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61g1ab
If flash drives are so cheap and fast why aren't they a good replacement for a SSD?
So I've been wondering this for a while now, basically there are loads of benefits to flash drives to a solid state drive that i can think of off the top of my head, they're small and compact, portable, and most of all, very cheap compared to the counterpart. So why instead of using a SSD for you computer to store thin...
Technology
explainlikeimfive
{ "a_id": [ "dfe7own", "dfebi76", "dfe6udr" ], "text": [ "...numbers. just because it's subjectively fast doesn't mean it's actually fast. high end USB drives will have read/write speeds of somewhere in the 100MB/s range. your average SSD has read/write speeds in the 500MB/s range. high end SSD dr...
[ "url" ]
[ "url" ]
61gi1y
How do stoplights work? Are they timed and based on pressure?
Technology
explainlikeimfive
{ "a_id": [ "dfeamkw" ], "text": [ "Many intersections are controlled by a combination of timers and inductive sensors in the road. Each phase is generally set to have a maximum time, but the phase may be ended early or skipped entirely if there is no vehicle waiting at or moving past the sensor." ], ...
[ "url" ]
[ "url" ]
61hwfp
Why is it, that with bad (mobile) Internet reception, advertisements are often displayed perfectly while normal content seems to have "trouble"?
Technology
explainlikeimfive
{ "a_id": [ "dfenk61" ], "text": [ "The page is hosted on a server somewhere and the adds are drawing information from a different server. If the server hosting the webpage is slower than the ad host, then the adds can load before the page content. This effect can be removed by manually changing load orde...
[ "url" ]
[ "url" ]
61hyek
Why is it so difficult for some people to remember how to do simple "computer things" even though they've been shown it dozens of times?
Technology
explainlikeimfive
{ "a_id": [ "dfelqg8", "dfeu4qz", "dfelx4s" ], "text": [ "They have rationalised the process as 'too difficult' already and so don't make a true effort to learn it. 2c", "Listen to a song in English 3-4 times. Read the lyrics and sing along. Easy right? You will probably remember most of the l...
[ "url" ]
[ "url" ]
61jn6b
Why does sound quality drop when the volume is too high? What causes it to sometimes sound 'grainy'?
Technology
explainlikeimfive
{ "a_id": [ "dff1t6y" ], "text": [ "A [typical speaker]( URL_0 ) is a cone of paper that's attached to a magnetic system, with the magnetic force moving the paper up and down, according to the frequency of the music or sounds that are played. To make louder sounds, the speaker cone has to vibrate more vig...
[ "url" ]
[ "url" ]
61jrih
Why isn't there technology to mimic voices?
Technology
explainlikeimfive
{ "a_id": [ "dff1dwb", "dff4l3e" ], "text": [ "Actually we do. URL_0 The reason its so complicated is because we have so many dialects, accents, and speaking mannerisms. The program itself needs (I believe) a minute of speech from the subject before mimicing the speech.", "Hoverboards are easy; yo...
[ "url" ]
[ "url" ]
61kiud
How does an upstairs/downstairs light switch work?
We have a light upstairs that can be turned off upstairs and turned on downstairs... and the versa. What I don't get is how does the downstairs cut off the upstairs switch?
Technology
explainlikeimfive
{ "a_id": [ "dff7rt4", "dff8utk" ], "text": [ "The switches are connected with two wires - one wire connects the \"up\" position in both switches, and the other wire connects the \"down\" position. When the two switches are in the same position, electricity can travel through the wire that connects th...
[ "url" ]
[ "url" ]
61kt1p
Why is the default windows disk letter C: ?
Technology
explainlikeimfive
{ "a_id": [ "dff9nwa", "dff9qx1", "dffh0mx" ], "text": [ "C is normally the default internal HDD allocated letter because in the beginning of time A was used for a floppy disk unit and B was also used for removable storage, sometimes a tape drive or similar. Edit: in the 2 minutes of googling I ha...
[ "url" ]
[ "url" ]
61nah4
Why do batteries always face different directions in items like TV remotes?
I understand that batteries have positive and negative terminals, but what is the advantage of facing 2 batteries in opposite directions? Thank you in advance.
Technology
explainlikeimfive
{ "a_id": [ "dffs2mk", "dffrvag" ], "text": [ "A standard battery gives off around 1.5V. This is too low to run most electric circuits. A common lower voltage is 3V. To get double the voltage you can connect the batteries in serial with the positive terminal on one hooked up to the negative terminal o...
[ "url" ]
[ "url" ]
61nis1
Where do the noises in electric motors come from?
In a brushless motor, to my understanding, nothing makes contact with the coils and nothing should be making noise like in a brushed motor. But noises still come from brushless motors. What causes these noises?
Technology
explainlikeimfive
{ "a_id": [ "dffts1h" ], "text": [ "The motor is still turning an axle regardless of whether it's brushless or not. This movement is going to lead to sound either directly with the axle and whatever it's attached to moving air, or indirectly by the vibration of the parts touching the axle." ], "score"...
[ "url" ]
[ "url" ]
61o3tu
Why some people think that 'the web is dying'?
Technology
explainlikeimfive
{ "a_id": [ "dffza87" ], "text": [ "The Web was created in 1989 by Tim Berners-Lee as a means for individuals and organizations to publish documents online that could refer directly to _other_ documents via a \"link.\" 15-20 years ago (i.e., circa 1995 to 2003), a significant portion of the Web consisted ...
[ "url" ]
[ "url" ]
61om8g
how do YouTube creators who make adult content continue to profit and maintain their channels?
I've seen around that the new YouTube age restriction feature demonetises videos. How do channels such as h3h3, who aren't sponsored, make money?
Technology
explainlikeimfive
{ "a_id": [ "dfg3ark" ], "text": [ "If you're not being sponsored you may not make much money, I believe h3h3 does have various forms of sponsorship and/or companies paying for things. Its unlikely they will discuss details publicly, as such you may not know what the deal is behind the scenes. Some Youtub...
[ "url" ]
[ "url" ]
61p0m3
How did cops determine speed before the radar gun?
I got pulled over a few days ago, and I was wondering how cops determined speed before the radar gun was invented. Thanks in advance for an explanation.
Technology
explainlikeimfive
{ "a_id": [ "dfg62jl", "dfg5wfm", "dfg62bh", "dfgijb7" ], "text": [ "Cop here, it's called Pace Clocking. Essentially what I do is follow behind a car and match my speed with them so I they are not pulling away or going closer to me. Once that is done I, I go a couple of blocks to see if they ...
[ "url" ]
[ "url" ]
61r0s5
Why can't we upgrade our smartphones like we do on personal computers?
Technology
explainlikeimfive
{ "a_id": [ "dfglq69" ], "text": [ "Smartphones are very small. They are built with components that have to fit very tightly together, otherwise there either won't be room inside the case, or the components might interfere with each other, or the heat dispersal won't be effective and the phone will overhe...
[ "url" ]
[ "url" ]
61rovb
How do telephones work?
It has always baffled me how a telephone can transmit sound. It's something I just wrap my head around. How does the phone break the sound into transmittable data to then be reconstituted on the other end?
Technology
explainlikeimfive
{ "a_id": [ "dfgq8mk", "dfgq3x3" ], "text": [ "**Old, wire-based phones** Sound is just ordered vibration. When you speak, your vocal cords shake the air, and that air shakes the ear drum of the person you talk to. That person's brain turns that shaking into meaning. A phone has a microphone, which is...
[ "url" ]
[ "url" ]
61ryvn
Why do we want or need a "real" AI?
Technology
explainlikeimfive
{ "a_id": [ "dfgrvo4" ], "text": [ "Basically, we're gonna hit a wall with what we can achieve alone. Humans someday will reach a pinnacle of technology - tech becomes increasingly more and more complex as time goes on, so it is logical to infer that eventually we won't be able to make anything new alone....
[ "url" ]
[ "url" ]
61shfs
Why do schools still insist on standardized tests even though all the teachers and students find them to be dumb?
Technology
explainlikeimfive
{ "a_id": [ "dfgvpqv", "dfgvwte", "dfgyguk" ], "text": [ "Pretty simple. Because they are easy to grade and organize students based on a score. There are much better ways to gauge learning, but they require a lot more time and effort than filling in bubbles and running them through a machine.", ...
[ "url" ]
[ "url" ]
61tcci
Why is Google giving up on Google Fiber?
Is because the bureaucratic red tape/push back from the other major cable companies (Time Warner/Comcast/etc.) and the FCC? Or did they just not see it being a realistic profitable goal? (The ISP competition in America is a joke)
Technology
explainlikeimfive
{ "a_id": [ "dfh4mra", "dfh55n6", "dfh931i" ], "text": [ "from what google have said, the point of google fibre was to prompt competition... to make the existing providers \"pick up their game\", provide faster, cheaper, more relyable connections. what actually happened was that the oligopoly that...
[ "url" ]
[ "url" ]
61tu4u
Does data have mass?
If I have a backup tape, and fill it to capacity (say 6.25 TB in this case) does it weigh any more than it did when it was empty?
Technology
explainlikeimfive
{ "a_id": [ "dfh85qd", "dfh7jao", "dfh85r4" ], "text": [ "Yes and no. No electronic storage medium will have an appreciable change in mass when \"full\" or \"empty.\" Magnetic storage media (HDDs and tapes) work by flipping magnetic domains on the media which does not change their mass at all. Oth...
[ "url" ]
[ "url" ]
61ur5w
Hard drive data recovery.
I know downloadable applications exist and MAYBE some have somewhat worked for me in the past but why are there companies charging $3000 to recover some files from a hard drive? Is it just a scam or are they doing something beyond my knowledge?
Technology
explainlikeimfive
{ "a_id": [ "dfhguo4", "dfhfj1r" ], "text": [ "Data recovery software only works on data that is still (technically) on the physical disk. Let me explain: Data on physical medium is stored as 1s and 0s, you may already know this. So there's different sectors filled with sequences of 1s and 0s. In orde...
[ "url" ]
[ "url" ]
61vyt1
How do the helmet microphones that a helicopter or small plane pilot uses only pick up voice and not the helicopter engine?
Technology
explainlikeimfive
{ "a_id": [ "dfhqgot", "dfht9z5" ], "text": [ "The use active noise reduction. There are two microphones, one pointed towards the mouth and one pointed away. One picks up speech + noise and the other just picks up noise. Subtract the 2nd signal from the first and you are just left with the speech. Sim...
[ "url" ]
[ "url" ]
61w6k5
Why do computers take longer to register an incorrect password on login rather than a correct one?
Technology
explainlikeimfive
{ "a_id": [ "dfhrnv7", "dfi7wxn", "dfhrxo7", "dfhrnr1" ], "text": [ "Many computer systems put in a deliberate pause to make it harder for people to guess passwords. If you can only make 10 guesses a minute, instead of 100, it makes it harder to get into the system.", "I'm going to assume ...
[ "url" ]
[ "url" ]
61w7do
How are the photos "shot on iPhone 7" not pixelated and blurry when enlarged to billboard size?
There are several billboards in San Francisco with beautiful photos taken on an iPhone 7. The 7 only has a 12MP camera. So how do the photos still look so clear when they are enlarged to billboard size?
Technology
explainlikeimfive
{ "a_id": [ "dfhssl0" ], "text": [ "You'd be surprised at the resolution most billboards are printed at. When you are standing 20 feet away or more the DPI requirements go *way* down. Those big 48 foot wide billboards? Often less then 10 pixels per inch which means a 10MP image is all you need (though due...
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[ "url" ]
61wbm1
How do heart rate monitors measure calories burned during activities?
Technology
explainlikeimfive
{ "a_id": [ "dfhu22w" ], "text": [ "guesstimation basically. Heart rate correlates somewhat with level of physical activity which in turn correlates with calories burned. If you throw in some other tools like accelerometers, they can get a better idea of what you're doing (running looks different from bik...
[ "url" ]
[ "url" ]
61wx6z
difference between single and triple phase power? Also, what determines what kind of power is being ran to a location, is it some kind of transformer on the powerlines that leads to the house?
Technology
explainlikeimfive
{ "a_id": [ "dfi7jrp" ], "text": [ "I'm going to be assuming a basic knowledge of AC power for this: So in single phase AC your active wire is cycling from +240V to -240V and back at 50Hz (Depends where you live). This means that the circuit will be at 0V (turned off) for an instant 100 times per second. ...
[ "url" ]
[ "url" ]
61x0gg
Why do most websites default to creating an account instead of a return user login?
Technology
explainlikeimfive
{ "a_id": [ "dfhzbkn", "dfhzer0" ], "text": [ "They would rather a site newbie not have to search to find the \"sign up\" page but rather a returning, and more experienced site user navigate to find the login page.", "Maybe easier for new users. Helps guide them to what the website wants most, new...
[ "url" ]
[ "url" ]
61ximj
How do people who learned coding and programming think differently from people who have never done it?
Technology
explainlikeimfive
{ "a_id": [ "dfiall3", "dfic932", "dfi8thn", "dfibb73", "dfi3mjm", "dfib6qm", "dfibbk0", "dfi42vv", "dficgwr", "dfi9len", "dfi59tt", "dfie8th", "dfigebf", "dfibc62", "dfii2j0", "dfi5f91", "dfighva", "dfiabot", "dfihreo" ], "text": [ "...
[ "url" ]
[ "url" ]
61xlkk
Elon Musk's venture, Neuralink. How and why?
It seems so interesting but I don't have enough knowledge in neuroscience or AI to figure out what this could help with in practical applications.
Technology
explainlikeimfive
{ "a_id": [ "dfifhyz", "dfigit7", "dficlj3", "dfi3z6j" ], "text": [ "First, I'd say don't think about practical applications now, think about what the world might be like in 20 or 50 years, and what the practical applications will be like *then*. With the [inevitable march of technological pro...
[ "url" ]
[ "url" ]
622zoe
How are meteorologists able to forecast the weather 15+ days in advance? How often are those forecasts accurate?
Technology
explainlikeimfive
{ "a_id": [ "dfjd5ji" ], "text": [ "A few models will show weather out a few weeks. Some models are for determining seasonal outlooks on monthly basis. Most Meteorologist use models as guidance to their skills, and all will tell you there are drop offs in model guidance at days 3 and 5. Most Mets will not...
[ "url" ]
[ "url" ]
623wwo
Why did older video games use checkpoints or locations to have to save your game instead of an options menu button like is most common now?
more like why technically, was it limited by the systems or etc...
Technology
explainlikeimfive
{ "a_id": [ "dfjjrhk", "dfjk4l4", "dfjte43" ], "text": [ "I did some reading on this and it seems that the method of saving really depends on the developer, and less about technology. Not to say there were technological constraints, of course. Games use to be cartridge based, so saves had to be as...
[ "url" ]
[ "url" ]
6242nb
What does https everywhere do?
Technology
explainlikeimfive
{ "a_id": [ "dfjkxy8", "dfjlvnl" ], "text": [ "The s in Https means secure, that means its encrypted before it goes over the network so that some one listening over the networks can not read it. when ever a password, credit card number, or any other private information you would not want someone to re...
[ "url" ]
[ "url" ]
6243qz
Why do connection speed sites like Ookla always have higher speeds than actual download speeds?
Technology
explainlikeimfive
{ "a_id": [ "dfjl7v3", "dfjlrmy" ], "text": [ "Check the units. Speedtests give you speeds in megaBITS per second (Mb/s) Downloads are often measured in megaBYTES per second (MB/s) Notice the capitalisation of B. There is a factor of 8 difference between the two. 1 MB = 8 Mb.", "* Many of the spee...
[ "url" ]
[ "url" ]
625brh
Let's say I bought this big bulk of data from my local ISP under S.J.Res.34. What exactly am I looking at?
Technology
explainlikeimfive
{ "a_id": [ "dfjv1kb" ], "text": [ "Political affiliations, shopping trends, personal kinks, how many people google stupid shit out of laziness, and all the blackmail you could potentially want over another person. In reality, sponsored content is going to get harder to distinguish from real news articles...
[ "url" ]
[ "url" ]
625n4j
How do popular YouTubers make money?
Technology
explainlikeimfive
{ "a_id": [ "dfk33bh", "dfk4teb", "dfkep28", "dfk5n8n", "dfka8xq", "dfkjfvb", "dfk08fl", "dfk6p51", "dfk7e3g", "dfjwdtx", "dfkcco0", "dfkd7lm", "dfk6oqy", "dfk3m46", "dfk9vy2", "dfk7jrl", "dfk0aue", "dfk079h", "dfkdlik", "dfk6hvv", "d...
[ "url" ]
[ "url" ]
625yqy
the consequences of the removal of FCC's Internet privacy protections, for America and abroad.
Technology
explainlikeimfive
{ "a_id": [ "dfk0qyo", "dfk12xc", "dfjzzvx", "dfk36bd", "dfk163d" ], "text": [ "Follow-up question: what is the situation in Europe like? I read somewhere that in the EU ISP's already are selling internet usage data of their clients.", "As far as I have heard this is already done on a ...
[ "url" ]
[ "url" ]
627tzs
Why does the US model of the Samsung Galaxy S8 have a different processor than the global model?
Technology
explainlikeimfive
{ "a_id": [ "dfkeymw" ], "text": [ "Qualcomm owns many many patents in the US basically forcing any company to use Qualcomm's modem to connect to wireless signals. Companies are free to use any SoC (System on a Chip) they want, the Galaxy S6 used the global SoC version but used a Qualcomm modem. The big i...
[ "url" ]
[ "url" ]
628y0c
What is an API?
I'm hearing a lot about APIs lately, Facebook API, Spotify web API, etc. I know the acronym, but what is an API?
Technology
explainlikeimfive
{ "a_id": [ "dfkovfy", "dfknkey", "dfkpwog" ], "text": [ "An API is an Application Programming Interface. It is a structured way for one program to offer services to other programs. In the case of website APIs these programs are running on different machines - a program running on Facebook's serve...
[ "url" ]
[ "url" ]
628zjv
What happens to the old pavement when a road gets repaved?
I once heard someone say that there is a machine that melts the old pavement and repaves but I'm not entirely sure that's true. Thanks!
Technology
explainlikeimfive
{ "a_id": [ "dfkrqtl", "dfknzof" ], "text": [ "Sometimes they just grind it. At my job they replaced the road and gave us the grindings to spread about the yard, and half of my home driveway is ground asphalt", "The term you are looking for is asphalt recovery. Google has lots of very detailed inf...
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[ "url" ]
629jt1
What information, explicitly, can now be sold by ISPs? It looks like the new law was replacing rules that had not yet gone into affect, so how is this any different than how the internet was 4 years ago? Could our data have been sold then before the rules that were voted on in Oct 2016?
Technology
explainlikeimfive
{ "a_id": [ "dfku8jm" ], "text": [ "Your data has been being sold by Google, your web browser, etc for years. Google makes money by compiling tens of thousands of users browsing trends and data into one big anonymous package (for example: they don't care what michiruwater is looking up, they care what 18-...
[ "url" ]
[ "url" ]
629vyj
How do they recyle plastic when it is toxic to breathe when burned?
My friend and I couldn't seem to up with how they do it since we all know not to put plastic in the microwave.
Technology
explainlikeimfive
{ "a_id": [ "dfkw8xt" ], "text": [ "They're not burned. They're just heated up to their melting point. And it's all done in a chamber with very little oxygen in it to prevent the plastic from catching fire or otherwise chemically changing." ], "score": [ 10 ], "text_urls": [ [] ] }
[ "url" ]
[ "url" ]
629wfo
computers today have a CPU and a GPU. They use the GPU to do calculation because they say GPUs are much faster, so why in the hell they don't make CPUs as faster as GPUs and they can still have a GPU and make the whole thing faster as hell?
Technology
explainlikeimfive
{ "a_id": [ "dfkvus5", "dfkvycy", "dfkvr7a", "dfkvxpi" ], "text": [ "Because GPUs are designed to do *very specific* kinds of calculations more quickly, typically those used for graphics processing. Certain type of algorithms (graphics processing, linear algebra, video encoding etc...) can be ...
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[ "url" ]
629zls
What is the difference between the old USB and USB C?
Technology
explainlikeimfive
{ "a_id": [ "dfkxvdj", "dfkwggf" ], "text": [ "So, there's kind of two parts to this, and I'm not sure if you're specifying type c to exclude usb3, or just conflating the two, so ill explain both a little. USB 3.0 is a USB protocol designed to allow for more advanced features like more options for sou...
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62a7ls
Are cellphones susceptible to the same viruses PC and Mac are?
So in the realm of most technologies my knowledge is, sadly, similar to that of a 5 year old. I would have to assume that they are susceptible as they are just primarily smaller computers. As an addition to the original question. Are Androids more prone to them than Apples or is that myth of Apple virus immunity just h...
Technology
explainlikeimfive
{ "a_id": [ "dfl0f8b", "dfl34k9" ], "text": [ "The exact same viruses? No, not generally. Android, iOS, Windows, and macOS are all very different systems. Each has a unique set of vulnerabilities to exploit. Most of those vulnerabilities, at any point in time, are generally unknown or are a closely gu...
[ "url" ]
[ "url" ]
62aob5
Why do some YouTube videos that show episodes of TV shows have unrelated borders in them that take up a third of the screen?
[]( URL_0 )
Technology
explainlikeimfive
{ "a_id": [ "dfl29tp", "dfl25pw" ], "text": [ "There are 2 reasons, the first is the uploader is trying to avoid the video being automatically flagged as copyright, Youtube has an automated system that can detect copyrighted content, an easy way to trick this is to either frame the video or to use sta...
[ "url" ]
[ "url" ]
62dx4b
What data can ISPs now sell?
Technology
explainlikeimfive
{ "a_id": [ "dfm3bad", "dflvloj", "dfltcqu", "dflpwm5", "dfm2rrc", "dflvy0m", "dfm7edp" ], "text": [ "There is a lot of misinformation regarding this recent resolution (H. Res 230) passed by Congress. The [FCC rule they repealed]( URL_0 ) was only passed back in October 2016, and w...
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[ "url" ]
62e4xg
We download antivirus software on our laptops but not our phones, despite using our phones for the same sorta stuff. Is that cos our phones are already more secure? If so, why can't laptops be made as secure too? [Technology]
Technology
explainlikeimfive
{ "a_id": [ "dflrvni", "dfm23to", "dfm15j1", "dfmjqrg" ], "text": [ "They are 100% NOT more secure in the sense of being immune to viruses. However a common way for viruses to be put on devices is to trick the user into downloading and installing something on their device. When you go online a...
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[ "url" ]
62eewl
how do game developers determine the level of complexity and fidelity they can get in their engine from a hardware platform?
Technology
explainlikeimfive
{ "a_id": [ "dflud7p" ], "text": [ "The hardware is capable of doing a certain amount of calculations per second. The game will require a certain amount of calculations per second, which can be raised or lowered by changing certain aspects of the game (draw distance, texture resolution, model quality, lig...
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62hs8a
How is SpaceX's successful reusable rocket landing more significant than the space shuttle program?
I am not questioning the significance of this tremendous achievement; I would just like to understand what makes it an even greater accomplishment and what are the improvements and benefits when compared to the space shuttle, which was also a reusable space transport vehicle.
Technology
explainlikeimfive
{ "a_id": [ "dfmom3z", "dfmoone" ], "text": [ "The Space Shuttle got back a small part of the system, plus some solid rocket booster parts that were recovered. The SpaceX solution gets back more than half of the rocket.", "The space shuttle could barely be called a reusable space vessel. Whenever ...
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[ "url" ]
62hz92
How to fake number apps (such as Phoner, Burner, etc) work?
I always wonder how the apps such as Burner, where you get a fake cell phone number to text and call people with work? How does the app get fake numbers? How can my fake number call and text people? With an app like Phoner, how are they offering this service for free? (Although you can buy more than one number, or buy ...
Technology
explainlikeimfive
{ "a_id": [ "dfn7ctz" ], "text": [ "The app doesn't use fake numbers, the numbers are real. Their app changes some configuration on your phone so that... When you make a call your phone dials Burner which then forwards your call to the number you dialled. The number you dialled receives the call from your...
[ "url" ]
[ "url" ]
62i0lk
Watching COPS and wondering why radios always sound so scratchy/crackly? Is it possible to get it as clear as the sound we get when talking through phones?
Technology
explainlikeimfive
{ "a_id": [ "dfmphjc" ], "text": [ "Nope. Cell phones have a huge amount of infrastructure in order to work. Remember when you've got no bars, first responders wouldn't be OK with that. So, they use radios with bigger antennas and more power and the signal goes directly to their police station. Just today...
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[ "url" ]
62i5xg
how does overclocking a computer work?
Technology
explainlikeimfive
{ "a_id": [ "dfmqydi", "dfmrve0" ], "text": [ "The system oscillator, a little chip that synchronizes the other chips, is set to run at a higher frequency than the standard that the chips are engineered for. To improve yield, most parts operate perfectly well a little above the standard frequency. The...
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[ "url" ]
62lbb3
If Microsoft has the most info on Malware/Viruses/Spyware - why is Windows Defender not the best at its job?
Technology
explainlikeimfive
{ "a_id": [ "dfnih5q" ], "text": [ "For starters, who says Microsoft has \"the most info on malware/viruses/spyware\"? Though Microsoft is able to collect more information on its products' usage than any other organization, that doesn't mean it is granted some secret knowledge about virus development that...
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[ "url" ]
62lcu2
is it possible to make an argument that my browsing history is a unique collection of destinations curated by me and therefore is my intellectual property that I create and own?
Technology
explainlikeimfive
{ "a_id": [ "dfnm4pr", "dfner9k", "dfng7me" ], "text": [ "Yeah, I don't think it would stop anything. I have been pissed off about the recent developments though and as a programmer with time on his hands I was thinking of ways I might contribute to subversion of this bullshit. I think one prong o...
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62lt23
How is open source software audited?
I regularly hear the line, "It's open source, so it's safe/more reliable/more trustworthy/etc," but I don't have the time or know-how to verify open source code myself and imagine that the vast number of users out there are like me. We're all trusting that someone out there has the time and know-how to verify open sour...
Technology
explainlikeimfive
{ "a_id": [ "dfnipv0" ], "text": [ "Unless someone independent has published a security audit of open-source software, you can't be *certain* someone's verified it to be exploit-free. This is true of closed-source software, too, mind, and in *that* case you can't verify the findings of an audit even if th...
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62miit
How do companies push updates to your phone without an actual app update?.
Some of you may have noticed the recent twitter update that no longer counts usernames towards character limit (finally) but this was done without the app updating. How does this work?
Technology
explainlikeimfive
{ "a_id": [ "dfnomm0", "dfnoocv", "dfnoz8p" ], "text": [ "the change was on the server end, not on the user end. That is why there wasn't an app update.", "I am not familiar with the twitter app, but I can imagine one or two scenarios. First, most of that limit was enforced server side, and th...
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62oki0
why do Android phone manufacturers not force carriers to use the same software like on iOS?
For example with Samsung, each carrier has their own version of the software. Would it not be more efficient to make all carriers have the exact same software and just update that like on iOS?
Technology
explainlikeimfive
{ "a_id": [ "dfo52ur" ], "text": [ "Because the manufacturers have very little power. If Samsung gives the carriers a hard time, they can immediately switch to HTC or another brand that's quite similar. By contrast, if Apple gives the carriers a hard time, there is no very similar substitute they can choo...
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62py6m
How were huge circulation daily newspapers like the New York Times prepared/printed/distributed nationwide before computers?
Technology
explainlikeimfive
{ "a_id": [ "dfofjof" ], "text": [ "Manufacturing was handled with a machine that assisted with typesetting, which did the work that computer programs do now (I will post video links for some of this below because I can't simply describe it) and webfed offset presses (these are big mechanical printing pre...
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62q85e
Why do all major virtual assistants have soothing female voices?
Alexa Siri Cortana The battery levels in my headphones
Technology
explainlikeimfive
{ "a_id": [ "dfohjsf" ], "text": [ "Because of the fact that people respond better to a female voice than a male's in most situations. Could you imagine Mr. T in your headphones? \"Fool! You're batteries bout to die! Change em' Now!\"" ], "score": [ 6 ], "text_urls": [ [] ] }
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62q8ri
How does code signing work?
and how do developers get their code signed (think for apple or ps vita) and homebrew is unsigned?
Technology
explainlikeimfive
{ "a_id": [ "dfoicao" ], "text": [ "This is a little tricky, and super cool (math-wise). If you're ready, we start by having to know one important thing about what a program ('code', or 'executable', or 'app') is, and two clever math things. Firstly, a program is a file with a particular format. Your comp...
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62r062
How is 720p content displayed on Full HD monitor?
Let say we have 100 x 100 pixel monitor. We play a 70 x 70 movie, how are color pixels distributed? If we play 50x50 movie, 1 color in that content will expand to 4 pixels in 100 x 100 monitor but 70 is an odd number to 100.
Technology
explainlikeimfive
{ "a_id": [ "dfoo1rt" ], "text": [ "The playback device employs a technique called interpolation. This normally happens even when a 50x50 movie is displayed on a 100x100 monitor as well. In the simplest form, when a new pixel needs to be made, the computer(or whatever you use) looks at the surrounding pix...
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62yo5m
How does URL_0 work, and has a petition ever succeeded making a change?
Technology
explainlikeimfive
{ "a_id": [ "dfq3mxk", "dfq3tt7", "dfq33q1", "dfq3wqw", "dfq3wnf", "dfq4b6c", "dfq41ev", "dfq3wn3", "dfq44re", "dfq3qoe", "dfq3y7x", "dfq4804", "dfq430j", "dfq4kzw", "dfq4qaw", "dfq57rx", "dfq5hwa" ], "text": [ "I mean there was a petition to...
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6308mj
How does a modern laptop have the same/more horsepower than a much chunkier games console without a built in display/trackpad/keyboard?
Staring at my laptop it's like 0.6 inches thin and has a quad core Intel i7 and a GPU that is roughly equivalent to an RX 460, which has been shown to be faster than an Xbox One/PS4 (Non Pro) in lots of cases. I know other laptops like the Razer Blade are just a bit thicker and have WAY more GPU power and still more CP...
Technology
explainlikeimfive
{ "a_id": [ "dfqayrc", "dfqb5ls" ], "text": [ "Making things smaller costs more money. Consoles are primarily designed to be cost effective. Allowing more space for cooling & components allows them to keep the costs down a bit. They also need to have oversized cooling systems to deal with the poor env...
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6312cj
Why do smartphones never seem to get viruses but computers do when people use them for pretty much the same stuff these days?
Technology
explainlikeimfive
{ "a_id": [ "dfql38s", "dfqmclx" ], "text": [ "Your PC can run any program that's on it at any time. But your Android smartphone can only run programs downloaded from the app store unless you change an option deep in settings, and your iPhone can't run programs from unknown sources at all (unless you ...
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6313ee
Why haven't USB ports been updated to allow cords to be pushed in both ways?
Technology
explainlikeimfive
{ "a_id": [ "dfqhahk", "dfqhd3x" ], "text": [ "You're in for a treat: They have. URL_0 USB-C is entirely reversible, and integrates a lot of other cool stuff, to boot.", "They have. [USB-C]( URL_0 ) connectors are reversible, so it doesn't matter which way you plug it in. (If that's what you meant...
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631h1g
Why does skipping ahead in an online video make it take so long to load?
What I don't understand is how the video can start playing the moment I load the page, but skipping forward slows it down so much?
Technology
explainlikeimfive
{ "a_id": [ "dfqlr9y" ], "text": [ "A video is serialized (the data is send to your phone/computer across the network in bits). For give the perception of seamless content, they send the portions they expect you to view first (the beginning) first. While you are viewing the video, the rest is being sent t...
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631jkp
; Why does playing video games make me feel psychically better?
Technology
explainlikeimfive
{ "a_id": [ "dfql3zb" ], "text": [ "If unwell-ness or pain is the only signal your brain is receiving, you will end up focusing on it. Gaming or any other mood-lifting activity provides a distraction for your mind so you don't focus so much on the pain. It's similar to types of painkiller that reduce the ...
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631l5p
Why is Net Neutrality so heavy on the governments agenda?
Why do they care about sites getting priority? How would ISP's even benefit from giving certain sites priority? Edit: I already asked this in a comment but what I'm trying to get at is why this is so mainstream? Charging people for priority when there are tons of sites that can't afford that seems like it would fall un...
Technology
explainlikeimfive
{ "a_id": [ "dfqnkot" ], "text": [ "Cable companies stand to make a lot of money if Net Neutrality is removed, so they naturally spend money trying to influence politicians to make it a priority. Government left on it's own probably would not be as interested in the subject. Cable companies (ISPs) don't l...
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633gj6
What computer language is artificial intelligence written in and is it enough?
Technology
explainlikeimfive
{ "a_id": [ "dfr08yp" ], "text": [ "One computer language is equivalent to another in terms of what they *can* do, but AI has historically been associated with Lisp, Prolog, Java, C, and Python. There's no reason you can't do it in whatever language you want, of course." ], "score": [ 3 ], "te...
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633nsg
How come a restaurant dishwashing machine can cycle in 3 minutes, while at home mine takes several hours?
Like literally 3 hours and the dishes aren't even that dry..
Technology
explainlikeimfive
{ "a_id": [ "dfr3l58", "dfr38bn", "dfrdqqk", "dfrszzy", "dfrhv8x", "dfriz93", "dfre6sh", "dfrfwli", "dfrcg6k", "dfrg3ax", "dfrks8i", "dfrfnyj", "dfrr1cl", "dfrf357", "dfrkqjz", "dfrjswp", "dfrglkf", "dfrj5up", "dfrnw49", "dfrmsow", "d...
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636k9g
How exactly do VPN's block internet history/usage from ISP's?
Technology
explainlikeimfive
{ "a_id": [ "dfrop74", "dfrzfzb", "dfro7g6" ], "text": [ "Imagine you live in a City with guard posts all around. When you hit the road (connect to a website), the guards (the ISP) try to see which roads you take each time you leave and watch you come and go to the neighboring cities (websites). T...
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637pei
Why do calculator and keyboard number do not match the layout of the numbers on telephones?
Technology
explainlikeimfive
{ "a_id": [ "dfrxgbe" ], "text": [ "When telephone buttons came to be, there were already 2 de facto standards established: calculators had 7, 8 and 9 on top, and classic rotary phone dials had 1 on top, and 7, 8 and 9 on the bottom. By the end of the 1950s, Bell Labs conducted a study comparing many arra...
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639cl6
What happens if I don't click "I accept" on these cookie-prompts on webpages?
Are cookies not being stored until I accept or is it all just a bunch of smoke and mirrors trying to give me the sense of control?
Technology
explainlikeimfive
{ "a_id": [ "dfsd2oa", "dfsnmf7" ], "text": [ "Nothing happens, cookies are stored the moment you load the page. These banners are only there because the eu passed a law that makes it mandatory to inform users if the site is using cookies, which every site does", "Hmmm - so I can't get my click ba...
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63a15p
what does all the info with headphones and speakers mean?
Over the years I had many people try and explain these numbers to me, but they always used a lot of technical terms that confused me. It's my understanding that it can help chose decent headphones or portable speakers, but it doesn't make any sense to me. Edit: here's a pic of what I'm meaning. URL_0
Technology
explainlikeimfive
{ "a_id": [ "dfsht8w" ], "text": [ "These terms are not easy to explain. Each one is a bit complicated and usually needs an ELI5 of its own. Power is the amount of power the little drivers in the headphones can produce. The more power they can produce, the louder the get. Voltage is another term for the i...
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63aksm
With the ubiquity of flash drives, why do so many software programs still have the floppy disk as the icon for saving a file?
Technology
explainlikeimfive
{ "a_id": [ "dfskaf6", "dfskuhx" ], "text": [ "It's an interesting design problem. There are two issues here. 1. Saving a file no longer corresponds to *any* physical device. It could be on a cloud drive, an SD card, a hard drive, an SSD, just about anything. That's hard to draw. 2. The very concept o...
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63b6ur
The "popcorn sensor" on my microwave.
Technology
explainlikeimfive
{ "a_id": [ "dfsqkic" ], "text": [ "Depends on the microwave. Some are just dumb preset timers. These are why popcorn bags all day to not use the popcorn button. Others use humidity sensors to detect the correct level of humidity (determined by the manufacturer) to figure out when it's about done and star...
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63c92f
How do mobile phones actually work? How is it that my voice is teleported to a different place within milliseconds?
Technology
explainlikeimfive
{ "a_id": [ "dfszik9" ], "text": [ "you speak into your phone. the signal processors in the phone convert your analog voice into a digital file. your phone transmits that file over to your cell tower and from there the internet takes over and transmits it to the other persons cell tower, to their phone, t...
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63cbgv
How do ZIP files work? How can you compress a certain amount of information in a smaller amount of memory, and then be able to retrieve it all back in its original form?
Technology
explainlikeimfive
{ "a_id": [ "dft09zw", "dfszvmf" ], "text": [ "Imagine a tool box or a sewing kit, any of those neat little storage devices with cubbies and drawers and little fold-out shelves. How much space do they take up? When the are stored away, they take up very little space. You open them up, and take all the...
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63edjq
Under the new rules recently passed, what information can be sold and who exactly may purchase it. Is it a giant free for all like people are making it out to be?
Technology
explainlikeimfive
{ "a_id": [ "dfts0a8", "dfu3tr8" ], "text": [ "Basically, nothing has changed. The bill passed shot down a not yet enacted rule that was going to require ISPs to get your consent before being able to sell metrics information- basically, anything that google or facebook already sells to advertisers, ot...
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63eetq
What is a DDos attack and why would anyon want to do it?
Technology
explainlikeimfive
{ "a_id": [ "dfteb6d", "dftesxr" ], "text": [ "The what and the why are in the name: Denial of Service. It's an attack which, through various means, makes it difficult or impossible to use a service (usually a network connection) and \"shut down\" a target. The how varies, but the basic concept is tha...
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63ejmt
why do you have a data link of 1gbs on your PC but you can not transfer at that speed ?
Technology
explainlikeimfive
{ "a_id": [ "dftfkem", "dftjlxi", "dfti81n" ], "text": [ "Your transfer speed can never be greater than the slowest part of the connection. If your computer has a 1Gb/s connection to your router, and your router has a 100Mb/s connection to your modem, and your modem has a 50 Mb/s connection to you...
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63erlh
Why won't a printer print out an all black document if it's low on magenta ink?
I've run into this numerous times, I'm try to print out a simple text only document and it won't print it out because my wife used up all the yellow ink. (today it happens to be magenta). My printer is completely topped off with black ink so why won't it just use the black part since that's all it needs? I can understa...
Technology
explainlikeimfive
{ "a_id": [ "dftkbqc", "dfthrl9" ], "text": [ "You have to appreciate that printing is literally a *racket*. Printers are designed specifically to cost you money. How? * Nearly all retail models from all brands are hard coded in their firmware to print a maximum number of documents before it self term...
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63ffej
Pornhub and YouPorn have both pledged to use encryption to block ISP's from using your traffic on those sites. How is this effective?
For instance, if I go to URL_0 , how does Pornhub encrypting that video prevent my ISP from knowing that I went there? Couldn't they just look up URL_0 and know what I watched?
Technology
explainlikeimfive
{ "a_id": [ "dftr8pm", "dftn429", "dfuqzgi" ], "text": [ "When you go to a website, your computer first asks your DNS server (likely ran by your ISP) to translate the domain name into an IP address, eg URL_0 to 31.192.120.36. Your computer then connects to the server at that IP address, and asks t...
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63fgof
How does a computer know how long 1 sec is?
Do they perform a series of calculations that take exactly 1s? Or am i looking at it completely wrong?
Technology
explainlikeimfive
{ "a_id": [ "dfu2wn6", "dftntia", "dftnnlr" ], "text": [ "Computer Engineer here, Timekeeping on computers (indeed, most electronic devices) is performed using two methods. 1.) A small quartz crystal that, when energised, oscillates at exactly 32,768 hz, is fed through an amplifier and bistable os...
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63gj5k
Why do turn signals always flash at different rates?
Technology
explainlikeimfive
{ "a_id": [ "dftwgr0", "dfu8xur" ], "text": [ "Turn signals are controlled by relays which is an electromagnetic switch. What is that click click sound you hear when your signals are on? Well it's not an intentional audio signal it's the relay switching your lights on and off. If the relay is broken t...
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63gjl3
How can you tell a website or password manager is secure and not just storing your passwords to potentially be used against you?
Technology
explainlikeimfive
{ "a_id": [ "dftwviu", "dftx2kc", "dfu03zh" ], "text": [ "One can generally rely on the reputation of well known companies to be acting in good faith, but you can never really trust they won't make a mistake that exposes your passwords and other credentials. I use a software based password manager...
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63gzz1
How are developers able to make changes to a video game already hard coded? Why can't they? Video games sometimes get minor interface changes but never new worlds/etc?
Technology
explainlikeimfive
{ "a_id": [ "dfu1ylf" ], "text": [ "All updates are stored on the internal hard River, regardless of whether you bought a digital version or a cd. If your are that cd to another Xbox you'll have to renown load all the updates over again because the content on the cd cannot ever be changed. As for why Devs...
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63hkxw
How do open world games achieve that feeling of grand scale while being small enough to be playable?
Most open world game maps can generally be traversed edge-to-edge in under an hour. Meanwhile, top runners can finish only a half marathon in that sort of time. Yet the best open world games still *feel* huge - how? Is there some sort of funny perspective trick at play?
Technology
explainlikeimfive
{ "a_id": [ "dfu6wry" ], "text": [ "\"You see those mountains in the distance? You can go to them.\" -Skyrim" ], "score": [ 3 ], "text_urls": [ [] ] }
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63ke2o
Why is 16:9 the most common aspect ratio?
Technology
explainlikeimfive
{ "a_id": [ "dfut2al" ], "text": [ "When they were developing the HDTV standards, they wanted something wider than the 4:3 of the older standard. 16:9 was chosen because it was a reasonable compromise that would allow most films (which came in a wide variety of aspect ratios) to fit on the screen without ...
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63klkx
What are Differential GPS (DGPS) and RTK (Real Time Kinematics) and what are their differences to regular GPS?
Technology
explainlikeimfive
{ "a_id": [ "dfvaujb" ], "text": [ "Regulation GPS detects your location by determining your distance from the known position of gps satellites. Differential GPS also uses stationery reference points with known exact positions and your distance to those as well. As a result it can increase the accuracy of...
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63kot5
How does Whatsapp's End-To-End-Encryption work, and how do we know that it really is ecrypted all the way through?
Technology
explainlikeimfive
{ "a_id": [ "dfvfskg" ], "text": [ "Whatsapp uses a modified form of the signal protocol - URL_0 The signal protocol is open source and has been scrutinized by crypto experts all over the world. It's probably pretty damn tight. You can check it out yourself if you like. URL_1 Could whatsapp have built in ...
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63kv0c
why have 'google' and 'photoshop' become verbs, but 'amazon' or 'wikipedia' haven't?
Technology
explainlikeimfive
{ "a_id": [ "dfuvqfj", "dfuwkrt" ], "text": [ "Not sure the reasoning, but I've definitely heard/used \"wiki\" as a verb. \"I'm gonna wiki that to see if it's true\"", "Both google and photoshop created entire new categories of behavior that needed verbalizing. Amazon is a store and wikipedia is a...
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63lkdk
How can a completely deactivated phone with no wifi connection still call 911?
Technology
explainlikeimfive
{ "a_id": [ "dfv0wpa", "dfv6jjv", "dfv0ugv", "dfvh6ot", "dfvgkbt" ], "text": [ "911 gets special consideration by the carriers due to FCC regulations. This means a couple of unique things for 911 calls. First, even if the phone does not have a service plan attached to it, it can still call...
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63mf7b
How can someone use bots to do things repeatedly on a website that would normally be limited to one action per user account, like voting in a poll?
Does the bot create thousands of fake accounts? Circumvent the one-action-per-account limitation? If so, how? I'm looking for a conceptual, ELI5-style explanation, not actual code. Thanks.
Technology
explainlikeimfive
{ "a_id": [ "dfv8gjy" ], "text": [ "Depends on the level of security implemented. If a site limits things to one action per session using php sessions or cookies to track this, it's not hard to clear cookies or reset a php session. If it's once per account, then the bot will attempt to create an account, ...
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63n92l
Why do 15/20 year old videos look so bad when they looked good even on big TVs back then?
Edit for clarity: I understand that we had nothing better to compare it to, but old videos didn't seem like they had all the noise/artefacts that they do when we see them now.
Technology
explainlikeimfive
{ "a_id": [ "dfvflg6", "dfvo49n" ], "text": [ "They only looked good because you never had something better to compare it too. It's like when the PS1 came out, everyone thought it was hightech and super cool, but now compared to the PS4 graphics, they look terrible. The old vhs tapes which were high t...
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63n99l
How were the graphics in Donkey Kong Country so much more impressive than the graphics in most other SNES games (like Super Mario World)?
Technology
explainlikeimfive
{ "a_id": [ "dfvgl4b", "dfwcyow", "dfwp57t" ], "text": [ "It used pre-rendered graphics. Basically they built the characters and levels in a high resolution in 3D. Then they coverted the 3D animations to 2D. They're just flat pictures of the character, not the actual model. So they were able to ca...
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63nghl
Ethereum
Technology
explainlikeimfive
{ "a_id": [ "dfvkj0h", "dfvxxx4", "dfvm0pt", "dfvurmw", "dfvjqaw", "dfvsg98", "dfw5cbg", "dfw18ea", "dfvj3ib", "dfvx2td", "dfvtexb", "dfwashi" ], "text": [ "To start, you need to know what a blockchain is. Basically, it is a ledger, a record of transactions. Nor...
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63nhpq
Why are Texas Instruments calculators the most widely used and recommended calculators in a school/University setting?
Technology
explainlikeimfive
{ "a_id": [ "dfvhyks", "dfvltrp", "dfvla2a" ], "text": [ "Because most people know how to use them. If every student has a different graphing calculator, the teacher and/or students have to figure out how to use each one. If the whole class has identical calculators, the teacher can instruct the w...
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63np43
How do people get good at flying in wingsuits? Where/how do they practice?
Technology
explainlikeimfive
{ "a_id": [ "dfvko15", "dfvkaye" ], "text": [ "Before learning to wingsuit all those people were already very experienced skydivers and BASE jumpers, so they already have a high level of skill in a sport that requires jumping off something and surviving with a parachute. They also have a trained aware...
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63o0ey
What are the major differences between US Cell Phone Carriers? Why are some able to market at a significantly lower cost for a seemingly similar product?
I'm wondering what the differences between the US Cellular carriers are, such as AT & T, TMobile, Verizon, Sprint, Metro PCS, Boost, Cricket, Simple, etc. I'm sure you've seen the commercials where Sprint is marketing their plans at lower prices with comparable service to Verizon. How can these carriers do this?
Technology
explainlikeimfive
{ "a_id": [ "dfvrifr", "dfvqsk0" ], "text": [ "As larger companies get more established, costs per customer go down. If I opened up a brand new mobile service and tried to put towers up all across the country it would cost me billions of dollars, and if I only had a few customers I would have to charg...
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63o5z8
I recently made a purchase off the Amazon app then exited the app. Later I went on to Instagram to post something but noticed on my newsfeed about Amazon deals of exactly what I just purchased. How do ads work like that?
I have one email specifically for Amazon and a different email for social media. How do ads correlate with the apps I use when I have different emails for different things?
Technology
explainlikeimfive
{ "a_id": [ "dfvnrno" ], "text": [ "When you access Amazon and look around at different things it keeps records of that on the Amazon servers. It also saves a cookie to your device. These are short files that give identifiable information about your amazon account that when an amazon ad is being generated...
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