q_id stringlengths 6 6 | title stringlengths 4 294 | selftext stringlengths 0 2.48k | category stringclasses 1
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mkt18j | Why can’t you access a website if there’s too much traffic? How does that work? | Technology | explainlikeimfive | {
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"Well, can you move onto a highway that is already filled to capacity with other traffic participants? Just like you have limited bandwidth available to perform up- and downloads, every site's webserver has limited bandwidth available to perform up- and do... | [
"url"
] | [
"url"
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ml08ab | Internet speed fixed by turning wifi off and on. | Whenever I have a slow internet connection on my laptop or phone, I just turn off and turn on the wifi settings on the phone or laptop. This fixes the issue most of the times. Why? | Technology | explainlikeimfive | {
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"text": [
"Forces the router to clear all of the things gunking up its memory(cookies, trackers, temp files), downloads new firmwareid needed on reboot, and at the end of the day.... The poor thing needed a break ages ago. That hamster has been running non stop for.... | [
"url"
] | [
"url"
] |
ml2i76 | How does this audio clip re-write itself | (rickroll warning) Play it once then play it again. URL_0 You might have to download it | Technology | explainlikeimfive | {
"a_id": [
"gtj6u1v"
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"text": [
"Technically speaking, it doesn't. What's going on is the original creator is exploiting a property of OGG Vorbis files whereby they can technically contain more than one audio file. This would never occur in the wild, and can only happen through engineering. By manipula... | [
"url"
] | [
"url"
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ml2vfj | how does a computer trackpad or a phone screen tell if a finger is touching it or a brick? | Im asking because a finger will work, but no matter how hard you push with a brick nothing will happen. | Technology | explainlikeimfive | {
"a_id": [
"gtj906q",
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"text": [
"Basically, behind the screen is a big grid of tiny capacitors. As our finger gets close to them, the electrical current changes due to the interaction with our body. Our charge reacts with their charge. The system is optimised to respond wi... | [
"url"
] | [
"url"
] |
ml3aq6 | Why can't Window's notorious "blue screens of death" be more precise with their diagnosis? | Technology | explainlikeimfive | {
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"gtjaykf",
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"text": [
"The blue screen of death is as low level error. This usually means the computer has made a core dump, and an intelligent human agent (i.e. A programmer) is needed to figure it out. All the Computer knows for sure is the last thing it tried that failed.",
... | [
"url"
] | [
"url"
] | |
ml6w2n | Is flying a plane hard? In terms of difficulty, is it comparable to driving a car? | Technology | explainlikeimfive | {
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"text": [
"Cruising, banking and so on are comparable in difficulty. Landing it is not. The elements of flying a plane in a list of least to most difficult are: *actually flying the thing around *taking off *not crashing ... | [
"url"
] | [
"url"
] | |
ml7xxn | Why are phone displays cheaper than monitors? | you can get a phone with a 1080 x 2400 120hz hdr10+ amoled display for roughly 250 euros and it's a phone doesn't just come with the screen it comes with all sort of sensors,batteries,CPU etc and if you want a 120hz (non oled) monitor you would have to pay about 170-220 usd which is roughly the same price of the phone ... | Technology | explainlikeimfive | {
"a_id": [
"gtjyij3",
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"text": [
"Monitors tend to be a lot more optimised for things like low response time, colour correctness and adaptive sync technologies. They also have to pay licensing fees for using HDMI and DP connections. The panel is also just physically larger, even though th... | [
"url"
] | [
"url"
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ml8bnz | How exactly does a computer randomize a number? What exactly pick the output number? | Technology | explainlikeimfive | {
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"text": [
"A computer never produces a truly random number, it produces something that's called a pseudorandom number. A good pseudorandom number ... | [
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] | [
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ml9pzj | Why can't we see the refresh rate of a screen unless we see it through our peripheral vision? | I was watching TV the other day and noticed when I'd look down at my phone I'd see the flickering of the TV you'd usually only see on camera, usually not visible to the eye. Why can our eyes only detect it if we're not directly looking at it? | Technology | explainlikeimfive | {
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"gtk8xdx"
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"text": [
"The edges of our eyes are good at super-fast responses, so they have a higher refresh rate\\*. This comes at the cost of less actual detail and color information, but like most things, our brains are good at filling in the missing detail. *Our eyes don't have a set refr... | [
"url"
] | [
"url"
] |
mlfzex | How are pirated movies recorded at such a high quality? | Technology | explainlikeimfive | {
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"text": [
"Pirated movies are the same resolution as theater movies. Pirates aren't sitting in the back row with a camcorder. Most of these are data processed from the same data shown on the ... | [
"url"
] | [
"url"
] | |
mlj6zb | how do small clock radio antennas pick up larger radio waves? | I'm guessing it's either my misunderstanding or it's because even though the radio brave is long the up and down amplitude of any radio station is very small in comparison to the radios antennae otherwise I don't understand how a small thing can pick up the entire range of the radio signal when it's larger. | Technology | explainlikeimfive | {
"a_id": [
"gtlq2cr"
],
"text": [
"A radio wave isn't literally going \"up\" and \"down\", it's changing electric and magnetic field strengths. It's more like a sound wave (pressure rising and falling), not a water wave (literally up and down). The familiar graphic of two sine-waves at 90 degrees moving ... | [
"url"
] | [
"url"
] |
mlmtyi | What happens when you tune a radio? How do the frequencies change? | Technology | explainlikeimfive | {
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"gtmjxpy",
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"text": [
"The station frequencies don't change, but by tuning you are adjusting the receive part of your radio to become sensitive to a certain frequency you want to hear. Inside the radio are parts (capacitors, inductor... | [
"url"
] | [
"url"
] | |
mlmv8u | Why routers still take so long to power on in 2021? | I remember dial up connections taking at least 2 minutes to connect, plus the time it took for the computer to turn on. However, with broadband and fiber internet I'd expect everything to be faster. How come routers still take so long to stabilish a connection nowadays? | Technology | explainlikeimfive | {
"a_id": [
"gtmcrbs"
],
"text": [
"routers are basically running a lightweight linux (or whatever) computer inside of them and they need to boot up just the same."
],
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mlnbmn | How do dishwashers clean everything so thoroughly? | Technology | explainlikeimfive | {
"a_id": [
"gtme7gl"
],
"text": [
"It's a combination of high pressure hot water sprayed over and over and over again, and a detergent in the water that breaks down grease and food particles and dissolves them into a solution in the water to be drained away. Even without detergent, just the hot water spr... | [
"url"
] | [
"url"
] | |
mlo9by | how DDOS protection works | I went to a website and it redirected me to a page that said, “wait for up to 5 seconds to be redirected,” and then, approximately 5 seconds later, I got to where I wanted to go. When I looked how it worked, I got a whole bunch of technobabble that I couldn’t understand. What exactly is happening during those 5 seconds... | Technology | explainlikeimfive | {
"a_id": [
"gtmks85"
],
"text": [
"Imagine you're calling a friend, but so are spammers. So many spammers so that every time you call, you get a busy signal and you can't talk to your friend. That's the DDOS. But a new guy says, call me instead and I'll patch you to your friend when I hear your voice so ... | [
"url"
] | [
"url"
] |
mlonnt | What do “sound guys” at live concerts do? | Technology | explainlikeimfive | {
"a_id": [
"gtmn1bk"
],
"text": [
"There are separate mikes for each musician and singer. The sound guy adjusts the volume for each of them. They make sure you can hear the singer over the drums, that sort of thing. The volume you get into the microphone is based on how loud the person is plus how close ... | [
"url"
] | [
"url"
] | |
mlpum4 | Why are Magnetic Resonance Imaging (MRI) machines so incredibly loud? | ELI5: Why are Magnetic Resonance Imaging (MRI) machines so incredibly loud when they are operating? | Technology | explainlikeimfive | {
"a_id": [
"gtmu5te",
"gtnnhwh"
],
"text": [
"The magnetic fields used are extremely strong. To get good image the machines use a minimum amount of steel. Applying huge forces on plastic parts causes them to flex. Flexing them back and forth makes noises.",
"The MRI magnet is always on, whether i... | [
"url"
] | [
"url"
] |
mlqsyy | How do DVDs and CDs work? How do they know what to play? | Technology | explainlikeimfive | {
"a_id": [
"gtn1cmr"
],
"text": [
"Let's start with describing a record player / phonograph. A record has a groove in it that has bumps and grooves in it. You can even see it here: [ URL_0 ]( URL_0 ) The movement of the needle in the record groove gets transmitted directly to the movement of the speaker.... | [
"url"
] | [
"url"
] | |
mluvfd | How does Internet archive work? | URL_0 On this website you can see old snapshot of particular website. How do they maintain it? They crawl the web and save copy of each website? | Technology | explainlikeimfive | {
"a_id": [
"gtnr9an"
],
"text": [
"Yep, that's literally it. They webcrawl constantly. With some internal logic that decides how often to crawl sites, how deep, and what images and similar do or don't get saved. And it's all stored compressed and decompressed when you want to retrieve a site. It's still ... | [
"url"
] | [
"url"
] |
mlx0wy | How are internet speeds regulated by the service provider? | Technology | explainlikeimfive | {
"a_id": [
"gtnzy77"
],
"text": [
"It can be done in simple software settings in the routers that direct the traffic to you. They limit the amount of data to you. Extra data Thai is not forwarded can be stored in a memory buffet or simply dropped. That is if the speed is artificially limited and not beca... | [
"url"
] | [
"url"
] | |
mm0v5z | what is so different from console to pc that prevents game from being developed once and published to different platforms? | I keep hearing that consoles nowaday are basically computer, isn't the hardware almost the same? | Technology | explainlikeimfive | {
"a_id": [
"gtoiloz",
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"text": [
"It's like the difference in speaking English and Japanese. Coding languages are different for different platforms. That's why skyrim didn't come out on every platform at the same time but took years to come out on different platforms. They didn't have to ... | [
"url"
] | [
"url"
] |
mm1bua | Why do rechargeable batteries lose capacity over time? | Technology | explainlikeimfive | {
"a_id": [
"gtovlj3",
"gtq0hlv"
],
"text": [
"Rechargeable batteries relies on chemical reactions to provide electricity, and the opposite chemical reaction occurs when you provide electricity **to** the battery. That's how they store the energy. Because of lots of factors (temperature, impurities, a... | [
"url"
] | [
"url"
] | |
mm2bbr | (HACKING) How are bruteforce, dictionnary and hybrid attack still a thing when a server can just limit the number of attempt per seconds ? | Technology | explainlikeimfive | {
"a_id": [
"gtor0o9",
"gtov8bo",
"gtoqu4o"
],
"text": [
"Normally you don't attack the server, you manage to get a leaked copy of the database (which holds the encrypted/hashed passwords) and brute force that. Same goes with winrar - you don't try to break the encryption using winrar, you write y... | [
"url"
] | [
"url"
] | |
mmaqia | Why is everything in 3D modeling triangles? | Downloaded blender looking to try something new, gain a new skill. Fired up some YouTube tutorials, after a while I’m just left wondering why is literally everything made of triangles? I get that you can make other shapes out of all triangles, but why use two triangles when a rectangle would work just as well? | Technology | explainlikeimfive | {
"a_id": [
"gtq8vzr",
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"text": [
"You already said it yourself, every shape can be made out of triangles. Most modeling is done using meshing, which is a large series of interconnected nodes (usually triangular meshing). I think a good way of picturing this is if you had a ... | [
"url"
] | [
"url"
] |
mmb93i | Why do otherwis reputable news agencies choose to host fake/misleading clickbait articles on their sites? | Technology | explainlikeimfive | {
"a_id": [
"gtqbmfs"
],
"text": [
"Because it makes them money. They are corporations, and corporations exist for a solitary purpose: make the stockholders money *NOW*."
],
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mmjfj1 | Why does a computer screen appear brighter when viewed from above, and darker / of a higher contrast when seen from below the face of the screen? | for instance when you tilt the laptop screen too far towards yourself or too far backwards. Also, this doesn't appear to happen with a phone | Technology | explainlikeimfive | {
"a_id": [
"gtrx7vu"
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"text": [
"The answer is, it depends on the screen. Electronic screens are complicated devices. Essentially we have many “pixels” that emit light of varying colors, but.... how do we do that? There are different ways to physically make a screen that does this, and each has differe... | [
"url"
] | [
"url"
] |
mmnw88 | - After Cookie consents became mandatory, some websites have suddenly added "legitimate interest" to their consent boxes, which are opt-out. What does "Legitimate interest" cover, and why is this allowed? | Technology | explainlikeimfive | {
"a_id": [
"gtsi3ph",
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"text": [
"\"Legitimate interest\" is literaly what is written in the actual law, so its hard to know what counts as legitimate and what not at this point of time. There will be lawsuits and court roulings that will make it more clear in the future, but for now, noo... | [
"url"
] | [
"url"
] | |
mmpowl | How come some new android mobile faces same age old problems like overheating, display issues, fingerprint issues again and again especially when they are from same vendor and with similar software too. | Technology | explainlikeimfive | {
"a_id": [
"gtsszx2"
],
"text": [
"Because sales are still high enough to justify releasing with issues. They have to release a phone each year to stay with the competition and this years phone was designed well before the last years model was released...... Isuues with this model are likey to be address... | [
"url"
] | [
"url"
] | |
mmun85 | Why does water “destroy” electronics and how does waterproofing work to stop this | Technology | explainlikeimfive | {
"a_id": [
"gttmz29",
"gttmfqp",
"gttmjl9"
],
"text": [
"Water contains Impurities that make it conductive to electric current, when a piece of electronics gets wet the current flows where it should not go and can damage the components. Water only damages electronics that have a power source, ele... | [
"url"
] | [
"url"
] | |
mn30gt | How are vibration functions created in electrical devices (cell phones, sex toys, etc.)? | Technology | explainlikeimfive | {
"a_id": [
"gtv49b9",
"gtv67un",
"gtv4i8s"
],
"text": [
"An electric motor turns a shaft with an off-center weight. This weight shifts the system around and round.",
"URL_0 behold! this is the rumble in a ps3 controller. it spins that heavy metal thing that's off balance at different speeds t... | [
"url"
] | [
"url"
] | |
mn39eq | How do anti-piracy screens function, and is it possible to accidentally trigger them? | I've always wondered how anti-piracy screens work, and the chances of accidentally triggering them (an irrational fear i have). How do they work, and can you accidentally trigger them? | Technology | explainlikeimfive | {
"a_id": [
"gtv8jym"
],
"text": [
"It really depends on the console. For example, most the ones on the SNES work by checking to see if the cartridge had more SRAM than the game shipped with, since early copiers just gave the console enough that any game would work. For modern games with antipiracy, the d... | [
"url"
] | [
"url"
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mn6obr | Why are printers so fussy? | Technology | explainlikeimfive | {
"a_id": [
"gtvviju",
"gtvsg5w"
],
"text": [
"Short version: capitalism. Why make a better printer if they don’t have to? Longer version: because involving moving parts means things need to be maintained, and that doesn’t happen. Comparatively, most other tech has very few moving parts. Easier to mak... | [
"url"
] | [
"url"
] | |
mn8vmz | why it is only possible to insert custom code into some games but not others? | The two examples that come to mind are Mario World and Paper Mario, where custom code injections are frequently used by speed runners (credit warps) or even to write custom programs within the game like Flappy Bird which Sethbling did. What is it about the design of these games which allow for this type of manipulation... | Technology | explainlikeimfive | {
"a_id": [
"gtwmv74"
],
"text": [
"Sethbling explains it about as well as can be: URL_0 But the tldr is: - Games often contain programming errors. - Sometimes these errors make it possible to control contents of memory. - And sometimes the errors make it possible to tell the console to execute the conten... | [
"url"
] | [
"url"
] |
mncnl2 | What is Edge Computing and how it differs from Cloud computing? | Technology | explainlikeimfive | {
"a_id": [
"gtwqssw",
"gtwspne"
],
"text": [
"Cloud computing is using computers in the cloud to calculate things, so you send all your input data to the cloud, it calculates things, and you get the results back. Edge computing is calculating a large portion of the necessary things already before upl... | [
"url"
] | [
"url"
] | |
mnew7l | how do wireless chargers that you just place your phone on work? | Technology | explainlikeimfive | {
"a_id": [
"gtx2d96"
],
"text": [
"They work with inductance. The charger has coils where a current is run through. This creates a magnetic field which can travel through air. A phone with wireless charging also has a coil in the back which picks up this field and translates it to an electric current. By... | [
"url"
] | [
"url"
] | |
mnhnda | How did ancient civilizations discover and mine material ? | Mining and the subsequent purification process is very advanced, so how did so many ancient civilizations figure it out ? | Technology | explainlikeimfive | {
"a_id": [
"gtxiq5n",
"gtxquyb"
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"text": [
"They studied their environment in detail, their lives depended on it. When they made a fire ring out of some rocks, then could explode and hurt them. Other rocks melted, and shiny metals were left in the fire afterwards.",
"The stone age was proceeded... | [
"url"
] | [
"url"
] |
mnlzhy | Why does the light on my laptop charger stay on even once it's been disconnected from the mains? | Technology | explainlikeimfive | {
"a_id": [
"gty9yae",
"gtya7ie"
],
"text": [
"It contains capacitors. Your laptop charger is converting the incoming AC power to DC and stepping down the voltage. It contains various components to accomplish this, some include capacitors. Once you unplug it the capacitors will be discharging and will... | [
"url"
] | [
"url"
] | |
mnpjwf | What is a firewall? | Are they even still relevant? What do they do? | Technology | explainlikeimfive | {
"a_id": [
"gtz0690",
"gtyyfk9",
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"gtyz7zh"
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"text": [
"Imagine you live in a skyrise apartment building in a big city. The firewall is like the doorman. A random guy tries to walk into the building towards the elevators. The doorman is all, \"yo, hold up! Who are you here to see?... | [
"url"
] | [
"url"
] |
mnqtc0 | How does Noise Cancelling Work? | Technology | explainlikeimfive | {
"a_id": [
"gtz7ove"
],
"text": [
"Sound is a compression wave, which means it’s alternating regions of air pushed together and pulled apart, hundreds of times a second. If the headphones put out sound that pushes during the pulls and pulls during the pushes, adding them together ends up with no variatio... | [
"url"
] | [
"url"
] | |
mo0fk9 | Why would an IPS display on a laptop be important if you won't be viewing it from the side anyway? | I understand why it's good for ultra wide monitors, but don't you look at laptops straight on anyways? Doesn't that deny the need for better viewing angles? | Technology | explainlikeimfive | {
"a_id": [
"gu0uhhr",
"gu0uxhm",
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],
"text": [
"Because IPS displays are better at more than just viewing angles. IPS displays are better than TN displays at color reproduction. If you want better image quality and don't need fast response times IPS panels are generally better.",
"Yo... | [
"url"
] | [
"url"
] |
mo1fze | What exactly happened to create a gigantic power jump between NVIDIA’s 900 series and 1000 series? Why hasn’t it happened again (yet)? | I was watching some benchmarks on YouTube a few days ago and the power gap between a 980 Ti and 1080 Ti was like 50-70% which sounds just insane. I think most power jumps in the 2000 and 3000 series cap out at 30-40% if I remember correctly. | Technology | explainlikeimfive | {
"a_id": [
"gu1ls0s"
],
"text": [
"The process node dropped significantly, but we've stalled out since then You'll always see discussion about 14nm or 10nm as being an important change for a CPU or GPU, and it really is. That \"process node\" is roughly the width of the transistors so going from 14 to 10... | [
"url"
] | [
"url"
] |
mo3qj8 | what does ping and jitter mean when we talk about internet speed | Technology | explainlikeimfive | {
"a_id": [
"gu1ge51",
"gu1k7vn",
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"gu1pwvk",
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"text": [
"Ping is a tool to measure round trip time (RTT). This is how long it takes for a message to both reach the other side and return. Many other posts are describing ping as one way time which is incorrect. The too... | [
"url"
] | [
"url"
] | |
mo6t0l | Why does a “tilt-shift" effect make a picture look like a miniature scene? | Technology | explainlikeimfive | {
"a_id": [
"gu2hxbf",
"gu1z7mo",
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"text": [
"Imagine two scenarios: * A: a real-life city with tall buildings, photographed by a drone and * B: a miniature version of the same city... | [
"url"
] | [
"url"
] | |
mo9ds3 | What's the difference between path tracing and ray tracing? | Technology | explainlikeimfive | {
"a_id": [
"gu2e0gb"
],
"text": [
"Path tracing is a form of ray tracing. Ray tracing is a family of rendering methods based on shooting rays to estimate the path of light in a scene. There are many similar, but subtly different, ways to actually use rays to to render an image. Path tracing is kind of th... | [
"url"
] | [
"url"
] | |
modv0j | How can my phone contact emergency services, despite signal? | Technology | explainlikeimfive | {
"a_id": [
"gu33osu",
"gu33ui2"
],
"text": [
"Carriers, by law, are forced to accept an emergency call from any device capable of communicating on their network (even if it's not a type of device whitelisted for their customers), regardless if the caller is a current subscriber or not For example, if... | [
"url"
] | [
"url"
] | |
moimk2 | How exactly do solar panels work? | Technology | explainlikeimfive | {
"a_id": [
"gu41cwk",
"gu3zfk2"
],
"text": [
"Solar panels are made of many photovoltaic cells linked together. Photovoltaic cells convert sunlight into electricity. They do this by allowing little particles of light, called photons, to knock electrons free from atoms. When these electrons are knocke... | [
"url"
] | [
"url"
] | |
mok2rh | Why are micro waves used to heat up food? | Why can't radio waves, infrared waves, or visible light waves be used to heat up food in microwaves? Why are micro waves preferred? | Technology | explainlikeimfive | {
"a_id": [
"gu497oy",
"gu4lz2u",
"gu480hd"
],
"text": [
"This is actually a fairly complex mechanism that many get wrong. Most think it causes vibrations in the water molecule but it doesn't! Instead it causes semi rotations due to the dipole geometry of the water molecule (dipole momentum). Micr... | [
"url"
] | [
"url"
] |
mola8j | Why does taking photos using the Rule of Thirds produce much more aesthetic images than centering the object? | Technology | explainlikeimfive | {
"a_id": [
"gu4l87t",
"gu4ha4t"
],
"text": [
"The first thing that comes to my mind is movement. Having the subject framed at one of the thirds intersections keeps the viewer’s eyes moving around the photograph. It’s not stagnant. Some photographs are able to be captivating without using this “rule”,... | [
"url"
] | [
"url"
] | |
mopkc7 | I hear about SAAS all the time but what is SAAS 2.0? | Technology | explainlikeimfive | {
"a_id": [
"gu54cwh"
],
"text": [
"SaaS \"1.0\" are largely fixed solutions, the premise of SaaS \"2.0\" is that they will let you create tailored solutions on top of a provided base, along with the tools you need to tailor it. Software as a Service (SaaS) \"1.0\" is where a company provides a useful ser... | [
"url"
] | [
"url"
] | |
moqyjr | when a website temporarily "goes down," what is actually happening? | Technology | explainlikeimfive | {
"a_id": [
"gu5c7fh",
"gu5atmq"
],
"text": [
"Many people think of websites like a movie theater, where if you want to see a movie (website) you just go to the theater number (web address) and the movie is being shown there to everyone watching. However, it's much more like the early Netflix model wh... | [
"url"
] | [
"url"
] | |
mov7mw | When you downsize a pixel based image, how are the pixels that are to be removed determined? | Technology | explainlikeimfive | {
"a_id": [
"gu6974c",
"gu62tpw"
],
"text": [
"That depends on the downsizing algorithm used. Generally where many pixels will be squashed to a single pixel most methods will in a manner find the \"average\" color of the colors being merged. good downsizing algorithms will have more tricks to determin... | [
"url"
] | [
"url"
] | |
mowrta | Why do manufacturers still put power supplies on the plugs instead of having a cord with the plug on it come out? | Why are companies still [making plugs like this]( URL_0 ) where the plug is built directly into the box when they could easily make a [design like this]( URL_1 ) where the plug is attached to the cord? Those big box plugs just take up space and make it hard to connect other power cables in the vicinity. | Technology | explainlikeimfive | {
"a_id": [
"gu69jmc",
"gu69gzq"
],
"text": [
"Plug-mounted converters are cheaper to make where practical - it's a whole other cable and connector that is removed from the design. Switched-mode power supplies are coming a long way in removing the bulk from these plug-mounted adapters - many USB phone... | [
"url"
] | [
"url"
] |
moyobx | Why do certain types of images get gradually worse in quality after being repeatedly downloaded and respread? | Images like .jpg for example | Technology | explainlikeimfive | {
"a_id": [
"gu7hb22"
],
"text": [
"Your premise is wrong; images don't get worse by being downloaded or being re-spread. When you download or share a file, you are sharing an exact copy, barring the rare case of data corruption. Images compressed using a lossy compression algorithm like JPEG will degrade... | [
"url"
] | [
"url"
] |
moyun9 | why tape doesn't leave sticky residue on itself when wrapped in itself | Often when I peel tape off of something there will be some stickyness where the tape was, but on the roll of tape the back of the tape where tape was once stuck onto isn't sticky at all. | Technology | explainlikeimfive | {
"a_id": [
"gu6wgea",
"gu7si58"
],
"text": [
"The tape material is coated on one side with something the adhesive doesn't adhere to very well. Think a piece of paper with wax on one side, glue on the other.",
"Okay, so the smoother a surface is, the less things will stick to it. Think of a rock c... | [
"url"
] | [
"url"
] |
moyxh4 | Why does high volume damage speakers. And why are TVs designed with the option to go so high if it damages them | Technology | explainlikeimfive | {
"a_id": [
"gu6o4mn",
"gu71lxt",
"gu6o693",
"gu7b7a2",
"gu80bx4"
],
"text": [
"Speakers work by moving a cone back and forth with a magnet which creates sound waves in the air. To make something louder, you need to move the cone a bigger distance. Rapid movement over bigger distances can ... | [
"url"
] | [
"url"
] | |
mp20ev | Why does streaming videos in 4K on platforms like HBO or Netflix always have such great, seamless quality but streaming a YouTube video at high quality always needs long buffer times and still sometimes has pixelated quality? | Technology | explainlikeimfive | {
"a_id": [
"gu7b8dr"
],
"text": [
"Netflix doesn't have to deal with timelines for when videos go live. They can spend the time and effort to process the video for quality way ahead of time. I mean it's not like their library includes things that were produced and/or released TODAY. Even if it was releas... | [
"url"
] | [
"url"
] | |
mp3a4g | Why do movies/TV shows show credits both at the start and end of said show/movie? | Not gonna lie, I've been wondering this since I was about 5 | Technology | explainlikeimfive | {
"a_id": [
"gu7dzoo",
"gu7d410",
"gu7dcco"
],
"text": [
"It used to be that all the credits were shown at the start of a movie but who wants to sit through 20 minutes of credits before the movie starts? So nowadays generally only the big names get credited at the start and everyone else at the en... | [
"url"
] | [
"url"
] |
mp92qm | Why do people in videos seem to walk faster than normal? | Technology | explainlikeimfive | {
"a_id": [
"gu8dxgl"
],
"text": [
"If you are talking about old videos (1920s), they were recorded with a much lower fps because of technology limitations. So, the theaters often played them at a faster rate than they were filmed to avoid stuttering, and this became the norm at that time."
],
"score"... | [
"url"
] | [
"url"
] | |
mpbyiv | in computer hacking, what does it mean to get in via a back door and how does it work? | Technology | explainlikeimfive | {
"a_id": [
"gu8snnz",
"gu8w7n2",
"gualpfw"
],
"text": [
"Lots of things have a normal way to get in, where you just are a user and log in and use the site, that would be the front door. For a lot of reasons a lot of things also have numerous other ways other things get in, like special code for t... | [
"url"
] | [
"url"
] | |
mpgrc4 | How do parental filters work? Is there a list of all adult content sites? Does someone manually add them, or is it automated? | Technology | explainlikeimfive | {
"a_id": [
"gu9m2sl"
],
"text": [
"It depends on the system used to monitor the adult sites. Some are manually added by the parent(s) themselves, some are automated to block known adult sites (or games, or whatever else needs to be blocked), others are a massive list that's added to manually. It can also... | [
"url"
] | [
"url"
] | |
mpnuo0 | what makes programming languages like go and rust memory-safe and c++ not? | Technology | explainlikeimfive | {
"a_id": [
"guaz3j4",
"gub0h99",
"guazwg4"
],
"text": [
"In old languages like C and C++ it's up to the programmer to not make mistakes. For example if you type: int a[10]; a[16] = 0; The first line gives you an array (like a group or collection) of 10 integers/numbers. The second line, you set t... | [
"url"
] | [
"url"
] | |
mpu53q | How are NFT's bad for the environment | Technology | explainlikeimfive | {
"a_id": [
"guc02hq",
"guc21h4"
],
"text": [
"Such tokens are typically issued and traded on the Ethereum cryptocurrency's blockchain (taking up space in blocks where they are issued/transferred) The process of mining Ether consumes a lot of electricity, and a lot of electricity is generated using fo... | [
"url"
] | [
"url"
] | |
mq5eat | . If the primary colors are RYB, why are all electronics RGB? | Technology | explainlikeimfive | {
"a_id": [
"gudvskq"
],
"text": [
"Light and pigment are different. If you mix all the colors of crayons together you get black. If you mix all the colors of light together you get white. RGB is used in lights because red is the lowest frequency, blue is the highest and green is in the middle."
],
"s... | [
"url"
] | [
"url"
] | |
mq6cv3 | What’s keeping me from manually partitioning the hard drive on an M1 Mac, putting Windows on one of the partitions and booting from that? | Technology | explainlikeimfive | {
"a_id": [
"gue1vhe"
],
"text": [
"ARM speaks a language that Windows doesn't understand. Microsoft has attempted to make Windows understand it, but it isn't quite there yet. Until Microsoft teaches Windows a different language, Windows cannot understand ARM. & #x200B; ELI15: Windows currently only offer... | [
"url"
] | [
"url"
] | |
mqaah7 | Can someone explain to me how scammers can use my number to call people multiple times, but I’m completely unaware of it? | Technology | explainlikeimfive | {
"a_id": [
"gueq855",
"gues1br"
],
"text": [
"It is easy to spoof caller ID. Spammers just rotate through a series of random phone numbers to prevent their calls from being blocked.",
"Most people rely on caller id, which is a very different system from what telephone companies use internally to ... | [
"url"
] | [
"url"
] | |
mqb29k | What makes flying a helicopter so hard compared to a plane? Is there a "computer-assisted" mode on modern helicopters that greatly reduces this difficulty? | A few sample questions, any info would be most appreciated: I've heard a bit about needing to constantly calibrate the two rotors (top and tail) to keep the copter from spinning out of control. Any more specific information on these difficulties would be useful -- e.g., what types of changes most frequently occur that ... | Technology | explainlikeimfive | {
"a_id": [
"guevc7w",
"guevz6x",
"guexeam"
],
"text": [
"Edit; Thanks everyone for not attacking this comment for it's simplicity as only the most basic of rototrcraft are operated as simply as this description any longer but understanding these basics will give you a basic understanding of most ... | [
"url"
] | [
"url"
] |
mqjwbo | What exactly happens to web content outside of the viewport when you scroll? Does the web browser still see it? What parts of the content does the browser ignore? | Technology | explainlikeimfive | {
"a_id": [
"gugjlpz",
"gugz2q1"
],
"text": [
"Short answer - it depends. But more elaborate is that it depends on how the website was coded itself. By default, browser will load full webpage once you open the URL and that’s what happens in most cases. Some websites though uses approach that would lim... | [
"url"
] | [
"url"
] | |
mqk83o | Night Vision Goggles | Technology | explainlikeimfive | {
"a_id": [
"gugiwxf",
"gugisfb",
"guhzagi"
],
"text": [
"As I recall, they use infrared light and digital imaging. Infrared is just outside of the visible spectrum and thus it doesn't light up the darkness as far as the naked eye is concerned, but it can register on digital cameras and be output ... | [
"url"
] | [
"url"
] | |
mql6ts | How do nuclear reactors work? | Technology | explainlikeimfive | {
"a_id": [
"gugp8gv",
"gugofkx"
],
"text": [
"Uranium atoms are pretty fat, compared to other atoms. Think of a drop of water on a table. You can keep adding little drops to it, but at some point it gets too big and breaks apart. This is like uranium atoms. We can fire bits of atoms into them, and th... | [
"url"
] | [
"url"
] | |
mqpfds | What makes internet faster or slower? | What makes internet speeds faster or slower? How do companies improve on internet speeds? | Technology | explainlikeimfive | {
"a_id": [
"guhi2cn",
"guhapcr",
"guhbs6c"
],
"text": [
"It’s really just a function of plumbing, though digital. For example, the volume of cold water coming out of your bathroom faucet depends on the size of the spout on that faucet, the pipe from it through the house, the pipe from the house t... | [
"url"
] | [
"url"
] |
mqpntq | How are more than a hundred million transistors Fitted on an area of about a millimetre Square? | Technology | explainlikeimfive | {
"a_id": [
"guhbpeb",
"guhdccn",
"guhvjts"
],
"text": [
"By making them *very* small. The \"Node size\" chip manufacturers talk about is based on a measurement of how 'big' the transistors are (the exact meaning of this measurement varies between manufacturers). Usually this is measured in nanome... | [
"url"
] | [
"url"
] | |
mqr8vb | How do video games determine if a button is held or pressed without there being a noticeable input delay? | So, I've wondered for a long time how video games determine if a button is held or just pressed for 2 different actions in games without any noticeable delay. To me, even very slight delays are extremely obvious so I'm just not sure. Sorry if there is an extremely obvious answer, I've just always kind of wondered. | Technology | explainlikeimfive | {
"a_id": [
"guhm5h1",
"guhlrsh",
"guhoynp",
"guhmp5m"
],
"text": [
"From a programming standpoint, you essentially get a button down and button up command. So it's not constantly saying BUTTON PRESS when you hold down a button, the controller knows that the button is in a down state and sends... | [
"url"
] | [
"url"
] |
mqrf9e | What is the difference between "high quality" audio files and "low quality" | What is the difference between "high quality" audio files and "low quality" what are you supposed to be hearing in these higher quality tracks that isn't in the lower quality ones? for example i tried this test URL_0 and it might as well have been the same file 3 times. there is no difference between all the files to m... | Technology | explainlikeimfive | {
"a_id": [
"guhotfy",
"guhuj9g",
"guhmv0z"
],
"text": [
"Compression. Mp3 compresses the sound file which is lower quality. If the sound itself has peaks of 100 for example, to truly experience the sound as if you were there, it would need to be saved exactly as it was played. If you record it as... | [
"url"
] | [
"url"
] |
mqslp8 | How are digital photos made? | Specifically in cameras with mirrors (DSLR) a photo transferred to what you suddenly see on screen? And is the technology same for all kinds of photography: phone, different cameras, etc.? Thanks | Technology | explainlikeimfive | {
"a_id": [
"guhv8hr"
],
"text": [
"Digital cameras use image sensors to take the picture. These sensors are grids of light sensitive components that generate an electrical signal based on the intensity of the light they receive. The components are sensitive to different colors (similar to the pixel layou... | [
"url"
] | [
"url"
] |
mqt0f8 | why aren't more portable devices waterproof by now? It seemed like the direction things were going a few years ago. | Technology | explainlikeimfive | {
"a_id": [
"guhxgon"
],
"text": [
"Extra cost combined with not much need. Its a handy feature to have when you need it, but for the most part people aren't trying to use their devices in the rain/water. Waterproofing all of the seams and openings takes extra time and effort which makes manufacturing mor... | [
"url"
] | [
"url"
] | |
mquj3n | Why do some phones have 108 megapixel cameras, while others stick to 12? | Is there no set in stone way to imprpve picture quality? | Technology | explainlikeimfive | {
"a_id": [
"guic8bu"
],
"text": [
"The pixel count of a camera doesn't directly imply superior image quality. The biggest reason is that if there are more pixels in an imaging sensor, the less light reaches to each individual pixel. Dimmer light means poorer image quality. To compensate dimmer light per ... | [
"url"
] | [
"url"
] |
mqvi8v | How does making a figure 8 with your phone improves it's sense of direction? | Technology | explainlikeimfive | {
"a_id": [
"guie6l1"
],
"text": [
"The compass in your phone responds to the earth's magnetic field, but the compass wants to experience the magnetic field changing around it, so it can know which way is which more effectively."
],
"score": [
5
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
mr4kin | Why does a car engine make the vroom noise, what is actually happening inside to make that happen? | Technology | explainlikeimfive | {
"a_id": [
"guk19ml",
"guk1aqg",
"guk1vsf"
],
"text": [
"Car engines contain cylinders, cylinders use explosions to bounce up and down, turning things which then eventually turn the wheels. The vroom vroom noise is the sound of the explosions and resulting movement in the engine.",
"Little ti... | [
"url"
] | [
"url"
] | |
mr5qom | How does a smartwatch get heart rate using "green light" underneath the watch. | Is it also accurate? How does result compare to an actual blood pressure machine? | Technology | explainlikeimfive | {
"a_id": [
"guka3k0",
"gukbyv0"
],
"text": [
"That green light illuminates the skin, measuring changes in blood volume in the capillary vessels. They don’t really measure blood pressure, they measure pulse, and some level of VO2 (volume of oxygen moved through your system when exercising). The pulse ... | [
"url"
] | [
"url"
] |
mr5s62 | What is the endgame for the rocket boosters that can land again on Earth? | I’ve seen the videos and it’s Absolutely incredible. Where does this tech take us, what is the endgame, and what kind of advancements can be made to it to progress? | Technology | explainlikeimfive | {
"a_id": [
"guk9tcc",
"guk9y8i",
"guk9tpk",
"gukfkm8"
],
"text": [
"It makes space launches less expensive, which in the long run makes space more accessible and enables other activities because the economic barrier to reach space is reduced.",
"The endgame for reusable boosters is speed ... | [
"url"
] | [
"url"
] |
mr6wsh | Why does a crystal radios radios antenna have to be so much longer than a normal radio | Technology | explainlikeimfive | {
"a_id": [
"gukhvyc"
],
"text": [
"The antenna acts as the power source of the radio and needs to be long to harvest as much energy as possible from the very low energy radio wave. Powered radios simply amplify this weak radio wave."
],
"score": [
5
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
mr8fkr | Why do video game developers choose to only release games only on some consoles/PC but not others? How much more work does it take to program a game to operate on a different console, say Switch vs Playstation for example? | Technology | explainlikeimfive | {
"a_id": [
"gukrchh",
"gukqyx9",
"gukus4i",
"gukuycy",
"gukr8bh"
],
"text": [
"It takes a lot of work. Consoles tend to have less power than PCs and each of the major consoles uses a different operating system. PC and Xbox share a lot of internal code, but PCs have thousands of combinatio... | [
"url"
] | [
"url"
] | |
mr9coz | what is the difference between electric and electronic? | Technology | explainlikeimfive | {
"a_id": [
"gukwkwr",
"gukx4fq",
"gukwuyw",
"gukx1pt"
],
"text": [
"electronic is when you transmit digital information/signals electric is when you use electricity to power your device.",
"To be a little more specific, electronics implies the device uses transistors, which are components... | [
"url"
] | [
"url"
] | |
mr9otp | So what would happen if a hospital got hit by a power outage? | Technology | explainlikeimfive | {
"a_id": [
"gukxys1",
"guky0l0",
"gul47za"
],
"text": [
"Hospitals generally always have backup generators that kick in immediately in the event of an outage, as long as they have fuel for them, power outages are not an issue.",
"Hospitals are built with a backup system in place, to protect i... | [
"url"
] | [
"url"
] | |
mr9skf | What makes the storage of data so costly? | Both analog and cloud thoughts are welcome ~ all thoughts really (that aren't humanely offensive) ! Music producer. Constantly re/de-connecting external HDD's for the sake of 'online files' in one project. Is there also a proportion between data-size and what vessel encompasses that storage? | Technology | explainlikeimfive | {
"a_id": [
"gukzdkb",
"gukzix2"
],
"text": [
"First I'd like to say that storage of data in the cloud is dirt cheap, so I don't really understand the motivation of your question. A rule of thumb is $0.02 per month per GB. How is that expensive? Now for the cost drivers: * Availability: If you want a ... | [
"url"
] | [
"url"
] |
mraz5o | How does wireless connection bandwidth work, why does the speed differ so much from factors like connection quality compared to wired connections where it's pretty much a set speed? | When you use a wired connection the stability of the connection always stays the same, meaning the device knows when and how it will receive a signal. However, a, for example, WI-FI connection is very unstable compared to a wired, and the connection speed always differs during a period of time. I've always wondered, ho... | Technology | explainlikeimfive | {
"a_id": [
"gul4kuv",
"gul7imv"
],
"text": [
"The speed is always the same (agreed upon before the transmission starts), but packets might have to be resend when something interferes with the transmission. That can be anything from a random other electrical device turning on to something conductive m... | [
"url"
] | [
"url"
] |
mrb4ks | How does my computer know I removed the CPU and put it back in when it was turned off the whole time? | Technology | explainlikeimfive | {
"a_id": [
"gul58o2"
],
"text": [
"I think it’s due to the coin battery in there to keep certain files and programs on the motherboard from getting erased when there is no power to the computer"
],
"score": [
11
],
"text_urls": [
[]
]
} | [
"url"
] | [
"url"
] | |
mrbudy | Why do datamining leaks happen? | Technology | explainlikeimfive | {
"a_id": [
"gul9qx5"
],
"text": [
"> Why do datamining leaks happen? For the same reasons all security breaches happen - because people have a grudge against their employer, don't shred their documents properly, greedily click that link for the 10000€ bank transfer from Nigeria or think password managers... | [
"url"
] | [
"url"
] | |
mre1jn | Can we create our own internet ? | Can we create a connection to the internet ourselves without having to use a cellular 3g/4g subscription / wifi subscription? | Technology | explainlikeimfive | {
"a_id": [
"gulm8ja",
"gulldbz",
"gulrcpf",
"gulnb49",
"guln340",
"gulnmvr",
"gum85ri",
"gumm4eh",
"gun3mzl",
"gulq908"
],
"text": [
"The internet isn't a resource like wood or water that can be \"produced\". It's a connection to the rest of the computers/servers/sites... | [
"url"
] | [
"url"
] |
mrev4o | How does refrigeration work? And are their limitations in size both small and big? | Technology | explainlikeimfive | {
"a_id": [
"gulre2h"
],
"text": [
"Basically, you have an easily liquefiable gas at the back of the fridge, typically some sort of halogenated carbon based molecule like a Freon (includes the greenhouse gas families CFCs and HFCs). Gases can change temperature fairly easily with pressure, and will decrea... | [
"url"
] | [
"url"
] | |
mrf3ms | In computers, why do some files, even if they are the same size, take longer to be moved or deleted than others? | I noticed this when I deleted a 2 GB video file on my laptop today, which took less than 5 seconds. But when I deleted a separate folder that was smaller than 2 GB, it took way longer to get deleted. | Technology | explainlikeimfive | {
"a_id": [
"gulv4zw",
"guls3sk"
],
"text": [
"This has to do with the way computer usually handle such things as deleting or moving files. Normally when you delete a file, the computer does not actually delete the data itself. Instead it goes to a sort of index where it has a tabel that says where ea... | [
"url"
] | [
"url"
] |
mrgpla | why do computers sometimes make horrible buzzing sounds when crashing/locking up? | Just had this happen to me for the first time in a while and it always catches me off guard. To give my example, I was listening to music on my PC, and mid-song the PC completely locked up and a loud buzzing sound came through my headphones. I've had it happen in the past with other PCs and with game consoles as well, ... | Technology | explainlikeimfive | {
"a_id": [
"gum3ya6"
],
"text": [
"The sound hardware in a PC is designed to work with as little interference from the CPU as possible. To that end, it's generally set up so it can play a chunk of audio from memory without interference--all the CPU needs to do is update the location the audio hardware is... | [
"url"
] | [
"url"
] |
mrgwj3 | How did old NES cartridge games save your game? | I mean the ones like The Legend of Zelda that saved your game without the use of passwords. How was your game saved on the cartridge? Did it work the same way as an old floppy disk? | Technology | explainlikeimfive | {
"a_id": [
"gum3zp7",
"gum4iy0",
"gumqrk1",
"gum40su",
"gumk8rq",
"gunfxl6"
],
"text": [
"It saved on a small memory chip inside the cartridge. They had a small battery (much like, probably even identical to, the ones you find on computer motherboards). After a long enough period of t... | [
"url"
] | [
"url"
] |
mrjba3 | Why are PS4 and PS5 unable to read PS1 or PS2 discs? | They are clearly able to emulate the games based on the PS1 and PS2 games being available on the digital storefront. Edit: Thank you all for the informative replies. | Technology | explainlikeimfive | {
"a_id": [
"gumk1hx",
"gumke7k",
"gun3ilg",
"gumrz5i",
"gumn2rp",
"guns3na",
"gun78oi",
"gunaog1"
],
"text": [
"> Why are PS4 and PS5 unable to read PS1 or PS2 discs? For the same reason a VHS player isn't able to read an SD card. It's not built for that kind of application. T... | [
"url"
] | [
"url"
] |
mrl3xz | Why will streaming services still suggest videos on their app that I have rejected 1000 times? | Technology | explainlikeimfive | {
"a_id": [
"gumyehg",
"gumytrf"
],
"text": [
"As always, such algorithms are responding mainly to what has worked for them in the past, at least moreso than to top-down programming by their creators/owners. So, apparently on the 1001st time, other people have clicked.",
"It probably reevaluates t... | [
"url"
] | [
"url"
] | |
mrn8ej | Why do some screens on electronics capitalize all the letters except for the first one? | Like, a little screen that says “rEADY” on an oven. It happens a lot on alarm clock screens, or that kind of thing. I saw it in Better Call Saul when he’s taking Cinnabon’s out of the oven and I realized I’ve seen it a lot before. I have a picture but it’s not allowed to post here. | Technology | explainlikeimfive | {
"a_id": [
"gunofcp"
],
"text": [
"It's not that they're capitalizing the first letter in particular... it's just that they're very limited insofar as how they can shape letters. They're really only meant for numbers. If you look closely at that type of display, it's made up of a bunch of lights in the s... | [
"url"
] | [
"url"
] |
mrrqzb | Why are there ads on Cocomelon's YouTube channel? | Technology | explainlikeimfive | {
"a_id": [
"guo3zjb"
],
"text": [
"You are allowed to show ads to kids, but they have to be kid friendly. I think YouTube got in trouble because they were showing targeted ads to kids and perhaps ads of a less than child friendly nature. YouTube is allowed to show non-target and child approved ads to chi... | [
"url"
] | [
"url"
] | |
mrrz4x | How did gameboys not only function in but actually need very bright external light in order to see the screen, but modern screens with built-in backlights are nearly impossible to use on bright sunny days? | Technology | explainlikeimfive | {
"a_id": [
"guo5hri",
"guobtg8"
],
"text": [
"Different technologies. The game it used reflected ambient light and filtered it through the crystal matrix; modern displays have a projected light from behind that gets filtered as it comes out towards your eyes. But not all displays are like that; eBook... | [
"url"
] | [
"url"
] | |
mrsgvk | Does a battery weigh more when it’s completely charged vs discharged? | Technology | explainlikeimfive | {
"a_id": [
"guoabql",
"guoanhl"
],
"text": [
"Yes. Also interestingly, here's an easy way to test AA batteries for charge. If you drop a AA battery onto the flat (negative) end from a couple inches and it bounces, its dead. If it thuds, its charged.",
"Not in any meaningful way. A charged battery... | [
"url"
] | [
"url"
] | |
mryc56 | what are the differences between “ URL_0 ” and “ URL_1 ”? | Are there any advantages/disadvantages to using one over the other, or any functional differences between the two? | Technology | explainlikeimfive | {
"a_id": [
"gupw4qo",
"gupaigs"
],
"text": [
"\" URL_0 \" is a town. When you drive into town, someone asks where you're going. If you don't have a specific house in mind, then they send you to the town's default house, where they want all visitors to go. \" URL_0 /page\" is one specific house within... | [
"url"
] | [
"url"
] |
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