q_id stringlengths 6 6 | title stringlengths 4 294 | selftext stringlengths 0 2.48k | category stringclasses 1
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63ov95 | What does it mean to unlock your phone to another service provider? And why, depending on the brand, does it cost so much and take so long? | Technology | explainlikeimfive | {
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"dfvtlny",
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"text": [
"Most phones are *capable* of talking to other carriers that use the same networking technology. For example, in the USA, AT & T T-Mobile and I think a couple others all use the same GSM system. However, if you buy a phone through one of those carriers, th... | [
"url"
] | [
"url"
] | |
63r9xt | Why do some sites restrict how secure my password can be? (i.e. no symbols, no capital letters, etc.) | Technology | explainlikeimfive | {
"a_id": [
"dfwec31"
],
"text": [
"At least in some cases it is due to legacy systems that don't support better passwords running in the backend. Legacy software is old software, for which oftentimes there is nobody around who understands how it works. Therefore it is seen as impractical to change it."
... | [
"url"
] | [
"url"
] | |
63rhk3 | Why do CPUs have multiple cores, why not just one super core? | Technology | explainlikeimfive | {
"a_id": [
"dfwg714",
"dfwfeoa",
"dfwgxtt"
],
"text": [
"because one super core is not possible. /u/Pnuttn's analogy is pretty good. There are lots of cases where it would seemingly be better if they could just get one person or *thing* to do *all* of the work, but it's simply not possible. Inste... | [
"url"
] | [
"url"
] | |
63ry8i | What are the actual commands for keys on a computer keyboard? | Technology | explainlikeimfive | {
"a_id": [
"dfwlqnp",
"dfwo2m3"
],
"text": [
"The keyboard utilizes a keyboard matrix circuit to enumerate each key. When pressed, a microcontroller encodes the key press event into a USB data packet and sends the signal down the wire. The USB controller in your computer buffers the signal and sends ... | [
"url"
] | [
"url"
] | |
63rzig | What happens when websites/servers go down for maintenance? | I've always wondered what the staff are usually looking for during this period. Are they looking for cache/bugs etc? Or do they change some sort of code etc they want to implement? | Technology | explainlikeimfive | {
"a_id": [
"dfwk01m"
],
"text": [
"also alot of times its not the actual computer that goes down but rather just the piece of software that is doing the job. be it due to upgrades, patches or reconfigurations of said software that mostly requieres the software to be restarted or even terminated while in ... | [
"url"
] | [
"url"
] |
63t635 | How do online retailers such as Amazon and Ebay confirm the legitimacy of their luxury items? | Technology | explainlikeimfive | {
"a_id": [
"dfwz664",
"dfwz7t4",
"dfwzm2x"
],
"text": [
"In short they don't. They're just a middle man. Some of the sellers on those sites depend on their reputation. The others can use escrow or just wait for someone who doesn't care. Others, for very high end and rare items, can use escrow. Th... | [
"url"
] | [
"url"
] | |
63tq8x | if my camera has 15 megapixels, why can't it shoot 15 MP video? | Technology | explainlikeimfive | {
"a_id": [
"dfwwco9",
"dfwzc9n"
],
"text": [
"The way a CCD works is that every pixel will work as both a photo sensor and a tiny memory that holds one value. So when you close the shutter the content of the image is stored on the CCD itself. However then comes the hard job of dumping the content of ... | [
"url"
] | [
"url"
] | |
63tzr2 | The implications for police and law enforcement with the decision to allow the sale of our internet histories | Technology | explainlikeimfive | {
"a_id": [
"dfwy8ne"
],
"text": [
"No implication. You can't buy individual people's internet histories, you can only buy anonymous data sorted by geographic region. Like 'people in zip code 90312 visited URL_0 12 million times.'"
],
"score": [
3
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"text_urls": [
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"reddit.com"
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63u2jq | Why is there no optical video cable out yet? | There's audio but why not video or both like and HDMI cable. | Technology | explainlikeimfive | {
"a_id": [
"dfx08al"
],
"text": [
"I think the better question is why would you want an optical video cable? I don't see any upside. HDMI is perfectly capable of carrying video and audio signals and is the de-facto standard for connecting digital AV equipment these days."
],
"score": [
3
],
"... | [
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63ug3d | Why aren't there self-driving trains even though they should be easier to make than self-driving cars? | Technology | explainlikeimfive | {
"a_id": [
"dfx1ysb"
],
"text": [
"There are self driving trains. Most subway trains are automated. The conductor is only there to pull an emergency switch."
],
"score": [
7
],
"text_urls": [
[]
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} | [
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640hsq | how come my phone can act as a hotspot for mobile internet but not wifi | Technology | explainlikeimfive | {
"a_id": [
"dfydr35"
],
"text": [
"Effectively, what you're talking about there is using your phone as a type of router - which is pretty much what it does when it's in use as a hotspot. A router transfers traffic between two or more network interfaces - in the case of your phone as a hotspot, it uses th... | [
"url"
] | [
"url"
] | |
640rtz | Is the Back-end same for website,desktop web applications(antivirus software for example) and mobile applications(Instagram for example) | Hello,the back-end of a website is a collection of files(If I am not wrong).Is it the same for desktop web applications(like antivirus software like Kaspersky) and Mobile apps(like Whatsapp/Instagram) too? Excuse my english and Techie knowledge,I'm an adult noob. | Technology | explainlikeimfive | {
"a_id": [
"dfygdln"
],
"text": [
"generally yes For something like a website, the backend is generally one system. and the front end is designed to function different based on resolution / platform. however for something like kaspersky there may be various levels of back end system. in that you share th... | [
"url"
] | [
"url"
] |
640xv9 | Why are androids apparently better for treating autism than fellow human beings? | I've been seeing a lot of news about androids being applied for treating children with social disorders like autism (I can send a few sources on request) and while I understand that is likely just scientists advertising a small subset of an android's potential to garner more funding, I don't really understand what it i... | Technology | explainlikeimfive | {
"a_id": [
"dfyid85",
"dfyjwrk"
],
"text": [
"Robots have infinite patience, they can do the same thing over and over indefinitely. Autistic people are sensitive to changes in routine or procedure, and robots don't accidentally do that. Robots aren't replacing psychiatrists, but giving them more pati... | [
"url"
] | [
"url"
] |
641hf8 | Why hasn't simple text modifications like italics or bold print been implemented in mobile phone texting? | It seems silly that now, where everyone has a mini computer in their pocket, I can't make a word I'm trying to emphasize over text italic. Is there some sort of restriction because of the infrastructure texting was built on? | Technology | explainlikeimfive | {
"a_id": [
"dfyneb6"
],
"text": [
"> Is there some sort of restriction because of the infrastructure texting was built on? Yes. Text messages have a standard amount of data they can use and that data doesn't have enough space in it to allow you to encode extra information like italics or bold etc. It wou... | [
"url"
] | [
"url"
] |
641sb3 | Why are residential solar panels common, but not wind turbines? Or water wheels for people who live by rivers? | Technology | explainlikeimfive | {
"a_id": [
"dfyq73s",
"dfypvza"
],
"text": [
"You can buy them, but they are usually quite expensive. After all, they need to be durable in order to run for years. But the real problem is that ground level wind is a lot weaker than at the altitude that real wind turbines are positioned, so you're not... | [
"url"
] | [
"url"
] | |
6424as | This image of a Tomahawk Missile before and during detonation. | [Link]( URL_0 ) Why is the plane on fire before it appears the explosion has reached it? | Technology | explainlikeimfive | {
"a_id": [
"dfysjcd",
"dfyst2o",
"dfysroj"
],
"text": [
"The thermal pulse moves *much* faster than the supersonic blast wave and fireball. In other words, because it's so close it was subjected to an incredible amount of heat and burst into flames. Moments later it would be blasted apart by the ... | [
"url"
] | [
"url"
] |
644vao | What happens if you turn your PC off during an update when it says to not turn off your PC? | Technology | explainlikeimfive | {
"a_id": [
"dfzfvxf",
"dfzfnni"
],
"text": [
"When a computer is applying an update, it is rewriting some critical system files that contain instructions for it's basic operations. Imagine if you are writing something and someone bumps your hand or steals your paper. It would mess up what you are wri... | [
"url"
] | [
"url"
] | |
646h9o | Why can only one app at a time use my camera in windows? | Technology | explainlikeimfive | {
"a_id": [
"dfzsqgf"
],
"text": [
"No fundamental reason. Software such as [ManyCam]( URL_0 ) lets you do this, as well as the opposite (combining several cameras into one big supercamera source). It's just not included free with Windows because it's not a very popular feature."
],
"score": [
3
... | [
"url"
] | [
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647bb1 | Why do websites use infinite scrolling? | Technology | explainlikeimfive | {
"a_id": [
"dfzx1kk"
],
"text": [
"It's better for the user experience and keeping the user on the site. Repeatedly having to click and move your mouse on every page is annoying. Just scrolling to then automatically load more content is quicker and more convenient, and also encourages the user to stay on... | [
"url"
] | [
"url"
] | |
647kp3 | What is the difference between Intel's i3, i5 and i7 processors? | If they were all the same clock speed, for example, what would be the differences? *edit: I don't know the correct terminology. By clock speed I meant, say they are all 2.0GHz, for sake of argument. | Technology | explainlikeimfive | {
"a_id": [
"dg04soq",
"dfzz64k"
],
"text": [
"Celeron, Pentium, and Core i3/5/7 are all marketing brand names by Intel. They are not guaranteed to relate to any particular hardware specification or performance. In particular a 'Core i5' in an ultra-slim laptop will usually be lower performance than a... | [
"url"
] | [
"url"
] |
647xs8 | Why before USB-C technologies like HDMI, USB-A/C, etc. weren't all manufactured to work with the same port? If not at least by one company who had the patents to do so? | Edit: I meant "USB-A/B, etc..." I really am 5, apparently. | Technology | explainlikeimfive | {
"a_id": [
"dg07zt1"
],
"text": [
"That situation is historically grown: We started with non-digital technology where different usecases required different connectors. Usually you only needed one type of connector per use, as you e.g. had only one printer. If you needed more of a type, you could use exte... | [
"url"
] | [
"url"
] |
6491ek | Why do automotive map updates cost so much? | I am talking about the navigation map UPDATEs. Honda's are like $150. This frosts my gord. Why does this cost this much? | Technology | explainlikeimfive | {
"a_id": [
"dg0aetd"
],
"text": [
"This has two parts: 1. Keeping the maps updated is expensive. 2. If you have the navigation of a certain brand, you are forced to buy for that type of device. Which means they can dictate the prices and you are either forced to pay them or live with an outdated map. In ... | [
"url"
] | [
"url"
] |
64alvs | How do traffic lights sense approaching cars? | Technology | explainlikeimfive | {
"a_id": [
"dg0o5be",
"dg0xjur"
],
"text": [
"Some do not, older traffic lights were either operated manually or put on an automatic timer that would switch the lights in a given pattern. As the years passed on we've developed newer technology and you'll see some of them implimented on highways natio... | [
"url"
] | [
"url"
] | |
64b36b | How can imgur keep images forever? | Technology | explainlikeimfive | {
"a_id": [
"dg0sbb6"
],
"text": [
"Cost? Not very high at all. Hell, a 1 terabyte hard drive cost about $50. A quick Google search says about 310,000 pics per 1 TB. 100 TB will hold about 3 billion pics. Which at normal cost of 100 1 TB. Hard drives would cost 5k. Now if you bought all that at whole sale... | [
"url"
] | [
"url"
] | |
64cko7 | Why CPU clock speeds havent seen major increase even tough we made major improvements on nm scale? | It's always around 2.8GHZ to 3.5 GHZ. Why there are no 10GHZ or so? Please explain thank you :) | Technology | explainlikeimfive | {
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"dg133ql",
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],
"text": [
"You cannot cheat physics. Every CPU has a clock that lets it synchronize its internal workings. The higher the clock the more operations can the proccesing unit perform in a unit of time. This value cannot be infinite because... | [
"url"
] | [
"url"
] |
64cl83 | Why do films from the 70s-early 00s look so much better, richer than ones produced today? | I do not know the technical terms for what I'm describing, but it seems that film and TV shot in the 70s-90s look so much better than the ones shot today...what's the reason behind this? | Technology | explainlikeimfive | {
"a_id": [
"dg1348l",
"dg1corz"
],
"text": [
"I don't know if I can identify one thing that makes twenty or thirty years of movies similar to each other, but nowadays they really love to do color correction on everything. A few examples of this done obviously for artistic reasons are *The Matrix* tri... | [
"url"
] | [
"url"
] |
64cv4u | Why are cell towers so big? | How are cell phones able to upload data to a cell tower when the antenna is smaller than my thumb, whereas mobile towers are huge in comparison? | Technology | explainlikeimfive | {
"a_id": [
"dg15imh"
],
"text": [
"Hi :-) - The tower's antennas are on a higher location in order to be able to service a larger area. - The antenna transmits at higher power than your phone. Especially for data, it's more important to receive than sending. E.g. with HSDPA / 3G+, it's 3.6-13.98 Mbit/s f... | [
"url"
] | [
"url"
] |
64d6lf | Why do people think the moon landing was faked? | Technology | explainlikeimfive | {
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"dg1f527",
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],
"text": [
"There is no concrete \"answer\" to this question. But the best explanation I've heard for this denial of established facts is that it's... | [
"url"
] | [
"url"
] | |
64e0ht | Why can we get electricity from wind on earth, but planes do not have small wind turbines to lower gas and electric costs? | Technology | explainlikeimfive | {
"a_id": [
"dg1emaj",
"dg1dtvm",
"dg1ecdn",
"dg1e02t",
"dg1l7p3",
"dg1tj91"
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"text": [
"This has been answered well by other people, and as has been pointed out, it's all to do with aerodynamics and efficiency, but there is something they havn't mentioned: Some aircraft actually DO ... | [
"url"
] | [
"url"
] | |
64ev6h | Why did older CRT monitors for computers typically work in a black background with green text? | Why didn't they use white on black since that would give them a higher contrast? | Technology | explainlikeimfive | {
"a_id": [
"dg1r7go",
"dg1lwpn",
"dg1lw53"
],
"text": [
"[Green P1 phosphors ]( URL_0 ) had long persistence (decay time). Amber P3 was medium persistence. White P4 was faster. Longer persistence meant your video could be at a lower frame rate without flicker. Nobody was watching videos or playin... | [
"url"
] | [
"url"
] |
64h76k | Why do video games crash and stop working, rather than produce an error and move on? | For example, if the game is told to do something with an object that doesn't exist, why does the entire game need to stop? Couldn't it function without moving the non-existent object? | Technology | explainlikeimfive | {
"a_id": [
"dg25pza",
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"text": [
"I'm speaking from a general programming standpoint, not as a game dev, so my information may be inaccurate. That being said: Programs that crash do so because they try to execute an impossible action. Either di... | [
"url"
] | [
"url"
] |
64i3ou | How do they measure direction while in space since there's no north, south, east, or west? | And if they use a 360 heading, what is the center point and what about lateral movements? | Technology | explainlikeimfive | {
"a_id": [
"dg2c8xd"
],
"text": [
"It's by using the 360 degree twice. For instance; if you are in a spaceship heading directly forward, you would be on a heading of \"Zero point Zero\". If you wanted to travel to something on your immediate right, it would be 90 point zero. Of you wanted to go to your i... | [
"url"
] | [
"url"
] |
64jk0h | Why is a telecom/ISP selling your usage information any worse than Reddit doing so? | Technology | explainlikeimfive | {
"a_id": [
"dg2l0pu",
"dg2leb9"
],
"text": [
"I don't have to go to reddit. If I want internet, I have to buy it from someone who is then going to sell my information",
"Instead of the internet pretend you're sending information via the post office. You agree to correspond with Reddit and mail th... | [
"url"
] | [
"url"
] | |
64kt9p | Why AC ads show mostly 24° C on their display? | Technology | explainlikeimfive | {
"a_id": [
"dg2xb2d",
"dg303cc",
"dg2w8r6"
],
"text": [
"Are you from a warmer climate? 24 degrees is considered the highest 'comfortable' range for people. If you live in a warm area, the ads will suggest the highest livable temperature to seem relatable.",
"The cooling temperature for peak ... | [
"url"
] | [
"url"
] | |
64lbf5 | What's going on with LastPass? | Technology | explainlikeimfive | {
"a_id": [
"dg34uwi",
"dg30nuu"
],
"text": [
"One of the worlds most respected security researchers (@taviso) took a look at their product and found some vulnerabilities. He responsibly disclosed them, and allowed LP to fix them before releasing the bugs publicly. URL_0 The issues were resolved.",
... | [
"url"
] | [
"url"
] | |
64lfab | For most websites, when you enter your login info incorrectly, why can't the website tell you specifically whether the username or the password is incorrect? | It usually only tells you "your username or password is incorrect." | Technology | explainlikeimfive | {
"a_id": [
"dg3o774",
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"dg3u4ai",
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"dg365zh",
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"dg34ovs",
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"dg3rdmx",
"dg44lis"
],
"text": [
"For better security. Any information no matte... | [
"url"
] | [
"url"
] |
64na00 | why children can't use vr headsets like the rift or psvr. | Technology | explainlikeimfive | {
"a_id": [
"dg3i1yj",
"dg3i4f9",
"dg3paps"
],
"text": [
"Aside from the \"small necks bearing a weighted helmet\"-part... VR changes a person's spatial coordination - that ability to just *know* where your limbs are without looking at them. From touching your nose to just navigating around furnit... | [
"url"
] | [
"url"
] | |
64nw81 | Why do most software programs (web browsers, for example) display an error code that you have to look up instead of just telling you the error? | Technology | explainlikeimfive | {
"a_id": [
"dg3o15z",
"dg47vre",
"dg3pmzc",
"dg3vx8p",
"dg3z9bq"
],
"text": [
"The use of error codes is considered a good practice in programming, because it allows different errors to be strictly defined and distinguished from one another. The name and explanation of that error can then... | [
"url"
] | [
"url"
] | |
64oinn | How does YouTube keep up with storage space if there are roughly 67 YEARS (300h/min) worth of videos uploaded every day? | Technology | explainlikeimfive | {
"a_id": [
"dg3tg80",
"dg3xuqh",
"dg3tlme",
"dg3x906",
"dg477sa",
"dg3t3dw"
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"text": [
"[Big warehouses filled with hard drives]( URL_1 ). A lot of that content being uploaded isn't great quality and so it doesn't take up much space. The very high quality videos are compressed to ta... | [
"url"
] | [
"url"
] | |
64q6uh | Why do LCD screens go dark/light when looked at from different angles | Why do LCD/LED screens go dark/light or colours invert when looked at from different angles? | Technology | explainlikeimfive | {
"a_id": [
"dg450q5"
],
"text": [
"When the light exists the screen it comes out at specific angles in order to form the picture. Observing the screen from a nonoptimal angle changes the amount of light that hits your eyes, causing the screen to appear darker or miscolored. The pixels from the LCD screen... | [
"url"
] | [
"url"
] |
64qr3j | what is "A computer", what on an electronic level makes electronics into a "computer" can anyone build a computer? could someone build a computer without using prefabricated components in 2017? | Technology | explainlikeimfive | {
"a_id": [
"dg4c3nk"
],
"text": [
"First, let's establish something a lot of people get wrong: in electric circuits, negative flows to positive. Electrons are negatively charged, and the negative side has an excess of electrons, the positive side has a deficit of electrons. The reason everyone gets this ... | [
"url"
] | [
"url"
] | |
64qyud | What was added to black and white cameras to show color? | Technology | explainlikeimfive | {
"a_id": [
"dg4bpzv"
],
"text": [
"Early film consisted of a thin coating of gelatin mixed with silver bromide or silver chloride. These chemicals, it was later found, separate into individual ions under exposure to blue-UV light. This chemical change can be exploited in the developing process by adding ... | [
"url"
] | [
"url"
] | |
64rpap | Why can't my phone's camera take pictures of my monitor in normal colour? | Technology | explainlikeimfive | {
"a_id": [
"dg4h632"
],
"text": [
"Because your monitor's color is a trick. If you grab a magnifier and look closely, each pixel is a red, green, and blue light. The dots are small enough that your brain blends them together, but a phone camera uses a CMOS sensor that isolates each pixel in the frame of ... | [
"url"
] | [
"url"
] | |
64shru | How is using a VPN for anonymity different than using a VPN for remote access to a network? | I see some people subscribing to a VPN service to remain anonymous online, but then I also here people say " I am VPNing into work so I can work from home". Is this the same thing or are there different types of VPNs? | Technology | explainlikeimfive | {
"a_id": [
"dg4nglh"
],
"text": [
"It's essentially the same, with a different purpose. The way the internet works is there's only so many public, internet routable IPv4 addresses. They are predefined. There wouldn't be enough of them if all the corporations and private devices to have their own IP addre... | [
"url"
] | [
"url"
] |
64sk4v | Why is there different Netflix content for different countries? | Technology | explainlikeimfive | {
"a_id": [
"dg4o7hs",
"dg4qlp8"
],
"text": [
"Studios that sell content to Netflix want to maximize their profit. Because of copyright laws and agreements, Netlflix can negotiate with each studio to acquire specific streaming rights and agreements in each territory. Often, certain countries control t... | [
"url"
] | [
"url"
] | |
64sonb | Why are all objects in a game pink when their texture fails to load? | I have noticed that objects in a game are pink by default when their texture fails to load. I noticed it when using Unity framework or even in games developed using other frameworks. Is there a particular reason for this? | Technology | explainlikeimfive | {
"a_id": [
"dg4p6cw"
],
"text": [
"Generally stuff the player is never supposed to see is made really bright colors/patterns that would never actually be anything in a real game. This way, it's easy to notice when it sneaks in, and it's easier to troubleshoot. Otherwise you might not notice something wro... | [
"url"
] | [
"url"
] |
64tsjw | How far into space can we go before video or voice transmission would cease? | Even if the home base would not be on earth, what is the distance, if there is any, that would stop communication. | Technology | explainlikeimfive | {
"a_id": [
"dg4y59m",
"dg4z3ca",
"dg4ywnz",
"dg4ygw3"
],
"text": [
"No distance would be too far. The only limit is the lifespan of the people trying to talk to each other. All forms of light travel at the speed of light. This includes radio waves, which is how you might communicate. If you b... | [
"url"
] | [
"url"
] |
64u9eg | what is the difference between the internet and the www? | Technology | explainlikeimfive | {
"a_id": [
"dg52qm6"
],
"text": [
"The Internet is like a telephone system for computers. It's a communication network that allows computers to talk to each other, much like people can talk to each other over the phone. Whereas the WWW is one of the services you can use the internet for. Your browser can... | [
"url"
] | [
"url"
] | |
64vtp9 | Why do video games have leftover or unused content in the data? Is there a purpose in leaving it in? | Technology | explainlikeimfive | {
"a_id": [
"dg5my5n",
"dg5fprm",
"dg6axbh",
"dg5luda",
"dg5phjt",
"dg5szfp",
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],
"text": [
"Towards the end of a development cycle, caution is the name of the game. Video games are really complex (and often somewhat haphazardly... | [
"url"
] | [
"url"
] | |
64wifs | How good could video game graphics get before it is not possible anymore, and look exactly like reality? | Technology | explainlikeimfive | {
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"d... | [
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64wpup | How does a computer virus get its own code to infect new files? | Technology | explainlikeimfive | {
"a_id": [
"dg5m4im"
],
"text": [
"The code is loaded into memory during execution. So the virus can just read the code that is currently executing. Or the virus might get to read from the hard drive to get the code. A common programming exercise is also the quine which is code that outputs its own sourc... | [
"url"
] | [
"url"
] | |
64x67q | could someone explain google project of AI experiments? | URL_0 | Technology | explainlikeimfive | {
"a_id": [
"dg5popf"
],
"text": [
"Google has been doing a lot of research in the field of Machine learning for the past years. Machine learning is a subfield of AI where the goal is to make computers teach themselves how to solve problems instead of devising an algorithm for the problem by human hands. ... | [
"url"
] | [
"url"
] |
64xekf | How do analog clocks work. How do they now what a second is? | Technology | explainlikeimfive | {
"a_id": [
"dg5q7ck"
],
"text": [
"Most modern analogue clocks are still electrical; they use a piezoelectric quartz crystal to measure seconds, and tick once it's vibrated a certain number of times, usually 32,768. Fully-mechanical clockss generally use either a pendulum or a balance wheel - a pendulum ... | [
"url"
] | [
"url"
] | |
64xjxg | How come we can make an AI that can beat humans at Chess on a level playing field, but AIs in computer games like Civilization can only beat humans when they have access to extra resources? | Difficulty in chess programs is scaled by AI behaviour, whereas difficulty in the Civilization series (and other computer games of that sort) is scaled by 'cheating' to give the AI less or more resources than the human player. Why the difference? | Technology | explainlikeimfive | {
"a_id": [
"dg5rvkx",
"dg5r5sk"
],
"text": [
"Chess is actually very predictable game, at least compared to some. There are only 64 squares. There are only two players. A maximum of 32 pieces. Those 32 pieces are of 6 types, and each type has rigid limits on how it can move. The starting position of ... | [
"url"
] | [
"url"
] |
64xti2 | how hard is it to test how real different fast food meats are, like what was done to find out subway only has 50 percent chicken meat | Technology | explainlikeimfive | {
"a_id": [
"dg5vbmu"
],
"text": [
"It is virtually never a secret. If someone makes it sound like it was, look for the lie, as there always is one. For example, at one point taco bell got sued. The people sueing them claimed their beef was 35% beef at 65% filler. The lawsuit made TB look bad and some peo... | [
"url"
] | [
"url"
] | |
64ya8i | Why do some charging cables only work when they are bent a certain way? | Technology | explainlikeimfive | {
"a_id": [
"dg5wfku"
],
"text": [
"Such a cable has a broken wire inside the casing and bending it that way causes it to reconnect. The cable should not be used at all as the poor connection could result in damage to the device or for the cable to catch fire."
],
"score": [
8
],
"text_urls": ... | [
"url"
] | [
"url"
] | |
64yp1v | How can entire power grids be knocked down? | We often hear about major detrimental events such as a Nuclear strike or a solar flare potentially bringing down the country's entire power grid. Please ELI5 how entire power grids can be brought down by these events? | Technology | explainlikeimfive | {
"a_id": [
"dg62b5c",
"dg62li8"
],
"text": [
"Different parts of the power grid are intimately connected. Small issues at one spot can cause a cascading Domino effect further up or down the chain. The Wikipedia article on the 2003 Northeast US blackout has a nifty timeline of events. All mainly cause... | [
"url"
] | [
"url"
] |
64zpjd | How does a computer program uninstall itself? | Technology | explainlikeimfive | {
"a_id": [
"dg68wun",
"dg68oi7"
],
"text": [
"When a computer program is running, parts of it, and sometimes all of it is copied from the hard drive to RAM. Once there, it is free to delete the what is on the hard drive and continue running. When it is done, it signals the operating system, which wil... | [
"url"
] | [
"url"
] | |
6504z0 | How do people hack Console videogames when they don't have the ability to mod like PC's | Technology | explainlikeimfive | {
"a_id": [
"dg6cqm8"
],
"text": [
"A video game console is essentially a computer/pc that just outputs a visual image on a tv to display the video game being run on the console, the same way a pc does this with software on a monitor. So if you look at it like that, you can imagine 'hackers' just using a ... | [
"url"
] | [
"url"
] | |
65103m | Clothes I was looking at on my laptop have found their way into ads on my phone. How is this possible? | I know cookies and such store what you've been looking at so you can have ads displayed, but I thought that was limited to the device you were originally looking at them on. How did the things I was looking at on my computer somehow end up on my phone? (apologies if this is the wrong place to ask) | Technology | explainlikeimfive | {
"a_id": [
"dg6kzk6"
],
"text": [
"There are a few ways this can be done: 1. If you have an account logged into your browsers (eg Google Account logged in to your Chrome browser) and you use the same browser and account on your phone, the maker of the browser could have logged you looking at clothes on y... | [
"url"
] | [
"url"
] |
651mdt | how does active noise canceling work on earphones/headphones | Technology | explainlikeimfive | {
"a_id": [
"dg6pr8n",
"dg6pky7"
],
"text": [
"It works by hearing what is going on around you through a microphone and then adding a frequency that is the opposite of what the outside noise is. Waves are interesting in that if you add two waves with opposite frequencies together you can cancel them o... | [
"url"
] | [
"url"
] | |
651nh2 | Why is it that all the blockbusters have gone out of business, but adult video stores are still around? | I would have thought that all video stores would have been just as affected by the internet. | Technology | explainlikeimfive | {
"a_id": [
"dg6qknq"
],
"text": [
"Adult 'video' stores don't just sell videos, they frequently also sell sex toys, lubes & fetishwear. Many of the ones around here also sell bongs & pipes. On top of that, they often have \"video rooms\" in the back where people do... \"stuff\"."
],
"score": [
11... | [
"url"
] | [
"url"
] |
651nu4 | Why can blank CD's hold the same length of music at different bitrates? | Blank CD's come in certain amounts of time they can store (e.g. 80 minute CD's), but if mp3's at 128 kbps take up 40% of the space per amount of time as mp3's at 320 kbps, why can a CD that can hold 80 minutes of 320 kbps not otherwise hold 200 minutes of 128 kbps? | Technology | explainlikeimfive | {
"a_id": [
"dg6qh8r",
"dg6qa34"
],
"text": [
"If you record a CD as an audio CD, it *always* writes the music as 44.1kHz, 16-bit **uncompressed** audio. If the source was a low-quality MP3, you just end up with low-quality audio recorded at 44.1kHz, 16-bit. If you write it as a *data* CD, you can fit... | [
"url"
] | [
"url"
] |
651ti7 | Why can't computer viruses infect modems/routers? Or can they? | Because if they could then how would anti-malware stop them? Edit: Thanks for the answers guys :D | Technology | explainlikeimfive | {
"a_id": [
"dg6u23g",
"dg6rhxu"
],
"text": [
"They can and do. Routers and modems are just small embedded computers very similar to your desktop or laptop. Most of these run modified versions of the Linux or BSD kernel. The problem with these consumer devices, along with other \"Internet of Things\" ... | [
"url"
] | [
"url"
] |
652m6q | Why is it necessary to go to such great lengths to eliminate contaminants when manufacturing electronics like cell phones? | Technology | explainlikeimfive | {
"a_id": [
"dg6yna7"
],
"text": [
"It depends on the thing you're manufacturing. With semiconductor parts even tiny specs of dust can cause failures by changing the electrical properties of certain regions of the chip, so manufacturing is done in clean rooms. With other things that are less sensitive, du... | [
"url"
] | [
"url"
] | |
652oe0 | How much damage can realistically cause Kim if he decides to press the red button? Are counter-aerial defense system from other countries advanced enough to completely prevent a nuclear disaster? | Technology | explainlikeimfive | {
"a_id": [
"dg734jz",
"dg7148j"
],
"text": [
"The short answer is \"a lot,\" although it would understandably be suicidal. Excluding cyber attacks or an unlikely and unorthodox employment of a nuclear bomb, the physical damage would be largely confined to Northeast Asia- particularly Seoul and the US... | [
"url"
] | [
"url"
] | |
652tks | Why had USB type C become more popular than USB type B ever was? | Technology | explainlikeimfive | {
"a_id": [
"dg70ef3",
"dg70edt"
],
"text": [
"I don't believe that your premise is true. USB-B is incredibly ubiquitous, and type C is relatively new and not used on a lot of devices (yet).",
"Type B was extremely popular, it was/is used all the time for non portable peripherals. It was never mad... | [
"url"
] | [
"url"
] | |
652vai | why do wi-fi devices sometimes end up self-assigning IP (169.254.xx.xx) instead of the router's default (192.168.xx.xx)? | sometimes my devices will end up with a self-assigned IP instead of one dished out by the router. Why does this happen? i sorta understand theres some conflict but why, and am i able to prevent this conflict from happening? i usually fix this by restarting the router, but is it possible to stop it from even happening, ... | Technology | explainlikeimfive | {
"a_id": [
"dg71mav"
],
"text": [
"A 169.254.x.x is an APIPA IP address. This generally occurs because there was a breakdown in communication/response with a DHCP server. The usual fix is to correct any network configuration issues to ensure access to DHCP server or correct any DHCP server configuration ... | [
"url"
] | [
"url"
] |
653awy | What's the difference between 4k LED, and OLED TV's? | Does it have to do with pixels? Are the pixels the same? Are the LED pixels rectangular vs OLED circular or something? | Technology | explainlikeimfive | {
"a_id": [
"dg76e28"
],
"text": [
"OLED TVs work differently from an led tv. In an OLED panel each pixel has 3 organic light emitting diodes that light up to create different colors of light for each pixel. In an LED panel the LED part is referring to the backlight (not needed in an OLED panel). The led ... | [
"url"
] | [
"url"
] |
653igm | Where is the internet? How is it connected to the physical world through our computers? | If there was a global shutdown of all computers what would happen to the internet? Let's say we (as in all of humanity) transcended our physical bodies and imprinted our minds like an ai into the internet what would happen to our digital space after years of physical neglect on the outside? Im just curious, and kind of... | Technology | explainlikeimfive | {
"a_id": [
"dg76gjx",
"dg78va9",
"dg7c16x"
],
"text": [
"Every single piece of information exists on a server somewhere. The cloud isn't real it's just millions of servers physically located somewhere.",
"The Internet is just the name we give to a whole bunch of computers and communications g... | [
"url"
] | [
"url"
] |
653trr | What is plant-based meat? | Was reading an article about synthetic meat and it kept mentioning "culture created meat" and "plant-based meat". | Technology | explainlikeimfive | {
"a_id": [
"dg78zkb"
],
"text": [
"Animal cells take amino acids from plants and turn them into proteins. Then they arrange the proteins into muscle cells and other tissues. When we kill these animals and eat them, we call it meat. Now instead of using animal cells to make our meat, what if we train bact... | [
"url"
] | [
"url"
] |
654rds | Why are most circuit boards in a dark green shape? | I know that there are other PCB colors too, as Arduino blue or SparkFun red. But most boards in industry or in home appliances are in a very specific dark green color. Is there any particular reason for it or is it just a grown standard? | Technology | explainlikeimfive | {
"a_id": [
"dg7elrc",
"dg7gi64",
"dg7shd3"
],
"text": [
"Dark green is not a shape. Assuming, however, that you meant \"colour\" - it's to do with the manufacturing processes involved. While it's increasingly possible to use alternative materials, the best-established processes use materials that... | [
"url"
] | [
"url"
] |
6563qx | Why does turning an electronic device off and on again often fix most of the problems? | Technology | explainlikeimfive | {
"a_id": [
"dg7p289",
"dg7pfox",
"dg844io"
],
"text": [
"A lot of issues with stuff not working is because the RAM (or some other temporary memory) is storing some sort of issue. When you try to do something where the computer has to look at a previously saved value there is a chance the value wa... | [
"url"
] | [
"url"
] | |
65658b | What is the difference between an object, a class, and an instance? | edit: Yes, it is a programming question. | Technology | explainlikeimfive | {
"a_id": [
"dg7rbu9"
],
"text": [
"Think of a class as a template, where functions and fields are defined. From that template, we can build concrete instances/objects. A very simplified example: Imagine, a Person class has the fields: name and age, and address. But it has no values since it's a template ... | [
"url"
] | [
"url"
] |
656lc9 | Why is it that sometimes "I am not a Robot"-Captchas don't prompt you to do anything? | Technology | explainlikeimfive | {
"a_id": [
"dg7vym6",
"dg7tbrr"
],
"text": [
"It's a mechanised risk assessment, along similar lines to those done to determine your car insurance policy. The machine looks at a number of things it knows about you, or can determine from your interaction with the actual captcha itself. For example, if... | [
"url"
] | [
"url"
] | |
658tsh | Video games and source code | Hopefully there's some people here with knowledge, or better yet, programmers for video games. To preface, I'm mainly asking this about the top-selling AAA games I'm guessing that a video game's source code isn't written in a text editor. I'm aware that there's such a thing called a "game engine" - but how is source co... | Technology | explainlikeimfive | {
"a_id": [
"dg8k20w",
"dg8d4ma"
],
"text": [
"Computer engineer here. I'm not a professional game developer, but I can provide some insight since i do lots and lots of programming (software and HDL). > I'm guessing that a video game's source code isn't written in a text editor. I'm aware that there's... | [
"url"
] | [
"url"
] |
65a5tr | the "mother of all bombs" / largest non nuclear bomb. What makes it so powerful? Why is it significant? Why use it now? | Technology | explainlikeimfive | {
"a_id": [
"dg8pj4s",
"dg8ofk2",
"dg8odpa",
"dg8og60"
],
"text": [
"The [MOAB]( URL_4 ) is an air-burst weapon intended for soft to medium targets over an extended area. And while it technically is not a penetrator weapon (commonly called 'bunker busters'), it is optimized for targets in envi... | [
"url"
] | [
"url"
] | |
65aq3b | What is computational linguistics? | Technology | explainlikeimfive | {
"a_id": [
"dg8t78b"
],
"text": [
"It is the application of computer science techniques to language. What does this mean? So saying I have the following phrase: 'The password to my account is XYZ' Computational linguistics could apply a number of different filters on this sentence They could for instance... | [
"url"
] | [
"url"
] | |
65b95l | With driverless cars becoming more common and safer, how can this technology be brought to airplanes? | Technology | explainlikeimfive | {
"a_id": [
"dg8wkvh",
"dg90orl"
],
"text": [
"Commercial jumbo jets are already mostly \"driverless,\" in that they can take off, fly, and land all on computer. The pilots are there to make sure nothing goes wrong.",
"It's actually much easier for planes than for cars. Unlike cars, planes have ve... | [
"url"
] | [
"url"
] | |
65czml | What is BitMining? How exactly do you mine for money on a computer? | Technology | explainlikeimfive | {
"a_id": [
"dg9ca4l",
"dg9agpn"
],
"text": [
"You don't really mine for money, that's just the word that's used. So with normal money, there's a central governing body that decides what is a real dollar and what is a fake one. With a currency like Bitcoin, it was intentionally designed without any ki... | [
"url"
] | [
"url"
] | |
65daan | If the earths Carbon levels have constantly been changing throughout history, How do we know carbon dating is not inaccurate? Aren't we assuming a constant when there is none? | Im curious Since there have been periods throughout history where greenhouse gas levels have been so high at times (siberian traps) and so low at times like during the ice ages. plus other Major events that we cant even understand or know about... So my question is basically, "Isn't using carbon levels as a measurement... | Technology | explainlikeimfive | {
"a_id": [
"dg9cmk7",
"dg9bef2"
],
"text": [
"Carbon dating doesn't measure the amount of carbon in an area and compare it to a set time period. Instead, it measures the decay of a radioactive isotope of carbon (radiocarbon) in organic material. Radiocarbon has a half life of 5,730 years, meaning tha... | [
"url"
] | [
"url"
] |
65dfsf | What are the black dots around car windows? | You know, the border of the windows with dots of different sizes. Why do some cars have them and some don't? | Technology | explainlikeimfive | {
"a_id": [
"dg9cnyh"
],
"text": [
"It's just a way of blending the boarder of the windshield. There is a black boarder to attach the glass to the car, instead of having a hard line they put dots (or a fade) to blend it out."
],
"score": [
3
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] |
65dpc1 | Before GPS, how did pilots navigate planes? | Technology | explainlikeimfive | {
"a_id": [
"dg9hpcw",
"dg9gm99"
],
"text": [
"Lots of good answers here so far, although none of them are totally complete. I'll try to fill in the gaps: - The most basic way of navigating is **ded reckoning**. This involves measuring the direction you want to go on a map, as well as the distance. Yo... | [
"url"
] | [
"url"
] | |
65dyjk | Artificial intelligence | How does it work. It's like a man made brain correct? How can something so complex, and convoluted actually be accomplished. Even on a minor scale. And what could this technology progress into? Could it make the modern solider absolute? And what moral bounds do the people furthering this technology abide by, if any? | Technology | explainlikeimfive | {
"a_id": [
"dg9liiz",
"dg9pm61"
],
"text": [
"Artificial Intelligence is not a very precise term. It can be used to refer to lots of different types of computing, from machine learning to the way that NPC's behave in video games. I can speak to what I know about, which is computer vision. In order to... | [
"url"
] | [
"url"
] |
65e6kr | What's the difference/relationship between the Internet and the World Wide Web? | I was listening to a fascinating NPR segment with the inventor of the WWW, Timothy John Berners-Lee, who stressed he *did not* invent the internet. I knew they were different, but never precisely how. The segment seemed quite informative, but because I was driving through the middle of nowhere, it kept cutting out, so ... | Technology | explainlikeimfive | {
"a_id": [
"dg9iuqp"
],
"text": [
"The Internet is a global network of computers. The World Wide Web is one of many services that runs *on* that network The Web is specifically the stuff you can access through your browser: a set of documents, referencing each other by way of hyperlinks. Email (for examp... | [
"url"
] | [
"url"
] |
65fckl | My Mac can run every pre-Wii U Nintendo game ever made. Why can't a new Nintendo console do the same? | Technology | explainlikeimfive | {
"a_id": [
"dg9svmn"
],
"text": [
"There are at least 3 problems * Many games that you think \"run\" on your Mac (or a Raspberry Pi) don't really run 100% as they where intended. It might be something easy to miss without a side by side test like the Triforce pieces moving too quickly at the start of Lin... | [
"url"
] | [
"url"
] | |
65gzhu | Why did 'SOLAR FREAKING ROADWAYS' never come into fruition? | For something that seemed to make so much sense/generate a lot of hype, why has the idea died off? | Technology | explainlikeimfive | {
"a_id": [
"dga7fjr",
"dga7b0c",
"dga77oz",
"dgaamzg",
"dgae6lz",
"dgab3ex",
"dgacnik"
],
"text": [
"The people making it can't even figure out how to get a roughly 15 foot area of sidewalk panels to light up, let alone produce energy, and that's after several million dollars, and... | [
"url"
] | [
"url"
] |
65h6js | Why is the dark web so big? | People always say that the dark web is much much bigger than then normally accessible internet. But why is that so? Why are there so many more "dark stuff" than normal ones? | Technology | explainlikeimfive | {
"a_id": [
"dga9379",
"dgac88w",
"dgajkh5"
],
"text": [
"it's because literally every website that isn't normally accessible is in the dark web. This includes someone's google drive, anyone's facebook dashboard, etc. There's a lot more private pages needed than there are public ones.",
"That'... | [
"url"
] | [
"url"
] |
65hmci | How are the songs on the radio encoded into radio frequencies? | Technology | explainlikeimfive | {
"a_id": [
"dgadwev"
],
"text": [
"If it is analog radio there are two ways AM and FM. In both cases you have a carrier wave at the frequency you set your radio to. The carrier wave has higher frequency then the sound. The sound you can hear is < 20,000 hz and the carrier wave is in the 1,000,000 hz rang... | [
"url"
] | [
"url"
] | |
65jp1z | Part 15 of the FCC rules that requires a device to ACCEPT any interference received, including interference that may cause undesired operation. | e.g. Compliance for the above requirement is mandatory even for a [Fisher Price ABC toy for toddlers]( URL_0 ) | Technology | explainlikeimfive | {
"a_id": [
"dgat4k1",
"dgat613"
],
"text": [
"Pretty much every electronic gadget emits radio waves (RF), even if not intentionally, which means they have to be certified under the FCC's Part 15 rules for unlicensed transmitters. Because Part 15 devices tend to leak RF, many are also prone to having ... | [
"url"
] | [
"url"
] |
65kakn | Can scratches on a DVD corrupt the files, and if so, why or how? | Trying to understand why a store bought DVD won't work at certain scenes. | Technology | explainlikeimfive | {
"a_id": [
"dgayc74"
],
"text": [
"Firstly it is important to understand how CDS and DVDs work and I will make an assumption as to where the scratches would be. Firstly CDS and DVDs are optical media, that means they use light (laser) to be read. The information on these discs is made up of lots of littl... | [
"url"
] | [
"url"
] |
65kf60 | Why is the Reddit search tool on the app so slow/fault? | Technology | explainlikeimfive | {
"a_id": [
"dgb0sf9"
],
"text": [
"It is indeed pretty bad. However you may also want to brush up on your search abilities too. URL_0 URL_2 URL_4 URL_1 URL_3"
],
"score": [
14
],
"text_urls": [
[
"https://www.reddit.com/r/NoStupidQuestions/comments/64ogr2/why_is_the_reddit_search_en... | [
"url"
] | [
"url"
] | |
65kvk8 | Why does the USA have thousands of nuclear weapons? | I read earlier today that the USA has 6,800 nuclear weapons. I've looked online and that figure is an estimate, but the number is certainly in the thousands. How did that come about? I mean, I suppose what I'm asking is that 1,000 warheads is enough to probably bring about the apocalypse. Why did they manufacture so ma... | Technology | explainlikeimfive | {
"a_id": [
"dgb2rnp"
],
"text": [
"The problem is that the your enemy, the Soviet Union, may suddenly invent a way to surprise you and bomb your nuclear arsenal, or shoot your missiles with giant space lasers, or something like that. Thus you build more nuclear missiles than needed, so that even if half ... | [
"url"
] | [
"url"
] |
65kwhc | Why is the UI theme of many popular computer programs/apps (MS office, Google, etc.) extremely "white"? Is it functional, or simply to look modern and cool? | It seems like many of the most popular apps have extremely white and bright interfaces, especially MS office and Google. It feels like they hurt my eyes after hours of using them, much more than if they used more grays and blues. I believe Microsoft added some minor tweaks and themes to Office 2016 after complaints abo... | Technology | explainlikeimfive | {
"a_id": [
"dgb21rq",
"dgb1uml",
"dgbiah6",
"dgberio"
],
"text": [
"White does not affect battery life on most screens. Regular LCD screens are lit up 100% white in the back, and then use polarizers to darken the non-white pixels. This aesthetic originated at Xerox PARC and was then copied by... | [
"url"
] | [
"url"
] |
65l0p6 | What exactly is plastic and how did it become so wide spead? | Technology | explainlikeimfive | {
"a_id": [
"dgbabbf"
],
"text": [
"Plastic is composed of [polymers]( URL_0 ). Polymers are organic molecules composed of a chain of many monomers; basically an organic molecule that easily links to others of its kind to form really long strands or surfaces. Basically, carbon has 4 links and can easily l... | [
"url"
] | [
"url"
] | |
65l4tw | Why is it that when files are interpreted by audio software as raw audio data, strange sounds such as static and tones appear? | When using audio software such as Audacity, you can import any type of file, be it .mp3, .exe, or .dll, as raw data. The results can be pretty astonishing, especially with files such as mspaint.exe, explorer.exe, and shell32.dll where white noise and tones appear, creating sections that could be almost classified as me... | Technology | explainlikeimfive | {
"a_id": [
"dgb8wrv",
"dgbbcir"
],
"text": [
"The values in computer code could basically be random, at least having no pattern that corresponds to recorded or synthesized audio. White noise basically **is** random variation over time. But you can also get repetition in code, and repetition over time... | [
"url"
] | [
"url"
] |
65lykh | Why do people get headaches after playing video games or watching TV for too long? | Technology | explainlikeimfive | {
"a_id": [
"dgbaw6a"
],
"text": [
"* Dehydration from low fluid intake * Slow blink rate, causing dry eyes * Poor body posture * Hey. Hey. Hey Listen. Hey. Look. Hey. Hey. Hey. Look. Hey. Listen. Listen. Hey."
],
"score": [
10
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
65mf6c | How do save states work? Why are they so small compared to save ram, yet recall so much information? | Technology | explainlikeimfive | {
"a_id": [
"dgbhpwj"
],
"text": [
"In game consoles? The amount of RAM in old consoles is absolutely tiny. The NES has 2K of RAM, 2K of video RAM, 256 bytes of OAM and 28 bytes of palette RAM. To save an arbitrary state you'd also need to store things like CPU registers which won't amount to much either.... | [
"url"
] | [
"url"
] | |
65o9a3 | How does my broken handsfree turn musics to instrumentals? | So today I found my earbud's wires to be broken, and after playing a few music, I realized it filters out the singer's voice from the music, my musics are all instrumentals now, wot? This seems to be more apparent among Rock/Metal musics where the bass guitar has a bigger contribution to the sound, sometimes more than ... | Technology | explainlikeimfive | {
"a_id": [
"dgbwxzj",
"dgbwu4m"
],
"text": [
"There's a pretty complex thing going on. Headphones use a TRS connection - which instead of having 2 dedicated wires for each channel (2 for L/2 for R) it has 1 for L, 1 for R and 1 common ground. Due to the common ground, when things short *just* right, ... | [
"url"
] | [
"url"
] |
65q73k | Why is reddit's search feature so bad? Most of the time it says "search failed" and it's always slow. | Technology | explainlikeimfive | {
"a_id": [
"dgccz7q",
"dgcf2xb",
"dgccvti",
"dgcaic2",
"dgchuaq",
"dgck7yd",
"dgcj6se",
"dgcb51p",
"dgchjnx",
"dgcjol5",
"dgcjkt3",
"dgcjcag"
],
"text": [
"Right. And then I get down-voted when I post something in askreddit that had been previously posted but i... | [
"url"
] | [
"url"
] |
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