q_id stringlengths 6 6 | title stringlengths 4 294 | selftext stringlengths 0 2.48k | category stringclasses 1
value | subreddit stringclasses 1
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i4pv9r | Why do the pop ups on dodgy adult/ streaming websites sometimes take you to legitimate sites like Amazon or Netflix? | Surely those big legitimate businesses aren’t paying to be a pop-up tab on illegal streaming/ adult websites? | Technology | explainlikeimfive | {
"a_id": [
"g0jrbbx",
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"text": [
"they do not. it is most likely to take you to a website that looks like it so they can take your information.",
"Wait we were supposed to click on those? I was missing out all these years."
],
"score": [
21,
8
],
"text_urls": [
[],... | [
"url"
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"url"
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i4q0va | What makes a 64bit OS better than a 32bit, and how does it relate to a bit? | Technology | explainlikeimfive | {
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"text": [
"Imagine that you could only count using your fingers. If I asked you to cou... | [
"url"
] | [
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i4t59g | Why the iPhone 7 can record 4K video, and record at 240 FPS, but not at the same time. | The iPhone 7 can record 4K video at 30FPS, or 720p video at 240FPS. Why can't it record 4K at 240FPS? | Technology | explainlikeimfive | {
"a_id": [
"g0kmvk7"
],
"text": [
"it's not neccessarily about file size, the clips need not be very long and slow motion footage can usually be compressed very efficiently. it's about data rate. uncompressed video, the way it comes out of the image sensor (this is simplified) produces width x height x f... | [
"url"
] | [
"url"
] |
i4uy69 | - Suppose we search something using Google and click on a result. Supposing we just browse that site and search for things there, without giving any personal information directly, what informations can that company extract from our visit that can be used to track us? | Technology | explainlikeimfive | {
"a_id": [
"g0kvsm2"
],
"text": [
"Firstly you give away your IP address which is linked to your Internet Service Provider and very often to your rough location within your city. The browser is also very helpful in giving away information to the website. It informs the website you came from google and th... | [
"url"
] | [
"url"
] | |
i528m4 | Why do we need different programming languages? | Technology | explainlikeimfive | {
"a_id": [
"g0mawqn",
"g0mbdce",
"g0mas87"
],
"text": [
"For when you want to do different stuff, or are fed up with an existing language's shortcomings. That's... kind of the best response you'll get that's even remotely suitable for /r/eli5, sorry. You have languages like Javascript which are u... | [
"url"
] | [
"url"
] | |
i543wz | Green screens, why green and not any other color? | Technology | explainlikeimfive | {
"a_id": [
"g0mka2f",
"g0mkcds"
],
"text": [
"It's not only green. Blue (and other hues) are also used in \"green screen\" technology in movie special effects. It's just that green (or blue) are colors that are the furthest from human skin tones, and therefore the least likely to \"remove\" or overla... | [
"url"
] | [
"url"
] | |
i58lbg | How does a higher refresh rate in cell phones make them superior? | Technology | explainlikeimfive | {
"a_id": [
"g0nj60z"
],
"text": [
"because higher refresh rate means smoother animation for interacting with your phone. think about it this way. 60 hz = 60 pictures in 1 second. while 90 hz = 90 pictures in a second. therefore, before the image changes every 0.016second, now it's 0.011. some people say ... | [
"url"
] | [
"url"
] | |
i59ays | how can laptops fit over 1tb of storage and 16gb of ram in a tiny chill while PCs need massive ram sticks and often large SSDs? Why isn’t PC ram as small? | Technology | explainlikeimfive | {
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"g0ni8n0",
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"g0nju6s",
"g0o0bte",
"g0nmkr1"
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"text": [
"The main reasons why PCs are larger are ease of access and cooling. Cooling is very important to improve performance and durability. If you make everything small and cram it into a small space, you can’t have g... | [
"url"
] | [
"url"
] | |
i5aphb | Why does research take so much computing power? | I always hear about scientific research needing crazy amounts of computing power but I have no idea why. As someone with an interest in hardware, I’ve always been intrigued by this. | Technology | explainlikeimfive | {
"a_id": [
"g0nqtob",
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"g0nt8o3",
"g0p1ekl",
"g0nuxu8"
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"text": [
"A lot of of problems that come up in science are not solvable by straightforward algebraic methods. Things like protein folding, fluid dynamics, stress/strain, gravity/orbits with multiple bodies etc end up wit... | [
"url"
] | [
"url"
] |
i5ce1s | why do disc copies of videogames take up as much storage as digital copies? | Technology | explainlikeimfive | {
"a_id": [
"g0o1vub",
"g0o14yg"
],
"text": [
"Because the disc is only used to install the data onto your console's hard disk. Unlike previous console generations the game doesn't read data from the disc directly. Once the game is installed the disc is only required as a license check. It checks the ... | [
"url"
] | [
"url"
] | |
i5ez68 | - A Browser has two modes: normal and private (incognito). From the point of a site trying to track a user what exactly changes? What informations the other side cannot track from the user when they are browsing incognito? | Technology | explainlikeimfive | {
"a_id": [
"g0ommlz",
"g0ox9zp"
],
"text": [
"Not a thing changes. Incognito Mode only changes what data the browser stores *locally* -- it can't and doesn't control what data the remote site tracks. Edit: Technically, the remote site won't be able to read whatever cookies your regular session might ... | [
"url"
] | [
"url"
] | |
i5fw81 | If music streaming services like Spotify can catalogue and offer the vast majority of popular music internationally regardless of label, why are there no video streaming services that have the vast majority of TV shows and movies on one platform too? | I could imagine piracy would decrease if people could be offered video content of the same variety and volume as music streaming on a single platform, bundled into one monthly fee. It seems like platform exclusives are a thing of the past for music, like when Beyonce initially streamed Lemonade only on Tidal. Why do I ... | Technology | explainlikeimfive | {
"a_id": [
"g0ozjeo"
],
"text": [
"Spotify does not have an internationally open catalogue, it just so happens that what YOU listen to is licensed internationally. Some songs/albums on Spotify are available only within certain regions. Beyoncé streamed to Tidal because her husband OWNS Tidal, it would ma... | [
"url"
] | [
"url"
] |
i5hmxi | How can a government ban specific web sites | I don't mean legally. How would the US government practically block a web site? Do they just tell all of the service providers to block that traffic, or are they in control of the actual wires that bring the traffic in from overseas? What about satellite internet? | Technology | explainlikeimfive | {
"a_id": [
"g0p8afb"
],
"text": [
"Think of it this way. When your computer tries to access a website, it sends a message packet to the website host server. It's like a letter you send to some one requesting something from them. Now if the server wishes to give you access, they will send the data( the we... | [
"url"
] | [
"url"
] |
i5j2mr | How is glass an isolator but fibreglass is used for e.g. fast internet? | This question popped up while reading this physics article which mentioned that glass is an isolator. Please correct me if my way of thinking is wrong! Admittedly I have super basic understanding of physics and no understanding of how internet access/networks work... looking forward to your responses! | Technology | explainlikeimfive | {
"a_id": [
"g0pgku3",
"g0phg2h",
"g0pnkxc"
],
"text": [
"Fiber-optic internet doesn't use electricity, it uses light. A thin glass fiber will keep a beam of light within itself over long distances, and the signal travels at the speed of light. So electric data is turned into flashes of light at o... | [
"url"
] | [
"url"
] |
i5ly61 | Why is it when you watch a tv show or a movie at home, when characters are talking it is really quiet, but music and sound effects are really loud? | Technology | explainlikeimfive | {
"a_id": [
"g0q36pd",
"g0q3bww",
"g0qdi1i",
"g0qbgxl",
"g0qj55t"
],
"text": [
"movies are mixed in surround sound (5.1 or higher) dialogue is usually in the center/ sfx and others in rear channels and left right tvs that only have one or two speakers can't properly play 5.1 so it down mix... | [
"url"
] | [
"url"
] | |
i5mdrf | How hard is it to create stable game servers? | It seems like every new game that is released have problems with too many users in comparison to plan, making servers crashing or creating lag. Most recenty Fall Guys and Wolcen from my experience. Or a new release aside, take alomst any excisting game - most has server lag from time to time. I don’t know anything abou... | Technology | explainlikeimfive | {
"a_id": [
"g0q3ih7",
"g0q3owv"
],
"text": [
"Technically, not that hard. There are solutions, as you mention, from several tech experts. Business-wise, it's super hard. All these technical soluyions cost money. The company has spent tons on writing and deploying the game. They finally have some cash... | [
"url"
] | [
"url"
] |
i5oa3k | How are the new, smaller SSDs different from regular SSDs? | [Example]( URL_1 ). How do they differ from the [normal]( URL_0 ) SSD? | Technology | explainlikeimfive | {
"a_id": [
"g0qg36k"
],
"text": [
"Those smaller SSDs connect to a special port on the motherboard, the m.2 port. Electrically, you have two different types: a regular SATA m.2 drive, which is in effect no different from a \"normal\" SSD other than the port it plugs into. However, the m.2 slot also allow... | [
"url"
] | [
"url"
] |
i5r9ae | Why aren’t all disc-based video game systems backwards compatible? | Technology | explainlikeimfive | {
"a_id": [
"g0r16xd"
],
"text": [
"Different operating systems. Don't think different languages think different dialects. They are similar enough that some data can be extracted but not enough to make complete sense making the game unplayable."
],
"score": [
5
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
i5ribs | How are phones and other electronics waterproof only up to a certain depth, which is usually shallow like 3m at most? | Technology | explainlikeimfive | {
"a_id": [
"g0r2wb8",
"g0r5jo6",
"g0razby",
"g0r2u1h"
],
"text": [
"Water starts pushing harder and harder the deeper you go (pressure). They can only seal up a watch or a smartphone so tightly while keeping it sleek and stylish, as well as practical. The depth rating is because the pressure ... | [
"url"
] | [
"url"
] | |
i5t1e4 | - How do refrigerators and freezers keep things cold? | Technology | explainlikeimfive | {
"a_id": [
"g0rdkfo"
],
"text": [
"If you compress some gas a lot, it will liquify. It will heat up quite a bit as it does. If you then wait a bit until it returns to its original temperature, you can then let it expand and boil off back into a gas. This process causes it to cool off significantly. Refri... | [
"url"
] | [
"url"
] | |
i5u144 | why do computers have to restart in order to install an update? | Technology | explainlikeimfive | {
"a_id": [
"g0rjyvj",
"g0rzqc3",
"g0rlnlt"
],
"text": [
"Because you can't make critical changes to a computer while it is still in this. This is equivalent to replacing your car engine while the car is still running.",
"computers don't have to do that. this is a software limitation that's no... | [
"url"
] | [
"url"
] | |
i5w6eo | Why do most famous tech youtubers these days recommend/support AMD processor laptops over intel ones? | Technology | explainlikeimfive | {
"a_id": [
"g0rvwl3",
"g0rwng0"
],
"text": [
"Ams and Intel are competitors each battling over the budget/mod tier/enthousiast market. AMD released the ryzen series not only being better than Intel but also kicking hem out of the market because they are cheaper and more powerful than Intel processors... | [
"url"
] | [
"url"
] | |
i5xz0t | Why are these realtime high resolution colorful super X-Rays from the airport not used for medical X-Raying? | Technology | explainlikeimfive | {
"a_id": [
"g0s63ep",
"g0syxpp",
"g0szkh9",
"g0s63sg"
],
"text": [
"X-rays at the airport are trying to look through your clothes. They are not trying to go deep into the skin. X-rays at a hospital have to be able to go through the skin to see what's underneath, often with some level of adjus... | [
"url"
] | [
"url"
] | |
i5yg7x | How do QR Codes work ? | Technology | explainlikeimfive | {
"a_id": [
"g0s8xql"
],
"text": [
"A QR code is like a font that only computers can read. You scan it with a camera (the squares in the corners are used by the computer to read the boundaries), and it translates the QR code into text. If the text is a web address, most QR code readers automatically open ... | [
"url"
] | [
"url"
] | |
i5yvu4 | How is it that ads load in 4k immediately but my 720p stream struggles to load? | Technology | explainlikeimfive | {
"a_id": [
"g0sbj9u"
],
"text": [
"I’m no expert but one theory is that the app (I.e. YouTube for example) stores data on your mobile, like your password, username, your downloaded videos, etc as “Cache”. This cache can also store the ads that would normally be recommended to you by your preferences. Ple... | [
"url"
] | [
"url"
] | |
i5yxwv | Why do electronic screens look like they're having a seizure whenever you take a video or a picture of them? | Technology | explainlikeimfive | {
"a_id": [
"g0se1f3",
"g0sm35u"
],
"text": [
"Because they are being refreshed a certain number of times per second. The device you are using to record shoots a certain number of frames per second as well. The chances of these rates aligning is very small. Therefore, you might capture empty frames so... | [
"url"
] | [
"url"
] | |
i61ng9 | How are some electronic scales able to measure body fat or bone density? | Technology | explainlikeimfive | {
"a_id": [
"g0st7vj"
],
"text": [
"Body fat scales use a technology called bioelectrical impedance analysis to measure body fat. A small, unnoticeable electrical current is sent from one foot, up one leg and down the other leg. Fat is a poor conductor of electricity compared to other components of the bo... | [
"url"
] | [
"url"
] | |
i61tvd | What is an electrical ground, and why do electronics need them? | I never understood the concept of an electrical ground. And while working on my truck, I notice almost all of the fuses and switches have positive, negative, and ground. But if a tail lamp or bulb wire is touching ground, that can cause it to not work. | Technology | explainlikeimfive | {
"a_id": [
"g0sxrh3",
"g0sy0r9",
"g0szrxg"
],
"text": [
"A ground in electronic devices is essentially a path through which electricity can flow should an accidental connection be made between the intended electric circuit and the case, frame, or other parts of the product that can carry electric... | [
"url"
] | [
"url"
] |
i65rld | What exactly is the difference between a powerful pc and a Server? | Technology | explainlikeimfive | {
"a_id": [
"g0tkine",
"g0tknxx",
"g0tm5s7",
"g0tl5w9",
"g0up8lq"
],
"text": [
"Purpose. A powerful pc is used to perform tasks for a single user. A server is meant to facilitate a service for multiple users and stay powered on for a long time. Powerful PC do job for one person real quick.... | [
"url"
] | [
"url"
] | |
i6ahdp | How do movies shot on film have sound? | Technology | explainlikeimfive | {
"a_id": [
"g0ulpvo",
"g0uhdcl"
],
"text": [
"For a long time the film had a visual audio track on one side, it's a wavy sine wave looking thing that essentally works the same way as a record groove does, only using light. URL_0",
"the audio was recorded using a phonograph and was played simultan... | [
"url"
] | [
"url"
] | |
i6ahx9 | Why do networks share cell towers | I seen ads for cheap cell service like ting or mint using T-Mobile cell towers. How is it financially viable for networks to share the same service but one is selling for significantly cheaper, especially since these cheap services often say that their service is just as good? | Technology | explainlikeimfive | {
"a_id": [
"g0uiimx"
],
"text": [
"For one, wireless carriers oversubscribe the shit out of their network. If they can build a network that can support 500 concurrent calls, they’ll sell 5000 user accounts knowing that not everyone is going to be using the system all the time. Selling off capacity to an ... | [
"url"
] | [
"url"
] |
i6cqll | How and why is the volume so much louder in video commercials? | Technology | explainlikeimfive | {
"a_id": [
"g0v4s4w"
],
"text": [
"All sound is a wave. There are peaks and lows to the wave. The difference between the highest and lowest point in the wave is called dynamic range. Using something called compression you can reduce the range of the sound. This can bring the lows up higher making the low... | [
"url"
] | [
"url"
] | |
i6e2is | How are password storing systems so secure? I’m hesitant to put all of my passwords to everything in a single place, but they are widely regarded as safe. How come they are supposedly harder to hack than a password on an individual website? | I’m really hesitant to use one because I feel like if someone gets access to it then my entire life would be exposed, but I’ve been told that’s essentially “impossible” and I’ve often seen them endorsed by computer security experts and people who know what they’re talking about. | Technology | explainlikeimfive | {
"a_id": [
"g0v6pkg",
"g0vbjn8",
"g0v8nt2"
],
"text": [
"> I’m really hesitant to use one because I feel like if someone gets access to it then my entire life would be exposed This is true. As with most things in life, you have to make compromises, and in this case, you're trading strong password... | [
"url"
] | [
"url"
] |
i6hl12 | Why do older people find it so much more harder to understand tech? | Technology | explainlikeimfive | {
"a_id": [
"g0vu70n",
"g0vuco5",
"g0vucar",
"g0vr2po",
"g0vs38r"
],
"text": [
"Well for one thing, like most things, there are exceptions to every rule. I'm 60 years old but I'm the one who EVERYONE I know comes to to fix their computers. This includes my two children who grew up with com... | [
"url"
] | [
"url"
] | |
i6ib9g | how do breathalysers work to detect alcohol in breath and how accurate are they? | Technology | explainlikeimfive | {
"a_id": [
"g0vvyou",
"g0vw4fo"
],
"text": [
"Alcohol is not digested by your body and directly enters your blood stream. Our blood also passes through our lungs where some of the alcohol passes through membranes and evaporates in the lungs because of its volatile nature. Now when you blow into a bre... | [
"url"
] | [
"url"
] | |
i6ieqv | why can music CDs only hold 80 minutes of content while gaming CDs can hold many hours? | Technology | explainlikeimfive | {
"a_id": [
"g0vx3lj",
"g0wnyja"
],
"text": [
"Audio CDs are uncompressed and typically require about 10MB/min. The quality of the audio is fixed, so spoken words and even perfect silence take up just as much space on an audio CD as dynamic music or random noise. Games, on the other hand, can store th... | [
"url"
] | [
"url"
] | |
i6m3mi | How do video games keep a constant frame rate? | As I understand video game code, it's based on a central loop (one repetition of which is a frame) that takes input, updates the gamestate, and renders the changes. Based on this understanding, a faster computer would run the loop faster, and the game would simply run at a faster speed. Obviously, this doesn't happen, ... | Technology | explainlikeimfive | {
"a_id": [
"g0wkp62",
"g0wl44j",
"g0wlfqo",
"g0wm0qh"
],
"text": [
"> a faster computer would run the loop faster Exactly! That's why people buy better hardware to get better framerates. The game does have access to the system clock so it's not like in the 80s where games had no idea how long... | [
"url"
] | [
"url"
] |
i6njt6 | Why does it take a while to charge things like phones or controllers and isn't instant? | Technology | explainlikeimfive | {
"a_id": [
"g0wtucr",
"g0wtzex"
],
"text": [
"It's like filling a car tank with fuel. Imagine if you pumped the fuel fast enough that it was instant! Super convenient and fast, except the part where the fuel pump explodes, the pipe bursts in your hand from the pressure (taking your limbs off in a sho... | [
"url"
] | [
"url"
] | |
i6q6oo | How did Duck Hunt work back in the day, with a Gun pointing to the screen? | Technology | explainlikeimfive | {
"a_id": [
"g0xb2vd",
"g0xa1k0",
"g0xjgc0",
"g0zazit"
],
"text": [
"The Zapper is basically a simple light detector with a lens at the end of the barrel. Basically, think of it like a really really low megapixel camera. When you press the trigger on the Zapper, the whole screen except for the... | [
"url"
] | [
"url"
] | |
i6u97h | So can someone explain what is viewing angle?How come an oled panel has such a wide viewing angle compared to it's lcd counterpart? Why does pixel lose color at a certain angle? | Technology | explainlikeimfive | {
"a_id": [
"g0y0jau"
],
"text": [
"It happens because of how the technology works. In an LCD the lights are always on and there’s an electrically controlled filter in front (the liquid crystal) that blocks or let’s the light through. The filter transmits the most light straight ahead and the light drops ... | [
"url"
] | [
"url"
] | |
i6wioj | - How am I able to talk to someone across the world with minimal lag | Technology | explainlikeimfive | {
"a_id": [
"g0yglxi",
"g0ygjnm"
],
"text": [
"The circumference of the earth is about 40 000 kilometers. Light travels at just under 300 000 kilometers per second, meaning light can circle the earth in less than 140 milliseconds. Modern voice communication is converted to light pulses and sent along ... | [
"url"
] | [
"url"
] | |
i6wj4i | How does the ZFS raid allow for just a small number of drives to be used for copies of data and guarantee that data won't be lost in case of failure? | What I mean is that according to linus tech tips, if you have five hard drives, you can dedicate one of them and it can guarantee that if any one drive fails, no data is lost. I just don't understand how that works. How come you don't need the same amount of backup storage as normal storage to guarantee that? How can i... | Technology | explainlikeimfive | {
"a_id": [
"g0yg2xu"
],
"text": [
"For a RAID setup with 5 hard drives and single parity, each block of data you store in the RAID array is divided into 4 parts. From these 4 parts, a 5th part called the parity information is calculated (see URL_0 for a non-ELI5 explanation of this step). If you lose any... | [
"url"
] | [
"url"
] |
i6xr1u | How do lights that turn on and off when you clap work? | Technology | explainlikeimfive | {
"a_id": [
"g0yy9ax"
],
"text": [
"Typically these devices have a microphone, a filter circuit and a switch. The microphone takes in any and all noises from the surrounding environment and converts it to an electrical signal. It does not discriminate. The filter circuit is where the magic happens. It tak... | [
"url"
] | [
"url"
] | |
i7052f | What kind of tasks are humans going to be still doing manually and cannot depend on automation or technology to do them? And why? | Technology | explainlikeimfive | {
"a_id": [
"g0z1gj6",
"g0z1d62",
"g0z2o5y",
"g0z3sh7"
],
"text": [
"From a robot technician: Current robotics are just starting to merge the fields of AI with real-world applications. See \"Spot\" for an example of this. However, the vast majority of robotics nowadays are in factories, and th... | [
"url"
] | [
"url"
] | |
i74lbg | Why are backup cameras so common on most cars, but you never see them on the 50foot semis | Technology | explainlikeimfive | {
"a_id": [
"g0zpcx2",
"g0zqs3y"
],
"text": [
"Trucking companies are insanely cheap and never do anything to make driving easier or safer until it's mandated by law. Even then, they try to find loopholes or just ignore the law until they're repeatedly punished.",
"It's honestly not needed. Most d... | [
"url"
] | [
"url"
] | |
i74lzn | How does the steering wheel of a car automatically return to it's original position when accelerating after a turn? | Technology | explainlikeimfive | {
"a_id": [
"g0zpyrm",
"g0zyjve",
"g10h5jo"
],
"text": [
"Both front wheels are angled inward or they have slight \"toe in\" which makes them want to go straight.",
"The short answer is that steering engineers have engineered the steering and suspension system so that the wheels and tires poin... | [
"url"
] | [
"url"
] | |
i762r6 | How can information be transmitted so accurately with little to no errors even at several MB/s? | If I'm not wrong, information is transmitted in 0s and 1s which is binary. 0s replaced by 1s or vice versa is all it takes to corrupt a file. How is this not prevalent even at high speeds? Even slight disturbance or delay could destroy such fragile signals. | Technology | explainlikeimfive | {
"a_id": [
"g0zxwjy",
"g100c9u",
"g0zxy3o",
"g105dbo",
"g0zys7j"
],
"text": [
"The most common protocol used for communication is TCP/IP which includes mechanisms to confirm all the data is received accurately. Data transferred over the internet is broken into smaller chunks called packet... | [
"url"
] | [
"url"
] |
i7dg4q | I keep reading the word "Discord" and "Discord Servers". Am I missing out on something? | Technology | explainlikeimfive | {
"a_id": [
"g117c9s",
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"g117f7h",
"g117fix"
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"text": [
"Discord is a (primarily) relatively new service aimed at gamers to help them coordinate and communicate while gaming. It was made a replacement for Skype and other voice call services. It combines a forum style text system wi... | [
"url"
] | [
"url"
] | |
i7e8eg | how an EMP doesn't harm humans, considering the brain is constantly using electricity? | I ain't no rocket surgeon, but I know that brain cells use electricity to communicate. What separates the affect of an EMP on an electronic device from the human brain? Can it affect humans, but in a less noticable way? | Technology | explainlikeimfive | {
"a_id": [
"g11duih",
"g11dr3a",
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"text": [
"EMPs are just really (really really really) powerful electromagnetic waves. Anything conductive will pick up those waves, similar to how a radio antenna picks up radio waves. The amount of power you pick up from the EMP depends on the size,... | [
"url"
] | [
"url"
] |
i7fofu | What's the difference between Emulator and Simulator? | I've read many blogs, but couldn't understand the striking difference between these two. From the perspective of Android or iOS. If a software claims to be an iOS emulator, how is it different from an iOS simulator? ***Edit:*** *Added more details. :)* | Technology | explainlikeimfive | {
"a_id": [
"g11v9u5",
"g11nkev",
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"text": [
"An emulator is capable of running content designed for the platform. An android emulator like bluestacks can run android apps, connect to the app store, etc. It is essentially an android operating system running on your pc hardware. A simul... | [
"url"
] | [
"url"
] |
i7gz58 | Why are "bot verify checks" becoming so hard? If bots became too smart would somrthing else be implemented? | Technology | explainlikeimfive | {
"a_id": [
"g11veg7",
"g12mqcb"
],
"text": [
"If captcha programs have not been upgraded, it's basically just a matter of time. A computer would likely recognize and select which image has the designated object much quicker than a human. Just give a few seconds and make your best guesses. Although I ... | [
"url"
] | [
"url"
] | |
i7iswp | what process goes into capturing photos of stars, planets, galaxies etc.? | Technology | explainlikeimfive | {
"a_id": [
"g127p4r"
],
"text": [
"Step one: build telescope Step two: teach telescope to find and follow objects (sort of a pain) Step three: take some calibration images—I usually do this once a night, one all white one, one all black one, and one just of the electronic noise Step four: take all images... | [
"url"
] | [
"url"
] | |
i7krkf | How do deep space telescopes work? | Technology | explainlikeimfive | {
"a_id": [
"g12ncrt"
],
"text": [
"I assume by \"deep space telescope\" you mean a wide and stout telescope like [this]( URL_2 ) or even the Hubble telescope. These telescopes are called reflecting telescopes, and they work differently than the long, thin refracting telescopes (which look like [this]( UR... | [
"url"
] | [
"url"
] | |
i7lk6a | Why do photos of the same size have different file sizes? | Technology | explainlikeimfive | {
"a_id": [
"g12mysa",
"g12pv38"
],
"text": [
"The complexity of the photo drives the file size. Take for example, 10 white pixels are next to eachother. Instead of storing \"white\" 10 times, it stores \"white x10\" once, which requires less space to store This is a rudimentary example of how file co... | [
"url"
] | [
"url"
] | |
i7m9qh | How do aimbots in first person shooter video games work? | Technology | explainlikeimfive | {
"a_id": [
"g12tnt1"
],
"text": [
"The most rudimentary bots take a screenshot, process the pixels and look for a cluster which looks very much like what the bot has been told 'an enemy head' should looks like. They aren't accurate, but they are almost impossible to detect by anti-cheat software. The bot... | [
"url"
] | [
"url"
] | |
i7mo6f | Why is it when you talk about a product, activity, place, action, etc; you get ads about that across social media? | Technology | explainlikeimfive | {
"a_id": [
"g12udxt"
],
"text": [
"There are two possible explanations: 1) When a service is free to use, you're the product - meaning that Google, Facebook, Twitter etc. makes their money primarily by selling data about your plans, habits, interests and needs to ad-companies, or using it to improve thei... | [
"url"
] | [
"url"
] | |
i7nxj9 | How can one tell if an online information source is accurate? | Technology | explainlikeimfive | {
"a_id": [
"g130co4"
],
"text": [
"It depends on the type of information you're looking for. URL_0 offers everything science related. If you're looking for world news your best bet is looking at several news outlets to even out their own bias (and preferably stay away from newsfeeds that will try to give... | [
"url"
] | [
"url"
] | |
i7wj9c | How does a CPU and Motherboard clock and bus speed work together? | I am getting an A+ cert and my tutorial just mentioned that my CPU speed is 3.9 GHz, but my motherboard is 200MHz. I understand how the motherboard mulitiplies speed. Mine usually does it by 33 times, but still, that isnt even CLOSE to 3.9GHz speed. How does my output on my computer not lag all the time? | Technology | explainlikeimfive | {
"a_id": [
"g14iwev"
],
"text": [
"200MHz is still really really fast so you're not going to see lag just because the motherboard speed is different and slower than your CPU. Think of it like speed limits on the road; the CPU is the interstate and goes very quickly between specific points, the motherboar... | [
"url"
] | [
"url"
] |
i7y2ju | Why do most countries have a different kind of electrical plug? Does/can a universal plug exist? | Technology | explainlikeimfive | {
"a_id": [
"g14rpot",
"g14t0ck"
],
"text": [
"Electricity propagated before international travel was common for most people and international manufacturing was nascent. Each country developed their own standards because there was no incentive to do otherwise - the US manufactured its own electrical a... | [
"url"
] | [
"url"
] | |
i81v3p | What is that sound or feeling you get before the power goes out during a storm? | There is this Erie feeling and a sound almost high pitched right before the power goes out. What is it or is it all coming from the brain? | Technology | explainlikeimfive | {
"a_id": [
"g15kwbw"
],
"text": [
"Since you said during a storm, here are the most likely explanations. The high pitch sound, almost like a tearing sound, right before lightning is from the \"failed leader\". This is a streamer of positive charge that goes up from the ground towards the negatively charg... | [
"url"
] | [
"url"
] |
i86i8a | How does a country just turn off the internet? | In recent events, Belarus was reported to have shut down the country’s Internet. How does that happen? Does the government control all the servers, or so they have a kill switch somewhere for all the service providers? What about mobile internet? Logistically, it doesn’t make sense. | Technology | explainlikeimfive | {
"a_id": [
"g16gi77",
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],
"text": [
"> Does the government control all the servers In a sense, yes. They send the police (or military) to the server companies and say shut the servers off or face arrest (or worse). They do the same with mobile providers.",
"... | [
"url"
] | [
"url"
] |
i89j4l | Why is 'colour' spelled as "color'' on computers? | Technology | explainlikeimfive | {
"a_id": [
"g16z2l5",
"g173bqu"
],
"text": [
"The short answer is because Color is the Americanized spelling of colour, and a lot of computers and computer programs are owned or operated by American companies",
"Because you have your computer using US English. Set it to UK English and it should b... | [
"url"
] | [
"url"
] | |
i8d0hl | Can anyone tell me what is github and how do people normally use it or understand? | I've recently come across the name 'github' and i know that it is a server in Scandinavia somewhere which people can apparently use it somehow idk. Would help if you someone could lay down everything regarding it... | Technology | explainlikeimfive | {
"a_id": [
"g17iujc",
"g17ize6",
"g17j5ww",
"g17kown",
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],
"text": [
"GitHub is a cloud storage site for Git repositories. Git is a version control system for software development, allowing developers to roll back their code to previous versions, branch off and develop new code w... | [
"url"
] | [
"url"
] |
i8g352 | Vacuum tubes. How and why? Transistors: Same question, but how are they better than vacuum tubes? | Technology | explainlikeimfive | {
"a_id": [
"g184814",
"g1858ln",
"g18fwr6"
],
"text": [
"People were using electric circuits to make devices. To turn a circuit on and off you need a switch. But a switch that you push with your finger or engage with an electromagnet can be slow and easy to break. So they invented the tube. It wo... | [
"url"
] | [
"url"
] | |
i8giwo | why do some boats have 4 engines with 300 HP. Does the horse power stack? | Technology | explainlikeimfive | {
"a_id": [
"g186q6l",
"g186nqk"
],
"text": [
"This phenomenon usually happens with outboard motors, where the entire motor pivots and turns. A single 1200 HP outboard motor would be impractically enormous. 4 x 300 HP gives you the same total power but in a much more convenient package. Because you ca... | [
"url"
] | [
"url"
] | |
i8m444 | Why all camera lenses are circular but photos and videos are square | Technology | explainlikeimfive | {
"a_id": [
"g198tpl",
"g199ct2"
],
"text": [
"The film strip (in a film camera) or the sensor (in a digital camera) is rectangular. Fancier cameras actually show you inside the lens what parts of the photo will be captured and what parts won't be.",
"Manufacturing lenses is done in a circular man... | [
"url"
] | [
"url"
] | |
i8o23s | How did we get computers to understand anything in the beginning since it's just electrified rock? | Technology | explainlikeimfive | {
"a_id": [
"g19mq9l",
"g19n9co"
],
"text": [
"Just for clarity, the computer doesn't understand anything and it doesn't think. It's just a bunch of switches (on = 1, off = 0, usually). We figured out how to connect switches in clever ways to implement simple logic functions like AND, OR, and NOT. You... | [
"url"
] | [
"url"
] | |
i8q93m | How does hacking work? | I dont have any plans of hacking or anything like that. But I am genuinely curious to know how the hell you can manage to break into cyber security and steal all sorts of information and cause damage. How does that even work? How can such a feat even be possible? | Technology | explainlikeimfive | {
"a_id": [
"g1a1zyy",
"g1a1yfw",
"g1a1pem"
],
"text": [
"Hey, CS major here. Computers have a lot of quirks in their construction at a hardware level and at a super low level of code(think binary or assembly code). These quirks can be exploited and abused to gain control of a computer or some oth... | [
"url"
] | [
"url"
] |
i8qgik | Why is wireless power so difficult to implement? | Technology | explainlikeimfive | {
"a_id": [
"g1a5wq4"
],
"text": [
"Wireless power is actually incredibly easy to implement. Tesla did it for kicks. What's hard is doing it efficiently. You're sending power in all directions, usually. That's a lot of power going nowhere in particular. If you want to, you can instead direct power into a ... | [
"url"
] | [
"url"
] | |
i8r50q | How do video game engines work and how do they differ from each other (Unity, unreal, etc)? | Technology | explainlikeimfive | {
"a_id": [
"g1a8f0s"
],
"text": [
"They're basically a framework that has all the super basic shit like lighting, shadows, movements, some ai behaviours and physics and all that prebuilt so it doesn't need to be coded every single time. You just make the engine once and then every time after that simply ... | [
"url"
] | [
"url"
] | |
i8t8cp | What IS Electricity? | I think it’s the flow of electrons, but how does a couple of tiny bois flowing run an appliance like a blender or a computer | Technology | explainlikeimfive | {
"a_id": [
"g1anem8",
"g1apcdg",
"g1athna"
],
"text": [
"1) More than a couple. Copper has 85,000,000,000,000,000,000,000,000,000 free electrons per cubic meter. 2) The electromagnetic force is very strong. 37 orders of magnitude stronger than gravity.",
"Technically it is the flow of charge.... | [
"url"
] | [
"url"
] |
i8tz51 | How does a GPU differ from a CPU? | Technology | explainlikeimfive | {
"a_id": [
"g1arrnf",
"g1arvic",
"g1athcf",
"g1as140"
],
"text": [
"specializaton. Chips have hardware in them that perform various tasks. CPUs have to be very general because they need to be able to do everything. With a GPU, you know what tasks you're going to do frequently and you can desi... | [
"url"
] | [
"url"
] | |
i8yncu | How does doxxing work? Besides the obvious, personal information, what should I avoid sharing online? | Technology | explainlikeimfive | {
"a_id": [
"g1bt0uk",
"g1bmu74",
"g1bjuev"
],
"text": [
"Your name is Abdullah, you are 29 years old and live with your parents. You're from Pakistan and are a semi-devout Muslim. I found this from a brief scan of your Reddit history. I also found a link in one of your posts that, in the metadata... | [
"url"
] | [
"url"
] | |
i8ypx1 | Why are video games more GPU-intensive than movies? | You can watch movies at highest quality without needing a dedicated GPU, but video games almost always require a GPU. What is it about gaming that makes it so resource-intensive as compared to videos? You can explain this with technical lingo if you want. I do understand the basics of computers and gaming so even an in... | Technology | explainlikeimfive | {
"a_id": [
"g1biw39",
"g1bjt46",
"g1bjf3i",
"g1bizw0",
"g1bixx5",
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"text": [
"Because the video is just a row of still pictures, where the videogame is actually a 3D simulation from wich your GPU calculates a 2D picture every frame. Depending on how \"AAA title\" that vide... | [
"url"
] | [
"url"
] |
i8yw7k | How do fingerprint sensors on our phones work? | Technology | explainlikeimfive | {
"a_id": [
"g1boqls"
],
"text": [
"I assume you want an answer from someone who actually knows their stuff, but since no one is replying I decided to do a quick google search and copy & pasted this from [ URL_0 ](https:// URL_0 ). & #x200B; > The way an optical **scanner works** is by shining a bright li... | [
"url"
] | [
"url"
] | |
i8zlpw | Why does film footage shot in the 50s still look great now? | I was watching the trailer for this film, where the footage was shot in 1953 [ URL_1 ]( URL_0 ) How come it looks so good even now? | Technology | explainlikeimfive | {
"a_id": [
"g1bog9p",
"g1bq17d"
],
"text": [
"Film is a super good way to image movement. Professionally made movies of the 1950s have higher resolution than 4K video, because they used a better sensor. The cost of all that film was super high, so that's why we don't do things that way anymore. We've... | [
"url"
] | [
"url"
] |
i90ikl | Software Defined Networking (SDN) | What is SDN? How does it differ from the 'regular' internet that we use? | Technology | explainlikeimfive | {
"a_id": [
"g1bw0j4"
],
"text": [
"You know virtual machines? SDN is like virtual machines, but instead of running Linux/Windows, you run router and switch operating systems that connect to each other inside the host computer's memory and to outside networks/computers via the host compuetr's (numerous) p... | [
"url"
] | [
"url"
] |
i90l0s | With how far we’ve come with technology, why are computers still made with x64 architecture rather than going to something higher? What’s keeping it at that point? | Technology | explainlikeimfive | {
"a_id": [
"g1bxgmx",
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"text": [
"There's not really a point. The reason we went from 32 to 64 bit processors was because we started hitting the limit of RAM at 4GB. This is because processors had to say where in memory they want... | [
"url"
] | [
"url"
] | |
i91gpy | What is the "silicon lottery"? What makes 2 of the same model of CPUs better/less suited for overclocking? | I'd like to know what makes them behave differently even though they are the same model. | Technology | explainlikeimfive | {
"a_id": [
"g1c3sud",
"g1c1vlu"
],
"text": [
"The silicon chips is manufactured at extremely high precision, on the very limit of what we are able to produce and indeed what is physically possible to produce given the size of the atoms. So sometimes the exact distances between semiconducting elements... | [
"url"
] | [
"url"
] |
i93gy9 | On MMORPGs, how can a server laglessly handle thousands of players across the entire game world, but experiences problems when lots of players are in one place? | Evening. Not sure if this is the right place to post this question, but I thought I would give it a try since the internet and networking seems super complex and I'm not a big brain. I play WoW and Final Fantasy XIV. Recently I've been in areas where hundreds if not thousands of players are in the same area in the game... | Technology | explainlikeimfive | {
"a_id": [
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"g1d3ee9",
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"g1ep70e",
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],
"text": [
"Hi! 20 year MMO server-side engineering veteran here, so I'm delighted by this question. T... | [
"url"
] | [
"url"
] |
i98i5v | Why is it so hard to make flawless collision detection in video games? | Technology | explainlikeimfive | {
"a_id": [
"g1dfjl3",
"g1denao",
"g1dhuom",
"g1dglpp"
],
"text": [
"Video games need to run the simulation very very fast. Typically they only have a few **milliseconds** to compute the physics for everything that's moving. To do this at all, they need to use coarse approximations, which some... | [
"url"
] | [
"url"
] | |
i98r72 | Why does a radio work better when you put your hand on it's antenna? | Technology | explainlikeimfive | {
"a_id": [
"g1djjy8",
"g1djjnk"
],
"text": [
"you become part of the antenna. And can pick up more of the signal due to more surface area.",
"Because you also act like an antenna and the bigger the antenna the better the signal received."
],
"score": [
6,
4
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"text_urls": [
[... | [
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i98ycf | How is it possible that a cell phone tower can send out thousands or tens of thousands of messages and data simultaneously and everyone's phone knows exactly what data is meant for it , and how does it know exactly where you are to send the data to the right spot? | Technology | explainlikeimfive | {
"a_id": [
"g1dija1"
],
"text": [
"Every piece of data is wrapped in the digital equivalent of an envelope with the \"address\" of your phone on the envelope. Your phone watches for packets addressed to it and ignores all others. The cell tower has to keep track of everyone all at once but that's why it ... | [
"url"
] | [
"url"
] | |
i9ar35 | Why do phone scammers often use phone numbers almost identical to our own? Aren't they intentionally making themselves look more suspicious? | Technology | explainlikeimfive | {
"a_id": [
"g1dvr5g",
"g1dwpyl",
"g1du9lo",
"g1e6yqf"
],
"text": [
"This is intentional. Scammers in general don't want to waste their own time and resources on people who won't fall for the scam. Making scams look like scams is actually an efficient strategy.",
"Phone scammers aren't tar... | [
"url"
] | [
"url"
] | |
i9g9y3 | What is “phone radiation,” and how is it different from EM radio waves? And how could it be harmful to humans? | I know some very intelligent people who believe phones, 5G, and WiFi are seriously dangerous I just can’t seem to understand why... | Technology | explainlikeimfive | {
"a_id": [
"g1ex3bo",
"g1exvrj",
"g1fw21a",
"g1ewq70"
],
"text": [
"Phone radiation is basically a certain part of the EM waves, as are WiFi etc. There are people who believe it's harmful, because they think the EM-fields phones and anything electric and electronic creates (by just having an ... | [
"url"
] | [
"url"
] |
i9gsr1 | how do computers actually store information? | Technology | explainlikeimfive | {
"a_id": [
"g1f347h"
],
"text": [
"It depends on the technology were talking about. WW2 computers stored information either by how they were hardwired or on paper. Your current computer on the other hand stores the information in the hard drive that is basically a disc that have tons and tons of tiny mag... | [
"url"
] | [
"url"
] | |
i9j1oj | What is the internet cloud and what is the difference amongst SaaS, PaaS and FaaS? | Technology | explainlikeimfive | {
"a_id": [
"g1fea4h",
"g1fe42m"
],
"text": [
"Cloud simply means you use someone else's hardware. Instead of storing files on your local computer you store it in a large server and can download it everywhere you have an internet access. SaaS, PaaS, Faas and also IaaS are simply different ways how to ... | [
"url"
] | [
"url"
] | |
i9jyjc | How does a RAM array know where to load data from? (Adress in RAM array) | Hey there, currently I am reading `Code: The Hidden Language of Computer Hardware and Software` from Charles Petzold. I am more than half through but I am a bit lost here. [ URL_0 ]( URL_0 ) "As usual, the instructions begin at 0000h because that's where the counter starts accessing the RAM array after it has been rese... | Technology | explainlikeimfive | {
"a_id": [
"g1fhwxn"
],
"text": [
"Every operation is made of 1 or more bytes. In your case first byte (10h) is code for Load, and next 2 bytes are address you are looking for (00h as high byte, and 10h as low byte). PS. In your example memory is arranged in big-endian order (most significant byte is on ... | [
"url"
] | [
"url"
] |
i9jyl9 | How do touchscreens work? | Technology | explainlikeimfive | {
"a_id": [
"g1fhn04"
],
"text": [
"There are different concepts. The most common one is the capacitive measurement. The screen is slightly charged with an alternating electric field, and your finger changes how that field behaves."
],
"score": [
3
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[]
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i9kh1q | How do radios work? What are radio waves and radio signals? What are radio frequencies? And how do antennas work? | Sorry for the large amount of questions about radios, im just really interested | Technology | explainlikeimfive | {
"a_id": [
"g1fo3dz",
"g1folvl"
],
"text": [
"Radio waves are a subset of electromagnetic waves, a form of energy. Since your other question implies that you are an 11-grader, you should at least know about the electric and magnetic fields (if you don't, we'll explain). They are actually two \"sides\... | [
"url"
] | [
"url"
] |
i9l4n6 | How does CPU cache affect the performance/processing speed of a Laptop? | Also, what is a cache/cache memory? | Technology | explainlikeimfive | {
"a_id": [
"g1fppc1"
],
"text": [
"In general, the bigger the memory, the slower it gets. In pure theory, your computer could work by only using your hard drive. But it would take literal days to do any basic thing because the hard drives (also SSDs!) are SO slow. So there’s RAM. A lot smaller, but much ... | [
"url"
] | [
"url"
] |
i9pxf2 | So, where do emails/texts/messages etc. go when they get lost in the interwebs on their way to the recipient? | Example: Sometimes, an email says it was sent. But the recipient has never received it. Same with a text or voicemail. Im just confused as to what happens! | Technology | explainlikeimfive | {
"a_id": [
"g1gmcpb",
"g1gnk5j"
],
"text": [
"Either to the wrong recipient or nowhere. All digital communication is a one way transmission, even video calls. It's just very quick one way communication from two sources. If the data you're trying to send doesn't reach it's intended destination, it doe... | [
"url"
] | [
"url"
] |
i9q3gw | Why do gifs take longer to load than videos? | Technology | explainlikeimfive | {
"a_id": [
"g1gp13a",
"g1goecq",
"g1gopxv"
],
"text": [
"Gifs have to load the whole file onto your computer before playing. Videos on streaming services are encoded in a way so that they load in order from start to finish. This process used to be called \"buffering\"; you would wait a few second... | [
"url"
] | [
"url"
] | |
i9qfmm | how did/does a radio station know how many listeners they have that day? I'm really curious to this question posed in the 80s or 90s when tech was far less than now. | Technology | explainlikeimfive | {
"a_id": [
"g1gpw0v"
],
"text": [
"Surveys. Radio stations hire (usually) independent survey companies to run surveys in their area to get a rough estimate of what percentage of people are tuning in. This could take the for of in person asking if questions, phone calls going to houses, mail, or even onli... | [
"url"
] | [
"url"
] | |
i9ui48 | How does an SSD hard drive make a computer/console run faster? | I’ve heard that swapping the normal hard drive that comes with something like a PS4 with an SSD hard drive would make it faster, how does it do this? | Technology | explainlikeimfive | {
"a_id": [
"g1hj5dc"
],
"text": [
"An HDD has to physically move an arm with a magnet on it to read the data stored on a literal disc covered in tiny magnets. To read data somewhere else, the arm has to move again. Once the arm is in place, the disc turns so data can be accessed. when you read what you w... | [
"url"
] | [
"url"
] |
i9v40h | How do external hard drives work? | I suppose I’m actually asking a fairly specific question. I have an external hard drive that I’ve had for 6 years. The first time I backed up my hard drive was in 2014 and periodically throughout the years. I just went through a pretty big purge of pictures and documents I don’t want or need to keep anymore. I just bac... | Technology | explainlikeimfive | {
"a_id": [
"g1hvkde"
],
"text": [
"depends on what software you are using to take the backups. there are various schemes it could be employing like generational backups. [this page]( URL_0 ) summarizes the 3 main strategies."
],
"score": [
3
],
"text_urls": [
[
"https://phoenixnap.c... | [
"url"
] | [
"url"
] |
i9vft7 | Why do floating point operations often yield results that are very slightly off? | Technology | explainlikeimfive | {
"a_id": [
"g1hr88n",
"g1hpt64"
],
"text": [
"Computers store numbers in binary (base 2). They only have two digits, 0 and 1. So when we convert 0.1 into binary we get: 0.000110011001100110011001100110011001100110011001100110011001… (Note the 1001 repeats forever) We store binary numbers in floats or... | [
"url"
] | [
"url"
] | |
i9vp92 | What is the purpose of motion blur in video games? | Technology | explainlikeimfive | {
"a_id": [
"g1j5opl",
"g1hzszk",
"g1hu39v",
"g1i0wi8"
],
"text": [
"Motion blur is added to games to give you an incentive to check out the settings menu as you immediately search for a way to turn off the motion blur when you see that a game has it.",
"First, our eyes don't \"update at 2... | [
"url"
] | [
"url"
] | |
i9wb9h | why do some digital cameras struggle to 'pick up' on artificial light while others are great, and what kind of details can I look out for when shopping to predict its performance in low / artificial light conditions? | Technology | explainlikeimfive | {
"a_id": [
"g1ib1dk"
],
"text": [
"Indoor lighting is thousands to millions of times weaker than outdoor lighting. *Any* camera is going to struggle with indoor or night shooting. Traditionally, increasing exposure on a camera will increase motion blur (shutter speed), depth of field blur (aperture/iris)... | [
"url"
] | [
"url"
] | |
i9wmwx | How does file compression work? | How can a file become smaller in size but still contain the same details like a picture or a game for example. | Technology | explainlikeimfive | {
"a_id": [
"g1hxfy7",
"g1hxt5p"
],
"text": [
"Typically algorithms are designed to find patterns and represent them in a smaller way. For example: AAAAAAAAAA 10A Both the above can represent 10 As. The first is 10 bytes and the second can be represented as just two bytes (if using int8)",
"The da... | [
"url"
] | [
"url"
] |
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