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nxh9kl | When a game's "code is lost" what stops a company from dumping/decompiling code from a disk or cartridge copy of the game for things like remakes and remasters? | Technology | explainlikeimfive | {
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"Decompiling isn’t all that easy, and if it works at all you’re left with bare code that contains no notes about how anything is supposed to work. Millions of lines of code that someone wrote years ago with no explanation abou... | [
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nxilgt | Why can screens only be viewed from certain angles when wearing sunglasses? | I have noticed for a while that when wearing my sunglasses in the grocery store the screens of the self checkout appear to be off/black when I approach them from the side and I can only see what's on the screen when I'm in front of it. Today I was on the bus playing a game on my phone and the game plays horizontally. I... | Technology | explainlikeimfive | {
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"your sunglasses are probably polarized because it helps against glare from the sun. LCD screens also contain a polarizing filter to make sure only the color of light you're supposed to see comes out (if you take it apart the whole screen turns white) the ... | [
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nxonio | How exactly are emails sent, like the actual process of the data getting sent to another device that’s for example on another continent? | Technology | explainlikeimfive | {
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"There are a bunch of standard communications protocols that make up what we call \"The internet,\" like **H**yper**t**ext **T**ransfer **P**rotocol (http) which transfers webpages from their server to your device. When you send an email, your computer con... | [
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nxrz1x | VHS won the battle vs Beta. Why? | Technology | explainlikeimfive | {
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"text": [
"I would be curious if anyone has any source data for what I was always told; someone on the VHS side of things convinced several of the main producers of porn to adopt the VHS format, and from that time betamax was losing the battle one inch at a time."
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nxt9j5 | How come animals can eat raw food and be fine but humans get sick from it? | Technology | explainlikeimfive | {
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"text": [
"Humans don't get sick from eating raw meat. They get sick from eating raw, *contaminated* meat. We can eat as much raw beef as we want as long as it's healthy and fresh. Most of us just don't like it. Animals don't store food, they eat the ... | [
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nxwwy1 | In some US States, video recording is legal but audio recording requires 2 party consent. Why are they treated differently? | Technology | explainlikeimfive | {
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"text": [
"Most of these laws were actually written in regards to wiretapping, as in bugging a phone. Before surveillance cameras or even video cameras ever existed."
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nxyh8z | Why do HDMI cables have such high bandwidth capability when most of the content we watch is usually at a much lower bit rate? | Technology | explainlikeimfive | {
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"text": [
"Because the data stream you get from YouTube or Netflix is compressed and needs to be processed to create an image. A 1080 TV has 2,073,600 pixels it must draw 60 times a second. Each of those pixels has has 3 color elements that require 10... | [
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ny3b79 | How are Virtual Machines made? | Technology | explainlikeimfive | {
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"text": [
"They reserve part of your hardware and it runs a second OS on that. Running a VM will take away resources from your applications running on the main OS. VMS will allocate the resources, even if they are not needed. Therefor a VM should be configured with minimal resourc... | [
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ny5tni | Why is the recommended brushing time the same regardless of the type of toothbrush? | My 10 year old basically asked me this when I replaced his manual toothbrush with an electric one, and I had no answer. If a powered toothbrush does more brushes per second than a manual one then shouldn't you have to bush your teeth for less time? Or if 2 minutes is recommended for the electric one then shouldn't you ... | Technology | explainlikeimfive | {
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"text": [
"One of the useful things that toothpaste usually contains is fluoride, which can fill microscopic holes in your tooth enamel and stop them from growing into larger and more problematic holes. The two minute thing is more about letting the fluoride have ti... | [
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nyf8jo | How are qbits read and useful? | Technology | explainlikeimfive | {
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"text": [
"From what I understand, they are both a 1 and a 0 at the same time *until* they are read. At that point, they resolve into either one or the other. But there will be another bit entangled with it, such that once one of the qbits is read, th... | [
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nyf9yu | why 3G is basically useless now? | I've noticed among myself and my friends that the 3G technology doesn't work as well as it used to, or not at all. When I say not at all, i mean if our phones drop from 4G to 3G there will be little to no service available. Phone isn't connected to the interwebs. | Technology | explainlikeimfive | {
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"More physical assets and infrastructures are being adjusted to 4g and 5g now, which leaves very limited resources left to handle 3g signals and data. This slows any 3g applications down immensely... | [
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nyh6k4 | What's happening when a charging battery is full, but still keep receiving power ? (Smartphone stay plugged all night for instance) | Technology | explainlikeimfive | {
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"text": [
"Smartphones have small circuits that turn off the power when the battery is full, even if it’s still plugged in. Overcharging a battery can damage it and possibly cause it to explode. Just being near 100% charge damages it.",
"When a ba... | [
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nymhd1 | How do ISPs work? | Technology | explainlikeimfive | {
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"The internet works like roads do. You home connects to smaller roads (your ISP) which in turn connects to major streets (Tier 2 ISPs) which in turn connect to major highways (Tier 1 ISPs). Those major highways connect to one another, creating a large web of roads/street... | [
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nynegy | How does a SAM distinguish different targets? | How does the SAM (surface to air missile) not fire on friendly aircraft and only on enemy aircraft? | Technology | explainlikeimfive | {
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"h1l2003"
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"text": [
"As others have mentioned IFF exists to identify aircraft. But it's also worth pointing out the launcher isnt operating alone, it's linked to a detector, usually radar. This is the eyes, it has a computer brain and the iff coming off the contact is part of the informatio... | [
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nyum8j | Why do wall sockets only have 1 or 2 plugs? | I've always wondered why there were only two. Can't we add more? | Technology | explainlikeimfive | {
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"There is typically a code (for safety) regarding electrical wiring. There is always the option of running more wires to more outlets, but there is a limit to how many sockets can b... | [
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] | [
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nyweh0 | What is an “amp” link? | Posted a link to clarify an AMA and was asked not to post “amp” link. Please explain. Much appreciated! | Technology | explainlikeimfive | {
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"h1mcsa4"
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"text": [
"What is AMP? AMP is an open-source web component framework developed by the AMP Open Source Project, first announced by Google in 2015 as a reaction to Facebook’s Instant Articles and Apple News. While it was originally aimed at accelerating mobile pages (hence AMP), it... | [
"url"
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nyx2ev | How are certain songs recorded so that some sounds can only be heard through one earphone and not the other? | Technology | explainlikeimfive | {
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"text": [
"Most songs are recorded with all the instruments separated. Each instrument records a separate track and someone mixes them together later. Stereo formats have the left and right separate so the can adjust what sounds come into each ear.",
... | [
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nyxmhk | How were game cartridges copied back in the NES and Atari days? | After the main game is made, how are the backup copies of the game manufactured, back when computers weren't as common as it is now. | Technology | explainlikeimfive | {
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"h1mla2a"
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"text": [
"A normal user wouldn't make a copy of it. As for manufacturing them, I believe most of them were masked ROM, so the contents would be built into the chip as it was manufactured. You couldn't erase them and put something else on them. There were EPROM and EEPROM chips th... | [
"url"
] | [
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nyy4og | Why is it so difficult for software to give an accurate amount of time remaining for an install? Isn’t the install process relatively discrete? | Technology | explainlikeimfive | {
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"text": [
"There are always other programs running on your system. If some of them decide to use memory or the drive right now, your install can be delayed for an unpredictable amount of time.",
"Your assumption is that internet speed and hardware speed stays th... | [
"url"
] | [
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nz6350 | Why do radio stations have acronyms before the number? | Technology | explainlikeimfive | {
"a_id": [
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"text": [
"In the US all broadcasters are assigned a series of call letters as an identifier when they get their license from the FCC.",
"That's a call sign. It's a unique alphanumeric code that identifies all radio and television broadcasters. In the US such th... | [
"url"
] | [
"url"
] | |
nz7hn8 | How do lock companies produce so many unique lock key combinations through a standardized production methods? | Technology | explainlikeimfive | {
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"h1o3c9k"
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"text": [
"The unique combinations for a lock depend on the number of pins in the lock and the number of possible positions. When the key is inserted it pushes up on the pins based on the shape of the key, and based on how high the pins are pushed it can unlock the door. So if you... | [
"url"
] | [
"url"
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nz9orz | During a shuttle launch, what happens at T-6.6 seconds vs. what happens at 0 seconds? | At T-6.6 seconds, you see a huge fireball come out of the rockets, but the shuttle doesn’t actually lift off until 0 seconds. What happens at 0 seconds that isn’t happening at T-6.6 seconds? I think I found a Wikipedia article, but it’s way over my head. | Technology | explainlikeimfive | {
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"text": [
"At T-6.6s they begin firing up the three Space Shuttle Main Engines underneath the Orbiter. These are liquid-fueled engines that pull fuel from the big orange External Tank. The SSMEs are *extremely* mechanical... | [
"url"
] | [
"url"
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nzhdit | Is there actual science behind the ubiquitous laser miner of sci-fi? If so, By what principle would they work? | Technology | explainlikeimfive | {
"a_id": [
"h1pieg4"
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"text": [
"Are you asking if it is feasible to melt trough rock using light energy? Currently, no. This technology is beyond us. However [Plasma torches]( URL_0 ) are a thing, and even Rednecks can teach you how to build them."
],
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nzjddr | When computer processes (downloads, installations, etc.) reach 100% and stay there for a while, what actually goes on? | Technology | explainlikeimfive | {
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"text": [
"Have you ever finished the job and then took a moment to put away your tools?",
"It depends on rhe application. In addition to what other people have said. It's ... | [
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] | [
"url"
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nzkojy | what happens if we charge our phones overnight? Does the battery life really reduce? If yes what's the science/reason behind it or is it just a myth? | Technology | explainlikeimfive | {
"a_id": [
"h1pz3lq"
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"text": [
"Part truth, part misleading, part bullshit, part ancient bullshit. * Truth: Batteries lose capacity over time. No matter what you do, it'll eventually wear out. * Truth: Using a battery a lot kills it faster * Truth: Overcharging a battery is a very bad thing. * Truth: ... | [
"url"
] | [
"url"
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nzn0fp | When a YouTube video starts buffering, why does the picture freeze first but the sound continue for a brief moment? | Technology | explainlikeimfive | {
"a_id": [
"h1qadiu"
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"text": [
"Sound takes a lot fewer bits than video. The video runs out of bits, and puts up the buffering symbol so you know. The sound just stops when it runs out of bits, but the bits on hand last longer than the bits on hand for video. Not a lot longer, the buffers take the sma... | [
"url"
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"url"
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nztm2a | How do QR codes work? | How are QR codes able to direct me to a website/ fill out correct information on blank fields? | Technology | explainlikeimfive | {
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"text": [
"QR codes are a really cool way of encoding information in an image. You'll notice of to look at one, there are a few obvious landmarks that all QR codes share, the large nested squares in 3 corners, and the smaller nested squares in the fin... | [
"url"
] | [
"url"
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nzufv9 | Why are smartphones incapable of setting two timers to run concurrently? | Technology | explainlikeimfive | {
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"h1ri6te",
"h1rhusz"
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"text": [
"> for some reason the iPhone just can't seem to handle that colossal computing task. The technology exists my friend, and the iPhone... from a required computing power standpoint - is more than capable of it. But Apple has decided that _normal_ users clea... | [
"url"
] | [
"url"
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nzusq5 | Why can't we watch over the airways broadcasts through the internet? | It is 2021, how come we can't just watch network tv (CBS, NBC, ABC, and Fox) over the internet instead of having to hook up a digital antenna and having the hassle of moving it around to ensure a strong signal? Yes, I am aware that broadcast tv can be viewed over paid streaming services like Sling, Hulu Live, and YouTu... | Technology | explainlikeimfive | {
"a_id": [
"h1rkqz8",
"h1rq1c2"
],
"text": [
"When you have a satellite or cable TV hookup, the signal that the provider is sending out is \"Multicast\". That means they only need to broadcast one signal, and everyone can listen to it. With the Internet, multicast is generally a bad thing. The main d... | [
"url"
] | [
"url"
] |
nzxfi1 | Why are keys of a computer keyboard arranged in that specific way? | Technology | explainlikeimfive | {
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"text": [
"There are lots of different arrangements, but if you're referring to Qwerty, it's because the letters are offset such that more commonly used keys are next to less commonly used keys. This is because back when mechanical keyboards had arms ... | [
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] | [
"url"
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nzzkib | Why are High Ohm Headphones better then Low Ohm Headphones? | Technology | explainlikeimfive | {
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"h1sdjxx"
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"text": [
"Think of the electrical coils inside a headphone as a wound up garden hose. Push water (current) through it and the hose expands and can push other things (electromagnetic field). In a headphone, the coils generate a magnetic field to move a diaphragm back and forth, ma... | [
"url"
] | [
"url"
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o03t8q | when taking pictures of a computer or tv screen on your phone, why is the picture occasionally distorted and streaked with odd light effects that vary if you zoom in or out? | I noticed this occurs sometimes when I am recording a video or taking a picture of a tv/computer screen but not all the time. | Technology | explainlikeimfive | {
"a_id": [
"h1t2jua"
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"text": [
"Your TV or computer screen isn't constantly displaying a static image, even when it's displaying a static image; it is getting data for each row of lights and updating them faster than we can typically see (a standard refresh rate for a PC monitor is about 60 hertz, or ... | [
"url"
] | [
"url"
] |
o0b3zg | Why are all image files four-sided? | Every type of image file I've known is quadrilateral, even if you have a .png of a circle, there are still transparent pixels filling the corners into the shape of a square. Is this because of some technology limitation that only allows images to be this way? If so, elaborate. Or on the other hand was this decision mad... | Technology | explainlikeimfive | {
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"text": [
"It is not a limitation of the technology as such, more a concious decision to limit the file formats to rectangular images. This makes it easier to make the file format as all images can be represented as the same type of data matrix of pix... | [
"url"
] | [
"url"
] |
o0dt3i | How do Artificial Neural Networks work? | Technology | explainlikeimfive | {
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"text": [
"Let’s think of something an artificial neural network could do. How about predict the weather? We’ll just tell it to try and figure out how warm each day will be, to make things easier. So the output we’re looking for is “tomorrow’s high temperature.” Now... | [
"url"
] | [
"url"
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o0h88u | How does the computer physically store information in the memory (RAM)? | I know that the RAM is for storing temporary information that can be accessed very fast. How is this information physically stored? I do web development (nothing low level like Assembly) and I use variables to store information but how is that physically stored? Are there any elements that hold the electric charge or i... | Technology | explainlikeimfive | {
"a_id": [
"h1uxspn"
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"text": [
"RAM typically uses capacitors and transistors to hold onto an electrical charge. A \"high\" electrical charge (above half a volt) is a 1 and a \"low\" charge is a 0. It's much faster than reading and writing to a hard drive, but is volatile (only works while the compute... | [
"url"
] | [
"url"
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o0ixbl | whether ion technology hairdryers do anything | Half of the hairdryers in the shops are "with ions", promising that they dry your hair gently, without frizzy ends, and faster than regular hot air. Do they actually do any of that? How? | Technology | explainlikeimfive | {
"a_id": [
"h1v8f2x"
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"text": [
"*not a hair drying expert but I know some stuff about ions, here's my take on the situation. The theory with ionic air movement and improvements in how it dries your hair are that the removal of ions can reduce static electricity. I know this works on a purely scientifi... | [
"url"
] | [
"url"
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o0jyy0 | When I’m on speakerphone, how does the person I’m talking to not hear the videos that I’m playing and hearing while we’re talking? | Technology | explainlikeimfive | {
"a_id": [
"h1vem8s"
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"text": [
"Because the phone knows what sound waves it is putting out, and chooses not to transmit them. The computer inside your phone knows that the sound the speakers are putting out “looks” like, the sound waves, so at when it is also receiving sound to send on a call it is “l... | [
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o0mj65 | Why does hitting the TV remote make it work? | Technology | explainlikeimfive | {
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"text": [
"The only way this would happen is if the batteries are not seated properly. The rest of the remote has no moving parts, hitting it should do nothing.",
"Rust/Dirt on the battery contacts or not properly seated batteries can both be solved by a physica... | [
"url"
] | [
"url"
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o0qy6p | What is anti-aliasing? | What does it do and how does it work? | Technology | explainlikeimfive | {
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"text": [
"If you look really closely at a screen rendering 3d graphics, any lines not at vertical or horizontal angles will tend to look \"jagged\" and like stair-steps rather than a smooth surface. It's especially noticeable if you lower the render ... | [
"url"
] | [
"url"
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o0sy0k | How does turning off your computer with the physical power button cause file system damage? | I was always told never to turn off my computer (or even gaming consoles) with the power button because it can mess up the file system. But I never understood how it happens, or why it happens. Do you think computer technology will ever advance past this obstacle? | Technology | explainlikeimfive | {
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"text": [
"Files systems are slow. Your computer and game console will sometimes keep data cached in RAM and commit it to the file system at a later time. If you turn off the power before the data is written to the file s... | [
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o0vlgi | how does Live Photo starts few secs before I snap photo | So the Live Photo records few seconds before you snap. But how does the phone know I’m going to snap the photo in few sec? Does that mean my camera is always filming me? | Technology | explainlikeimfive | {
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"h1xhf4m",
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"text": [
"It is sort of recording all the time, and then immediately discards frames as soon as 1.5 seconds have gone by. It's only 15 fps (frames per second) instead of 60 fps like if you recorded a video, so it's not very intensive to hold this dat... | [
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o0y3dx | Why does it take 1+ hours to charge something when electricity is almost instant? | Technology | explainlikeimfive | {
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"h1y1m4d",
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"text": [
"If you open your bathroom tap, water comes out immediately, because there was water in the pipes, and that water is under some pressure so it wants to come out if you give it an opening. So in that sense, the delivery of water is \"instant\". However, it ... | [
"url"
] | [
"url"
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o13cep | How does toothpaste get the pattern in there? | Surely it all mixes up when inside the tube? | Technology | explainlikeimfive | {
"a_id": [
"h1ypsa7"
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"text": [
"Because Toothpaste is an interesting fluid. Inside the tube when you're not squeezing it, the toothpaste stays in it's solid colour blocks. When you squeeze the tube, the shear force you apply causes the fluid to flow out of the nozzle. The toothpaste has something know... | [
"url"
] | [
"url"
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o16xop | how does your car radio know to send sound out of specific speakers? | I'm thinking of when songs are coming from only the left side, or right side, or maybe the drums sound like they're behind you. Not all stereos are set up for multiple speakers, but the same sounds come out of them. | Technology | explainlikeimfive | {
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"text": [
"Left vs Right is encoded in the FM radio signal, or music player source. Things like the drums are also that sort of an imaging evvect, plus better bass response from larger speakers in the rear.",
"Already some good answ... | [
"url"
] | [
"url"
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o1764j | Why do inconsistent computer glitches happen? | I understand "stable" glitches. By stable, I mean glitches that occur whenever you put in an unexpected input. For instance, a programmer may not have expected users to enter "0" into a field. So **every time** I enter 0, the program glitches. Or **every time** XYZ situation happens, a glitch occurs. But I don't unders... | Technology | explainlikeimfive | {
"a_id": [
"h1z6j8b",
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"text": [
"Most things about computers are deterministic, meaning they're predictable (input A results in output B). However, there are two reasons we observe instability: 1. Most *observed* instability is *actually* deterministic. That is, if you perfectly recreate... | [
"url"
] | [
"url"
] |
o18ik4 | How do CDs and DVDs work? | Technology | explainlikeimfive | {
"a_id": [
"h1zfvlq"
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"text": [
"A laser shoots at the shiny side of the disc and based on how it is reflected back, that part of the disk is read as a \"1\" or a \"0\". There are two main ways of encoding information on the disk. The first is to actually press little indentations onto this disk. This ... | [
"url"
] | [
"url"
] | |
o1h55o | What is in metadata and why would someone ask a phone company for it? | Technology | explainlikeimfive | {
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"h20slpg",
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"text": [
"You call someone. The words you say to them, that's the data. The originating phone number, the destination phone number, the time you called them - that's the metadata (the data about the data). It can tell people information without having to access the... | [
"url"
] | [
"url"
] | |
o1itns | Why does speeding up recordings make them higher pitched? | Technology | explainlikeimfive | {
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"h211k8c"
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"text": [
"Sound is a frequency of waves in the air. The closer together those waves are, the higher the pitch. When you speed up a recording of someone/something then those waves are moved closer together. If you slow down a recording those waves spread out and lower the pitch"
... | [
"url"
] | [
"url"
] | |
o1ozva | Why there exist so many USB partitions? NTFS, FAT32, Extended Journal and some OS recognize only some of them whereas other USB peripherals never have this issue. | Technology | explainlikeimfive | {
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"h220xxt",
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"text": [
"First, those are examples of *filesystems,* not partitions. A partition can have a filesystem on it, though. A lot of filesystems exist because computers have been around a long time, and some of them get phased out over time (FAT to FAT32 ... | [
"url"
] | [
"url"
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o1p3gp | Why was it so hard to bake a cookie in space? | I just red a article talking about the first cookie being baked in the space station (that was a while ago), but I don't understand why it wasn't done before and why is such a big deal now. It looks like a company put a lot of effort just to send this cookie to be baked! And also they were not able to eat it. I would l... | Technology | explainlikeimfive | {
"a_id": [
"h222996"
],
"text": [
"Pretty much all of the things you take for granted about cooking here on Earth are different in microgravity, and doubly so because of the safety concerns on a space station. In microgravity, there's nothing to hold a cookie to a pan. A system needed to be devised to ke... | [
"url"
] | [
"url"
] |
o1wjnx | How are game engines made and why are they necessary for games and why are there so many of those? | Technology | explainlikeimfive | {
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"text": [
"A game engine is a lot of reusable code that different game studios can use to make their games. Game development teams do not want to spend a lot of time reinventing the wheel with each game. Rewriting code on how to handle ... | [
"url"
] | [
"url"
] | |
o1zroo | Why does HMDI need such high bandwidth compared to Ethernet? | When we stream 4k video from Netflix for example, they recommend a minimum speed of 25 mbps.But HDMI 2.0 has a bandwidth of 18.0 Gbit/s How can we recieve 4k video with a connection speed of only 25 mbps when we need 18.0 Gbit/s to send the video to our TV? I think it is to do with compressed vs raw 4k but do we really... | Technology | explainlikeimfive | {
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"text": [
"Netflix, Youtube etc. all compress the hell out of their videos. Video compression is a lossy system, so some of the detail in the image goes away when it's compressed--the critical thing with the compression a... | [
"url"
] | [
"url"
] |
o20z4y | Why can satellite television service easily play high quality movies/shows, while satellite internet service buffers videos constantly even in low quality? | Technology | explainlikeimfive | {
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"text": [
"Satellite TV is broadcast; the satellites \"blindly\" send TV just once, and everyone watches it at the same time. Easy peasy, but you have fewer choices of what to watch (\"500 channels and noth... | [
"url"
] | [
"url"
] | |
o21wrm | How do Bone Conduction Headphones work? Are they dangerous? | Technology | explainlikeimfive | {
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"h240wgx",
"h25t8ac"
],
"text": [
"No they aren't dangerous. They use vibrations in the bone or skull to generate sound. This means you could listen to music while not having buds in and thus hear all ambient sounds aswell. Very convenient on a bike for instance. Some hearing aids will hav... | [
"url"
] | [
"url"
] | |
o24fbk | Why games made with C++ are more optimized? | C++ is the language used in almost all AAA titles. I seen youtube tests that show C++ to execute tasks faster than C# or Python for example. But i heard C is faster than C++ also, so why C++?. And what makes C or C++ faster than other languages (except assembly and machine code of course)? | Technology | explainlikeimfive | {
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],
"text": [
"Python is interpreted, not compiled, so the interpreter is effectively turning the source code into machine code as you run the program. This slows it down a whole lot, and other interpreted languages have the same issue. Wit... | [
"url"
] | [
"url"
] |
o24gkq | how can an iPhone be so hard to hack when entire banking systems and other massive companies can be successfully targeted? | Technology | explainlikeimfive | {
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"h24dd96",
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],
"text": [
"Big companies have many separate systems, many of which have to talk to each other, which means many potential vulnerabilities (often the employees themselves) and you just need one. Compare that to a single hardware device with strong encr... | [
"url"
] | [
"url"
] | |
o27iz9 | What is an api and why is it useful? | From what I understand, it is a package of software that another company creates, so that a startup can use it and doesn’t have to code as much backend?? I’m only partially understanding this... edit: thanks everyone, this conversation has helped me understand the nuance | Technology | explainlikeimfive | {
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"ELI5 Answer: Th... | [
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o2eou5 | Why are planes grounded when there is fog but they can fly through fog and clouds. | I dont understand when they have control towers and such advanced technology why fog can ground planes. Not much is done by eyesight now surely? | Technology | explainlikeimfive | {
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"h2617p4",
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"text": [
"Flying and landing are not the same thing. Flying involves working hard to stay far away anything. In that system, a cloud or fog isn't a problem. Alas landing can't work without touching the ground, gently. That gentile touc... | [
"url"
] | [
"url"
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o2ko3b | What does 'Legitimate Interest' mean/include on cookie banners? | Is there an agreed definition of what can be considered a site's 'legitimate interest', and if yes, what is it? Or is it just the wild west, i.e. 'this is my site and I say it's in my legitimate interest to maximise my income by tracking and selling your data in exchange for my content'? | Technology | explainlikeimfive | {
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"h27pc0u",
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],
"text": [
"To give an over-simplified explanation that its appropriate for this subreddit: \"Legitimate interests\" are defined as part of the GDPR (the General Data Protection Regulation that governs data privacy throughout Europe), and they are one ... | [
"url"
] | [
"url"
] |
o2m83j | How can videogames render many frames of high-quality 3D graphics every second, but rendering just one image in a 3D software like Blender can take hours? | Technology | explainlikeimfive | {
"a_id": [
"h273yu0",
"h272zd4"
],
"text": [
"Video games cheat, blender doesn't. As you said, video games need to render their world in just 0.03 seconds. That doesn't leave a lot of room for fancy tricks and detailed calculations. If you really stop and look at a video game world you'll quickly not... | [
"url"
] | [
"url"
] | |
o2mdny | when a video you're streaming is buffering, why does it load faster when you rewind a little as opposed to just letting it buffer on its own? | Technology | explainlikeimfive | {
"a_id": [
"h272xdr",
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],
"text": [
"Id imagine 1 of 2 things is happening. 1. Your restarting the buffer/download and it could be getting a better connection the second time. 2. Its an illusion and its not faster you’ve just wasted enough time rewinding/waiting for it to buffer that when yo... | [
"url"
] | [
"url"
] | |
o2us80 | What is a travel router and how does it work? | I hear about people using travel routers to connect devices to hotel wifi or in dorm rooms. What is a travel router and what does it do differently than just connecting to the provided wifi? TIA! | Technology | explainlikeimfive | {
"a_id": [
"h28ki0k",
"h28grxf"
],
"text": [
"As someone that has used these here are the scenarios for where I bring my own router and its configuration: Configuration: * The Router can connect to an available WiFi network or connect to a wired network. * It then makes a VPN connection back to my of... | [
"url"
] | [
"url"
] |
o2wngy | What do people mean when they say you don't actually own the games you buy digitally? | I guess this comes under both technology and economics. But yeah I don't get it. You pay money for a game, you now own that game. That's how a transaction works. If I don't own it what on earth did I pay all that money for? How can companies get away with this? | Technology | explainlikeimfive | {
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"h28kmqk",
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"h28l76v",
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],
"text": [
"You own a license to play said game. You don’t own a copy of the game to do what you like with it.",
"Imagine you wake up tomorrow and Steam says, “we made enough money, we quit, Steam has be... | [
"url"
] | [
"url"
] |
o32z8v | On the personnel list of music albums, “mixing”, “engineering” and “production” are listed as 3 different categories. What’s the difference between them? | Technology | explainlikeimfive | {
"a_id": [
"h29lx1y"
],
"text": [
"The producer works on the music itself (arrangement, lyrics, etc.), the engineer records, and the mixer mixes the recorded tracks. If a programmer is mentioned they are involved with sequencing and synthesis usually."
],
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8
],
"text_urls": [
[]... | [
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o3b6g0 | why is asphalt used on roads ? | Technology | explainlikeimfive | {
"a_id": [
"h2azk4z",
"h2azdru",
"h2b0fa9",
"h2bt801",
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],
"text": [
"It's cheap (it's essentially just the crap leftover from refining oil) and much easier to apply than concrete.",
"Predominantly because it gives a very smooth finish. That's going to be quiter for the vehic... | [
"url"
] | [
"url"
] | |
o3gyuz | What makes thermal wear warm? Why is often polyester made? | Technology | explainlikeimfive | {
"a_id": [
"h2bqfkt",
"h2chtbj",
"h2btjuu"
],
"text": [
"Good thermal wear works by a combination of capturing and holding the body heat while transporting moisture towards the outside.",
"It traps a lot of air. Air is a very bad conductor of heat i.e. a good insulator. Generally thermal insu... | [
"url"
] | [
"url"
] | |
o3hkcc | Why do the televisions in the store always have amazing pictures but when you get home and pop in your favorite movie...? | Shopping for a new TV, this is mild infuriating. | Technology | explainlikeimfive | {
"a_id": [
"h2btyoq"
],
"text": [
"TVs typically need to be calibrated after you pull them out of the box. They look great in the store because they are specifically calibrated to make the demo video used to show off the TV look as good as possible. However, those demos don't translate to every day TV, m... | [
"url"
] | [
"url"
] |
o3jml9 | I’ve always understood that computers work in binary. But programming languages use letters, numbers, symbols, and punctuation. How does the program get translated in binary that the computer understands? | Technology | explainlikeimfive | {
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"h2c92gn",
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"h2c8yqr",
"h2c935r",
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],
"text": [
"Most of the answers here are correct, but it's also important to note that all the letters, numbers and symbols you enter with your keyboard are also in binary. Each character is represented by a number, for ex... | [
"url"
] | [
"url"
] | |
o3krqt | - why is airplane internet so unstable? | Technology | explainlikeimfive | {
"a_id": [
"h2cax8y"
],
"text": [
"Oh wow. This is my job! So imagine every piece of information goes through hoops to get to the server and back to you. On an airplane when you fly above the clouds the information must go through a satellite, and the more hoops there is to jump the more possibilities fo... | [
"url"
] | [
"url"
] | |
o3n011 | What’s the difference between high quality and low quality speakers? What’s actually happening that causes one speaker to sound super crisp while another speaker sounds muffled? | Technology | explainlikeimfive | {
"a_id": [
"h2cpmfy",
"h2cqrs2"
],
"text": [
"The main measurable things are frequency response, distortion, resonances, and dispersion. Bad speakers have a poor frequency response so certain frequencies are louder than intended, such as boomy bass or high pitch noises. This is very hard to achieve a... | [
"url"
] | [
"url"
] | |
o3s2i6 | If all noise cancelling headphones do is reverse the soundwaves coming into them in order to ‘cancel’ the background noise, why can’t they cancel a sine wave completely? | Technology | explainlikeimfive | {
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"h2deuvu",
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],
"text": [
"They can. But only at very specific spots and, since your ears capture sound over an area, they can't completely make you not hear it. If you have a pure sine wave signal (a pure tone) and broadcast the exact o... | [
"url"
] | [
"url"
] | |
o3xqn1 | targeted marketing | Have you ever been talking to someone about a specific product or food and then the next day, someone else is starting to see advertising on their phones for that very thing? I was recently talking to my husband about a German sausage shop called the Sausage Man for a BBQ and then the next day, my brother-in-law starte... | Technology | explainlikeimfive | {
"a_id": [
"h2ecmug",
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"h2edc40"
],
"text": [
"Sometimes it is coincidence! But technically, the apps on the devices will have pre-configured rules which will use phrases heard in this case to target advertisements or offers or rewards for you. This is a very high level explanation. In ... | [
"url"
] | [
"url"
] |
o400vn | How does gpu and cpu work by comparing them to a different object to explain their similar functions | What I mean is that if you can think of an object to compare them to and explain their function so it will be easier for me to understand. Like comparing a chest's size to a phone's storage and how much a washing machine can wash clothes comparing to RAM. Despite learning about CPU's and GPU's description, I still can'... | Technology | explainlikeimfive | {
"a_id": [
"h2eoco0",
"h2eoaz6",
"h2eo9qy"
],
"text": [
"A cpu is like a university professor and a GPU I’d like a room of 1000 children. The professor can solve difficult problems but he can only really work on a small number of things at a time. The room full of children can solve lots of simpl... | [
"url"
] | [
"url"
] |
o43wgg | What is the difference between 5.1, 7.1 and 3D audio and which is better? | I see alot of these terms being used when selling headets and also used by game developers, but never really knew the difference between them. | Technology | explainlikeimfive | {
"a_id": [
"h2f4or2",
"h2f6624",
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],
"text": [
"It all pretty much only describes your sound setup and therefor what kind of sound processing you want to take place. Ignoring 3D for a second cause honestly I don't know much about it. But 5.1 and 7.1 is pretty much the same thing with it ... | [
"url"
] | [
"url"
] |
o49lwf | If HDR is just a monitor having better contrast, why do games/videos have to specifically support it? | I'd imagine the game's graphics engine for example just saying which areas are bright and which areas are dark and the monitor doing it's best to display those differences, with HDR Monitors just being better at it. Where am I wrong? Like why can a monitors contrast get better and better and still support the same game... | Technology | explainlikeimfive | {
"a_id": [
"h2g0l7n"
],
"text": [
"The recorded and transmitted video data has to conform to a specific set of standards that constrain the possible quality you can achieve. To get HDR, you need to use a suitable standard such as Dolby Video, which adds more precision to each pixel than would be possible... | [
"url"
] | [
"url"
] |
o4bb9y | how does the storage and RAM memory limitations work | Manufacturers can't build a 100TB flash drive or a 256GB RAM memory for desktop computers? Why popular modern computers only have 1TB of storage and 16gb of RAM? | Technology | explainlikeimfive | {
"a_id": [
"h2gagxy",
"h2gbk3j",
"h2gb2td"
],
"text": [
"Cost. There are limited usability with those kind of specifications, however with special use cases they do have those kind of specifications (machine learning, high performance computing etc.). You are also limited by what the cpu can addr... | [
"url"
] | [
"url"
] |
o4da8h | Can the internet run out of space? | If we keep creating new websites and never stop uploading new content to the internet, there must be some sort of upper limit or maximum load. What is that amount, and how will we know when we’ve reached it? Or is the internet infinite? | Technology | explainlikeimfive | {
"a_id": [
"h2gkwtc",
"h2gkyl7",
"h2gmse5"
],
"text": [
"I might be wrong but iirc, the “internet” is just a network that connects computers. So technically each website or video you see is actually saved on a server computer at a physical location, just like you would save photos on your phone o... | [
"url"
] | [
"url"
] |
o4jc9l | How can a poorly coded videogame "brick" your computer or console? | Technology | explainlikeimfive | {
"a_id": [
"h2hr1oq",
"h2hwqoz",
"h2hseel",
"h2hxkme"
],
"text": [
"I'm not sure this is even possible. The only ways I can see software bricking a system is if the software has OS or kernel-level permissions. Which video games never do. Pretty much any software that tries to get those permis... | [
"url"
] | [
"url"
] | |
o4rtj1 | what is rollback in fighting games and how come it makes it feel like there isn’t really any lag? | Technology | explainlikeimfive | {
"a_id": [
"h2ivb3q",
"h2jddzz"
],
"text": [
"When you play online it takes time for control inputs to get from player A to player B and vice versa. In a rollback scenario, player B's computer is constantly trying to predict what input it will receive from player A and animates the game based on the ... | [
"url"
] | [
"url"
] | |
o4xq3f | What’s the benefit of a seed box in relation to torrenting? | I know how torrenting works, and I guess I know what a seed box is for the most part. But where I’m foggy is exactly why people use them and what their benefit is over not using one. Every explanation I’ve looked up just doesn’t clear that up for some reason. | Technology | explainlikeimfive | {
"a_id": [
"h2jols1"
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"text": [
"A seed box is an external box that is dedicated to seeding torrent files. They are usually VMs on an external server. People use them because many private torrent trackers require seed to leech ratios, so you need to seed a torrent for longer than you leech (usually at ... | [
"url"
] | [
"url"
] |
o58cry | During a live televised sports match, how do they get the replay footage edited in so quickly? | I’m curious as to how a ref will blow their whistle and get instant replay footage within seconds. Can someone explain this process to me? | Technology | explainlikeimfive | {
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],
"text": [
"There's a whole room (or trail... | [
"url"
] | [
"url"
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o5dxmx | Why are green screens green? | Technology | explainlikeimfive | {
"a_id": [
"h2m7w0p",
"h2m85o3",
"h2mb6i2",
"h2mkce7"
],
"text": [
"It's a color that stands out and isn't usually a part of the actors wardrobe etc. so that you can tell the computer that that specific shade of green is what needs to be replaced with CGI.",
"The color green they use does... | [
"url"
] | [
"url"
] | |
o5euq9 | How do so many satellites stay in obit without crashing | Technology | explainlikeimfive | {
"a_id": [
"h2mftwd",
"h2merzp",
"h2mclux"
],
"text": [
"How do about 8 billion people walk around the Earth without constantly walking into each other? Space is a lot bigger than the surface of the Earth.",
"Think about how much sky planes occupy. At any given time, there are up to 20,000 pl... | [
"url"
] | [
"url"
] | |
o5kuyv | How is a SIM card identified as switched off and not just outside of a phone instead? | Like, I lost my sim card. I'm sure it's somewhere in my home. I have a ton of old phones. When I call the number it says switch off, I wanna know if it's the same even if the sim is outside of a mobile? How does it all work. | Technology | explainlikeimfive | {
"a_id": [
"h2n3bwq"
],
"text": [
"does it say \"the phone is switched off\" or a different message? It's quite likely that it's just a generic network message. they can't see if a sim is in a turned-off phone or if it's sat on a shelf, they just know they can't connect to a phone that has that sim card ... | [
"url"
] | [
"url"
] |
o5o9mj | How do they upgrade a computer, that has been calculating something for decades? | If a computer has been for example serching for a really big prime number for decades, how do they upgrade it. Do they stop the calculation or what? | Technology | explainlikeimfive | {
"a_id": [
"h2nlb4b",
"h2nm1zp",
"h2nlc9x"
],
"text": [
"The application is designed for it. It is able to save its work and resume from that save. There's not really any trick to this, just good software design.",
"If you have anything that runs for at least days, you want to design your pro... | [
"url"
] | [
"url"
] |
o5tmxu | What is happening when my phone claims I have good service (4-5 bars LTE) but my service actually sucks? | This seems to happen all the time. Regardless of how good my service actually is, I’m always at a few bars of LTE. | Technology | explainlikeimfive | {
"a_id": [
"h2ogl6o",
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"h2onidg"
],
"text": [
"Connection to the tower is good but the overall usage at the tower is high making everyone's connection suck.",
"There is no actual standard for what the bars showing the connection actually mean. It is up to each phone m... | [
"url"
] | [
"url"
] |
o5yyqm | How do 'pirated' license keys of, for example Windows, work on multiple different computers, regardless of where they are or how old the key is? | So, we have probably all at one point seen those free activation keys for Windows, that seem to work on multiple different computers, even several years after they were posted. How does that work? Is it a sort of unlimited, universal key that works for everyone? It always amazed me that a 10 year old Windows XP key cou... | Technology | explainlikeimfive | {
"a_id": [
"h2pc6rl"
],
"text": [
"For XP, Windows 95 and other older versions the key wasn't actually all that unique, it just had to fit into a specific pattern. For example [111-1111111]( URL_0 ) was a valid Windows 95 key because the last 7 digits add up to a multiple of 7"
],
"score": [
9
... | [
"url"
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"url"
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o64d2f | Why do some electronic devices use 12V DC input, when the internal circuitry can run off of 3.3V or 5V just fine? | Is it some form of way to shorten its lifespan? It sometimes gets annoying when other lower voltage devices use the same AC jack, and if you plug in the wrong adapter, it could burn the device. Or is it because of other high-power components? | Technology | explainlikeimfive | {
"a_id": [
"h2q8wmo"
],
"text": [
"Most devices generate all of those different voltages with their own circuitry because they can control how noise free it is, the efficiencies, the maximum current capability, all while only requiring a single external voltage to do it. This makes it simpler for other p... | [
"url"
] | [
"url"
] |
o66loz | how can multiple cell phone companies claim to have the best 5g service and coverage? | Technology | explainlikeimfive | {
"a_id": [
"h2qo8zh",
"h2qmrll",
"h2qonu9",
"h2qn7tn"
],
"text": [
"By using different measures. Some use coverage in terms of ground covered. Some use coverage in terms of number of people covered. Then they could be counting number of dropped data connections or average data speed. Despite ... | [
"url"
] | [
"url"
] | |
o6bwd9 | When you lived in the 90s and early 2000s and saw a picture or video taken in the 90's, it always looked recent, but when you see pictures and videos from the 90's and 2000s now, they all look old as fuck. Why? | Technology | explainlikeimfive | {
"a_id": [
"h2rfizx",
"h2rfnld",
"h2rjewj"
],
"text": [
"Because we now have newer technology meaning that the quality of photos/videos are better. We are used to seeing better quality images so anything from the 90's now looks old because it is lower quality.",
"Analog photos normally had qu... | [
"url"
] | [
"url"
] | |
o6jyuh | How do televisions work? | More specifically how do pixels work? How do they know what colour to display at any given time and move with such fluidity? | Technology | explainlikeimfive | {
"a_id": [
"h2t1iku"
],
"text": [
"I think the exact question is \"how do displays work?\" The most common type of display, LCD, are made of multiple layer. A backlight, a color filter, and the LC. The backlight is what controls the brightness of the display. The color filter, filters the backlight's lig... | [
"url"
] | [
"url"
] |
o6ovpb | why do fluorescent lights make so much noise? | I mean, all lights make noise but why are flourescent lights in particular so damn loud? | Technology | explainlikeimfive | {
"a_id": [
"h2ttt94"
],
"text": [
"Fluorescent lights, because of how they work, require something called a *ballast* to function. A ballast is an electronic component that acts to limit the amount of current flowing through a circuit. Without this, a fluorescent light would draw more and more current in... | [
"url"
] | [
"url"
] |
o6pb5t | DDL's (Direct Download Link) | Wikipedia says that they are "a hyperlink that points to a location within the Internet where the user can download a file.". So does that mean it's just a link to another website where there's a download button, or it's the download button itself, or what? Is right-clicking then clicking "save as" a DDL? Just kinda ha... | Technology | explainlikeimfive | {
"a_id": [
"h2tvxtm"
],
"text": [
"Direct download would be a link that points exactly to the item you're trying to download. It could be the same as the item that a download button on another website gives or leads to, but it isn't necessarily the same as the download button itself (which could be a red... | [
"url"
] | [
"url"
] |
o6samw | How do computers add gain to audio? (do they really?) | When you plug a mic into a computer, the analogue signal is being amplified, then digitzed- but many programs allow you to add extra gain to the already digitized audio. Since gain is a matter of boosting voltage, what does digital gain boosting actually involve? Is it really adding "gain," or is it actually just incre... | Technology | explainlikeimfive | {
"a_id": [
"h2ugm60",
"h2vqwss"
],
"text": [
"You know how you can make a picture brighter after you take it? It's basically that, but with sound. You're just changing the data so that it represents a louder version of the same sound (*/brighter version of the same picture*) The picture doesn't actua... | [
"url"
] | [
"url"
] |
o7033i | What makes some motors stronger or weaker than others despite spinning at the same speed? | I understand the difference in batteries (more aH doesn't mean a higher v). To be clear, I'm not referring to stepper motors or those with a constant speed | Technology | explainlikeimfive | {
"a_id": [
"h2vozct"
],
"text": [
"Speed has little to do with power. More winding wires inside the motor give more torque at a given speed and current, but take higher voltage to drive that current. Special winding arrangements, like the motors you excluded, have more complex effects."
],
"score": [... | [
"url"
] | [
"url"
] |
o70dgi | Why can different email service providers (e.g. gmail, Yahoo! Mail) send emails to one another but instant messaging apps (e.g. Telegram, WhatsApp) cannot send messages to each other? | Technology | explainlikeimfive | {
"a_id": [
"h2vpntc",
"h2vpqby",
"h2vs232",
"h2vprkk"
],
"text": [
"Email business models, like telephone ones before them, built on the idea of interconnection. App based messaging is a different business model,based on seclusion in an ad ecosystem. They could technically interconnect, bwt t... | [
"url"
] | [
"url"
] | |
o71d4q | Why do modern CPUs have such little cache? | Modern CPUs ( I'll use the 5950x for example) only have around 64mb of L3 cache. Why can't we just put gigabytes worth? I always wondered why they don't just build larger CPUs to fit the cache. Or maybe with the shrinking of components, they could fit larger amounts in the same size chip. | Technology | explainlikeimfive | {
"a_id": [
"h2vyao1",
"h2vwaii",
"h2vw0a7",
"h2vxnc6",
"h2vwbo1",
"h2wbfb4"
],
"text": [
"The point of a local cache is that it have a very low latency. You could have more cache in the CPU but this would probably give a higher latency. Imagine you are drinking lemonade and have a sma... | [
"url"
] | [
"url"
] |
o75knh | how do they recreate 0 gravity in movies? | Like in movies taking place in space. How do they use special effects to make the actors float? Been on my mind lately. | Technology | explainlikeimfive | {
"a_id": [
"h2wonse"
],
"text": [
"There are quite a few different ways to do it, with various tradeoffs. A couple common ones: * Props + editing. Use wires or other rigging to suspend the actor. Edit the rigging out of the shot. Fairly easy, lots of different ways to actually do the rigging. You can als... | [
"url"
] | [
"url"
] |
o7frk6 | How were early circuit boards for chips made? | Technology | explainlikeimfive | {
"a_id": [
"h2yj00c"
],
"text": [
"Originally they were hand wired/soldered. Then there was a technique called \"wire wrapping\" that didn't require soldering, but it wasn't very reliable. Connections were made by wrapping thin wires around small metal posts, which was first done by hand and then by mach... | [
"url"
] | [
"url"
] | |
o7l55x | why can't older and / or smaller-install-size games be loaded entirely into RAM to have nigh-zero load times? | **EDIT:** I just want to say thanks to everyone who's responded, the replies are very enlightening and filled in some gaps in my knowledge re design constraints and, well, what an install actually *is* vs what happens when it's loaded into RAM and that there's more involved than I initially understood. As I understand ... | Technology | explainlikeimfive | {
"a_id": [
"h2zf395",
"h2zg86g",
"h2zcyog",
"h2zjm0y",
"h2zo4c2"
],
"text": [
"There is nothing stopping a game (or any application) from deciding to load everything into RAM from storage when its first run and then to just sit there holding onto RAM until you close it. (Apart from obviou... | [
"url"
] | [
"url"
] |
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