than the other?
• What's the difference between an ionised hydrogen atom and a proton?
• Why do some ph meters go from -2 to 16? I thought ph only went from 1-14?
• f(x) = e^x, f(x) = sin(x) and f(x) = 0 are functions which arrive at itself again when derived (multiple times). Are there more such functions? Is this a relevant class of functions?
• Why does sound always propagate at the same speed though a given medium?
• Why is high voltage better for power transmission than high current?
• How do photons mediate electromagnetism?
• What principles of physics are at work in shaking a ketchup bottle?
• Is there any relationship between vitamin D deficiency or getting adequate levels of sunlight and ADD/ADHD, Depression, or other neurological disorders?
• How are individual photons counted in double slit experiment?
• Why is CPT symmetry so important in upholding QFT?
• How long does a Schwann cell live for?
• Is it possible to to change the wavelength of an EM wave by subtracting energy from it?
• What would a Bubble do in zero gravity/space ?
• How do EMP bombs work ?
• Is silver a colour? Or is it really just the true reflections of things and we only see it as the colour silver for some reason.

"The speed of light is constant for every observer." But how can this be true? [pic] Posted: 30 Jun 2018 02:58 AM PDT https://i.imgur.com/9ooRaEi.jpg submitted by /u/dekachin4 [link] [comments]

Angler fish lure their prey using light emitting bacteria, but why would the prey which spends its entire life in total darkness of the ocean depths be even lured to such an obvious trap? Do only "lost" living organisms from the upper layers get tricked like that? Posted: 29 Jun 2018 11:42 AM PDT submitted by /u/Shevvv [link] [comments]

Now that we are several years removed how does the environmental impact of Deep Horizon compare to Fukushima? Is one worse than the other? Posted: 30 Jun 2018 05:32 AM PDT submitted by /u/ObsceneGesture4u [link] [comments]

What's the difference between an ionised hydrogen atom and a proton? Posted: 29 Jun 2018 04:37 PM PDT This is probably a super dumb question, but I was watching the latest scishow space video and they mentioned ionised hydrogen atoms, and that it meant it had lost its only electron. Wouldn't that mean it was just a singular proton? submitted by /u/maythesnoresbwithyou [link] [comments]

Why do some ph meters go from -2 to 16? I thought ph only went from 1-14? Posted: 29 Jun 2018 08:48 AM PDT Looking for ph meters online, some claim to measure from -2 to 16, which I didn't think was even possible. Are they just wild claims or does ph really go beyond 1 - 14 submitted by /u/YourFavouritePoptart [link] [comments]

f(x) = e^x, f(x) = sin(x) and f(x) = 0 are functions which arrive at itself again when derived (multiple times). Are there more such functions? Is this a relevant class of functions? Posted: 29 Jun 2018 01:35 PM PDT submitted by /u/RelevantImpotence [link] [comments]

Why does sound always propagate at the same speed though a given medium? Posted: 30 Jun 2018 07:06 AM PDT As in why can't we have a slow vibration and a fast one (as in wave speed not frequency) submitted by /u/E-16 [link] [comments]

Why is high voltage better for power transmission than high current? Posted: 29 Jun 2018 04:58 PM PDT I've done some research and the following is what I understand of the topic. Please correct me if I'm wrong. When power is transmitted, electricity is sent to a transformer, which increases the voltage and decreases the current according to the relationship S = IV. The reason for doing this is to minimize power losses along the transmission line, which is equal to RI2 . However, isn't power loss also equal to V2 /R, so having a large voltage would also cause a large power drop? Clearly there is a fault in my logic here because the power calculated with current and the power calculated with voltage would not be equal, so I am looking for an explanation of this. Thanks! submitted by /u/TransformMySource [link] [comments]

How do photons mediate electromagnetism? Posted: 29 Jun 2018 10:15 PM PDT Photons are said to be the mediater particle for the electromagnetic force. What is the process behind that? submitted by /u/DoshNunez [link] [comments]

What principles of physics are at work in shaking a ketchup bottle? Posted: 29 Jun 2018 05:41 PM PDT I've noticed when I flip a ketchup bottle upside down and shake it with decisive force in one motion when the bottle is closed, all the ketchup rushes towards the cap. When I open the bottle, it comes out with a little bit more force than normal. Is this due to maybe a sort of semi-pressurized vacuum or something? Would it work the same with the cap off? Is this how physicists get their ketchup? Are there other factors or methods worth considering? submitted by /u/nfdgoisn [link] [comments]

Is there any relationship between vitamin D deficiency or getting adequate levels of sunlight and ADD/ADHD, Depression, or other neurological disorders? Posted: 29 Jun 2018 01:45 PM PDT submitted by /u/easymodeon1111 [link] [comments]

How are individual photons counted in double slit experiment? Posted: 29 Jun 2018 05:28 PM PDT Are sensors sensitive enough to detect individual 'impacts' of photons or just like they can only estimate a certain photon 'flow' rate that the sensor is reading on the target? I feel like that would be a way to get more confused about quantum physics if it's the first case, because the second is kind of easier to reason out if it's wave interference pattern. Also, how about like electrons too, aren't we just reading like some sort of denser compressed field in the peak of a wave? Sorry, I don't know much but I'm really trying to learn more bout this. submitted by /u/crackercider [link] [comments]

Why is CPT symmetry so important in upholding QFT? Posted: 29 Jun 2018 11:38 AM PDT People talk as if violating CPT would break modern quantum physics and require a rebuilding of it. Why is this? submitted by /u/IPlayMidLane [link] [comments]

How long does a Schwann cell live for? Posted: 29 Jun 2018 09:00 AM PDT Hey Reddit, I have a question about Schwann cells. So my understanding is that these cells will wrap the axon in a myelin sheath and in doing so trap themselves within the outer layers. My questions is since the Schwann cells are pushed to the outside of the myelin sheath, does the cell die or stay alive? And if it stays alive, what is the purpose of keeping it alive when it cannot do anything? Thanks, CuriousTehan. submitted by /u/CuriousTehan [link] [comments]

Is it possible to to change the wavelength of an EM wave by subtracting energy from it? Posted: 29 Jun 2018 04:12 PM PDT Or by adding energy. And if yes then how is it usually done in labs? submitted by /u/AtbBerare [link] [comments]

What would a Bubble do in zero gravity/space ? Posted: 29 Jun 2018 10:15 AM PDT Random thought I had. Please answer this submitted by /u/GhostShower [link] [comments]

How do EMP bombs work ? Posted: 29 Jun 2018 07:02 AM PDT Hello, I'm wondering how EMP bombs work and how they can disable electronics system. Do they propagate high voltage electricity to fry the systems or is it something else ? submitted by /u/Styfros [link] [comments]

Is silver a colour? Or is it really just the true reflections of things and we only see it as the colour silver for some reason. Posted: 29 Jun 2018 05:21 PM PDT submitted by /u/travellingscientist [link] [comments]

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Psychologists and/or psychiatrists, what is the difference between dissociative identity disorder and alter ego?

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• Psychologists and/or psychiatrists, what is the difference between dissociative identity disorder and alter ego?
• Do we innately conceal our genitals?
• Did Paleolithic diets lead the human jaw and face to develop a different shape?
• Why does nitrogen break the octet rule in NO, while oxygen do not?
• Which substances or foods create metabolites that can be detected for extended periods of time?
• How important is visual data of lip movements during language acquisition? Do people blind from birth pronounce words as properly as seeing people?
• Why is it that when you cramp flexible circles together you get hexagons (honeycomb) specifically, and not any other shape?
• Do snakes live together? (Garter snakes)
• Extracting and burning fossil fuels has a well documented effect on the climate and atmosphere, does extracting from fossil water reserves have a similarly significant impact on climate, atmosphere, and global water cycles?
• Does blood conduct electricity?
• Why does rain affect the clarity of AM radio, but not FM?
• If you swallow something, would you get the same nutritional value if you chewed it?
• If a woman who is pregnant gets or has cancer, is it possible for the child to get cancer as well?
• In particle accelerators, could we handle charged dust-sized particles the same way we handle ions, protons and electrons? How much energy could we potentially impart to a dust-sized particle this way?
• Do non-human animals appreciate human music?
• What is the name for the act of the mind personifying characters?
• Why is there much more of certain elements compared to the elements next to them on the periodic table?
• Do fish go pee?
• How do two very separate continents have very similar species of life?
• What causes our bodies to be allergic to certain foods, medicines, or other things?
• What is field effect mobility and saturation mobility?
• Can multiple parallel procedures be simulated as a one?

Psychologists and/or psychiatrists, what is the difference between dissociative identity disorder and alter ego? Posted: 28 Jun 2018 07:40 PM PDT submitted by /u/be_a [link] [comments]

Do we innately conceal our genitals? Posted: 29 Jun 2018 01:27 AM PDT Clothing seems to cover the genitals across all cultures. Reading on Wikipedia, it seems that covering the genitals began at most 72,000 years ago, as remains have been found with clothing from that time. But for all of recorded history across all cultures that recorded history, clothing that covered at least the genitals was considered natural and normal for everyday life. Glorious Wikipedia claims, in the article history of nudity, that nudity was the norm in "warmer climates" until the introduction of Islam or Christianity. It claims that nudity is still the norm in "Mursi, Surma, Nuba, Karimojong, Kirdi, Dinka and sometimes Maasai people in Africa, as well as Matses, Yanomami, Suruwaha, Xingu, Matis and Galdu people in South America". Upon further examination all of these claims are sourced to Active Naturists, "what if nudity were a norm?" (sic), a nudist blog post scholarly journal, surely. I'm sure it's a great source, since it's cited on Wikipedia and all, but it seems to stake its claims that nudity was the norm among those peoples on questionable grounds: Artwork and statuary, mostly from the ancient Greeks, who notably liked naked young guys and also are not any of the people listed Photos of African boys/men during nude initiation rites Quotes from noted racist Henry Morton Stanley about the clothing habits of "the naked savages" during appeals to the British to claim African colonies and convert the natives "to the wearing of clothes" Photos of nude Nuba men presented with scarcely believable context; perhaps that is their everyday habit, but other sources suggest that the nudity is related to traditional Nuba wrestling Some photos of Amazon native people presented with extremely questionable context Various other photos of native African and Amazonian people, which Active Naturalist gives me no reason to believe are typical A ton of photos of native African and Amazonian people who are clothed in their genital region, but presented as if they are nude Any further Googling just gets me shitty pop-psych articles like "if we were nude guys would be horny all day duh". Are there any human cultures where the genitals would be exposed in daily activities? Do we know why we prefer covering our genitals? submitted by /u/Xelif [link] [comments]

Did Paleolithic diets lead the human jaw and face to develop a different shape? Posted: 29 Jun 2018 05:59 AM PDT According to Wiki, "After the advent of agriculture over 10,000 years ago, soft human diets became the norm, including carbohydrate and high energy foods. Such diets typically result in jaws growing with less forward growth than our paleolithic ancestors and not enough room for the wisdom teeth." submitted by /u/icydepth [link] [comments]

Why does nitrogen break the octet rule in NO, while oxygen do not? Posted: 28 Jun 2018 01:44 PM PDT So NO has 11 valence electrons. The oxygen fills up all 8 of its electrons, while nitrogen gets the radical. Why doesn't oxygen get the radical and nitrogen with 8 e-. I get that it breaks the octect rule because it has a odd number of valence electrons. submitted by /u/TheNamesGrant [link] [comments]

Which substances or foods create metabolites that can be detected for extended periods of time? Posted: 28 Jun 2018 08:38 AM PDT I was recently reading about alcohol and how even after your body has completely processed and excreted the ethanol, it creates metabolites Ethyl Palmitate and Ethyl Glucuronide that can be detected in hair for up to 90 days. I am curious as to why these metabolites hang around for so long and also which other substances and/or foods have metabolites that can also be detected for any extended period of time. For example, if I consumed caffeine how long would you theoretically be able to test for it if you wanted to? What about broccoli, or carrots etc? Are there any factors that cause metabolites to stick around longer, or certain groups of foods? I hope my question was clear enough and not too broad scoped. Thanks! submitted by /u/metabolitesarecool [link] [comments]

How important is visual data of lip movements during language acquisition? Do people blind from birth pronounce words as properly as seeing people? Posted: 29 Jun 2018 01:55 AM PDT submitted by /u/Shevvv [link] [comments]

Why is it that when you cramp flexible circles together you get hexagons (honeycomb) specifically, and not any other shape? Posted: 29 Jun 2018 03:57 AM PDT What is the mathematics going on? I'm expecting some equation that links pi to the circumference of a circle and a constant, 6, or something like that. submitted by /u/WhyUFuckinLyin [link] [comments]

Do snakes live together? (Garter snakes) Posted: 28 Jun 2018 04:54 PM PDT There is a rock near my house with a hole in it and everyday I walk by and there are 2-3 snakes living together in the hole. It seems like they're friends or a family or something. The biggest snake stays at the exit, male garter snake, then when I approach if I get too close he will slither out and run off. Then when you look inside there is at least one other snake that appears to be female. Do snakes live together and are they really smart enough to devise this survival strategy? Is this common? submitted by /u/jesusd2 [link] [comments]

Extracting and burning fossil fuels has a well documented effect on the climate and atmosphere, does extracting from fossil water reserves have a similarly significant impact on climate, atmosphere, and global water cycles? Posted: 29 Jun 2018 06:55 AM PDT submitted by /u/1Il1Il1 [link] [comments]

Does blood conduct electricity? Posted: 29 Jun 2018 03:06 AM PDT My mind says it does, because theres iron in it, but my gut doubts it. submitted by /u/Nintara [link] [comments]

Why does rain affect the clarity of AM radio, but not FM? Posted: 28 Jun 2018 01:19 PM PDT submitted by /u/pkuhrop [link] [comments]

If you swallow something, would you get the same nutritional value if you chewed it? Posted: 28 Jun 2018 12:10 PM PDT Probably a dumb question, but I've always wondered this. submitted by /u/MerpyBoy [link] [comments]

If a woman who is pregnant gets or has cancer, is it possible for the child to get cancer as well? Posted: 29 Jun 2018 04:48 AM PDT Unless I understand cancer wrong, I thought that, since cancer can spread, it could potentially spread to the child. submitted by /u/GamerX102 [link] [comments]

In particle accelerators, could we handle charged dust-sized particles the same way we handle ions, protons and electrons? How much energy could we potentially impart to a dust-sized particle this way? Posted: 28 Jun 2018 08:57 PM PDT submitted by /u/unia_7 [link] [comments]

Do non-human animals appreciate human music? Posted: 28 Jun 2018 12:42 PM PDT submitted by /u/vladesko [link] [comments]

What is the name for the act of the mind personifying characters? Posted: 28 Jun 2018 02:49 PM PDT Characters as in B, -, $, and 1, not as in Peter Parker, Coraline, Han Solo, and Tarzan. submitted by /u/Puzzleheaded_Stable [link] [comments]

Why is there much more of certain elements compared to the elements next to them on the periodic table? Posted: 28 Jun 2018 09:39 AM PDT My basic understanding of how elements are formed is that the heavier the element, the more energy is needed to create the conditions for it to be formed. So I would expect the occurance of elements to be pretty much descending the heavier the element is. But, looking at the webpage sourced below for the universes makeup, that's not so. For example, there's a lot more carbon than boron, much more oxygen than fluorine, and much more iron than maganese or cobalt. Why is this? http://periodictable.com/Properties/A/UniverseAbundance.v.log.html submitted by /u/froggison [link] [comments]

Do fish go pee? Posted: 28 Jun 2018 08:44 PM PDT submitted by /u/tjtepigstar [link] [comments]

How do two very separate continents have very similar species of life? Posted: 28 Jun 2018 11:54 AM PDT I.e. fireflies, squirrels, and crows in the US and Japan Edit: I.e. I.e. fireflies, squirrels, and crows in NA and Asia submitted by /u/sentientVibrator [link] [comments]

What causes our bodies to be allergic to certain foods, medicines, or other things? Posted: 28 Jun 2018 10:47 AM PDT Specifically, what happens in/on the body/skin that causes it to react to latex. submitted by /u/PixelatedBanana [link] [comments]

What is field effect mobility and saturation mobility? Posted: 28 Jun 2018 01:18 PM PDT Hey guys. I am currently researching TFTs(thin film transistors) and I need help finding out what field effect mobility and saturation mobility are. Thanks! submitted by /u/toiletpapershortage [link] [comments]

Can multiple parallel procedures be simulated as a one? Posted: 28 Jun 2018 10:41 PM PDT If you have an abstract system which runs a number procedures, naturally with possibility of being out of sync, is it possible to emulate the evolution of the whole as a single procedure. I just go idea that one could maybe encode the whole system as an evolution of one-dimensional string. Or does it turn out fundamentally impossible task? Please grant any notable properties, pros and cons, of such way of structure if you know any. submitted by /u/Jabutosama [link] [comments]

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Does caffeine actually increase the production of dopamine, or does it just enhance the dopamine already in your system?

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• Does caffeine actually increase the production of dopamine, or does it just enhance the dopamine already in your system?
• How does the mechanism for 'locking' something by pressing it into a slot and 'unlocking' by pressing back down work on devices like a nintendo ds?
• Does the edge of the observable universe sway with our orbit around the sun?
• Is it possible to work or study while lucid dreaming?
• What is the difference between continuous and discreet time translation symmetry?
• Pangea: How do we know that there wasn't anything else on the other side of the planet?
• Why does rubbing alcohol evaporate?
• How reliable/relevant is an IQ test, or "g" as a measure of human intelligence?
• Why don’t tattoos disappear?
• What is dirt made of? Is there a standard set of dirt ingredients that make it dirt, or does dirt/soil/the soft ground stuff vary entirely by location?
• How can we measure the age of the universe if time is relative?
• How is a vacuum a good insulator?
• How would the eruption of a volcano like Krakatoa compare to an eruption of The Yellowstone Caldera?
• When can a plant be officially considered dead?
• Why are raspberries hairy? What are those hairs for?
• How does the electric current used during electroconvulsive therapy go through the brain?
• Is intelligence inherited or created by environment; if a combination how much can be attributed to either ?
• Would an object falling from infinity to the surface of the earth reach escape velocity before it makes impact?
• Why did black holes get rejected as the reason behind the rate of rotation of the milky way?
• How does time distortion due to gravity work?
• How many passers-by do you need to create a pathway in grass?
• Can ticks, leeches, mosquitoes, or even bats die from drinking bad blood?

Does caffeine actually increase the production of dopamine, or does it just enhance the dopamine already in your system? Posted: 27 Jun 2018 06:38 PM PDT I was casually drinking my coffee and wondering what this is actually doing to my brain and why I feel so great when I drink it. Sure enough, it's partially because of dopamine. Here's why I am confused, though. Does the brain start producing more dopamine, or does it just take longer for it to be reabsorbed, or both? A lot of articles I read mention how it lets the dopamine "do it's thing more freely", but I'm not sure if that means ramp up production, or just act differently than before. submitted by /u/FungoGolf [link] [comments]

How does the mechanism for 'locking' something by pressing it into a slot and 'unlocking' by pressing back down work on devices like a nintendo ds? Posted: 27 Jun 2018 08:00 PM PDT Similarly to how clicking a pen works, my Nintendo DS accepts cartridges once they're pressed down a certain distance and it clicks into place. When I want the cartridge released I press back down and it releases the cartridge. How does this mechanism work? Is there an image I can look at? I was cleaning out my closet and I came across my old DS and realized that I have no idea how that mechanism functions. I never questioned it as a kid but now the question has been gnawing at me and I couldn't find an answer online so I've made this post submitted by /u/Lazy_Lifeguard [link] [comments]

Does the edge of the observable universe sway with our orbit around the sun? Posted: 28 Jun 2018 03:47 AM PDT Basically as we orbit the sun, does the edge of the observable universe sway with us? I know it would be a ridiculously, ludicrously, insignificantly small sway, but it stands to reason that maybe if you were on pluto, the edge of your own personal observable universe would shift no? Im sorry if this is a dumb question. submitted by /u/TheonsDickInABox [link] [comments]

Is it possible to work or study while lucid dreaming? Posted: 27 Jun 2018 06:57 PM PDT Let's say I am lucid dreaming, is it theoretically possible to "write" a program while dreaming, memorize it and type it in a computer when you wake up? Being able to work an extra 6-10 hours a day while still resting sounds interesting. submitted by /u/qwerty-_-123 [link] [comments]

What is the difference between continuous and discreet time translation symmetry? Posted: 28 Jun 2018 04:17 AM PDT Space-time crystals follow which and break which due to change in what (quantum spin?)? submitted by /u/stealthinator16 [link] [comments]

Pangea: How do we know that there wasn't anything else on the other side of the planet? Posted: 27 Jun 2018 03:55 PM PDT Apropos of this website, 240 million years ago, half of the earth was covered by a super continent, and the other half was covered by water. How do we know the land was all bunched up like that with nothing else on the other side? submitted by /u/dc_joker [link] [comments]

Why does rubbing alcohol evaporate? Posted: 27 Jun 2018 07:27 PM PDT Why does rubbing alcohol evaporate when in contact with air and why is it also super cold even when in a warm environment? submitted by /u/Jimi1967 [link] [comments]

How reliable/relevant is an IQ test, or "g" as a measure of human intelligence? Posted: 27 Jun 2018 02:21 PM PDT I'd like to have an idea of the scientific community's current position on the matter. How seriously should I take "g" and IQ tests as a psychometric theory/tool? submitted by /u/morests [link] [comments]

Why don’t tattoos disappear? Posted: 27 Jun 2018 02:55 PM PDT If your skin falls and and replaces itself, how come your layers of skin with the tattoo doesn't fall off? submitted by /u/Brae123 [link] [comments]

What is dirt made of? Is there a standard set of dirt ingredients that make it dirt, or does dirt/soil/the soft ground stuff vary entirely by location? Posted: 27 Jun 2018 12:23 PM PDT When you dig, you tend to hit either stone or sand or dirt. But maybe dirt isn't a thing, it's a set of things, like it's a folk concept with no scientific correlate? But even then, generally, what is that soft stuff that's not sand? submitted by /u/TacosForKristjen [link] [comments]

How can we measure the age of the universe if time is relative? Posted: 27 Jun 2018 12:13 PM PDT How do scientists reckon the universe is 13.8 billion earth years old if time is relative, and the nature of time would (in my understanding) have been of variable nature? Is that 13.8 billion years essentially a measurement of the growth of spacetime—13.8 billion years big? Thanks for any clarification you can provide. 🙂 submitted by /u/WeirdGoesPro [link] [comments]

How is a vacuum a good insulator? Posted: 27 Jun 2018 04:12 PM PDT I see a bunch of thermos cans advertise their double wall vacuum insulated bottle, but why it is good? submitted by /u/Marklar_the_Darklar [link] [comments]

How would the eruption of a volcano like Krakatoa compare to an eruption of The Yellowstone Caldera? Posted: 27 Jun 2018 04:00 PM PDT Let's say both were placed in the center of the USA, what would be the comparative fallout from the two volcanoes? submitted by /u/Kochis1818 [link] [comments]

When can a plant be officially considered dead? Posted: 27 Jun 2018 04:34 PM PDT With humans (and other animals), there seem to be a specific set of standards that are considered before declaring someone dead. When a person dies, there are still plenty cells that are still alive. However, when can plants be considered dead, if there even is a set of standards for such a thing? Is it when a majority or a certain percentage of its cells are dead? submitted by /u/ElongatedTaint [link] [comments]

Why are raspberries hairy? What are those hairs for? Posted: 27 Jun 2018 03:20 PM PDT What's the scientific explanation? submitted by /u/wrotslav [link] [comments]

How does the electric current used during electroconvulsive therapy go through the brain? Posted: 27 Jun 2018 06:18 PM PDT I thought skin was more conductive than bone submitted by /u/grumblecakes1 [link] [comments]

Is intelligence inherited or created by environment; if a combination how much can be attributed to either ? Posted: 27 Jun 2018 04:06 PM PDT submitted by /u/PuzzleheadedBoy [link] [comments]

Would an object falling from infinity to the surface of the earth reach escape velocity before it makes impact? Posted: 27 Jun 2018 03:03 PM PDT submitted by /u/TRJTRY [link] [comments]

Why did black holes get rejected as the reason behind the rate of rotation of the milky way? Posted: 27 Jun 2018 10:10 AM PDT I am currently reading the (illustrated) "brief history of time" by Steven Hawking. As stated in the Foreword most of the book remained similar to the original version from 1988. In the chapter about black holes Hawking states that there are probably way more black holes in the milky way than visible stars which would explain why our galaxy rotates at the rate it does. As far as I know the most accepted explanation of today is that the extra mass needed is provided by dark matter/dark energy. Therefore I assume that this understanding changed between 1988 and today. Why? submitted by /u/HerrZog103 [link] [comments]

How does time distortion due to gravity work? Posted: 27 Jun 2018 11:30 AM PDT What is it exactly that makes this happen, if it happens from objects such as black holes, can it then be reasoned that it happens from any object, simply on a much smaller scale? submitted by /u/Draconite999 [link] [comments]

How many passers-by do you need to create a pathway in grass? Posted: 27 Jun 2018 09:43 AM PDT submitted by /u/CH_0u3tte [link] [comments]

Can ticks, leeches, mosquitoes, or even bats die from drinking bad blood? Posted: 27 Jun 2018 12:50 PM PDT I know iron overdoses are a daily concern for creatures that feed exclusively off blood but is it possible for any such creature to ingest the blood of someone with a blood disease and die. (I don't mean being affected by the same disease but just dying cause the blood either didn't have what they needed or had a little something extra?) And if so, is it possible for any other these creatures to identify and avoid this? submitted by /u/themanintheyellow [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
Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States