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5p3w46
What are the pros/cons between putting a video game on a cartridge vs a disc?
The release of the Switch has me curious
Technology
explainlikeimfive
{ "a_id": [ "dco6jjc" ], "text": [ "Optical media has long held an advantage for stationary consoles because it is dirt cheap and holds a lot of data. However, it is not practical for mobile devices (moving parts) and suffers from long loading times. Solid state media, like cartridges, is more expensive t...
[ "url" ]
[ "url" ]
5p419h
Why do internet data caps exist?
Technology
explainlikeimfive
{ "a_id": [ "dco6x95" ], "text": [ "In the case of both wired and wireless connections (cable and cell towers), it's a tactic by the internet provider to try and slow the growth of bandwidth use. People using more bandwidth means they need to spend a lot of money upgrading their back end infrastructure to...
[ "url" ]
[ "url" ]
5p4j04
Why do gas stations hide my debit card pin for security, yet leave my credit card zip code visible?
If it's a security measure, why would they not obscure the zip code? This has never, ever made sense to me.
Technology
explainlikeimfive
{ "a_id": [ "dcoaviy" ], "text": [ "> This has never, ever made sense to me. How about why do they even ask for the zip code if losing your credit card often would involve also losing your driver's license that has your home zip code on it anyway? The reason is that asking for the zip code makes it more d...
[ "url" ]
[ "url" ]
5p540m
How does your phone know where you are tapping the screen through a plastic/glass screen protector?
Technology
explainlikeimfive
{ "a_id": [ "dcog6qr" ], "text": [ "Phones use something called \"capacitance\" to detect contact. Basically, your phone has a weak electrical current running through the screen. When something conductive gets close to the screen (doesn't actually have to make physical contact), some of the current travel...
[ "url" ]
[ "url" ]
5p70z8
Why can't computers/operating systems detect when they are about to "freeze"?
Technology
explainlikeimfive
{ "a_id": [ "dcow27h", "dcowxml" ], "text": [ "You could easily set up something that alerts you if the memory capacity reaches a certain point. However, just halting it early if it *might* freeze would be even more ineffective and would be basically the same thing as just freezing early. Most times w...
[ "url" ]
[ "url" ]
5p8f61
How do calculators work?
Technology
explainlikeimfive
{ "a_id": [ "dcpe7br", "dcpatyr" ], "text": [ "Well im pretty drunk, friday and all, so ill just cover addition. you'd have to understand a lot of computer architecture to understand the full... thinggg. we first have to cover XOR, it's pretty easy. XOR is a bit operation thats used for addition and i...
[ "url" ]
[ "url" ]
5pau4l
is it really true that 10 strategic atomic bombs could wipe out the human life on earth?
it's something someone told me when I was younger. But when I've used the nuke map to compare sizes of nukes compared to cities I can't seriously believe that 10 nukes, even really big would be able to take out whole human lifef on earth. How many nukes would really be needed?
Technology
explainlikeimfive
{ "a_id": [ "dcqcxgs", "dcpqrdb", "dcpppf5", "dcpq5w6", "dcpprc4", "dcrb2a1" ], "text": [ "Well, I know this is going to get buried but I'll answer as best I am able. One of the side effects is actually forest fires. I read a paper a while back that if Pakistan launched all their nukes...
[ "url" ]
[ "url" ]
5pbcnj
How exactly does Morse Code work and how was it developed?
Technology
explainlikeimfive
{ "a_id": [ "dcpuqtf" ], "text": [ "It was developed at a time where we could not transmit speech yet. A simple \"current on or off\" is easier to transmit. But how do you convert messages into \"on/off\" patterns? You invent a pattern for every letter. The sender sends them via pressing a key, and the re...
[ "url" ]
[ "url" ]
5pbdex
Why can't/won't we use SVG's for textures in PC games?
Technology
explainlikeimfive
{ "a_id": [ "dcpvks4" ], "text": [ "When a graphics card is trying to determine what color a screen pixel should be, it finds out what shader is represented there. To find a base color (barring the extra processing), it can quickly figure out a grid location associated to the relative location on the poly...
[ "url" ]
[ "url" ]
5pblm4
Why do so many people stress protecting yourself on public wifi but no one says anything about mobile data towers shared by everyone?
Technology
explainlikeimfive
{ "a_id": [ "dcpw2gv", "dcpx2i6" ], "text": [ "Your phone is not designed to pick up other phone's traffic normally. While you could hack a device to do this it os not that easy by any means. On the other hand, wi-fi devices listen to all packets transmitted over their wi-fi connection but only proces...
[ "url" ]
[ "url" ]
5pcx8d
How are we so sure that all the wireless communication is not harmful to us?
Living next to a pretty massive TV-tower I am wondering if and why we know that all this radiation from cellphones, wifi networks, radio stations and tv-networks is not harmful to us. Obviously it would be very long term harm but that makes it even harder to prove, doesn't it?
Technology
explainlikeimfive
{ "a_id": [ "dcq70k8", "dcq70v3", "dcq7bip", "dcq8ese", "dcq8fsu" ], "text": [ "There are lots of different of kinds of radiation. There's alpha, beta, gamma, cosmic, all that, but the kind you're talking about is *electromagnetic* radiation - physically speaking, the same stuff as visible...
[ "url" ]
[ "url" ]
5pdecr
Why we get shocked when we lick the top of a 9v Battery
Growing up, my mom told me to lick the top of a 9v to check and see if it had any charge left. Whilst that does work, it's a cruel joke to play on a 7 year old lol, but how does it work?
Technology
explainlikeimfive
{ "a_id": [ "dcqak7u", "dcqdki4" ], "text": [ "It works because you're completing the circuit, allowing electrons to pass from the positive terminal, through your tongue, to the negative terminal. As far as it being cruel, I've stuck my tongue to a fair share of 9v batts in my time and never felt anyt...
[ "url" ]
[ "url" ]
5pfupl
What is net neutrality?
Technology
explainlikeimfive
{ "a_id": [ "dcr2jm5", "dcqvqd9" ], "text": [ "***All data is equal, and no data on the internet shall be treated differently than other data regardless of content, origin or intended purpose.*** Basically your ISP cannot artificially cut off or slow down your connection to Youtube because they want y...
[ "url" ]
[ "url" ]
5pgfaf
What is the difference between http and https?
Technology
explainlikeimfive
{ "a_id": [ "dcr0cer", "dcr0nkx" ], "text": [ "The S in httpS stands for \"secure\". What this means is basically two things - encryption and authentication. Encryption simply means that the data send between your computer and the server is encrypted. Anyone intercepting this communication should be u...
[ "url" ]
[ "url" ]
5pgfpl
Why is white a brighter color?
This question came to mind because sometimes at night I will put a white page on my second monitor to create a sort of 'lamp.' I understand that white is a lighter color than black or blue, but why is it brighter, especially when on a computer/phone/tv screen?
Technology
explainlikeimfive
{ "a_id": [ "dcr0def" ], "text": [ "White is a combination of all the colors of the visible spectrum. In screens, all colors are mixed using red, green and blue subpixels. So to get white, you have to turn on all three at the same intensity. Thus you get three times as much light as you would for a solid ...
[ "url" ]
[ "url" ]
5pgkzc
Why does a kettle boil water so much faster than a pan on the hob?
Technology
explainlikeimfive
{ "a_id": [ "dcr1ew4" ], "text": [ "A kettle is designed to pump as close to 100% of the heat energy as possible into the water. The heating element is submerged, often surrounded on all sides by water. Whereas on a stove, the gas is heating the bottom of a pan, but a lot of the heat flows up, around the ...
[ "url" ]
[ "url" ]
5phy6d
Technicolor
How does it work and how does it affect the visuals of a product when compared to other types of effects?
Technology
explainlikeimfive
{ "a_id": [ "dcrgb7f", "dcrhf2o", "dcrba6i" ], "text": [ "Technicolor is a brand name, so it refers so the company, its photo lab processing services, and several different processing technologies over the years, some of which are obsolete. The most significant today is their positive print proces...
[ "url" ]
[ "url" ]
5pk6t6
What is a PGP fingerprint and why are reporters putting it in their twitter bio?
Technology
explainlikeimfive
{ "a_id": [ "dcrxwto", "dcrr3jd", "dcrrc5r" ], "text": [ "PGP is a form of \"public key\" cryptography, which lets people talk to the reporter without anyone listening in. Suppose I'm a government worker who wants to talk to a reporter about something horrible our government is doing. I have two p...
[ "url" ]
[ "url" ]
5plv2h
Why can a coaxial cable carry hundreds of HD TV channels but a PC display cable can barely handle high resolutions?
Technology
explainlikeimfive
{ "a_id": [ "dcs69hc", "dcs61bd" ], "text": [ "Your DisplayPort cable actually has more total bandwidth, as much as 17 GHz. The difference is that this data is sent relatively *uncompressed,* that is, close to every pixel of every frame is transmitted. By contrast, cable TV is sent highly compressed, ...
[ "url" ]
[ "url" ]
5pm1ij
How does my Amazon Alexa not react when a commercial for it comes on?
Technology
explainlikeimfive
{ "a_id": [ "dcsbk54" ], "text": [ "I haven't seen an Alexa commercial honestly, but mine does react to my television sometimes. Since the voice recognition is really done on Amazon's servers, not in the device itself, they could have code to filter out audio clips from their own commercials." ], "sco...
[ "url" ]
[ "url" ]
5pm4ad
If Linux can't detect SD cards/eMMC at boot, then how do SBCs like the Raspberry Pi boot off them?
Technology
explainlikeimfive
{ "a_id": [ "dcs7b0t", "dcs92fb" ], "text": [ "The booting process happens long before Linux does anything (in fact, the booting process is what *starts* Linux). The thing that actually does the booting in a computer is something called the \"boot loader,\" and its sole job is to find an operating sys...
[ "url" ]
[ "url" ]
5pm91w
Why is it that video games have loading screens after deaths?
Okay, so I accept the need for loading screens in general. I don't get, however, why they're necessary after you **die**. It seems to me that if you have a save in the room/area you're fighting in when you die, the area should already be loaded (because you were JUST standing there) and all the computer has to do is re...
Technology
explainlikeimfive
{ "a_id": [ "dcs89g2" ], "text": [ "Resetting just the things that changed back to their proper state can be harder than you think. The laziest way to program it is to just pretend you're loading the game for the first time, and re-initialize everything. It's inefficient, but effective." ], "score": [...
[ "url" ]
[ "url" ]
5pnxde
Why do all remote controls have squishy rubber buttons instead of proper hard keys like a keyboard?
Technology
explainlikeimfive
{ "a_id": [ "dcsjece", "dcsipz6", "dct7s64", "dcsit44", "dcssf7z", "dcstk1e", "dcszx0d", "dcsxkyn" ], "text": [ "While hard keys like keyboard keys get produced one by one, the rubber keys of remote controlls are all made in one step. those rubber buttons are on one big pad per...
[ "url" ]
[ "url" ]
5po977
Skyrim got a revamped version. It is the same game but with better graphics. One of the new features is the 64 bit engine. What did the programmers have to do? Rewrite the whole game? What is the difference between 32 bit and 64 bit from that perspective?
Technology
explainlikeimfive
{ "a_id": [ "dcsl6b4", "dcsy10g", "dcsph5f" ], "text": [ "Answering one bit at a time: > What is the difference between 32 bit and 64 bit - When your CPU runs in 64-bit mode, it gains access to a number of new instructions, which, taken together, may allow certain computations to be performed more...
[ "url" ]
[ "url" ]
5pokog
How did MS-DOS make Microsoft an OS power house?
Technology
explainlikeimfive
{ "a_id": [ "dcsnkf4", "dcsrnf4", "dcsmurj" ], "text": [ "I'll have to leave most of your questions to others, but here's the answer to your first one: Microsoft's deal with IBM (to create/supply the operating system for the brand new IBM PC) allowed Microsoft to license the operating system to ot...
[ "url" ]
[ "url" ]
5ppu0b
How can game key aglorithms be simultaneously strict enough that they can't be guessed and vague enough that millions of games can generate millions of single-use keys?
And how do the people designing these algorithms can be sure that their key generator won't accidentally create a key for another existing game?
Technology
explainlikeimfive
{ "a_id": [ "dcsx1yg" ], "text": [ "Assuming you have a 16 digit alphanumeric code (A-Z, 0-9), you have 36^16 or 7.96 x 10^24 different combinations. 7.96 x 10^24 combinations is roughly 8 *heptillion*, 8 million million million, unique keys. The chances of getting the same key twice, for any two given ga...
[ "url" ]
[ "url" ]
5prhe8
How does Facebook change its mobile layout and colors without having me update it on the App Store/play store?
Technology
explainlikeimfive
{ "a_id": [ "dctafja", "dcta2et" ], "text": [ "A bunch of the stuff you see in the FB app is done not with compiled native (Java/Swift) code but with HTML and Javascript. These assets can be downloaded and updated without changing the compiled app and thus don't require a new version in the Play/App S...
[ "url" ]
[ "url" ]
5prtil
Why do games need to restart in order to change certain graphics settings (e.g. resolution) but not certain other ones (shadows, etc.)?
Technology
explainlikeimfive
{ "a_id": [ "dctb8xi", "dctg473" ], "text": [ "Think of the software like a building. When you construct it, certain specifications (settings) need to be determined as the foundation of the building. If any of these specifications need to be changed, you may have to tear down the building and make a n...
[ "url" ]
[ "url" ]
5psjrs
When you press the unlock button on your keys, how does it only work on your car?
I'm guessing it unlocks it with a frequency value, but there must be something more?
Technology
explainlikeimfive
{ "a_id": [ "dctgzu7" ], "text": [ "> I'm guessing it unlocks it with a frequency value, but there must be something more? It's not just something more. It's everything more. There is no \"secret frequency\" that's used. Instead, the keyfob and car both have electronic circuits that create psuedo-random n...
[ "url" ]
[ "url" ]
5psv8d
How do they produce TV shows so much faster than movies?
It seems they take so much longer to make a entire movie compared to one episode, but think of how long a TV show runtime is for an entire season. How do they do it so much faster?
Technology
explainlikeimfive
{ "a_id": [ "dctjvey" ], "text": [ "I believe I can give some reasons * Fewer and more basic special effects. A Hollywood blockbuster can take months on end just creating all the CGI even using countless Indian thralls and huge render farms. * Everything is on a tight predetermined schedule so actors know...
[ "url" ]
[ "url" ]
5ptdmg
What is the purpose of the turnable dial around the face of a watch?
Technology
explainlikeimfive
{ "a_id": [ "dctos3f", "dctos4r", "dctuy47", "dctoubi" ], "text": [ "The ring as we know it today on some watches, also called rotating bezel, actually dates to the first diving watches of the 1950's. At the time, using a stopwatch was impossible, because every additional pusher could further ...
[ "url" ]
[ "url" ]
5ptfy7
How does Google Maps and other GPS calculate my estimated time of arrival?
I understand that Google has massive amounts of data available to them to calculate arrival time, but what do they use, exactly? For example, do they estimate as if you are going to drive the speed limit the entire drive or do they use the current data at hand and estimate that you will be driving the average speed of ...
Technology
explainlikeimfive
{ "a_id": [ "dctrfj0" ], "text": [ "It utilizes the phone signal from each device passing by the nearest towers and triangulates them to the closest ride. It it notices there are a lot of connected devices and none are connecting to the next tower then it will assume a traffic jam and average out the time...
[ "url" ]
[ "url" ]
5ptmgo
Why are some redirecting urls like URL_0 just as long as the origanal urls?
Technology
explainlikeimfive
{ "a_id": [ "dctrcvl" ], "text": [ "A YouTube video ID is always 11 characters. Anything appended to the end is likely a marker pointing to a specific time (\"?t=75\" directs you to 75 second), an indication that the video is included in some playlist, or some other instructions like video size or window ...
[ "url" ]
[ "url" ]
5pto1o
Why did each (manned) Apollo Mission have a different crew?
I'm doing research for a paper on the Space Race during the Cold War, and part of that has been researching the Apollo Missions. I noticed that each of the manned Apollo Missions had a different crew on board. For instance Apollo 10 was basically a full test for the moon landing that would occur with Apollo 11, but wit...
Technology
explainlikeimfive
{ "a_id": [ "dctrl5d" ], "text": [ "Good question... They had different goals/objectives on each mission. Everyone in that program got \"a piece of the pie\" and had to study the shit out of it/make it happen. Also, just sort of FYI, the crews did rotate (some people flew mutliple times). For example, Mik...
[ "url" ]
[ "url" ]
5ptpyf
how do computers tell time?
Technology
explainlikeimfive
{ "a_id": [ "dctxr28", "dctrk6r" ], "text": [ "There are three main engineering challenges to digital time-telling: - (A) Create a circuit that uses some sort of natural physical phenomenon to track the passage of time. - (B) Maintain accurate time when power is removed from the circuit. - (C) Keep th...
[ "url" ]
[ "url" ]
5ptrdc
what's the difference between triple A games and other types of games?
Technology
explainlikeimfive
{ "a_id": [ "dctrzl3" ], "text": [ "It's not a purely technical definition - the definition will vary from person to person and from context. Generally a triple A game is one that receives a large amount funding, normally from a major publisher, which is often visible in the number and quality of assets i...
[ "url" ]
[ "url" ]
5pv8j8
How do fishermen on those large trawlers with nets catch the exact fish they are looking for?
Technology
explainlikeimfive
{ "a_id": [ "dcu3me2" ], "text": [ "The fishing spots are not randomly chosen. They are chosen because there is a lot of the desired fish there. Different fish will have specialized themselves to feed on different food, swim at different depths and handle different ocean conditions. So if you go to the pl...
[ "url" ]
[ "url" ]
5pwxbq
Why is quartz so useful in making watches?
Technology
explainlikeimfive
{ "a_id": [ "dcug21r", "dcugam3" ], "text": [ "Quartz vibrates when an electric current is passed through it. The watch counts the vibrations and uses it to accurately count seconds.", "If you put an electric signal into a quartz crystal, it resonates in a very dependable way. Quartz watches conta...
[ "url" ]
[ "url" ]
5px40z
There are a surprising amount of people who believe any moon landings were a hoax. Why can't we use telescopes/powerful cameras to prove there was activity on the moon?
Are there no traces of the landings (flag, residual space ship parts, any other debris) that are visible using a high powered camera or telescope? I know even consumer-grade cameras are getting to be pretty good at taking high res photos from very far. I'm not saying that it is necessary to provide MORE evidence of a m...
Technology
explainlikeimfive
{ "a_id": [ "dcuhq74", "dcuksri", "dcuhcgm", "dcuhag7", "dcuvx40" ], "text": [ "The Lunar Rconnaissance Orbiter took pictures of one of the [Apollo landing sites]( URL_0 ). But to a conspiracy theorist, any contrary evidence is part of the conspiracy.", "The lunar landers are so small ...
[ "url" ]
[ "url" ]
5px7np
What is Net Neutrality and why is there a lot of controversy surrounding it?
Technology
explainlikeimfive
{ "a_id": [ "dcuuy6j", "dcukjk4", "dcuibsa", "dcuytdn", "dcumw6h" ], "text": [ "Say I run a factory building steel folding chairs. I have my steel imported by rail, on the one rail line that accesses my town. Now, railroads are expensive to lay down, and the ones we have were all built a w...
[ "url" ]
[ "url" ]
5pxfou
Why can't touchscreens recognize a touch while a finger is being held on it in another location?
My toddler plays a learning game on my touchscreen phone but he doesn't understand that when he holds the phone (with this thumb touching the screen) he can't touch anything else on the screen. I cannot get him to move his thumb because otherwise he will not be able to hold onto the phone.
Technology
explainlikeimfive
{ "a_id": [ "dcukbg1" ], "text": [ "It's not that the touch screen can't recognize the touch, it's that it doesn't know which one to pay attention to. It doesn't want to randomly click things if you grab the phone with your whole hand or if you touch something on the side of the screen with the hand holdi...
[ "url" ]
[ "url" ]
5pxjv4
Why is it that a 10 minute 720p video I record with my phone is 700mb, yet a 720p 1.5 hour long movie uses less data?
Thank you everyone for your answers.
Technology
explainlikeimfive
{ "a_id": [ "dcul68h" ], "text": [ "Before movies are distributed, the data gets carefully compressed on full-sized computers that may have spent many minutes or even hours compressing it, after the recording was complete. The result is better compression, hence a smaller total file size." ], "score":...
[ "url" ]
[ "url" ]
5pxwa5
How does an air fryer work?
Technology
explainlikeimfive
{ "a_id": [ "dcuoe21" ], "text": [ "It's just a self contained convection oven. It uses fans to circulate the hot air so that it cooks things very evenly. Most ovens are not convection. They have heating elements that heat up the food but might not always do it evenly. A convection oven has a fan in it th...
[ "url" ]
[ "url" ]
5py3mv
In the age of computers, why do traffic cops take ages to write a traffic ticket by hand? Why not have the system that scans your drivers license and creates a ticket for the next available court date?
Technology
explainlikeimfive
{ "a_id": [ "dcuqhzf", "dcuqlrz" ], "text": [ "Actually, there are some agencies that do just that; however, the underlying need for all of the relevant computer systems to be inter-connected does not exist everywhere.", "Some do, I know from personal experience the California Highway Patrol has a...
[ "url" ]
[ "url" ]
5pz30y
How is this light effect created in 90s cartoon animation?
Technology
explainlikeimfive
{ "a_id": [ "dcuzqwt" ], "text": [ "Its called backlit animation. Instead of the cells just being photographed on a table or whatever, it sits on a backlit lightbox that shine the light through translucent paint." ], "score": [ 23 ], "text_urls": [ [] ] }
[ "url" ]
[ "url" ]
5q1xt1
How does a hacker get caught? Couldn't they just go buy a $200 laptop, install their hacking tools from a cd or thumb drive, and then take it to a public wifi place (library, Starbucks, etc)? Then burn their stolen hacking data to a CD when they get home?
Technology
explainlikeimfive
{ "a_id": [ "dcvnl6j", "dcvoh42", "dcvnogi", "dcvoc1v", "dcvszg1", "dcw0qa8" ], "text": [ "First of all hacking takes time, you can't just sit in Starbucks all day. Also wifi isn't usually very fast in public places, it's inefficient.", "Surprisingly, most hackers don't operate lik...
[ "url" ]
[ "url" ]
5q27qs
Why do cars have two controls for parking?
I'm referring to the gearstick park and the parking brake (or hand brake). Would it not have been possible to incorporate both into a single control?
Technology
explainlikeimfive
{ "a_id": [ "dcvpjh7", "dcvq2sf", "dcvq9j4", "dcvz5rh" ], "text": [ "They're two different mechanisms. The parking brake is connected directly to the wheels, holding them in place. The gear shift locks the transmission, which is a part of the engine. There are electronic parking brakes which e...
[ "url" ]
[ "url" ]
5q2uto
How do random number generators work on the most fundamental levels in programming or otherwise?
I was trying to think how I would come up with it but couldn't find anything that was very clean or efficient. Thanks for reading
Technology
explainlikeimfive
{ "a_id": [ "dcvwftv", "dcw1k8f" ], "text": [ "Without an additional hardware device, called a \"true random number generator\" (TRNG), there simply is no real random, but we use pseudo randomness. To clarify that, what does \"random\" actually mean? Simplified, randomness means the fact of having a s...
[ "url" ]
[ "url" ]
5q3z6w
What exactly will an Exascale supercomputer be used for, and how will it benefit humanity?
Technology
explainlikeimfive
{ "a_id": [ "dcw5kr5" ], "text": [ "Ever wonder why a video game has to simulate unit stats instead of working out the physics of swords hitting shields? Simulating each particle requires a TON of computing power. Engineering software is the same way. We can model parts of systems with particular material...
[ "url" ]
[ "url" ]
5q6x4m
How To Get Reliable Internet
Technology
explainlikeimfive
{ "a_id": [ "dcwswum" ], "text": [ "You want to get a second opinon from another internet provider. It's possible your current provider may not have good service in your area" ], "score": [ 3 ], "text_urls": [ [] ] }
[ "url" ]
[ "url" ]
5q7i9b
Where does an electron "go" once it enters a piece of electronics? Whathappens to it?
Technology
explainlikeimfive
{ "a_id": [ "dcx0tsx", "dcwy1mt" ], "text": [ "They don't really 'go' very far. In DC currents, it can take hours for an actual single electron to travel an inch. In AC currents, they just oscillate back and forth - not travelling anywhere. Electricity - as what we commonly think about - is really an ...
[ "url" ]
[ "url" ]
5q8eqo
Why do Apple consumers stay devoted to Apple products and have a hard time switching to anything else?
Technology
explainlikeimfive
{ "a_id": [ "dcx6psg", "dcx717p" ], "text": [ "I've only had an automatic red gasoline car my whole life and I know everything about it. Now I have a manual blue disel truck and know very little about it. Most of the same things can be done like getting from Point A to Point B but it is all different....
[ "url" ]
[ "url" ]
5q8io0
How does Twitter censorship work? And how are governments involved?
Technology
explainlikeimfive
{ "a_id": [ "dcxdrzj" ], "text": [ "Judging by Wikipedia, Twitter has the ability to limit messages based on geographic region. And apparently has a mechanism by which Twitter can be asked to hide messages. Basically, if Twitter gets a legal order telling Twitter to hide things, they can comply. How the g...
[ "url" ]
[ "url" ]
5q8t1n
each time a new wireless standard comes out, it seems better and faster than before. Any reason we couldn't have accomplished this sooner? What are the enablers we now have that we didn't have before?
I'm asking because I happened to be reading about Bluetooth 5. This is also applicable to wifi etc. Did we discover new encoding / compression algorithms or what?
Technology
explainlikeimfive
{ "a_id": [ "dcxbrbc", "dcxg45q", "dcxgpe1" ], "text": [ "Every engineering problem comes down to a trade-off between cost and capability. A wireless standard is limited by what the cost effective electronics of the day can accomplish. As time goes on, processing power gets cheaper, so you can do ...
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[ "url" ]
5qapjx
How do ad blockers work?
How do they differentiate between native content and ads? Edit: also how do ad blocker blockers work?
Technology
explainlikeimfive
{ "a_id": [ "dcxnubu", "dcxtd58" ], "text": [ "> How do they differentiate between native content and ads? Ads are hosted from a different address than the native content. An ad will be an area of the page blocked out for \"whatever the ad server wants to put there\" so the creator of the site really ...
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[ "url" ]
5qe0zg
why is it that people use underscore "_" instead of "-" when programming
On the internet (URL's) you rarely see the "-" while in programming languages i've never seen them, why is that?
Technology
explainlikeimfive
{ "a_id": [ "dcyh0zm", "dcyiqnv", "dcyhrgk", "dcyijzr" ], "text": [ "In many languages \"-\" means \"minus\" which means it breaks things when you just use it as a separator.", "\"my-variable\" is \"subtract 'variable' from 'my' \" (in many programming languages) \"my variable\" is often a...
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5qe3xy
How does chat applications knows when the other person is typing before sending the message?
Technology
explainlikeimfive
{ "a_id": [ "dcyiyuo", "dcyp7oe" ], "text": [ "Easy, once you type at least 1 character, the program detects that and sends that info to whomever the conversation is with, it's super simple.", "There is a tiny bird inside your phone. When you start typing, it flies over to the other phone real fas...
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5qg4ol
If web browsers treat Javascript consistently, why can't they do the same with CSS?
Technology
explainlikeimfive
{ "a_id": [ "dcz1imd", "dcz7m05" ], "text": [ "Browsers **don't** treat Javascript consistently. They're better than they used to be but they all have little quirks. Why? Because JS & CSS are complex specifications and nobody does it perfectly & nobody implements 100% of it.", "Browsers don't trea...
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5qg97v
How is that my cable box can record up to 4 HD TV shows at once whilst playing 5th one directly but my internet, provided with a package cannot cope to smoothly stream HD anything
Technology
explainlikeimfive
{ "a_id": [ "dcz023j", "dczakfs", "dcz570m" ], "text": [ "Because you get way more bandwidth on a TV cable. The reason for this is because they only have to send out each channel once. So if there are 400 channels, the cable TV provider just sends out 400 channels of content which people who are s...
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5qgq1c
What does "/16 or /24" after an IP Address mean?
Hello all - I have seen the /16, /24, etc multiple times after an IP Address and I just don't understand it! How do I know which number after the slash belongs to my home network? Any help/guidance an explaining this would be very much appreciate! Thanks in advance! EDIT 1: Thank you everyone who replied and for not ma...
Technology
explainlikeimfive
{ "a_id": [ "dcz2vfh" ], "text": [ "It is a decimal representation of your subnet mask. Your computer has an IP address. Something like: 10.1.1.2 But this address represents two things: a) your computer; and b) the local network your computer is on. And it needs a way of knowing which part is which.^* To ...
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5qh9y4
How do transportation apps like Moovit or Navigation in Google Maps know exactly when buses are arriving late, where exactly are they, at what time will they serve, etc?
Technology
explainlikeimfive
{ "a_id": [ "dcz868h" ], "text": [ "Through public or private APIs. The transport company almost always has a way of knowing where their transports are. This data can then be shared with other organisations. Some of the APIs are available for free and sometimes they will pay for access." ], "score": [...
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5qhbrw
How come Digg died but Reddit thrived?
Technology
explainlikeimfive
{ "a_id": [ "dczasnp", "dcz8z96" ], "text": [ "I came here from Digg when the collapse came. Before that day, Digg had a far superior look to it.. it was “Web 2.0” CSS – rounded buttons, soft edges. Reddit was a “Wall of text” and muddled with data. On my normal day, I would open URL_0 and scroll thro...
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5qhebi
How do most companies monitor their employee's internet activity?
I recently left the start-up business world and started working for a large corporation. At my old jobs, I used to use social media, do my banking, and handle personal things online at work in my downtime. This is pretty much frowned upon and not allowed at my new job so most "non-work" sites are blocked. I understand ...
Technology
explainlikeimfive
{ "a_id": [ "dcz7oaj" ], "text": [ "It can vary widely, depending on the company. Most corporations do have a \"you're supposed to only use work equipment for work\" policy, but smaller organizations may not have much to monitor their employees besides some simple blocks and antivirus/security software. I...
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5qhr27
Why is Social Media so addictive?
Technology
explainlikeimfive
{ "a_id": [ "dczao7k" ], "text": [ "Good ol' dopamine. Social media is a constant stream of potentially new and interesting information, or funny memes and such. This triggers your dopamine response and like many things that trigger dopamine it can become addictive, especially since it takes little effort...
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[ "url" ]
5qhz1i
why must I first dial 1 before calling this number?
Computers can land a satellite on a meteor, but can't add the 1 themselves?
Technology
explainlikeimfive
{ "a_id": [ "dczcp3m", "dczdroe" ], "text": [ "The 1 is part of the number. It's the country code, and indicates that the number is based in the US or Canada. The system can't add the 1 itself, because it has no way of knowing what country you want to call unless you tell it.", "They do. See why y...
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[ "url" ]
5qjn9g
Why is Apple suing Qualcomm?
Technology
explainlikeimfive
{ "a_id": [ "dcztiyb" ], "text": [ "Qualcomm developed a lot of the technologies behind LTE, and have patents on them. When a company's technology gets incorporated into a standard like LTE, they have to promise to let other people use those patents under \"fair, reasonable, and non-discriminatory\" terms...
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5qkjw7
Why can't huge companies like Google and YouTube beat ad blockers?
Technology
explainlikeimfive
{ "a_id": [ "dd00vhz", "dd00eis", "dd007l3" ], "text": [ "Google doesn't go to great lengths to prevent ad blockers for the same reason that Walmart and Target don't use draconian measures to stop petty theft. Sure, a big store could eliminate *all* petty theft if they wanted to - but not without ...
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5ql0z0
why water completely damages a cell phone when submerged.
Technology
explainlikeimfive
{ "a_id": [ "dd03bf6" ], "text": [ "Electronic circuits are designed to only allow electricity to pass through certain parts at certain times. That's how your phone works. It's a set of boolean functions (1 or 0/true or false). Electricity passes through chip, and it makes a decision such as \"and/or\". I...
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5qly78
If monitors only have 3 colored pixels: red, green, and blue, how do we see colors like yellow on our computers/phones?
So, as I understand it, the basic monitor has pixels and those pixels can be colored in as red, green or blue. If those are the only colors on the monitor, how can we see colors like yellow, or even different shades of yellow?
Technology
explainlikeimfive
{ "a_id": [ "dd0bb0n" ], "text": [ "Your eyes can only *detect* red, green, and blue. Yellow light has a wavelength between that of red and green, so when yellow light hits our eyes, it stimulates the red and the green receptors just a little bit (rather than stimulating the red receptor a lot and the gre...
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5qoepv
DRM and how it actually stops pirates instead of just making it more difficult for me to play my movies on my many devices, etc...
DRM has been around the block, and eventually removed from music in pretty much every market place, but only increased in invasiveness with movies. Despite this, pirates can circumvent enough DRM schemes that pirated movies are common. Are there quantifiable ways in which it's deceased movie piracy, or is the inconveni...
Technology
explainlikeimfive
{ "a_id": [ "dd0tekl", "dd1474m" ], "text": [ "DRM on movies *is* dumb. Worst case, people can just record their screen while watching a movie legally. Best case, people just remove it. It's only an inconvenience for the legal buyer. Same goes for games (aside from Denuvo, which hasn't been cracked ye...
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5qohy8
Why do every (most) games start with one having to "press a button" to get to the game menu?
Technology
explainlikeimfive
{ "a_id": [ "dd0zifw" ], "text": [ "most games have to load the main menu into memory, so it is waiting for you to press a button to command it to load it. otherwise most games go into a demo mode while its waiting" ], "score": [ 3 ], "text_urls": [ [] ] }
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5qovvo
What would happen if I followed one of those "Shoot the target to win a new iPhone" pop-ups on a webpage to the very end?
Technology
explainlikeimfive
{ "a_id": [ "dd0y09n" ], "text": [ "Either never get to the end or end up on a site where you have to complete 2 offers from each of 3 tiers and the last tier is usually signing up for pricey services. But it's set up so that they get all kinds of personal info from you and have you signed up for spammy c...
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5qpcgc
How do mobile companies like Verizon and Sprint decide on data charges? Does using more data really cost them more money?
Technology
explainlikeimfive
{ "a_id": [ "dd11a2z", "dd11rep" ], "text": [ "Yes, carrying more traffic costs them more money. Much of that is in upgrades - e.g. adding more antennas on towers and adding more backhaul capacity from those to the core of their network, upgrading circuits in the core of their network and adding trans...
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5qpo45
Why do internet browsers fail to prevent "add extension" advert pages from locking up the browser?
Technology
explainlikeimfive
{ "a_id": [ "dd191k3" ], "text": [ "There's lots of Javascript and HTML(5) APIs around that allow websites to provide cool content such as web apps and games. Sadly, since the authors of these APIs forget that there are evil developers around, they end up giving the APIs a lot of control over the browser ...
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5qpq34
Why do different parts of the world have different emergency numbers?
Eg. Currently living in Switzerland where the emergency number is 117, whereas in most European countries it's 112, etc.
Technology
explainlikeimfive
{ "a_id": [ "dd13nty" ], "text": [ "Interesting question! In the USA, AT & T recommended 911 back in 1967 as the nationwide emergency number. AT & T chose 911 as it fit into the North American Dialing Plan N11 code system (dial 411 for directory assistance, 611 for repair telephone repair, etc.) and 9 had...
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5qqh1j
How do video game servers differ from web servers?
Technology
explainlikeimfive
{ "a_id": [ "dd1a1ln", "dd1o0gc" ], "text": [ "Oh boy, something I can explain! Generally, the two are very similar. (The software is the only difference) A server's job is to serve (hence the name *server*) content to a user that is asking for it, and receive and process input from the user. With a g...
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5qrxdx
Can someone please explain how Jurassic Park (1993) was visually so ahead of its time, it seems almost comparable todays visual effects?
Technology
explainlikeimfive
{ "a_id": [ "dd1v3ms", "dd1s1k3", "dd1p8uk", "dd1qp14", "dd1yji5", "dd1rr0i", "dd1mauy", "dd1v0lg", "dd1mflo", "dd1q4nl", "dd1urcl", "dd1pr3x", "dd1scxb", "dd1sbp5", "dd1shk7", "dd1s97u", "dd1unq8", "dd1qskm", "dd1r0wi", "dd23b72", "d...
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5qsh5y
Why is the YouTube video player so much better than other sites (For instance ESPN, Netlfix, SlingTV, etc)?
I have found myself getting more and more frustrated with video players and streaming, especially on sites that I use frequently; ESPN being the most common. On seemingly every other video site with regards to jumping forward or back, or even just starting a video, there is a major issue with speed, buffering, and skip...
Technology
explainlikeimfive
{ "a_id": [ "dd1ru7r", "dd1r9fi", "dd1vxbm", "dd1rana" ], "text": [ "Youtube has a lot of servers, where they store the videos they send to you, in lots of places. This means that odds are better they'll have a server ready to respond to your request for a video, they'll have more bandwidth an...
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5qt88d
How can malware get installed on your computer just by openning up a website and without the user getting notified about a download?
Technology
explainlikeimfive
{ "a_id": [ "dd1zzhp", "dd1y24k", "dd1yauv", "dd240t0" ], "text": [ "Malware is mostly spread through security vulnerabilities on your computer, for example in your browser or some plugins your browser uses. The most common ways for an infection are through JavaScript or the Flash plugin. Some...
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5qufpa
Why US Telecos still use CDMA technology, when majority of the world uses GSM for the communication?
What's benefit of using CDMA in the US ?
Technology
explainlikeimfive
{ "a_id": [ "dd294jr", "dd2eyxc" ], "text": [ "The main reasons are a matter of timing, corporate greed and legacy. Back when the US networks where starting to form, the switch from analogue to digital cellular technology was also happening and CDMA had some interesting advantages over GSM. One of the...
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5quj61
What is the difference between Chrome & Chromium, and who owns Chromium?
Technology
explainlikeimfive
{ "a_id": [ "dd26t8w" ], "text": [ "Chrome is a browser created by Google. Chromium is an open source browser based on Chrome. Chrome OS is an operating system made by Google, where the Chrome browser is the primary user interface. It is designed for lightweight devices that are primarily used to access t...
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5qw1o3
Smartphone CPUs, compared to PC ones
What are the best, the worst, and the in-between? I've heard good smarphones use Snapdragon, does that mean they are the i7 of smartphones?
Technology
explainlikeimfive
{ "a_id": [ "dd2iuab", "dd39l9q" ], "text": [ "There are many different brands and models of mobile processors. It's not like Intel vs AMD. The most common ones are from Qualcomm, who are responsible for the Snapdragon. Their flagship processors can be identified by the 8 as the first number. They are...
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5qyp7f
What is ActiveX control? And what does it do?
I tried searching the internet, but I couldn't find anything that I can understand.
Technology
explainlikeimfive
{ "a_id": [ "dd35kuy" ], "text": [ "Before the advent of HTML5, it was difficult for developers to build sophisticated web apps or multimedia sites because the HTML and JavaScript features supported by web browsers at the time were more limited. There also wasn't a standard way to build cross-platform com...
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5qzpcq
Why aren't busses aerodynamic?
I know that some busses are aerodynamic but most of them are not. Why?
Technology
explainlikeimfive
{ "a_id": [ "dd3cn07", "dd3dee0", "dd3ecw4", "dd3ipay" ], "text": [ "Because they're economical when it comes to space. Buses aren't designed to go fast, they're made to carry as many people as possible; as efficiently as possible.", "I can only speak for my country (Germany) here. We have...
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5r34rq
How are rechargeable batteries different from regular ones?
Basically - how are rechargeable batteries able to be charged, but other batteries aren't?
Technology
explainlikeimfive
{ "a_id": [ "dd41iq8" ], "text": [ "Batteries normally store their power through chemical energy. When power is drawn from them, a chemical is broken down that produces the electricity needed for whatever the battery is powering. However, the reaction cannot go on forever, turning whatever chemical is in ...
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5r3dme
How come calculators are the only computers we've commonly adapted solar panels into? Why haven't we intergrated them into things like laptops or cellphones?
Technology
explainlikeimfive
{ "a_id": [ "dd4357g", "dd436dj", "dd47ezn" ], "text": [ "Handheld calculators require very little power; tiny solar panels can power them. You'd need massive panels to power a smart phone. The power consumption difference is more than you'd think.", "They don't require nearly as much power. E...
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5r5ezb
How Pilots and Trucks driver communicate over the radio ?
For example, a plane is flying over a restricted area, so a military aircraft, Say Turn around... bla bla, how one plane find the radio signal of another plane ? and same with trucks drivers, for example one truck pass another truck in the route, sometimes they pick up the radio and say something to each other, how the...
Technology
explainlikeimfive
{ "a_id": [ "dd4nbpb" ], "text": [ "YouTube has interesting conversations between tower and planes. Search for \"ATC recordings.\" A guy named 'Kennedy Steve' is famous because of his delivery/humor. You could just search for that as well." ], "score": [ 3 ], "text_urls": [ [] ] }
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5r6j5e
Why do some card machines ask for your pin number when using your debit card while some machines don't?
Additional question, why do card machines now require you to use the chip on your card instead of swiping?
Technology
explainlikeimfive
{ "a_id": [ "dd50k2e" ], "text": [ "Chip cards use tokenization, meaning a 1-use code is used for every transaction. Your card number also tell machines that it's a chip card, so a clone can't be swiped. So if someone somehow stole your number and 1-use code, it would be worthless as that code no longer w...
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5r6jt3
Why is it that in most depictions of UFO's, their vehicle has some kind of rotating piece
ELI5: Why is it that in most depictions of UFO's, their vehicle has some kind of rotating piece?
Technology
explainlikeimfive
{ "a_id": [ "dd4vlp4" ], "text": [ "For the same reason that many depictions of Jesus Christ are of a white Italian esque guy rather than middle eastern, it's become mainstream. However, entertaining the question, some have argued that a UFO would need to spin or else it would risk tumbling around in the ...
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5r6qpo
What's the difference between cmd.exe and Windows PowerShell?
Technology
explainlikeimfive
{ "a_id": [ "dd4x189" ], "text": [ "Ok the ELI5 version. Both are programs that (now this is simplified) present interfaces where the user can interact with the computer using a keyboard for input and see text as output. You type a line (some text + enter key) and program interprets what you typed as a co...
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5r6uyw
Why can't we charge batteries very quickly or even instantly?
Technology
explainlikeimfive
{ "a_id": [ "dd4wwjw", "dd4xf01" ], "text": [ "Batteries are in effect repeatable reversible chemical reactions. Think of, for example, how water turns to ice when you cool it (take energy out) and turns to liquid when you heat it (put energy in). That's basically what a battery is, you load it up wit...
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5r84zy
What is the difference between Shell, Bash, Zsh and terminal?
Technology
explainlikeimfive
{ "a_id": [ "dd54r9k" ], "text": [ "* shell - a program that provides a command line interface to the operating system, especially with Unix/Linux * sh, csh, ksh, bash, zsh - examples of specific shell programs * terminal - used to mean a keyboard and monitor that could connect to a remote computer...now ...
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5r9jsb
Since smartphones are basically tiny computers, why aren't people assembling their own phones like we do for computers?
Is it just a matter of everything being too small, and the parts being too specialized? Don't most phones have similar processors and chips etc?
Technology
explainlikeimfive
{ "a_id": [ "dd5g1l4", "dd5gtdh" ], "text": [ "you got it. same is true of laptops and AIO^*edit PCs. to gain the nescessary density, the components are uniquely designed to shoehorn together into the specially sized case. all of the bones of a phone are proprietary. Even modular parts like sensors an...
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5r9ojc
How are vocals removed from songs to make instrumentals?
Sometimes you can hear a little bit of the vocals still but how do they completely remove them without changing the rest of the sounds?
Technology
explainlikeimfive
{ "a_id": [ "dd5hy9s", "dd5i8qq" ], "text": [ "The vocals were never there in the first place. You're just hearing the instrumental track before the vocals were mixed in. The little bit of vocals you're hearing is because a mic for an instrument is picking it up. Technically, it *is* possible to take ...
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5ravno
How come websites like Google and Amazon are never down "for maintenance?"
Technology
explainlikeimfive
{ "a_id": [ "dd5s7wx", "dd5s4ir", "dd5rjuv", "dd6o58w" ], "text": [ "Think of a big website like it's a house with an address: 200 Web Street. Everyone knows to go to 200 Web Street to get to, say, the Amazon family's house. The Amazon family's house is getting pretty worn out, though, and lot...
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73j5i7
Why can’t video games make walking/running look realistic?
Video games have seen major innovations in recent years, with incredible graphics, new forms of interaction like VR, and more complicated algorithms. But while playing FIFA 18, I noticed that players running around still have the illusion that their feet are sliding around. It seems that their feet are never actually p...
Technology
explainlikeimfive
{ "a_id": [ "dnqpp3y", "dnqplba" ], "text": [ "A lot of movement animation is captured live with peoples' actual body movements ([Example]( URL_0 )) and then these are applied to the character's animation when moving in-game. The problem comes because many states/actions can make the player run faster...
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73l5cq
Why do some websites prevent me from putting a number at the start of my username?
I've noticed a handful of websites I sign up for don't let me start my username with a number. Does it have something to do with attack prevention?
Technology
explainlikeimfive
{ "a_id": [ "dnra4o0", "dnre59z" ], "text": [ "Many programming languages and systems require certain types of identifiers to start with a letter, and programmers often blindly copy these conventions even though there is no technical need for that. Since in a well designed database your username will ...
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73lgga
How did we "solve" the Y2K problem? Was our solution completely thorough?
Technology
explainlikeimfive
{ "a_id": [ "dnr6ale", "dnrfkfn", "dnr5ese", "dnrb774", "dnr5olh", "dnrvbc8", "dnr7okf", "dnr7xxg", "dnr71lp" ], "text": [ "We didn't \"solve it\" as much as \"address it\" one piece of software at a time, by whatever organization owned/operated the affected system. Critica...
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73m6la
Why do newly released blockbuster films only circulate on the internet when they have been released on DVD?
I find it strange that when a film is released to cinemas worldwide, it never leaves their systems. It doesn't get hacked. Angry employees don't leak them. It is tightly contained within the bounds of where the filmmakers want them and quite literally does not leave that spot until they want it to --and I'm not quite s...
Technology
explainlikeimfive
{ "a_id": [ "dnrc57j", "dnravuz", "dnrodvn", "dnrfkeg" ], "text": [ "First of all, cinemas don't get their movies on DVDs (or Bluray for that matter). They used to get movies on movie reels back in the days of analog film. These days cinemas receive a Digital Cinema Package, or [DCP]( URL_0 ),...
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73p6uv
Why is Windows 8.1 Considered the 'Worst' Microsoft OS?
Technology
explainlikeimfive
{ "a_id": [ "dns1bdm", "dns1e9k", "dns2ffp", "dns2za7", "dns3its", "dns7lay", "dns59hf", "dns6wmq" ], "text": [ "It's far from the worst, it's just the most recent unpopular one. Windows ME is undeniably the biggest turd ever shat out by Redmond. While Win8 wasn't perfect, a lo...
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