q_id stringlengths 6 6 | title stringlengths 4 294 | selftext stringlengths 0 2.48k | category stringclasses 1
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6afaoi | How do people with different alphabets program? | Technology | explainlikeimfive | {
"a_id": [
"dhe2n88"
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"text": [
"They learn and program in English. While there are a few non-English programming languages, most of the tech world works in English. You don't actually have to know a lot of English to program, since the basics of the programming language is just a few dozen keywords. H... | [
"url"
] | [
"url"
] | |
6agtgc | How does Wifi connect us to the internet? | Technology | explainlikeimfive | {
"a_id": [
"dhegxmb"
],
"text": [
"WiFi connects you to your router, which is what connects you to the rest of the Internet. Your WiFi connection is basically just a replacement for a cable. Or did you mean how does WiFi itself work?"
],
"score": [
4
],
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[]
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} | [
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6agu7o | Why isn't there a display technology that uses the actual full color spectrum, instead of RGB lights? | Technology | explainlikeimfive | {
"a_id": [
"dheg071",
"dheggb7"
],
"text": [
"There are receptors in your eyes called cones that process color. Theee are three kinds of cones that process three different wavelengths of light: red, green, and blue. Every color you have ever seen in your entire life has been a combination of those th... | [
"url"
] | [
"url"
] | |
6agwu2 | Why is "PC Gamer" Hardware so Flashy? | Technology | explainlikeimfive | {
"a_id": [
"dheh1vz"
],
"text": [
"It's the same thing as people who love cars. You love it, so you give it the best parts and make it look cool. Personally, I went with a tower from Nanoxia that has no window. It's just this beautiful, sleek, solid black monolith purring next to me."
],
"score": [
... | [
"url"
] | [
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6aiiii | Why is it that downloading through Steam slows my internet, but watching YouTube doesn't? | Technology | explainlikeimfive | {
"a_id": [
"dhetl45"
],
"text": [
"When you watch a video it only needs to send the video as fast as it needs to in order to play it back. When you download a large file from Steam it attempts to get you the file as quickly as possible."
],
"score": [
6
],
"text_urls": [
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} | [
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6ajfcq | How do lithium ion batteries work? | Technology | explainlikeimfive | {
"a_id": [
"dhf0h2w"
],
"text": [
"A lithium ion battery uses charged lithium particles (ions) to move electricity from one end of the battery to another. As energy leaves the battery, these lithium ions move from the negative side of the battery to the positive side, forming a conductive lithium layer t... | [
"url"
] | [
"url"
] | |
6aknm4 | What's changed, if anything, since the Vault 7 leak? | Technology | explainlikeimfive | {
"a_id": [
"dhfm352",
"dhfjcwb"
],
"text": [
"The leaks were massively overhyped. Most of the exploits were old and already publicly-known. Most of the new ones were pretty minor. Clickbait articles proclaimed the leaks as \"the entire CIA toolkit!\" but really it seems to have just been a few low-va... | [
"url"
] | [
"url"
] | |
6aks74 | Why cant the internet version of youtube "minimize" the current video into the corner while I browse for another one, like it does on the app? | Technology | explainlikeimfive | {
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"text": [
"People are suggesting tons of alternatives to your problem, but not actually answering the... | [
"url"
] | [
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6al4h9 | What is preventing youtube from utilising adblock detector and disallowing users from watching videos until they disable the web extension? | I tried to watch a video on an on-demand video website and to my surprise it would not allow me to progress to my selected video until I disabled adblock. Of course I paused adblock instantly to view the video. Why do other websites not follow suit? | Technology | explainlikeimfive | {
"a_id": [
"dhfcfnf",
"dhfdzkw",
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"text": [
"Blocking the browser extension will encourage people like myself to block ads at the router level which takes my whole household of five people off their ad network",
"YouTube / Google absolutely does not want to touch the adblocker/adb... | [
"url"
] | [
"url"
] |
6al5v6 | how do electric vehicles harness braking energy to charge batteries? | Technology | explainlikeimfive | {
"a_id": [
"dhfd0hb",
"dhfcwzo"
],
"text": [
"Electric motors. work the same as generators - and essentially they are the same thing. Think \"direction of power flow\" They can take electrical energy and convert to mechanical energy (the RATE or how fast they can do this is their power) and visa-vers... | [
"url"
] | [
"url"
] | |
6alueo | why do gifs seem faster the second time you watch them? | Technology | explainlikeimfive | {
"a_id": [
"dhfioi9"
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"text": [
"In most cases, the first time you watch a gif, the data for the image is still being downloaded to your computer/phone. You may be watching frames of animation that are stuck on the screen while the next frame has not yet been downloaded; then, when it finishes download... | [
"url"
] | [
"url"
] | |
6ar50h | What's the difference between AWD and 4WD? | I just can't get the hang of it. | Technology | explainlikeimfive | {
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"dhgr6hb",
"dhguyua",
"dhgtgyp",
"dhh87g3",
"dhhlg3w",
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"text": [
"Manufacturers (or more accurately their marketing departments) sometimes use the terms interchangeably but in the most common usage, AWD is safe to use on dry pavement and 4wd is not. The reason ... | [
"url"
] | [
"url"
] |
6atf5w | How does special effects work in movies that were shot on film? | Technology | explainlikeimfive | {
"a_id": [
"dhhkd00"
],
"text": [
"The go-to was called [rotoscoping]( URL_0 ). Essentially, artists would draw what they wanted on top of every frame. Take for example starwars. The actors would hold heavy sticks, then post filming they'd add glow and a colored lightsaber on 24 frames for every second o... | [
"url"
] | [
"url"
] | |
6ats5d | Why can no two files have the same name while in the same folder on most computers? | Technology | explainlikeimfive | {
"a_id": [
"dhhcmi6",
"dhhdgsc"
],
"text": [
"Imagine there's 2 guys in a room named Steve. Outside of how they look, sound, etc. how could you tell which Steve was which if all you had to go off of was their name? If you called out \"Steve\", both would answer and there'd be confusion. How do comput... | [
"url"
] | [
"url"
] | |
6atsli | How the hell can an almost 20 year old game cartridge (Poke Gold) know the exact time of day? | Technology | explainlikeimfive | {
"a_id": [
"dhhd86a",
"dhhkx0b",
"dhhihbb",
"dhhn5sh"
],
"text": [
"The cartridge has a built-in battery. This battery keeps the part of the catridge that has save file going when it is not being provided power (in the gameboy). So, just like a normal clock, it just keeps on going. Thus, if t... | [
"url"
] | [
"url"
] | |
6atuh6 | The 7 layers of the OSI Model | I'm an older guy who just changed departments at work and I'm now interacting with many IT professionals. Although my job doesn't require it, I'm trying to be more conversant in what seems like a new language to me. Unfortunately, even basic definitions and explanations I find online appear to cater to people who alrea... | Technology | explainlikeimfive | {
"a_id": [
"dhhdb1z",
"dhhg7y5"
],
"text": [
"In reality, the entirety of the OSI model isn't useful in day to day interaction with IT people or even in the day to day work of a lot of IT people. It basically just defines different layers of communication from the physical cable that carries signal i... | [
"url"
] | [
"url"
] |
6avbxl | why are replays on sports so blurry? | We can capture a bullet in mid flight but when I watch baseball or football replays they are always blurry. Can't they use the same high frame rate that people doing high speed motion capture use? | Technology | explainlikeimfive | {
"a_id": [
"dhhqls4"
],
"text": [
"> Can't they use the same high frame rate that people doing high speed motion capture use? No. Those special cameras require special high intensity lights that would blind any athlete on the field. Also, they can only record like 1 second of footage, so you can't have t... | [
"url"
] | [
"url"
] |
6avx11 | Why do companies use download assistants instead of direct downloads? | I just reinstalled my computer and I noticed, that almost every download I had to make was through a company specific download assistant. My HP-drivers was downloaded through the HP Support Assistant. My Adobe programs was through the Adobe Creative Cloud assistant. Unity was through the Unity Download Assistant. My ga... | Technology | explainlikeimfive | {
"a_id": [
"dhhuxtk",
"dhhuuk5"
],
"text": [
"All of that software uses download managers for exactly the same reason that Steam does - so the software can be automatically updated. Drivers get frequent updates, Adobe products are frequently updated & Unity is also frequently updated.",
"It allow... | [
"url"
] | [
"url"
] |
6aw4sd | Why does charging a device take hours instead of the battery being restored instantly after being plugged in? [TECHNOLOGY] | Technology | explainlikeimfive | {
"a_id": [
"dhhwp0p"
],
"text": [
"Batteries don't operate by storing electrons. They operate by having chemicals in them that can undergo a reversible chemical reaction. A voltage is produced as the reaction proceeds, and applying an external voltage can reverse the reaction so that it can happen again.... | [
"url"
] | [
"url"
] | |
6axtqz | How does "Login via Facebook/Google/etc" work? How can it be secure to give away my credentials to random sites? | Technology | explainlikeimfive | {
"a_id": [
"dhiabgs",
"dhi872g",
"dhicsf8"
],
"text": [
"Your credentials are never sent or known to the random site, but your user info is. This is how it goes: 1. You want to login to random site XYZ and that means you want to prove your identity to XYZ (this process is called authentication) 2... | [
"url"
] | [
"url"
] | |
6ayao2 | 1x, 3G, 4G, 4G LTE; what do these designations mean and what do they do? | Technology | explainlikeimfive | {
"a_id": [
"dhibxhm",
"dhj2wfx"
],
"text": [
"They refer to mobile network transmission protocols. 1x will likely refer to all technologies prior to 3G - so GPRS, WAP, etc 3G is the 'Third Generation' of mobile network data transmission protocols. This covers HSPA, HSDPA, and HSDPA+ (High Speed Packe... | [
"url"
] | [
"url"
] | |
6ayrov | How do malware like WannaCry infect new computers even if someone on those computers does not click a link or visit a website? | Technology | explainlikeimfive | {
"a_id": [
"dhifush",
"dhii02f",
"dhioev8"
],
"text": [
"The WannaCry virus is known as a *worm*. A worm equipped with the right exploits is able to infect other computers on the same LAN. The lan spreading has been patched by Microsoft, **so I would suggest everyone to force update all your comp... | [
"url"
] | [
"url"
] | |
6az6m7 | Why does Facebook prefer videos of a gif instead if an actual gif? | Technology | explainlikeimfive | {
"a_id": [
"dhijuil",
"dhiuaol"
],
"text": [
"Same reason Reddit prefers them (like imgur's \"gifv\"). The files are a much smaller size for a similar quality, which means they load faster and you use less data to transfer them (a bonus for anyone with a metered data connection).",
"The technical... | [
"url"
] | [
"url"
] | |
6b0v8o | Cameras: You used to replace the bulbs after a few shots, so what changed? | Technology | explainlikeimfive | {
"a_id": [
"dhixr0x",
"dhixl3w"
],
"text": [
"Camera flashes were originally a magnesium explosion in a handheld tray, so single use and dangerous. These were replaced by flash bulbs, which are magnesium plus oxygen contained in a bulb that looks like a light bulb. Still an explosion (that doesn't br... | [
"url"
] | [
"url"
] | |
6b2l44 | How do audio editors manage to dub movies without losing the rest of the sounds(i.e. ambient noises, background music, gunshot noises) | I'd imagine that music isn't so hard to add back, but what about other sounds, are they simply replaced with pre-recorded ones, or is the process more complicated than that? | Technology | explainlikeimfive | {
"a_id": [
"dhjaku6",
"dhjbngi"
],
"text": [
"There are multiple soundtracks going on at the same time and each soundtrack can be adjusted individually. So they record the background noises, they record the voices and they record other things as well. When they replace the voices, they just switch ou... | [
"url"
] | [
"url"
] |
6b2q75 | How does whatsapp make money without ads and free services? | Technology | explainlikeimfive | {
"a_id": [
"dhjc2f4",
"dhjbp24"
],
"text": [
"It's owned by Facebook. They get more than enough money from there. It most likely also collects and sells your data.",
"Messaging apps are often monetized in other countries where SMS messaging is more expensive. The app started out with a $1 subscri... | [
"url"
] | [
"url"
] | |
6b2w9n | How did the iPod Shuffle charge from a 3.5mm headphone jack? | I never see any articles mentioning how they charge, everyone is just concerned for it to BE charged. I mean, it would be lit if I could charge my phone through a headphone jack... How does it work? | Technology | explainlikeimfive | {
"a_id": [
"dhjdgc2",
"dhjdaf8"
],
"text": [
"For charging a battery you just need two connections. The headphone jack always has at least two (sometimes more for microphones) It is not common to charge via headphone jacks but nothing restricts you to do so. Apple has built a charger to transfer the ... | [
"url"
] | [
"url"
] |
6b38da | How do night vision goggles work? | Technology | explainlikeimfive | {
"a_id": [
"dhjfnvd",
"dhjfduk"
],
"text": [
"There are several ways: * Infrared: There are electronics that can see \"color\" lower than red. As things and beings radiate those colors as heat, you can use it to see in the dark. Also, as infrared is invisible to the human eye those night vision devic... | [
"url"
] | [
"url"
] | |
6b3ja1 | If I become Invisible, how could I see? | Technology | explainlikeimfive | {
"a_id": [
"dhjh782",
"dhjgvs1",
"dhjhrq0",
"dhjhgr4"
],
"text": [
"As becoming invisible would entail magical means at this point, magic would also provide you with sight.",
"Fair point, you could use a camera and VR goggles. A small HD camera being visible won't be noticeable I guess...... | [
"url"
] | [
"url"
] | |
6b3ywg | Why performance of storage devices (hard disks) haven't increased significantly like other devices (e.g Ram, GPU). | Technology | explainlikeimfive | {
"a_id": [
"dhjlavr",
"dhjlhyo",
"dhjln5e",
"dhjlhcg"
],
"text": [
"CPU and RAM speeds are driven by the frequency of transmission of data. The high frequency make circuits behave like transmission lines where interference and other issues start to create so much noise data gets corrupted. Ne... | [
"url"
] | [
"url"
] | |
6b4or8 | Why, in old black and white movies, does the picture brighten slightly a second before a fade transition takes place? | Technology | explainlikeimfive | {
"a_id": [
"dhjqswy"
],
"text": [
"You'll notice the same effect on older color movies as well. Many \"transitions\" between shots were accomplished optically, requiring an additional generation or copy of the portion of film involved. The bit of film beginning just prior to and the bit of film ending ju... | [
"url"
] | [
"url"
] | |
6b7qcd | Why are cyber attacks hard to defend against? | Technology | explainlikeimfive | {
"a_id": [
"dhkonfe",
"dhkh7tp"
],
"text": [
"The defenders dilemma. You can spend millions on defending yourself but all you need is for one person to find one gap in your defences one time and everything is compromised.",
"Most people are very bad at patching their systems. Some companies have ... | [
"url"
] | [
"url"
] | |
6b95ca | multiple antivirus | Is there any benefit to having more than one piece of antivirus software running on a Windows machine? If I have two installed, in the case of realtime scanning, what decides which one scans first? Example: it was recently found that Windows Defender had a [security hole]( URL_0 ) that allowed remote execution through ... | Technology | explainlikeimfive | {
"a_id": [
"dhkrs3w"
],
"text": [
"It's a very bad idea. An antivirus flags the files in a computer as \"safe\". A second antivirus might identify that flag as something that doesn't belong to the file (rightfully, because that's what it is looking for) and then it can consider said file a virus. Or a se... | [
"url"
] | [
"url"
] |
6b9o51 | Why does raw RGB video need to be trans-coded into YCbCr | Trying to study digital video formats and really can't wrap my head around that one. | Technology | explainlikeimfive | {
"a_id": [
"dhkuskv"
],
"text": [
"Short answer: it doesn't need to be, but it really helps to keep final size down while keeping comparable amount of noticeable detail. Long answer: People really notice much more detail from contrast change than in color change (while keeping the same amount of light). ... | [
"url"
] | [
"url"
] |
6b9utj | Why is it that playing a PC game at 30 FPS looks so bad, yet playing a console game with a 30 FPS cap looks buttery smooth? | Technology | explainlikeimfive | {
"a_id": [
"dhkw09d"
],
"text": [
"There would be a lot of factors that could cause it to look less \"buttery smooth\": Typically console games will be optimised for 30fps on that platform. So when playing a game like GTA , there will be a standard graphics setting that will work the same for every conso... | [
"url"
] | [
"url"
] | |
6bahs1 | How do people hack into an intranet and why do we need anti-virus systems in an intranet? | Technology | explainlikeimfive | {
"a_id": [
"dhl098a"
],
"text": [
"There are a lot of ways someone might \"hack into an intranet\" but a simple way to understand why something might get through the barriers surrounding an intranet is to consider USB thumb drives. A virus on a thumb drive might easily be introduced within the network ev... | [
"url"
] | [
"url"
] | |
6bc43h | What is the process of supplying more cellular data to a customer on the provider's side? To companies like AT & T and Verizon have an unlimited supply of data to give? | Technology | explainlikeimfive | {
"a_id": [
"dhlek2z",
"dhlk6ol"
],
"text": [
"it's not a matter of there being a finite data limit. that's not what caps are enabled. they are enabled for 2 reasons. $ and performance. with a cap, you can convince customers to pay for higher tier of data for basically the same service. verizon isn't ... | [
"url"
] | [
"url"
] | |
6bcpti | why cant windows uninstall 2 things at once at control panel ? | all the answers i found are pretty complicated . i dont know anything about being a programmer . | Technology | explainlikeimfive | {
"a_id": [
"dhljvz3",
"dhlneao"
],
"text": [
"Programs add their configuration settings to the registry and the file system. Windows needs a way to track what those changes are. If you install or uninstall two programs simultaneously, Windows has no way to know which program made which changes in cas... | [
"url"
] | [
"url"
] |
6bcuig | Why does software have bugs? | I get that an OS like Windows has a lot of written code, but there are thousands of people working on it and I assume, that there are some basics that have been coded and reviewed several times. | Technology | explainlikeimfive | {
"a_id": [
"dhlk1z1",
"dhlk24n"
],
"text": [
"Because humans are not perfect. A bug is a condition where the executiin of code results in an error. While there are many ways to test code, the more complex it gets, the harder it is to find and prevent possible problems.",
"Writing perfect code is ... | [
"url"
] | [
"url"
] |
6bcum2 | The difference between AM and FM radio waves and why they sound different? | When I listen to AM radio, especially talk shows, whenever music plays in intermission in never sounds as clear as on FM stations. What's the difference? Why do both exist? Why do they sound different? | Technology | explainlikeimfive | {
"a_id": [
"dhlle55"
],
"text": [
"> What's the difference? AM stands for Amplitude Modulation, while FM stands for Frequency Modulation. As the name implies they are different ways of encoding audio data in radio waves. > Why do both exist? Because both work well enough for what they are used for and do... | [
"url"
] | [
"url"
] |
6bdezk | Why do E27 compact fluorescent lamps need time to warm up and reach full brightness, while old school T5 fluorescent tubes don't? | Technology | explainlikeimfive | {
"a_id": [
"dhltorq"
],
"text": [
"A fluorescent tube is kind of like a neon tube, except it uses mercury instead of neon. And the mercury vapor emits most of its light as UV, which is used to energize a fluorescent coating that re-emits white light. So when they're off, the tubes are cold and have mostl... | [
"url"
] | [
"url"
] | |
6bdj72 | What does a computer's CPU do while usage is at 0%? | Technology | explainlikeimfive | {
"a_id": [
"dhlr1bt",
"dhlr2lz"
],
"text": [
"In a modern computer CPU usage almost never drops to literally zero operations per second, but it can get close. When not working, the CPU will enter a power-saving state, where it either (A) executes the same \"wait for a signal or timer\" loop over and ... | [
"url"
] | [
"url"
] | |
6bds9u | Why are Wi-Fi/Cellular signal strength expressed in negative numbers ? | Why we write the signal strength of Wifi as -60 dBm ? Where does this negative value come from? Why I haven't seen any positive signal strength value? | Technology | explainlikeimfive | {
"a_id": [
"dhlsso5"
],
"text": [
"The reason is that the signal strength is expressed in deciBels, which is a convenient way to represent very large and very small values. DeciBels are calculated using logarithms. When you take a logarithm of a number between 0 and 1, you get a negative value. Actual po... | [
"url"
] | [
"url"
] |
6be2rd | Wanna Cry malware and how a system acquires it. | Everyone is doing a great explaining what the hell it does, but no one has explained how computers are being infected in the first place. | Technology | explainlikeimfive | {
"a_id": [
"dhlwaxq",
"dhluefa"
],
"text": [
"Long story short, the ransomware utilises two main exploits in Windows systems, known as EternalBlue and DoublePulsar. These were leaked by a Russian hacker group known as 'The Shadow Brokers' in April this year and most likely originated with the NSA. Et... | [
"url"
] | [
"url"
] |
6bfo2o | Why does a digital thermometer fluctuate in value when left alone in a room? | Assuming the room has a stable temperature (so no fans, open windows, open vents, A/C, heaters etc) | Technology | explainlikeimfive | {
"a_id": [
"dhm99uc"
],
"text": [
"Because the temperature in a room seldom is really stable. For this to be it would need to be air tight and every surface would need to have the exact same temperature. Else there will be air currents with different temperatures. In a normal room with windows the light ... | [
"url"
] | [
"url"
] |
6bftrr | Where did the F1-12 keys on a keyboard come from? | Technology | explainlikeimfive | {
"a_id": [
"dhmczab",
"dhmgra5"
],
"text": [
"Function keys originate from the late 60's as a way for the user to quickly give commands to a program. Unlike other keyboard keys the function keys do not have a specific purpose, what they do will change between different programs. These keys were, and ... | [
"url"
] | [
"url"
] | |
6bghrv | Why did support for .GIF end with windows Vista's photo viewer because of copyright(?) issues while IE could still view .gifs? | With windows XP you could view .gif files with Windows photo viewer but ever since windows vista (windows 7, 8, 8.1, 10) they are viewed as a single frame citing that the .gif format was "copyrighted" while at the same time being viewable in another product (i.e. IE). | Technology | explainlikeimfive | {
"a_id": [
"dhmeq4l"
],
"text": [
"Microsoft would have paid the license for IE since not being able to play animated gifs in your browser helps the competition. The same doesn't really apply to a photo viewer, which is really about viewing still images"
],
"score": [
4
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"text_urls": [
... | [
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"url"
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6bh8s0 | Why did wrapping the Xbox 360 in a towel and leaving it on temporary fix the Red ring of death? | Technology | explainlikeimfive | {
"a_id": [
"dhmjan5"
],
"text": [
"One common cause of the red ring of death was cracking and degradation of the solder joints on the CPU and GPU. By wrapping the Xbox it would cause it to heat to the point that those joints could be melted again and reformed."
],
"score": [
4
],
"text_urls":... | [
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6bi3dq | Is there any visual difference when my PC runs a game beyond 60 FPS? As a follow up question, when does the FPS become too high to actually make a noticeable difference? | Technology | explainlikeimfive | {
"a_id": [
"dhn1ynu",
"dhn6udd"
],
"text": [
"A higher frame rate will reduce frame latency no matter the refresh rate. Frame latency is how old the frames are on refresh. If you have a refresh rate of 60Hz while rendering 60FPS, you will have a frame latency of 16.66ms, while at 120FPS it will inste... | [
"url"
] | [
"url"
] | |
6bisuk | Why do we need separate file compression software? | Why did we need Zip or Stuffit to further compress files after an application made a file? Shouldn't the application make the smallest file possible? Did the app makers do terrible jobs of saving good small files? | Technology | explainlikeimfive | {
"a_id": [
"dhmyi38",
"dhmygq7",
"dhmxyrl",
"dhmxppx",
"dhn0rr9",
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"text": [
"A lot of common file-types are already compressed. Photos, videos, and audio are almost always in compressed formats. Apple's Pages word processing software saves files with a .pages extension, b... | [
"url"
] | [
"url"
] |
6bkxt0 | Why is SpaceX/Elon Musk able to make so many technological advances? I just recently saw how they underpay their employees too? What is the driving force behind all the advances? Is it funding, brain power, or a combination of the two? | Technology | explainlikeimfive | {
"a_id": [
"dhnirn1"
],
"text": [
"Because Elon Musk wants to. Most companies respond to current demand to make money. Elon Musk is more interested in technology in itself, and therefore responds to the demand of tomorrow, which is much less guaranteed to pay off. For example, Tesla loses an estimated $2... | [
"url"
] | [
"url"
] | |
6bky1z | Why does it take so long for results to come in from an election? | If it is all done electronically on a machine maintained by that county, why aren't votes tallied the moment you submit them and results posted 5 or 10 minutes after polls close? | Technology | explainlikeimfive | {
"a_id": [
"dhng6ak"
],
"text": [
"In a recent election I was involved in, all ballots were cast on paper, and counted by hand. This was in a single time zone, and polls closed at 8 PM. Results started coming in by 8:20 from more populous areas, where they had a full contingent of people counting the vot... | [
"url"
] | [
"url"
] |
6blotz | The difference between i5 and i7 processors. | Technology | explainlikeimfive | {
"a_id": [
"dhnmv3k"
],
"text": [
"The desktop version? Hyperthreading. I7 processors are able to run 2 distinct tasks per core, whereas an I5 can only do one. This is a bit of an oversimplification. You can read about the concept here: URL_0"
],
"score": [
5
],
"text_urls": [
[
"ht... | [
"url"
] | [
"url"
] | |
6bmrim | What does a Honey Pot do and how does it work? | Technology | explainlikeimfive | {
"a_id": [
"dhnwus8",
"dhnwley",
"dhnxgmq"
],
"text": [
"Its a fake server/website/address put out by people to collect data on hackers and how/what tatctics they use. I dont think they are ever used to track hackers down unless they are being really careless with their attack. ELI5: Basically a ... | [
"url"
] | [
"url"
] | |
6bmrve | Why are working mirrors so difficult to make in video games? | Technology | explainlikeimfive | {
"a_id": [
"dhnwwow",
"dhnwrhj"
],
"text": [
"To render a mirror correctly, one would have to essentially render a second frame, for the purposes of that mirror, with the vantage point of that frame being from a camera pointing \"back at you\" from the mirror (and then its image reversed left-right.)... | [
"url"
] | [
"url"
] | |
6bmz00 | How can two games look so different on the same console? | I played Dark Souls I and II, and I couldn't help but notice how much more beautiful II looked on the exact same Xbox that I played the first one on. How does this kind of change happen despite me never upgrading my hardware? | Technology | explainlikeimfive | {
"a_id": [
"dhnzsrk",
"dhny9dp",
"dhnz574"
],
"text": [
"Here's an analogy: A pencil is a tool you can create pictures with. It is limited, for example you are not able to produce colours with it. (This would be what the console is just not capable to do). But within the things you are able to do... | [
"url"
] | [
"url"
] |
6bnk2c | Why / How Linux Is More Secure Than Windows | Technology | explainlikeimfive | {
"a_id": [
"dho20j5",
"dho3obg",
"dho1yk7"
],
"text": [
"The main reason is because fewer people use it. Put yourself in the shoes of a hacker. You can spend several weeks developing some malware for Linux, which will target 2% of all computers. Or you can spend the same amount of time developing... | [
"url"
] | [
"url"
] | |
6bopoh | What does paying my TV licence actually pay for these days? (UK) | Technology | explainlikeimfive | {
"a_id": [
"dho9srb"
],
"text": [
"The TV licence fee is a tax collected by the BBC and primarily used to fund the radio, television and online services of the BBC itself."
],
"score": [
5
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
6bppaz | Will two supercomputers playing chess against each other always have the same outcome? | If two supercomputers play chess against each other, will the outcome always be the same? Consider that they will always play the best possible move and that they do not learn from past matches. If not, which I believe is the case, why not? | Technology | explainlikeimfive | {
"a_id": [
"dhoi4gc",
"dhojzjn"
],
"text": [
"Computers playing chess often include the use of a random number generator to choose between moves of apparently equal value. Such generators often vary by time of day or some other input to ensure unpredictability.",
"Chess has a large game tree; est... | [
"url"
] | [
"url"
] |
6br0ke | Why has only the United States been to the moon? | Title says it all. | Technology | explainlikeimfive | {
"a_id": [
"dhoxk9c",
"dhotn5j",
"dhou2eo",
"dhouutw"
],
"text": [
"China, Japan, SpaceX, SpaceIL, and India all plan on going to the moon, with both probes as well as manned missions. The primary reason to go is the R & D required to get there has a huge economic return and provides a solid ... | [
"url"
] | [
"url"
] |
6brc2p | If AndroidO is trying to save battery life, why does the theme use so much white? | Especially with an oled screen on my pixel (and likely many new phones) why would you make it brighter than you need to? | Technology | explainlikeimfive | {
"a_id": [
"dhp98p7"
],
"text": [
"Take your phone it to the brightest room of your house, or into direct sunlight, and turn the brightness to its lowest setting. You will experience glare. The display is designed to simulate the ambient brightness so as to maintain visibility. Similarly, Google maps ha... | [
"url"
] | [
"url"
] |
6bs88g | Why do (controversial) reddit posts get 'reset' to zero? | Technology | explainlikeimfive | {
"a_id": [
"dhp42nd"
],
"text": [
"When someone supports a view they upvote, when they don't they downvote. If something is controversial it by definition is not going one way or the other and instead have a lot of people both upvoting and downvoting it. As such it will sit somewhere near zero which is t... | [
"url"
] | [
"url"
] | |
6bt4i1 | Moore's Law - Does computing power really double every 18 months? Will this ever plateau out? | I started wondering why Hollywood is remaking so many movies from the 90s and even 2000s, and I self-concluded that I bet it's because there are much better CG effects, and they want to re-tell those popular stories with updated technology (even though we are only talking 10 to 20 years worth of time). Then I starting ... | Technology | explainlikeimfive | {
"a_id": [
"dhpbwlh",
"dhpe7jk",
"dhpl1j0"
],
"text": [
"\"Moore's Law\" is actually just an observation of a historical trend - the *density of transistors* tends to grow exponentially, doubling every 18 months. This tends to translate to more transistors and, when coupled with improvements in c... | [
"url"
] | [
"url"
] |
6bt5wy | What causes .jpeg pictures to have grainy parts on the image? | Technology | explainlikeimfive | {
"a_id": [
"dhpbwa8"
],
"text": [
"The JPEG compression algorithm breaks up the image into 8x8 squares and compares them to a set of 64 predefined patterns. In short, the way it compresses the image is in squares. Depending on the image this may cause blocky artifacts."
],
"score": [
6
],
"te... | [
"url"
] | [
"url"
] | |
6btw08 | How do game developers develop games for consoles that are not yet released? Also is the source code for games the same on Xbox as it is on the PlayStation? Or does ever piece of the code need to be rewritten. | Technology | explainlikeimfive | {
"a_id": [
"dhpilht",
"dhpi3c9"
],
"text": [
"Console manufacturers settle on the hardware at least a year in advance of actually releasing the console. Then they make machines called 'dev kits' to send to devs. Dev kits are computers with the same type of hardware as the console, usually a little st... | [
"url"
] | [
"url"
] | |
6bu5tj | Why does facebook need two apps, one for messenger and one for general use? | Technology | explainlikeimfive | {
"a_id": [
"dhpnc9g",
"dhpodbm",
"dhpl3j4",
"dhq6zvg"
],
"text": [
"Because messaging used to be a secondary product. The primary Facebook usage used to be the status updates, commenting and the stuff. People were active Facebook users who went to a website, entered their passwords and logged... | [
"url"
] | [
"url"
] | |
6bucr6 | Where does deleted data go? | Technology | explainlikeimfive | {
"a_id": [
"dhpnx6x",
"dhplspj",
"dhpo053"
],
"text": [
"Imagine the device you are saving your data to as a library with a special place for each book and an index list that tells you in which book you have to look for a specific information (piece of data). Now when you delete data, usually onl... | [
"url"
] | [
"url"
] | |
6buzzb | What is a neuron in a neural network? | Help, please. | Technology | explainlikeimfive | {
"a_id": [
"dhprpeh"
],
"text": [
"It's more or less the same thing as a neuron in your brain. It takes input and have weight for each of those input. If the score reach a threshold, it fires (send a 1 to the next neuron). If not it sends a 0 to the next neuron. Now if you want to know how a neural netwo... | [
"url"
] | [
"url"
] |
6bw1yl | How come hotel key cards get erased by being near cell phones, but credit cards don't? | Technology | explainlikeimfive | {
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"dhpxdrg",
"dhq4nek",
"dhpxt0d",
"dhq2z47",
"dhq7jvb",
"dhq5stj",
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"text": [
"I actually asked something similar a while back and was given a fair answer. What it boils down to is the strength of the equipment used to magnetize the cards. A stronger device m... | [
"url"
] | [
"url"
] | |
6bw50u | How does the White House prevent visitors or the press pool from planting a bug in the Oval Office? Do they sweep it after every visit? | Technology | explainlikeimfive | {
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"dhr32i3",
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"d... | [
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] | [
"url"
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6by8wg | Why is Adobe Flash so hated? | Technology | explainlikeimfive | {
"a_id": [
"dhqfqht"
],
"text": [
"It's slow, repeatedly has been the target of severe security breaches affecting many users, it's buggy, it's constantly harassing the user to update, and it's mostly used for ads. Ever since iOS, HTML5 and broad support for h.264/5 and webm videos, nobody wants to bothe... | [
"url"
] | [
"url"
] | |
6c23rp | How do companies know not to use the same barcode on different products from other companies? | I was at an enormous department store the other day and I got to thinking about how each item has a barcode, but they're all different. How do companies keep from using barcodes that are already assigned to other products? Are the company details coded in the barcode (brand, model, style, etc.)? Edit: Wow! Thank you to... | Technology | explainlikeimfive | {
"a_id": [
"dhrbron",
"dhrs6en",
"dhrgxzg",
"dhrkl4l",
"dhrobou",
"dhrm158",
"dhrki7o",
"dhs2rq9",
"dhro6im",
"dhrvbss",
"dhrykv1",
"dhrivc2"
],
"text": [
"There is an organisation in place called the GS1. It is a non-profit based in Belgium which, among other ... | [
"url"
] | [
"url"
] |
6c2at2 | The problems with nuclear power | Technology | explainlikeimfive | {
"a_id": [
"dhrm259"
],
"text": [
"Mostly exaggerated. Obviously the biggest problem with nuclear power is the possibility of a meltdown contaminating hundreds of square miles of land. However even including Chernobyl and Fukushima nuclear is in fact the safest form of energy generation. People die every... | [
"url"
] | [
"url"
] | |
6c2vn4 | The process of 'remastering' music | There are many music albums from the past (often the 'classics') that are re-released, and carry the label 'remastered'. Obviously we have more advanced recording and editing techniques nowadays than we did in the past, but what changes can you still make to a digital recording once it's been released? And what do you ... | Technology | explainlikeimfive | {
"a_id": [
"dhritcx",
"dhrjz8e",
"dhrk3oq"
],
"text": [
"There are a multitude of ways to \"remaster\" music, but it's usually to improve the sound. Typically, when an engineer is creating the \"master tracks\", they will try to record each track (each instrument and voice) separately and as \"dr... | [
"url"
] | [
"url"
] |
6c439w | Why does ctrl+alt+del'ing into task manager sometimes unfreeze frozen applications in windows? | Technology | explainlikeimfive | {
"a_id": [
"dhrq5rb"
],
"text": [
"Most likely it doesn't. Unless freeze is somehow fixed by changing window focus, pressing ctrl+alt+del doesn't affect the program in anyway. Probably application just wasn't completely frozen or suck in forever loop. Windows shows application being frozen if it doesn't ... | [
"url"
] | [
"url"
] | |
6c47f4 | In the age of high definition audio why does the speaking portion of the Emergency Broadcast System sound so horrible? | Technology | explainlikeimfive | {
"a_id": [
"dhrqay5"
],
"text": [
"The emergency messaging systems aren't desgned to be slick and high tech, they're designed to be extremely robust and easily serviced. These setups date back to the cold war or even earlier and are supposed to continue providing emergency messaging capability even if th... | [
"url"
] | [
"url"
] | |
6c4n5r | How can software not have mass? | How can software not have mass if it fills a space/hard drive and can get to the point where no more "bytes" can "fit" inside said drive? What is being filled and shouldn't there be an observable change in some type of measurement if not mass? So basically, how can software have no physical presence yet operate on phys... | Technology | explainlikeimfive | {
"a_id": [
"dhru09g",
"dhru42n",
"dhrtraa",
"dhrtsjg"
],
"text": [
"Consider a table covered in coins. You can store information by turning coins to heads or tails, each coin representing one bit. We might say the table is \"full\" when you're using all the coins to represent some meaningful ... | [
"url"
] | [
"url"
] |
6c5e97 | How were ISP's able to "pocket" the $200 billion grant that was supposed to be dedicated toward fiber cable infrastructure? | I've seen this thread in multiple places across Reddit: URL_1 URL_0 I'm usually skeptical of such dramatic claims, but I've only found one contradictory source online, and it's a little dramatic itself: URL_2 So my question is: how were ISP's able to receive so much money with zero accountability? Did the government re... | Technology | explainlikeimfive | {
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"dhsihdm",
"dht4ivn",
"dht6645",
"dhskxkk",
"d... | [
"url"
] | [
"url"
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6c5fbt | How do countries check the licence plates of foreign vehicles? | If a car with from Canada or Mexico passes is in the US how can police check their licence plate? Do all three countries share their license plate database? | Technology | explainlikeimfive | {
"a_id": [
"dhs4uzg"
],
"text": [
"in europe, if a foreign car goes too fast and is photographed, there are two possibilities: (a) it is not possible to sue the person, but they are stored in the system, and in case they are coming back and are controled, they will have to pay. (b) there are bilateral tr... | [
"url"
] | [
"url"
] |
6c5k1l | Why does the US govt still bother to fly spy planes over other countries when we have satellites? | Technology | explainlikeimfive | {
"a_id": [
"dhs74yl",
"dhs1f4e"
],
"text": [
"To elaborate a little on what others have already noted: 1) Airplanes fly *much* closer to the ground than satellites do, even when they're 70,000 feet up (or higher). This means the cameras can see smaller things. 2) In theory you can send an airplane an... | [
"url"
] | [
"url"
] | |
6c7w1a | How are earphone/headphone manufacturers able to make "better" sounding headphones? Which variables are altered to get higher quality sound? | There are many different brands making headphones with different qualities and characteristics, but seemingly made out of fundamentally the same materials. How are manufacturers tweaking their headphones to the kind of sound and quality they want to produce? | Technology | explainlikeimfive | {
"a_id": [
"dhsnf26"
],
"text": [
"First thing to be aware of is the design cycle (how long it takes from product conception to you seeing it in the store) is much longer than other consumer electronics. For example, a cellphone has a turnaround of about 12-16 months, headphones are more like 3-5 years. ... | [
"url"
] | [
"url"
] |
6c8wco | How do computer parts (as in CPUs, RAM, Motherboard, etc) work physically | Technology | explainlikeimfive | {
"a_id": [
"dhsvu9w"
],
"text": [
"At the most basic level, its just electrons moving down the wire. It is of course, much more complicated than that and there is an entire field of engineering for the physical design of various computer parts. So, I'll start with the simplest, RAM. RAM is made up of a s... | [
"url"
] | [
"url"
] | |
6c9lp8 | IPv6 Subnetting | ELI5 IPv6 Subnetting as we have not been able to find a decent online explanation so far. Please we are desperate at this point | Technology | explainlikeimfive | {
"a_id": [
"dht09zw"
],
"text": [
"IPv6 uses a term called prefix for subnetting. The general idea is the almost the same as IPv4. [Here's a short primer.]( URL_0 ) Taking an example from the primer: 2001:db8::/32 - means a /32 ipv6 network prefix - so the first 32 bits (2001:db8 in this case) will stay ... | [
"url"
] | [
"url"
] |
6c9qdm | How does Minecraft procedurally generate random and unique structures and how can it make an identical one with the same speed? | Ignoring seeds (at first), how does Minecraft generate things like hills and natural terrain (even ignoring generated structures like dungeons)? After all Minecraft is indie and I don't expect the code to be extremely over the top as compared to triple A games. How does it generate unique terrain block by block? | Technology | explainlikeimfive | {
"a_id": [
"dht1gfq",
"dht064y"
],
"text": [
"It's many, many simple elements stacked on top of each other. The base terrain uses 16 octaves of a form of [Perlin noise]( URL_0 ). Each octave is a basic noise generator, scaled to make large and coarse or small and fine features. It actually has two 16... | [
"url"
] | [
"url"
] |
6c9sp7 | What does it mean that mp3 is now "dead"? | With support being now dropped what does this mean for mp3? Will it still be used? Does this raise security concerns? What replaces mp3? | Technology | explainlikeimfive | {
"a_id": [
"dht0wwc"
],
"text": [
"MP3 isn't dead from a consumer POV. It's actually better than ever. A patent is when you essentially say \"I have invented this method of doing *something* on this date, and anyone who creates something using that method has to get my permission.\" For example, you migh... | [
"url"
] | [
"url"
] |
6ca2a9 | How do DJs give live concerts if all of their sounds are digitally created and recorded? Seems to me they could just hit the play button, which would defeat the purpose of a live performance. | Technology | explainlikeimfive | {
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"dhtz6bl",
"dhtkjbc",
"dhtg1lt",
"dhtbb96",
"dhtiwdd",
"dhtdg7l",
"d... | [
"url"
] | [
"url"
] | |
6caba6 | why aren't oil dipsticks white | All oil dipsticks I've ever seen are black plastic or dark metal. Why not make an white to contrast against the black oil? | Technology | explainlikeimfive | {
"a_id": [
"dht3yuh"
],
"text": [
"Because it's in the engine compartment, it's going to get covered in oil and grime. So they are either black or orange or yellow. Also you read them on the stick, not the cap, and the stick is metal because it goes into the engine and gets very hot. A plastic colored st... | [
"url"
] | [
"url"
] |
6caoux | It is recommended to use random words over random characters so it will be easier to remember and still difficult to hack into. But can't hackers implement a keyboard-like autocorrect in their bruteforce script to guess words after some letters ? | Thanks everyone, I think I get it now. Sorry if I've been stubborn, it messed with my head for quite some time already. | Technology | explainlikeimfive | {
"a_id": [
"dht77bm"
],
"text": [
"You can think of every word as its own unit, just like a character is a unit. The crux of using words instead of letters is that the number of different words available utterly dwarfs the amount of letters. If the password is two units long, if the units are just alphan... | [
"url"
] | [
"url"
] |
6cb7z4 | Why do most Americans not use a kettle while the rest of the world does? | Technology | explainlikeimfive | {
"a_id": [
"dhtcp94",
"dhtba2o",
"dhtdcwv",
"dhtcrq9",
"dhtbeml",
"dhtfeat",
"dhtc9ec",
"dhtsgy3",
"dhtxs98"
],
"text": [
"Simple ELI5 answer - Tea isn't as popular over here as coffee. You might find a coffee pot in as many American houses as kettles in British ones. As f... | [
"url"
] | [
"url"
] | |
6cbrhu | How card chips are safer than mag stripes if you can just swipe your card anyways | My chip hasnt worked in months and I just swipe. Normally the machine takes 1-3 chip failures and says "try using mag stripe" so if it lets you use the stripe, then what is the point of the chip? | Technology | explainlikeimfive | {
"a_id": [
"dhtg01i",
"dhtg7vi",
"dhtfshf",
"dhtiv0o"
],
"text": [
"This is either a fault of the system in your home country, accepting swipes for chip cards when they shouldn't, or is a deliberate use of both during a transition period - the stripe only exists as a backup during the time yo... | [
"url"
] | [
"url"
] |
6cbvxm | How can oil with the same viscosity be better for old cars? | Some oils advertise being better for older cars. How does it work? | Technology | explainlikeimfive | {
"a_id": [
"dhthd3q"
],
"text": [
"They contain seal swelling agents such as esters, pthalates or sufloanes. These are absorbed into plastic/rubber seals, and cause them to swell up. This reduces the oil leaking through worn seals."
],
"score": [
6
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] |
6cd6ub | Why can you charge Nintendo Switch using a laptop but if you connect it to a MacBook you actually charge the MacBook instead of the console? | Technology | explainlikeimfive | {
"a_id": [
"dhtq7bo"
],
"text": [
"USB-C negotiates bi-directional power control and communication on a per device basis. If the MacBook USB-C controller determines that the Switch is a valid recipient for power, it will reverse the power direction and provide output power from the charging port. This wa... | [
"url"
] | [
"url"
] | |
6cdysm | How can some older video games run smoothly on PCs while some other old games cannot? | Technology | explainlikeimfive | {
"a_id": [
"dhtz61a",
"dhtwwvv"
],
"text": [
"without an example it's hard to answer as your question could have many answers depending on what you specifically have in mind. For instance a really old computer game may not be able to run properly because of differences in hardware and the OSs... i.e.... | [
"url"
] | [
"url"
] | |
6cf7nj | How do cameras take videos at 3000-4000 frames per second, while still having a shutter speed of 1/100? | Hi. So I just saw this gif on the front page: URL_0 . (It's the ladybug unfolding its wings) I've dabbled in some amateur videography and generally I've been told to maintain my shutter speed at 1/30 so that it lines up somewhat close to the standard frame rate of 24 fps. But how does a camera take these things? How ca... | Technology | explainlikeimfive | {
"a_id": [
"dhu7leg"
],
"text": [
"That's not the shutter speed, it's the effective speed of the video. Since it was recorded at 3000fps and played back at 30fps, we're seeing events at 1/100 of the original speed."
],
"score": [
4
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] |
6cfbh3 | How were movies edited, processed and beautified with effects and text before computers were common? | Technology | explainlikeimfive | {
"a_id": [
"dhu7v8w",
"dhu98zm"
],
"text": [
"Movies were edited by physically cutting and arranging film with blades and adhesive tape. The amount of \"processing\" and effects were very limited, but might include frame by frame airbrushing or practical effects. Text would be added by painting the w... | [
"url"
] | [
"url"
] | |
6cfi0u | Why can't we program AI/deep learning machines to tell us how they're identifying patterns? | Technology | explainlikeimfive | {
"a_id": [
"dhu9ajg"
],
"text": [
"We can absolutely take a look at the neural networks AIs use to fo their thing and try and analyse them. The problem is that complicated neural networks have thousands of nodes with millions of connections. And, since they are trained rather than designed, they don't fo... | [
"url"
] | [
"url"
] | |
6ck5cv | I Know it is cheaper to build your own desktop rather than buying one prebuilt, does this apply to laptops too? | Technology | explainlikeimfive | {
"a_id": [
"dhv8tta",
"dhv938g",
"dhv95bv"
],
"text": [
"In my experience, there is no way to build a laptop from scratch. About the only changes you can make is to upgrade the RAM. Processor, hard drive, and graphics processor are all built into the machine, and they are not changable. Sorry",
... | [
"url"
] | [
"url"
] | |
6cmt8c | Whats the difference in the manufacturing process of 30$ and 300$ headphones | They both are headphones, they both make sound. why the price difference? | Technology | explainlikeimfive | {
"a_id": [
"dhvu1aj",
"dhvv0wq"
],
"text": [
"Assuming we are talking cost to make rather than cost to buy as /u/GotPerl points out - there's all sorts of stuff that can be different. Quality of the magnet and coil in the cones is probably most important. That's what gives them their frequency respon... | [
"url"
] | [
"url"
] |
6cnlpb | Why do we still need to bring our license and registration to drive? Considering it's 2017 and we have enough technology to have all this information in the cloud / in our phones and match with the cops information. | Technology | explainlikeimfive | {
"a_id": [
"dhvyc5c",
"dhwj1a3",
"dhwd9p6",
"dhw2dc6",
"dhwd21e",
"dhw5r81",
"dhwhprw",
"dhwb6hv",
"dhwh6es",
"dhweyd0",
"dhwqydj",
"dhvzjvg",
"dhwj6qz",
"dhwcylv",
"dhvyfct",
"dhwr3ew",
"dhwj0ic",
"dhvyrbt",
"dhwfvsn",
"dhw1igy",
"d... | [
"url"
] | [
"url"
] | |
6cnvin | What does our (user) data actually look like when it is tracked, collected, analyzed and sold? | I guess this is a multi part question. First kind of things do Google, Facebook, Reddit track and collect? Is it on a per IP address basis, name basis? Next, what does the data that look like when Facebook for example sells it to a third party? What kind of information is is available through Google Analytics? Google d... | Technology | explainlikeimfive | {
"a_id": [
"dhw4u1d",
"dhwdtxh",
"dhwfjyx",
"dhwdqfs"
],
"text": [
"Former ad tech guy here. Your data (cookie or otherwise) is stored and parsed into segments (male, twenties, white) which are used by ad campaign managers to appropriately target you based off of needs and wants for each ad c... | [
"url"
] | [
"url"
] |
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