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90h825 | what is the difference between a Sheriffs department and a Police department? They both seem to do the same thing depending on where you live. | Other | explainlikeimfive | [
"e2qbrqd",
"e2qg18t",
"e2qc8zl"
] | [
"In the US? Sheriffs work for a county. Police work for a city or town. State troopers work for a state."
] | [
35
] | [
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lkfbnh | How does stomach create noises? | Biology | explainlikeimfive | [
"gnjnj0r",
"gnjfj5h",
"gnjfo8o",
"gnk9yee",
"gnk1dxf"
] | [
"To simplify this a lot, it's pretty much like internal farts?"
] | [
163
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"url"
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f87i10 | How do they supply hot tap water in whole country ? | I am currently in Russia and there is hot water supply in every building. I can see the pipes which contain the hot water but what is the source ? | Engineering | explainlikeimfive | [
"fijms2k",
"fijkf7b",
"fijml94",
"fijjzrh"
] | [
"I believe the term you're looking for is district heating (DH). It is used to supply a large amount of buildings with hot water by heating the water in combined heat and power (CHP) stations or thermal power stations. In some countries or especially in rural areas district heating isn't really used, but it's commo... | [
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"https://imgur.com/krJxPLy"
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o5gbfb | How does heterochromia affect offspring eye color? | Hey there, I was just watching a YouTube video explaining the chances/possible out comes of children’s eye color based on their parents. It said if one parent has green and the other brown the chance for blue eyes is around 12% however all my siblings and I have blue eyes. My mother has green eyes while my father has o... | Biology | explainlikeimfive | [
"h2mqwo7"
] | [
"Heterochromia iridium is not a singular disorder. It is just a description of a symptom that may present as a result of many different syndromes; whether [congenital or acquired]( URL_0 ). With Heterochromia iridium, there is an affected eye that usually does not reflect the genetics of the person, the color is si... | [
3
] | [
[
"https://en.wikipedia.org/wiki/Heterochromia_iridum#Classification"
]
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"url"
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"url"
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a9jvbk | Why are more common batteries non-rechargeable? What about them makes them more popular then rechargeable batteries? | From my limited understanding of electronics, the simplest forms of batteries (including the ones you can make in your second grade physics kit from penny's and cloth) are meant to be changed and discharged. What makes common disposable batteries different/advantageous? | Chemistry | explainlikeimfive | [
"eck03ib",
"eck06bz",
"eck1ncj",
"eck8p56"
] | [
"Batteries convert chemical potential into electrical current. With rechargeable batteries, if you reverse the flow of current then the chemical reaction also runs in reverse. Alkaline batteries (the most common non-rechargeables) don't fully reverse their chemical reaction when you try to charge them. This makes t... | [
14
] | [
[],
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] | [
"url"
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72rqds | Why is the spinal cord so difficult to attach? | Biology | explainlikeimfive | [
"dnkwf28"
] | [
"If you mean \"**re-**attach\", as in re-connecting the spinal cord after it's been severed as a result of some trauma, the answer is that the spinal cord is basically just a big bundle of nerves. If it gets severed, that's a problem. *Physically* stitching the nerves back together isn't *that* difficult (though th... | [
8
] | [
[]
] | [
"url"
] | [
"url"
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8cdhdj | Why is the US healthcare system so poor compared to i.e. Germany or the UK? What prevents them from essentially just copying a system that is proven to work elsewhere? | People still tell stories all the time of how their lives were ruined by medical bills. What are the downsides to better healthcare, like the UK NHS or the German Krankenkasse? If systems like these have proven themselves why are they not simply taken up by other countries (not just the US, but it's probably the bigges... | Economics | explainlikeimfive | [
"dxe5ed1",
"dxe3kyh"
] | [
"\"Copying the system\" is difficult for 2 unrelated reasons: * A new system won't just affect the population, it would affect the health care workers (doctors, etc.) and institutions (hospitals, insurance companies, etc.), and if the changes are dramatic, they can result in \"outages\" so to speak. Imagine a scena... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
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ab9a6n | How much of an effect do daily vitamins have on someone? Is it ever noticeable? | I take one of those daily vitamin/calcium tablets every day cuz I'm sort of a picky eater and I just keep wondering to myself how much they really even do cuz it kinda seems like they don't do anything. | Biology | explainlikeimfive | [
"ecygni1",
"ecyok7w",
"ecz0iwe",
"ecz4fui",
"ecz6pyi",
"ecyl8xp"
] | [
"Assuming you're eating a reasonably decent variety and quantity of food, and have no other outstanding medical issues that would require a supplement, they don't do all that much. If your diet is unusually narrow or light, then they'll smooth things over a bit (i.e. you won't get healthier, but you won't get sick ... | [
73
] | [
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6x6s1y | How do we have rhythm? | How can someone tap their foot to a best for example with little to no thought? And how come some people have a terrible sense of rhythm? | Biology | explainlikeimfive | [
"dmdyrt8"
] | [
"Rhythm is innate in life. The first rhythm is the rhythm of your mother's heartbeat in the womb. Then it's your own heartbeat and pulse. You need rhythm in your walk (otherwise, you're limping). If you walk while stomping your feet, you're creating a percussive beat. Then get 3 people doing the same thing, and you... | [
9
] | [
[]
] | [
"url"
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"url"
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n3mmk4 | can a airplane pilot put the plane in autopilot the whole time they fly? | Technology | explainlikeimfive | [
"gwqq3d2",
"gwqqgiq",
"gwqq9md"
] | [
"At the very least, takeoffs would still be flown by hand, since (to my knowledge) many jet's autopilots won't engage unless you are on a somewhat stable heading and are closely trimmed (flight controls set so that minimal yoke/sidestick pressure is needed to maintain the current path) to your current flight path. ... | [
8
] | [
[],
[],
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ips68v | . What decides an animals longevity as for as mortality? A horse, way stronger and healthier than most humans, live only to around 20 to 30 years, yet the steady rate when humans expire is around 70 to 80 years. How does this work? | Biology | explainlikeimfive | [
"g4logr0"
] | [
"The faster a speices cells divide, the longevity of their organ tissue, the efficiency of their kidneys and liver, and their diet and lifestyle all factor into age. Human tissue is pretty long lasting compared to most species, as cells divide DNA is slowly broken down, until cancer or organ failure or a dozen othe... | [
19
] | [
[]
] | [
"url"
] | [
"url"
] | |
776v4d | How does clearing browser cache fix a lot of website issues? | Technology | explainlikeimfive | [
"dojhexd"
] | [
"In the case of a web browser, sometimes temp files and cookies are not current, or even become corrupted. Either way, if changes were made in the browser when trying to load, if the browser is attempting to use what is cached and it is conflicting with what the website currently has, then it can load screwy or not... | [
13
] | [
[]
] | [
"url"
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lte4rn | How does the "second wind" works? | I was wondering how exactly does this "second wind" works? Does your body gets a random boost of energy or what? | Biology | explainlikeimfive | [
"goxho3d",
"goxfuj2"
] | [
"Somewhere deep inside your brain the rocky theme starts playing. Your goal becomes your only focus as tunnel vision takes over. The montage begins. The chaos emeralds circle your body. You're now super sonic and have the ability to run an extra bit."
] | [
6
] | [
[],
[
"https://en.wikipedia.org/wiki/Second_wind"
]
] | [
"url"
] | [
"url"
] |
fhiu2t | How do humans learn the meaning of words that aren't nouns? | Other | explainlikeimfive | [
"fkbg42o",
"fkc0564",
"fkby0vw",
"fkc6h0o"
] | [
"Language isn't learned, initially, by describing the meaning of the words. Language is learned by associating of the sounds of the words with the thing they describe. As you note, this is rather straightforward with simple objects. But humans are capable of abstract thought and learning from context and use. Plent... | [
377
] | [
[],
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6cxcer | How do animals with white coloring on their bodies keep from permanently staining their fur? | Biology | explainlikeimfive | [
"dhy3a23"
] | [
"1) There's not a lot of common, naturally-occurring things that stain hair that readily. We need strong artificial chemicals to do it to our own hair. 2) The fur keeps growing. If you bleached your hair blonde, it wouldn't be permanent. Soon enough you'll grow more new hair."
] | [
6
] | [
[]
] | [
"url"
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8155oh | Why rich countries have a higher cancer rater than poor ones ? | [source]( URL_0 ) | Biology | explainlikeimfive | [
"dv0j847",
"dv0jbaw",
"dv0i06o",
"dv0oas2",
"dv0xwrr",
"dv0kxge"
] | [
"Survivor(ship) bias. Even with age correction, one of the most likely explanations is that survivor bias spans all age groups. In a less developed country with limited access to healthcare, everyday infections, diseases, and ailments in general become much more severe. Still, there are other factors that contribut... | [
261
] | [
[],
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"https://www.cancer.gov/about-cancer/causes-prevention/risk/obesity/obesity-fact-sheet"
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[],
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6k6vy1 | How did Japan develop this multifaceted culture; where on one hand it is steeped in the deepest of traditions dating back thousands of years; on the other it is a society in a continual state of rapid flux, with a very modern take on everyday problems? | tl;dr : A land known for both the exquisite craftsmanship of Katanas (Samurai swords) and Robots, just how? | Culture | explainlikeimfive | [
"djjsm88",
"djk6q1n"
] | [
"One thing I know is that the US influenced Japan culture quite a bit after WWII. As you should know, Japan was forbidden to have a military. That was Article 9. It offered Japan \"a way of retaining a positive sense of uniqueness in defeat\". Japan modernized quite a bit and at a rapid pace post-WWII. I don't reme... | [
9
] | [
[],
[]
] | [
"url"
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"url"
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991jfh | Why can we make 911 calls literally anywhere regardless of service but can't make regular calls? | Technology | explainlikeimfive | [
"e4k8hkr",
"e4kgvii"
] | [
"The simple answer is that 911 calls are very, very important. So important, in fact, that all the cell providers have agreed with authorities to let any phone through that needs to make an emergency call. No matter if it's their customer or not. Because it's one of those times when who you are paying your bill to ... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
byozns | Why street lights during night time are warm orange colored and not white lights? Won't having white lights seem more like daylight? | Physics | explainlikeimfive | [
"eqjzyc6",
"eqk5ei2",
"eqk45t5",
"eqknk04",
"eqktg96"
] | [
"The yellow light comes from Sodium lamps. It's just how they glow for chemical reasons. More modern street lights are LEDs and more white to light-blue. They're also brighter and more directed instead of glowing in all directions."
] | [
41
] | [
[],
[],
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"url"
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kvqub5 | The color of an object is determined by how it absorbs/reflects light. But why, exactly? | I understand that it has to do with which wavelengths the material absorbs (and turns into thermal energy?). The one(s) that it doesn't absorb, is the color we actually see. But what physical property determines, which material can absorb which wavelength? | Physics | explainlikeimfive | [
"gizsyhb",
"gizt863",
"gizttay",
"gizt9c7",
"giztnn9"
] | [
"each element has has electrons on shells/layers, and those electrons constantly absorb energy and release it, depending on the vibration frequency and the number of electrons a atom has, the energy is released in different frequencies, some of those light. also molecules have Intramolecular bonds which vibrate in ... | [
6
] | [
[],
[],
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] | [
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edydv3 | when we are looking through glass how do our eyes know when to focus beyond it and when to focus on the small particles on the glass | Biology | explainlikeimfive | [
"fbm4o44"
] | [
"You can control that. However, your lense muscles are tensed way harder when looking at something closer. So it'll be more natural/easier to look through it and see what's behind."
] | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
5lyfmr | Why do we expect technologically advanced extraterrestrial life to broadcast radio signals into space? | Technology | explainlikeimfive | [
"dbzfws2"
] | [
"Of all the artificial methods we know to transmit information through a vacuum, the electromagnetic spectrum is pretty much what we can both send and receive; there may be other theoretical concepts, but radio, and light, and various other points along the electromagnetic spectrum are what we have to work with. It... | [
6
] | [
[]
] | [
"url"
] | [
"url"
] | |
6dr7n5 | what exactly is a jihiadi? Or jihadist? | Other | explainlikeimfive | [
"di4rk0u",
"di4rvy9"
] | [
"A jihad basically translates to \"struggle\". This might for example be used to refer to a physical struggle against those seen as enemies of Islam, or it might be the internal struggle of someone against sin. So you might have a jihad against alcoholism, or to lose weight, instead of always thinking of jihad as m... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
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ag8c6f | How do multiple programmers work on a game/project together? Do they each work on completely different parts or do they have to communicate on what they've been doing and what needs to be done? | Engineering | explainlikeimfive | [
"ee48auw",
"ee48lxm",
"ee4aaqh",
"ee4j1js"
] | [
"Planning, documenting code, and compartmentalizing tasks. Or, in lots of cases, it's just total chaos."
] | [
70
] | [
[],
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] | [
"url"
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adk6wr | Why do animals have an instinct not to die, if they don’t even know what happens after death. | Biology | explainlikeimfive | [
"edhpjec",
"edho1el",
"edhng0t"
] | [
"Evolution. A mother bear gives birth to two cubs. One (due to totally random gene combination) is not afraid of death, and dies early on. Second (again, due to totally random gene combination) is afraid of death, and lives a long life, mating with some females and becoming father of more cubs. The first \"mutation... | [
25
] | [
[],
[],
[]
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"url"
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"url"
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79uiee | Zoning out while driving and not killing anyone | Repost | explainlikeimfive | [
"dp4zb32",
"dp573jn",
"dp4yjfd"
] | [
"You go into autopilot, your brain doesn't take logs unless something interesting occurs, but while you're in autopilot you are still actively scanning the road and controlling the car and responding to routine inputs(stop signs, road markings, corners in the road) Once you do a task enough your brain makes an auto... | [
28
] | [
[],
[],
[]
] | [
"url"
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"url"
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6wacf6 | why are the primary colours red, blue, yellow when they are not combinations for both additive and subtractive colour theories (rgb and cmy)? | Other | explainlikeimfive | [
"dm6oake",
"dm6lvbp"
] | [
"For additive colours the primaries are red, green and blue. Red plus green makes yellow; red plus blue makes magenta; and green plus blue makes cyan. For subtractive colours the primaries are yellow, cyan and magenta. Yellow plus cyan makes green; yellow plus magenta makes red; and cyan plus magenta makes blue. Sc... | [
5
] | [
[],
[]
] | [
"url"
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621v2b | Why do weed and alcohol cause 'the munchies'? | Other | explainlikeimfive | [
"dfj2ye0",
"dfj1cm1",
"dfjarij"
] | [
"Your brain in both situations: No weed/booze, \"I don't really need anything too sweet or salty, just a little hungry.\" On Weed/Booze, \"Lowered inhibitions mean i don't care what goes in me because I'm only thinking about now, so yes, I'll take the chocolate covered chocolate with dipping chocolate.\" Also Canna... | [
8
] | [
[],
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gi4jn5 | Why do we rub our eyes when we're tired? | Biology | explainlikeimfive | [
"fqck7q3"
] | [
"When you’re tired your eyes are usually dry, rubbing them stimulates the glands that release fluid. You also get droopy eyes when tired and the physical stimulation helps the muscles keep them open. Finally there’s also a nerve connection between your eye muscles and heart that is stimulated by rubbing your eyes. ... | [
8
] | [
[]
] | [
"url"
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"url"
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mfq2gb | Are LEDs of varying color doped to get a certain frequency or do they use dyed plastic heads to get the color? | Do they dope the silicon with various element to get the bandgap which matches with the wavelength the color, or do they just dye a transparent LED head (or whatever it is called) and use a single frequency? | Technology | explainlikeimfive | [
"gsoshex",
"gsoru2i"
] | [
"Yep, the use different materials to get a specific frequency, you’ll sometimes see blue LEDs called “gallium nitride” because that’s what they use to make them. However white LEDs use just blue LEDs, but put a layer of phosphor on top in order to get all the colors of white light in a spectrum. There are some rare... | [
37
] | [
[],
[]
] | [
"url"
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"url"
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8m2wd9 | In Sweden i see the moon day and night. Since the moon is smaller than our Earth, how is it possible that the Moon is visible on the other side of Earth aswell? (Like in America) | Other | explainlikeimfive | [
"dzkcf73"
] | [
"You don't see it *all* day and *all* night. On any given day, it is roughly in the same position relative to Earth (changing by only 1/28th of a rotation each day). When your location on Earth is facing the moon, you'll see it. When your location on Earth is facing *away* from the moon, you will not. At times when... | [
4
] | [
[]
] | [
"url"
] | [
"url"
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intkit | why are we going back to capsules for manned space flight? | I would have thought after the space shuttle we would move on the another space plane like the x-33 or dreamchaser. Why did we go back to capsules? | Technology | explainlikeimfive | [
"g49mwtr",
"g49n0xe"
] | [
"Capsules are the most efficient way to get people and things into space. They don't take up any more space or weight than they need to, and fit nicely on top of a rocket in an aerodynamic way. Airplane based designs are much much heavier, and almost all of that extra weight is purely so it can function as an aircr... | [
8
] | [
[],
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9b80ex | Why does water make materials more abrasive? | I was moving building sand at work and it wasn't that bad when it was dry bit when it started raining the sand became more abrasive and rough to the touch. Why is this? | Other | explainlikeimfive | [
"e511j0g"
] | [
"Water is very sticky due to the polar nature of its molecule, so it tends to cling to itself and to other surfaces. In the case of sand it would permeate all the empty spaces and cause all the individual sand grains to stick together. Therefore more resistance and more friction is experienced when you attempt to p... | [
9
] | [
[]
] | [
"url"
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89tjpw | How do we remember things and forget things? | Biology | explainlikeimfive | [
"dwtfpqh"
] | [
"I'll answer this from a neuronal perspective, since that sounds like the sort of thing you're asking. Memory is located throughout the brain, but it ultimately exists as connections between neurons. By changing the strength of connections between neurons, you can effectively strengthen or weaken memories. Memories... | [
4
] | [
[
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Neuron.svg/300px-Neuron.svg.png"
]
] | [
"url"
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"url"
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d3xjfz | how a headphones/earphones can still function after going thru both washer and dryer? | Technology | explainlikeimfive | [
"f05s8hg",
"f05sb14"
] | [
"Headphones are pretty simple objects: you’ve got two wires going in, a resistor or two inline, then a magnet, sitting behind a diaphragm. As long as the diaphragm doesn’t rip and the dryer gets the electrical contacts dry, everything should still work fine."
] | [
11
] | [
[],
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] | [
"url"
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"url"
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7tway5 | Why do washing machines have glass windows whereas the dishwashers don’t? | Technology | explainlikeimfive | [
"dtfpv3h"
] | [
"Washer machines has a load level, also, requires some supervision of the activity [i.e. Trying to open the door when water level is hight]. Dishwashers can't be \"overloaded\" neither visual inspection is needed."
] | [
4
] | [
[]
] | [
"url"
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jd9jov | Why is it we still get dozens of calls a day from scammers? Don’t we have the tech to tell a spoof number and prevent it from coming through? | Technology | explainlikeimfive | [
"g97efat",
"g96pcdr",
"g96htno"
] | [
"It's not a technical problem but a legal one. As long as it's legal this will keep happening. This problem hardly exists in the EU because there are strict laws about these kinds of things."
] | [
7
] | [
[],
[],
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ny8mnn | Why diseases get "stronger" at night? | Most times when i'm sick, i don't feel any symptoms at morning or noon, a commom cold for example won't show symptoms at morning but when the night falls, specially late at night, i get fever, clogged nose, coughing etc. Is it because the immunologic system is fighting the disease more at night, and the symptoms are th... | Biology | explainlikeimfive | [
"h1isez5",
"h1j83ic"
] | [
"Symptoms are the body’s method of fighting disease. They make us miserable, but they work when the disease is minor. Like a fever makes your body less hospitable. We have less stress hormones at night so our immune systems kick into action."
] | [
14
] | [
[],
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] | [
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ineqri | How do we know this is the most peaceful time across the world? What is this claim based on (evidence of war? Genocide? Interpersonal violence?)? | Other | explainlikeimfive | [
"g479v1j"
] | [
"Thanks to the Red Cross we have reasonably good statistics on the number of people, military and civilian, who have died due to armed conflict. Those numbers have been trending down. URL_0 ...of course, overall the 20th century was bloody as fuck because of two major instances of industrial war. Some of the optimi... | [
3
] | [
[
"https://ourworldindata.org/war-and-peace"
]
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"url"
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"url"
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ib2zsi | Why hasn’t the Titanic been completely crushed by the water pressure at the depth of the wreck site? | Physics | explainlikeimfive | [
"g1s9z0w"
] | [
"Water is a fluid, and fluids under pressure exert force in all directions. Since the *Titanic* is filled with high-pressure water inside and out, the water pressure on the outside of her walls is equal and opposite to the pressure on the inside. Therefore, the total force on the walls is zero. *Titanic* would only... | [
23
] | [
[]
] | [
"url"
] | [
"url"
] | |
o85qf6 | How do owners/creators of memes make money from them and how does a meme NFT buyer make money from their purchase? | Technology | explainlikeimfive | [
"h331z2k"
] | [
"Imagine you own a piece of land. How do you sell that land to someone else? You can't take the land and put it in a bag and give it to someone. Instead, you write on a piece of paper: I sells this land to Susan. If Susan needs to sell the land, she shows the paper to the buyer, then adds another sheet of paper tha... | [
15
] | [
[]
] | [
"url"
] | [
"url"
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a2unwr | How did the phrase “put down” come about for animal euthanasia? | Culture | explainlikeimfive | [
"eb1b246"
] | [
"Apart from the usual euphemistic language surrounding death, killing a largish animal like a cow or horse, literally puts them down onto the ground."
] | [
6
] | [
[]
] | [
"url"
] | [
"url"
] | |
6zanlh | How do extreamly high voltage powerline workers operate on live wires without getting killed? | I was browsing youtube when URL_0 shows up. looks cool so I click. that got me thinking, you can clearly see that the wire is live as when he almost touches the wires with that antenna and you can see the electricity jumping. He then procedes to touch and operate on the wire. How can he do that, and why does he make su... | Engineering | explainlikeimfive | [
"dmtsm2v",
"dmtsdsq"
] | [
"Workers on the high tension lines, **insulate** themselves from the ground and then attach to the line. This brings them up to the same voltage as the line. Electricity only flows from high voltage to low voltage so if the workers are the same voltage as the line, then electricity won't flow into them."
] | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
9cj3o9 | How does a circular rainbow occur? | Something like this: URL_0 | Physics | explainlikeimfive | [
"e5b3a6y",
"e5b3ryi"
] | [
"It is always circular. You just don't see the lower part of the circle in the \"classical\" rainbow, as it is covered up by ground."
] | [
12
] | [
[],
[
"https://en.wikipedia.org/wiki/Halo_(optical_phenomenon\\)",
"http://1.bp.blogspot.com/-OyYk_hGQzsc/TpCLYkUOssI/AAAAAAAAAM8/6XpiHnabV3w/s1600/rainbow-circle.jpg"
]
] | [
"url"
] | [
"url"
] |
c19bod | Why is preventing swelling important for healing injuries? | Biology | explainlikeimfive | [
"erboy2s"
] | [
"Swelling/inflammation is how our bodies keep us from using an injured body part. Obviously, we want to avoid using an injured body part so that it can rest during the healing period. Inflammation does \\*\\*not\\*\\* help the healing process, and our bodies very frequently go way overboard on the whole matter. We ... | [
9
] | [
[]
] | [
"url"
] | [
"url"
] | |
kay6zm | What makes honey non-turn-bad-able? | Chemistry | explainlikeimfive | [
"gfdegp0",
"gfdeels"
] | [
"High sugar content acts as a preservative (the same way canning fruit in syrup does). Microbes (like most cells) are bags of water with a membrane that balances the amount of \"free water\". Something like honey has very little \"free water\", so the water moves out of the microbe. But because the difference is so... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
cfcf7x | why do you need to bring your temperature down? | I read somewhere that the reason our temp rises when we are sick is to help out immune system. if so, why try to lower it | Biology | explainlikeimfive | [
"eu8ysdp",
"eu8zi4v",
"eu8yfcr",
"eu9407g"
] | [
"Up to a point, having a fever is a good thing when you're fighting an infection as in the case of sepsis (infection in the blood). Many pathogens don't fare well in even a degree or two of average raised temperature, while your body is much more resilient. It's still a pretty serious condition on its own, and seps... | [
68
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
5ydai1 | Why people rush to board an airplane? | Other | explainlikeimfive | [
"dep474a",
"dep4b58",
"dep4um2",
"dep5vbw",
"dep43iv",
"dep43q8"
] | [
"The space in the overhead bins is often scarce, and even when it is not, people often fill them inefficiently, keeping a jacket or something first. Most people do not want to check-in their carry-on and hence the rush to board the plane first."
] | [
14
] | [
[],
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
7ec6ps | How a music video is shot in slow motion, but the singer’s lips are synced with the audio | Other | explainlikeimfive | [
"dq3xlq8",
"dq3y3c0"
] | [
"Increase the song tempo, have artist lip sync, slow video. Words will be at correct speed, everything else will move in slow motion. It's a really cool effect, and not to hard to do, just some math to calculate the BPM's."
] | [
10
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
6cqqqq | The importance behind referencing works in specific styles. Is it really better than just writing down a website or book name? | Other | explainlikeimfive | [
"dhwqmxz",
"dhwov3j"
] | [
"Practically speaking, the 2 most important things about citations (both in text and in a list of references) are: 1) That you provide enough information that someone could easily find the source you're using. This means including article and journal titles, volume numbers and page numbers for journals, edition num... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
8sckbj | How does the underground ecosystem of a cemetery compare to that of a normal, untouched field of grass? | Do all of those caskets and bodies, along with the constant excavation, change the habitat for whichever insects or creatures live inside the ground at cemeteries? Does that type of environment bring new creatures that would not usually be there? | Biology | explainlikeimfive | [
"e0ydme3",
"e0yhlyt",
"e0z6adi",
"e0yqw31"
] | [
"Most modern graves place the coffin in a sealed vault, so there would be little impact to the environment, beyond having a bunch of concrete in the ground now. Even with vaults, bodies buried in a cemetery represent a tiny fraction of the ecosystem there and remain biologically active for a very short time. Having... | [
37
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
iblww5 | From where those little insects come out of nowhere when you, for example leave an apple not fully eaten | Biology | explainlikeimfive | [
"g1wllvp",
"g1wkhdt"
] | [
"I'm no biologist, but I do know that flies can smell decomposition from over a mile away. [Over 4 miles in the right conditions.]( URL_0 .)"
] | [
5
] | [
[
"https://www.thenakedscientists.com/articles/questions/how-far-can-flies-smell-food#:~:text=Seven%20kilometres%20is%20not%20only,rotting%20meat%20over%20long%20distances"
],
[]
] | [
"url"
] | [
"url"
] | |
bsm778 | How is a glass of wine everyday good for you? :) | Biology | explainlikeimfive | [
"eoocuru",
"eoob79f"
] | [
"It is not. There is proof to suggest that the antioxidants in wine are good for you. But with that said, current consensus is that *any* alcohol is bad for you, and for virtually all drinks, the downsides outweigh any upsides. Drinking is always bad and should be avoided for optimal health."
] | [
5
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
easyb3 | why when you shake up a closed salad, items such as cucumbers tend to group together, even if they are separated pre shake? | Physics | explainlikeimfive | [
"faxgs7d",
"fawzzc1"
] | [
"Weight. The heavier items will tend to group together from having roughly the same mass, shape, size etc."
] | [
5
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
6soaxj | How does showering get rid of radiation? | I just read that you can shower to rid yourself of any radiation if a nuclear attack were to happen, but how does showering get rid of radiation? | Biology | explainlikeimfive | [
"dle9mqj"
] | [
"Because the bomb irradiates dust and debris and kicks it into the atmosphere; when you shower you wash off radioactive dust that might be clinging to you."
] | [
22
] | [
[]
] | [
"url"
] | [
"url"
] |
dmj2kk | If sleep runs in 90min cycles, then how does a shorter nap help people? | Seems like a 40min nap is all I need sometimes. | Biology | explainlikeimfive | [
"f510tof"
] | [
"It doesn’t, not as much as a full sleep cycle. Just like a small snack of goldfish crackers is not going to replace a meal, but it might take the edge off your hunger for a few hours, and make you feel better temporarily."
] | [
4
] | [
[]
] | [
"url"
] | [
"url"
] |
8gbfvh | Why aren't you allowed have contact with an organ donor for years after the transplant? | Biology | explainlikeimfive | [
"dyab99x",
"dyaex1t",
"dyaignl",
"dybvef0"
] | [
"I'm actually in the middle of all my tests to donate one of my organs, so I had this conversation somewhat recently with my coordinator. It depends on the particular hospital and program you are using, but you absolutely can have contact between donor and recipient if both agree to it. The initial contact is organ... | [
194
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
dlm7eg | What makes honey unspoilable? | Chemistry | explainlikeimfive | [
"f4rrvro",
"f4rnmu0",
"f4rtog7",
"f4s3ny5",
"f4rqa4y",
"f4so1se"
] | [
"Because the sugar in honey is heavily concentrated, it has a low [Water Activity Level. ]( URL_0 ) Despite the fact that it contains water, it is effectively too dry for organisms to grow in it and it causes their cells to become dehydrated until they stop functioning. However, being dehydrated isn't necessarily f... | [
265
] | [
[
"https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/inspection-technical-guides/water-activity-aw-foods"
],
[],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
imc418 | How do we know ancient astronomers observed the supernova of the Crab Nebula in 1054 A.D.? | Other | explainlikeimfive | [
"g3yme6y",
"g3yp6k7"
] | [
"We have Chinese and Arabic sources that describe the event. I'm not sure about European sources. Edit: also ancient isn't really the right adjective here but that's besides the point."
] | [
13
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
kazyk7 | why does hydroxide have a charge? arent covalent compounds suppose to have no charge? | please dont go too deep im only 10th grade | Chemistry | explainlikeimfive | [
"gfdrj4z",
"gfdqci3"
] | [
"Atoms bond because they want more or fewer electrons than they start with. By sharing their electrons (covalent bond), O and H end up with more. This would give them a neutral charge, but it's not enough for them. OH wants one more electron, so they \"steal\" it from another atom. An extra electron gives them one ... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
brdrzf | How can an 2D animated movies or shows have multiple animators whilst maintaining a consistent art style? | I understand how you can have one person for background art, or one person for basic sketching and another for colouring etc, but surely this would take too long to animate with only a small group. | Other | explainlikeimfive | [
"eocrxci",
"eocqov9",
"eocsm7i",
"eocqqog"
] | [
"Professional animators are a talented bunch - they can draw in just about any style they'd like. For their own work, they may choose a unique style, but when they are part of a team, they'll work within the parameters set by the lead animator. It's much the same way a good studio musician can play a vareity of gen... | [
12
] | [
[],
[],
[
"http://cdn.collider.com/wp-content/uploads/2017/08/aladdin-jafar.jpg",
"https://www.factinate.com/wp-content/uploads/2017/03/FotoJet-16-2.png"
],
[]
] | [
"url"
] | [
"url"
] |
gn63zz | Where does the genetic information for fingerprints come from? | I mean like the DNA for fingerprints. Is it a mixture of mom/dad or is there something in our genetic code that randomizes it? Or am I completely mistaken and it's something else? | Biology | explainlikeimfive | [
"fr7sv1o"
] | [
"Fingerprints aren't genetic. Well, their existence is, but not the actual pattern - identical twins for example have different fingerprints. The pattern is simply formed by our development in the womb."
] | [
10
] | [
[]
] | [
"url"
] | [
"url"
] |
6lj3gr | Why does one get so tired after spending time in the sun? | Biology | explainlikeimfive | [
"dju93z6"
] | [
"Our metabolism and heart rate increase when it's hot, and our body works harder to regulate our body temperature. For instance, one thing it does is produce sweat to help cool down the body -- that requires energy. The more energy you spend, the more tired you feel."
] | [
7
] | [
[]
] | [
"url"
] | [
"url"
] | |
fq30yy | How do glasses and binoculars work? | How can you just bend glass and it fixes your vision, or how does glass makes everything seem closer or further with binoculars | Physics | explainlikeimfive | [
"floc77j",
"flofjl1"
] | [
"The curviture of the lenses bends light through refraction. Light travels slower through glass than air. Think of it like if you drive a car through a puddle. The tires that went through the puddle would slow down and cause the car to turn if you weren't holding onto the wheel. Same thing with refraction. This ben... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
mv2eww | Negative interest rate | What is negative interest rate ?? When a bank has to set negative interest rates?? Secondly is it good for the debters and bad for depositors?? | Economics | explainlikeimfive | [
"gv9kke2"
] | [
"[Negative Interest Rates]( URL_0 ): > ...occur when borrowers are credited interest rather than paying interest to lenders [...] With negative interest rates, central banks charge commercial banks on reserves in an effort to incentivize them to spend rather than hoard cash positions. That last bit is important. We... | [
8
] | [
[
"https://www.investopedia.com/terms/n/negative-interest-rate.asp"
]
] | [
"url"
] | [
"url"
] |
98lq36 | Could someone safely land in just a wing suit? Is there a maximum height of initial decent in which survival would be possible? What are some other factors that would increase or decrease the likelihood of surviving? | Physics | explainlikeimfive | [
"e4gyfig",
"e4gy6kh",
"e4gy622"
] | [
"Not exactly an explanation but it's definitely been done. Here's one where the guy landed on water: URL_0 There's another where a guy did it into a bunch of boxes so not quite as impressive."
] | [
5
] | [
[
"https://youtu.be/o2xmAWS4akE?t=104"
],
[],
[]
] | [
"url"
] | [
"url"
] | |
lr8ej9 | Why are antennas half a wavelength long? | Physics | explainlikeimfive | [
"goo20ee"
] | [
"Not all antennas are a half wavelength. A simple antenna is just a piece of wire or metal that is cut to resonate with the frequency. The frequency is inversely proportional to the wave length. Lower the frequency the longer the antenna, higher the frequency the shorter the antenna. An antenna cut to one wavelengt... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
hhm1ii | Why are clouds flat at the base of them? At times, it seems like they are resting on a surface, all at the same altitude, why? | Physics | explainlikeimfive | [
"fwau3hi",
"fwb4bu9"
] | [
"You are referring to cumulus clouds, the most common daytime clouds in the summer sky. Morning sunshine warms the ground, and most of that heat transfers into the air immediately above, forming a layer of warm air several hundred feet in depth. If the temperature of the heated layer surpasses a critical value, as ... | [
66
] | [
[
"https://www.chicagotribune.com/weather/ct-wea-0720-asktom-20150719-column.html"
],
[]
] | [
"url"
] | [
"url"
] | |
ftwupf | why does soda fizz a lot when you pour it into a glass, but sparkling water doesn’t? They’re both carbonated, is it just different because of the sugar? | Chemistry | explainlikeimfive | [
"fm9oz4k",
"fma7o7s",
"fma907r",
"fm9p3us",
"fmadx9b",
"fmagfcg",
"fmb8xfy",
"fmaotpz",
"fmadj4k",
"fmaf85y"
] | [
"Soda is filled with sucrose which disrupts the hydrogen bonds in the liquid. Alcohol, sugar and salt all play a role in weakening these bonds which opens more pathways for carbon dioxide to escape. That's why champagne loses its fizz quicker than sparkling water as well. Edit: Hi ELI5 community; my inbox has been ... | [
3134
] | [
[
"https://www.chemguide.co.uk/atoms/bonding/hbond.html",
"https://youtu.be/XczcDe7_sLE",
"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4175435/",
"https://socratic.org/questions/how-do-hydrogen-bonds-affect-solubility",
"https://youtu.be/Fot3m7kyLn4",
"https://youtu.be/NMSxuORKynI",
"ht... | [
"url"
] | [
"url"
] | |
7799pg | Why are some pimples filled with liquid goo and some with like a piece of goo? | Biology | explainlikeimfive | [
"dok384i",
"doki7pa",
"dok4ier",
"dokihvh",
"doklh7e",
"dok31db"
] | [
"clear goo is going to be mostly blood plasma, and white goo is pus or mostly white blood cells (they're dead after killing off the bacteria that got into your skin) \"safe\" is a relative word when you talk about squeezing them. the big problem with doing it is the pimple is there because that site was teeming wit... | [
1602
] | [
[],
[
"https://www.amazon.com/dp/B0002DMANU/ref=cm_sw_r_cp_apa_9ta6zb78C5FM"
],
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
5r8hwk | What were lobotomies supposed to cure, and how exactly were they performed? | I've always been curious about why exactly lobotomies were supposed to be helpful, but I've never really gotten a clear, concise answer. | Other | explainlikeimfive | [
"dd57m4p"
] | [
"Lobotomies were based on the theory that there are certain parts of the brain that cause certain psychological problems. What a lobotomy does is hope to cut away that piece of brain that causes the issue without Damaging or killing the patient. The patient was kept under local anaesthesia and with surgical tools y... | [
4
] | [
[]
] | [
"url"
] | [
"url"
] |
i6wj4i | How does the ZFS raid allow for just a small number of drives to be used for copies of data and guarantee that data won't be lost in case of failure? | What I mean is that according to linus tech tips, if you have five hard drives, you can dedicate one of them and it can guarantee that if any one drive fails, no data is lost. I just don't understand how that works. How come you don't need the same amount of backup storage as normal storage to guarantee that? How can i... | Technology | explainlikeimfive | [
"g0yg2xu"
] | [
"For a RAID setup with 5 hard drives and single parity, each block of data you store in the RAID array is divided into 4 parts. From these 4 parts, a 5th part called the parity information is calculated (see URL_0 for a non-ELI5 explanation of this step). If you lose any 1 of the 4 parts of your data, the remaining... | [
3
] | [
[
"https://blog.open-e.com/how-does-raid-5-work/"
]
] | [
"url"
] | [
"url"
] |
65hc4u | If water is more dense than oil, then how do you dilute oil with water? | Chemistry | explainlikeimfive | [
"dgaakkv"
] | [
"you don't really. oil and water don't mix, so you'll just end up with a mixture instead of a more dilute solution. you can thin oil by mixing it with a oil of a lower viscosity."
] | [
6
] | [
[]
] | [
"url"
] | [
"url"
] | |
mm6up5 | How exactly does soap clean our skin? | Chemistry | explainlikeimfive | [
"gtpj8hp",
"gtpjha2"
] | [
"Water is good at cleaning some things because those things interact with the water more favorably than they do your skin. When water washes over your skin that stuff binds to the water and leaves with it. However, there are other things that interact with your skin more favorably than water. these won't, for the m... | [
6
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
lklicd | how are people able to hack into webcams and spy on other people? | Technology | explainlikeimfive | [
"gnkfd39"
] | [
"Because the people who set them up, don't use secure passwords, and so when a hacker finds the device they just try commonly used passwords, and get in. People are warned over and over to use secure passwords, but they don't because its hard to remember. Also, many companies have 2 factor authentication, but peopl... | [
8
] | [
[]
] | [
"url"
] | [
"url"
] | |
k335k0 | how can our body accurately measure its own temperature for sweating and other reactions? | Biology | explainlikeimfive | [
"gdz8sqy"
] | [
"To make it simple, imagine that there are sensors (nerves) this guys can feel what it's going on the outside and inside, so they send the info to the brain and he makes the decition on what to do, if there is to much hot or cold. Edit cuz spanish native, autocorect some words."
] | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
dtpt9r | How would a country prepare for inflation and how do they keep the value of their money from crashing once they receive said money? | I was watching crash course world history and learned about how the Spanish economy crashed in the 16th century because "they did not prepare for inflation" after the discovery of a mountain full of silver. How would one prepare for inflation and how would they keep the value of their money up once they received said m... | Economics | explainlikeimfive | [
"f6y3d31"
] | [
"Currency is a representation of wealth that make is easier to trade. So you have a supply and demand where demand is the wealth, because the more wealth we have the more we want to trade, and currency is the supply because we need it to trade. So if you increase your currency, that mean there is more supply than d... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] |
n7xpj4 | How does orbital dynamics work? | Mathematics | explainlikeimfive | [
"gxfa3bm"
] | [
"Things in space have an attractive force called gravity. In contrast to celebrities, things with more mass have a more attractive force. Between two bodies, based on their relative mass, there’s a center of gravity. Those two bodies orbit around that one point. When considering things with divergent mass, it appea... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
o2i4xf | Why do we have powdered sugar not powdered salt? | Other | explainlikeimfive | [
"h26k5gi",
"h26kb65"
] | [
"Flour Salt, also called popcorn salt, is the powdered variant of salt crystal used by humans and looks very similar to powdered sugar when put in a bowl or on a plate. It is used for coating things in salt (such as popcorn) or when you want salt to dissolve very quickly in something and may not have time to heat i... | [
14
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
jv1nby | What is the difference between Data Warehouse and Data Lake? | Technology | explainlikeimfive | [
"gcgye66"
] | [
"Data Lake = throwing all your toys into a big pile in a room in your house. Data Warehouse = Putting all your toys in a neat and orderly fashion in a room, labeled and ready for use. Toys that don’t fit how things are organized are never brought into the room."
] | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
5u6qtm | What occurs in America if the President is found to have won the election due to outside (of the US) interference? | Other | explainlikeimfive | [
"ddrr6t8",
"ddrqth0",
"ddrr00n"
] | [
"Nothing. The President can only be impeached if he himself has committed \"treason, bribery, [or] other high crimes and misdemeanors\". Being the beneficiary of the crimes of some other foreign government is not grounds for impeachment so long as they were acting without his knowledge or consent. If, however, it c... | [
66
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
e4odad | why is the sky bright at night when snow is coming? | I am wondering why the sky is bright when it's going to snow. I tried to find the answer, but all I can find is stuff explaining why it's bright when there's snow on the ground or when snow is falling. I understand the snow reflects light (i'm pretty sharp for 5 lol), but I want to know why the sky is bright at night w... | Physics | explainlikeimfive | [
"f9dw74i",
"f9em3il"
] | [
"It's possible you have a lot of light pollution in your area. Keep an eye on the sky at the same time of night when rain is approaching or even if you have just have dense cloud cover. Where I am it's actually easier to see on a cloudy night compared to a clear night because the of the city lights reflecting off t... | [
11
] | [
[],
[]
] | [
"url"
] | [
"url"
] |
7vbi1h | NFL followers, why are there so many people on the sideline while the game is being played? What is their role? Novice at NFL here. | Other | explainlikeimfive | [
"dtqzt3i"
] | [
"Media people, cameramen, sound people, the other 80odd players not on the field, the coaching staff, the athletic trainer staff, the medical team, NFL officiating crew, security... Add it all up and you usually have several hundred people on the sideline of a typical NFL game. It takes a lot of people to make that... | [
5
] | [
[]
] | [
"url"
] | [
"url"
] | |
8fiobq | How did we create non biodegradable things like plastic from what I'd assume is biodegradable materials? | Chemistry | explainlikeimfive | [
"dy3xqkl",
"dy3vkpy",
"dy4312a"
] | [
"Plastics have properties which make them resistant to biodegradation. Firstly, plastics are water resistant. Without moisture, bacteria/fungi cannot grow on it. Also, any digestive enzymes released by these organisms will be repelled from the surface. Secondly, producing plastics is very energy-inefficient compare... | [
57
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
ims9mk | Why is there a separate bin for recycling, but it is tossed into the garbage truck with the regular trash? | Other | explainlikeimfive | [
"g42m5rt",
"g42l1qb",
"g42i34x",
"g42iz5w"
] | [
"A lot of trash centers have what is called single stream recycling. So all types of recyclables go in together. And most trash centers separate recyclables because they can earn money from them. Until a few years ago when the world kinda stopped recycling. It's not really China's fault, but nobody is really steppi... | [
6
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
mn5trs | Why do we enjoy having blankets on us/need them to sleep? | Biology | explainlikeimfive | [
"gtvnixc",
"gtvm3iw",
"gtvr7kc"
] | [
"Using a blanket helps us to deal with our lower nightly core body temperatures. It also increases the serotonin and melatonin levels in our brain which helps relax us and fall asleep. Our circadian rhythm – that's our natural sleep rhythm – is a huge driver for our sleep"
] | [
13
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] | |
6mwngk | How does an already established city just build an underground subway system? | Engineering | explainlikeimfive | [
"dk4z1iv"
] | [
"There's a variety of techniques, but most modern cities use deep tunnel boring now which uses specially designed machines to dig the tunnels underneath everything else. This avoids most existing infrastructure and modern escalators and elevators mitigate the issue of getting people down so deep underground. Older ... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
e4dwv6 | How do both fusion and fission bombs create an exothermic reaction? | Chemistry | explainlikeimfive | [
"f99c9ak",
"f99cif2"
] | [
"Both fusion and fission can either require or release energy, it simply depends on which elements are being fused / fissioned. Lighter elements are easier to fuse together than to break apart, while heavier elements are easier to break apart than to fuse together. [This chart]( URL_0 ) demonstrates this."
] | [
13
] | [
[
"https://i.stack.imgur.com/PG3WB.gif"
],
[]
] | [
"url"
] | [
"url"
] | |
j1h8qs | How are news stations able to project which candidate will win a state after only counting 5% of the votes? | Mathematics | explainlikeimfive | [
"g6z6viw",
"g6zemsb"
] | [
"They compare it to the pre-election polls, and they do exit polls. If those two unofficial polls indicate a clear winner, and the 5% of votes counted align with those unofficial polls, then they feel safe calling the state. It's not official by any means, and no news station would ever call a state before polls cl... | [
9
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
6gsjba | What is the difference between a burka, niqab and hijab? and why do some women choose to wear one over the others? | Culture | explainlikeimfive | [
"disp4ce",
"disp9q3",
"disthwe"
] | [
"Burka = Head to toe cover, including mesh over eyes Niqab = Head to toe veil, eyes show Hijab = Head cover, worn in addition to clothes. [see]( URL_0 )"
] | [
15
] | [
[
"http://www.abc.net.au/cm/lb/5785816/data/what-are-the-differences-between-the-burka%2C-niqab-and-hijab-data.jpg"
],
[],
[]
] | [
"url"
] | [
"url"
] | |
9sulri | How does ESP and crystal ball psychic readings work? | Other | explainlikeimfive | [
"e8rl6xc",
"e8rky3x",
"e8rmbfa",
"e8rsudp",
"e8rs3ku"
] | [
"Psychics use a technique known as cold reading. They watch to see how the mark reacts as they make vague pronouncements, then they get more specific as they discover what the mark wants to hear. The mark wants to be fooled which makes the process easier."
] | [
25
] | [
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/One_Million_Dollar_Paranormal_Challenge",
"https://www.humintell.com/"
]
] | [
"url"
] | [
"url"
] | |
9jjk9y | Why is the Pledge of Allegiance allowed in public schools if it includes the phrase “under God”? | Sure, it’s optional in some schools, but various supreme court cases have claimed that OPTIONAL religious activities (praying, etc.) are also not allowed in public schools. Why is the Pledge an exception? | Other | explainlikeimfive | [
"e6s0j98",
"e6s2urv",
"e6rzuaa"
] | [
"Okay there’s a couple ways I know how to answer this. Ask if it’s not enough. It was written without the statement, but in 1952 it was added (at least by my knowledge) in response to the Communist threat in the 1950s. Anti-Communists and evangelicals pushed the idea that god could be a banner to rally around again... | [
15
] | [
[],
[],
[]
] | [
"url"
] | [
"url"
] |
da66um | Why in older animated movies are objects that characters interact with more pronounced than other objects in the scene? | Technology | explainlikeimfive | [
"f1ngwn3"
] | [
"Older animation used painted backgrounds that were larger than the animated frame (called a cell) to make it easier to animate the whole film. Individual animation cells were then drawn on transparent sheets. When a branch (or other object) changes from just being a part of the background to being part of the anim... | [
15
] | [
[]
] | [
"url"
] | [
"url"
] | |
6xb0l9 | Take away game | My math teacher and I played a take away game that I've never really heard of, but I'm willing to bet some of the community has. Say you have N amount of sticks, you and another player have to take away sticks from the pile but can only draw 1-3 sticks at a time. The player that draws the last stick(s) wins. No one has... | Mathematics | explainlikeimfive | [
"dmejr5c",
"dmerf1m"
] | [
"The game is solved (as in a perfect strategy is known). Depending on the number of sticks in the initial pile either the first player will always win, or never win if both players play perfectly. [You're looking for the Nim game, or the subtraction game]( URL_0 )"
] | [
7
] | [
[
"https://en.wikipedia.org/wiki/Nim#The_subtraction_game_S.281.2C_2.2C_._._..2C_k.29"
],
[]
] | [
"url"
] | [
"url"
] |
b6cadm | The difference between the degrees and the warm/cold settings on a split system air-conditioner. | Long time lurker, first time poster to ELI5. Apologies if I haven't titled this correctly. & #x200B; I am working in a small office today and we have set the air-conditioner to warm and 22C. But my co-worker and I questioned what is the difference between 22C warm and 22C cold. We just thought 22C is just 22C. | Technology | explainlikeimfive | [
"ejjf67j"
] | [
"Warm=keeping room temp above set temp Cool=keeping room temp below set temp The temp you set the thermostat to isn't necessarily going to be the room temp, it's just the temp that activates the system."
] | [
7
] | [
[]
] | [
"url"
] | [
"url"
] |
fryuxi | If oxygen is a part of water (H2O) and we need O2 to breathe, could we combine 2 molecules of water, separate it and breathe it? Do we even have that technology? | Chemistry | explainlikeimfive | [
"flyie3p"
] | [
"It's called electrolysis and we use it all the time. All the process requires is electricity, water, and a few parts. Nuclear Submarines for example use this process to generate Hydrogen for Fuel and Oxygen to breath from salt water. The catch is Electrolysis requires a fair amount of electricity so it isn't pract... | [
16
] | [
[]
] | [
"url"
] | [
"url"
] | |
5yi3nj | How do our vocal cords create a voice that is different from everyone else's? How is the sound of our voice determined (aside from the obvious answer of our genes)? | Biology | explainlikeimfive | [
"deqaw5k"
] | [
"It's controlled by our brains, including parts of the brain associated with physical/motion control, which we don't consciously think about and can't 100% control without practice. This is similar to how we naturally walk a bit different from other people, we can control our gait but usually don't think about it. ... | [
3
] | [
[]
] | [
"url"
] | [
"url"
] | |
6xyhhh | What is a colour, I know what a colour is but, what makes a colour a colour? For instance why is a white piece of paper different to a black piece of paper to make it black? | Physics | explainlikeimfive | [
"dmjejml"
] | [
"Colour is what your eye sees in response to different frequencies of light. Things have different colours because they absorb all of the colours except the one you see, which is reflected at you."
] | [
8
] | [
[]
] | [
"url"
] | [
"url"
] | |
mdwgsb | How Do Hearing Aids Work? | Engineering | explainlikeimfive | [
"gsbsq6k",
"gsc83oi"
] | [
"They have a microphone that picks up sound, amplifies it depending on the criteria set by the audiologist and then relays that to the wearers ear via a small speaker. The criteria for amplification is defined based on the results of a hearing test, so that only frequency bands that the user has difficulty hearing ... | [
5
] | [
[],
[]
] | [
"url"
] | [
"url"
] | |
f48hez | How do induction cooking work | I watched my mom cooked food with the induction cooktop several times but please explain how does it work, thanks | Technology | explainlikeimfive | [
"fhopo04",
"fhophxk",
"fhp9z4m",
"fhouy1j"
] | [
"Electrical friction essentially. Create a changing magnetic field under a metal pot. The electrons in the pot see the magnetic field and try to line up in it. The field keeps moving though and the electrons can’t keep up. They get dragged a bit and give off heat. Do this process rapidly and frequently enough and y... | [
50
] | [
[],
[],
[],
[]
] | [
"url"
] | [
"url"
] |
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