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How is it more beneficial to leave money in your Roth IRA instead of your bank savings? | Interesting on a savings account is taxed, while earnings from a Roth IRA are tax free. Additionally, an IRA will probably have a far higher interest rate than a typical savings account at the bankTax free growth, the compounding will really payoff if you’re young, yourmoney will work for you instead you working for th... |
Does multiverse theory defeat itself? | Not necessarily. The best explaination for this that I have ever seen went something like this: Sure there could be an infinite number of universes but that doesn't mean that there is one where the theory doesn't hold; just like there are an infinite number of numbers between three and four, but none of them are five.N... |
how do deer antlers grow? | Antlers are actually and extension of the skull. They start growing as cartilage and eventually turn to bone as they mature. The small velvety fur you see on antlers while attached to a deer carries blood and nutrients to the antlers. They also carry a growth hormone called IGF-1 to the antlers, which why they grow so ... |
How come in the title sequence of some TV shows, an actor will be listed as: 'Actor Name' as 'Character Name' | It's called last billing. It's used when there is an actor of note that isn't the lead character. Since he's not the lead, his name won't come first in the credits. So it's listed last, separated by the rest of the cast with "and" or "with" and sometimes listing the character name so the billing stands out moreIt's par... |
What am I hearing when this super-heated nickel ball is dropped into water? | The ball is so hot that it is vaporizing the water around it creating an air pocket, at this point the area around the ball is so hot that the water is boiling into a gas before it even touches the ball. That pinging sound you hear happens when the air pocket cools down enough to collapse in certain places on the ball,... |
I'm scared of credit cards. How do you use one wisely and efficiently? | Get one from the bank you have an account with. Use it only to pay for things you can afford and only if you have the money in your bank account to pay it off. Go pay it off now . Only use it online on sites you trust. This will help you build credit without spending a bunch of money on credit card interest, which is w... |
Why do some foods have 'expiry' dates and some have 'best before' dates? | Yes, there is *expiry* means do not eat after this date. It's gone bad. Bad, bad, bad. *best before* means it is guaranteed it will taste best before that date. After the date it can still be great, but it also can lose consistency, smell, taste up to you. It might slowly become sour , but that doesn't necessarily mean... |
Why does time flow in the direction it does? | Entropy. Entropy provides a preferred direction for things to happen. If time flowed in the opposite direction, things would tend to get more ordered over time, which is not consistent with physics as we know it. |
How do we know what planets are made from and their temperatures if we have never sent any data collecting instruments to them? | One of the methods we use to tell what other planets are made of is [Spectrophotometry], which is just a fancy way of saying "we take a very hard look at what color and brightness something is". This gives us a good idea of what, for example, the atmosphere of Venus is made up of. As soon as you get to the deeper layer... |
how does Costco sell gas so much cheaper? Don't all gas companies buy gas in bulk? | I don't know where you're from, but from where I'm at Costco is rarely more than 5-10 cents a gallon cheaper than other gas stations in the area. They can get away with it because by people pay $50-$100 a year for the privilege of shopping there and pumping gas there. The $1-$2 savings per fill up isn't that big of a d... |
Why does a paste like mix of Bicarbonate of soda and Vinegar remove red wine stains? | Baking soda itself is sort of magic. It deodorizes, reacts smoothly with heavy acids, buffers well. Works as toothpaste, Hydrophilic, If there is a major chemical spill the first thing the government does is dump a literal ton baking soda on it. Vinegar is acidic and colorless, also polar. The way you remove something ... |
Why does your heart rate rise when you are in a hot shower or a sauna/jacuzzi | Your body has to maintain a certain temperature in order to keep functioning. Certain chemical reactions that are critical to keeping you alive can't happen at temperatures above around 108°F . In addition to delivering oxygen where it needs to go, your circulatory system also helps regulate your body temperature in a ... |
If the British ruled in many key places of the world, why did they not build homes there? | Ever been to the United States? How bout Australia? South Africa? I think you'll find the British retained a fair population in those places. India is more the exception than the rule.There are an awful lot of British or part-British people living in India. Estimates range between [300,000 and 1,000,000] just for those... |
How do Facebook "Meme" Pages get revenue from 'likes' and 'shares'? | They don't, but if someone buys the page they can then post a status and get something in front of all of those people who liked it, and thats valuable to some people. |
Why when you look at objects in mirrors, they are backwards, but they're not also upside-down? | Don't think of it as the mirror makes images backwards or reversing them. The mirror reflects the light from the side the object is on. Your left arm is on the left of the mirror and your head is at the top of the mirror, legs at the bottom etc. If the mirror did truly flip the image backwards then you would see reflec... |
Have there ever been any "good" computer viruses? | Nachi worms patch vulnerabilities in Windows by exploiting those same vulnerabilities to get into the host PC. The Reaper virus was designed to seek out and delete he Creeper virus, making it the first known "antivirus"The first worm, the Morris worm, was supposed to be a harmless experiment. The creator wanted to gaug... |
Why do your muscles randomly twitch? and why doe some only twitch once and others sometimes for minutes? | This may not be an ELI5 answer, but anyone whose muscles are constantly twitching should be checked out by a doctor for potassium, magnesium, and iron deficiencies. And probably improve their diet in the direction of bananas, green vegetables, and red meat. |
what is the difference between .mp3 files and .wav files? | An mp3 file is compressed by a factor of about 10 while a wav file is raw sound data. |
How Tesla is able to compete against other huge companies (with huge R/D)? | The basics of cars are pretty well known & don't take much R & D, it's just the electric drivetrain they need to work on. The big auto manufacturers aren't really interested in the all-electric market because it's too small for them to bother with. To put the numbers in context, Ford sells around 200,000 Focuses a year... |
Why is it unhealthy to remain unconscious for too long? | It isn't unhealthy to remain unconcious for "too long". The problem is that if something renders someone unconscious such as a blow to the head, the longer they are out indicates greater levels of damage and disruption to the brain. You are confusing the cause and the symptom. It isn't bad to sit in a giant pool of blo... |
How can I multiply 2 digit numbers mentally | That approach doesn't work because you are breaking the numbers apart wrong. Remember that what you are doing here is trying to add the number 36 together fifty three times. . The way that you breaking apart that number doesn't get to that result. if you want to simplify numbers that you are multiplying together, you h... |
It has been a cold week in Texas. Why are all of my neighbors covering their shrubbery with what appears to be cotton bedsheets? | They are protecting their plants from frost. The covering allows the plants to get sunlight but prevents frost from penetrating. Even tropical plants can handle fairly low temperatures but frost will damage the plant cells and do them irreparable harm. |
What do they do with all the dirt after building a subway? | Often times it gets used as landfill -- not waste disposal, landfill mind you -- but "landfill" as in extending the coastlines of preexisting land. For example, look at a map of Manhattan from today, and compare it to a vintage map: the island was significantly smaller, and some portions of land didn't even exist yet. ... |
Why does my body produce so much mucus when I'm sick? | Your body produces mucus from mucous membranes which are present in the nasal passage, among other places. Mucus is mostly water and glycoproteins, which is why drinking water is important when you are sick to replace the lost water. The mucus also contains antiseptic enzymes and antibodies. It is a defensive technique... |
How can you drink a whole lot of water, bit still have a very dry mouth? | Because, generally speaking, "dry mouth" is a problem of saliva production. Drinking water can help, since it gives the body more water to "work with", but it won't *necessarily* fix the problem, because it isn't as simple as just getting your mouth wet. |
Why can't I stream cable to my TV wirelessly? | I may not be understanding your question, but here goes. Some television programming providers already do this. AT & T's U-Verse uses set-top boxes that stream their programming over WiFi. Sure, the set-top box needs a cord going to the tv, but you don't need to run cables through walls/floors for each tv. |
What's the deal with toothpaste? | Okay not so much answering the question here but make sure to brush your tongue as well as your teeth, I had bad breath for ages till I started doing this :) |
Why is that when someone asks me something I don't remember it, but like 30 minutes later it randomly pops into my head? | That's because when you think so hard to remember something your brain blocks all of the other information including something that you are trying to remember. And 30 minutes later when you don't try to remember it anymore the brain has already unblocked all the other information and so it suddenly pops up in your head... |
The importance/advantages of military control over the Baltic Sea | If you're Sweden or Finland, you have two choices. Trade overland with Russia, or trade via the Baltic sea. Countries along the southern Baltic coast like Poland, Lithuania, Latvia and Estonia can only access the global economy via the Baltic sea connection to the Atlantic. In essence, whoever controls the Baltic is go... |
How and Why were there man species of humanoids very close together in history? Why are they now all extinct, and where did they live and originate from? | There is about 15 Homo genus that we know so far. Very close together in history? It depend what you mean. The olderst are 1.9 millions year old and the last to went extinct was about 40 thousand years ago. So near 2 millions years in difference isn't that close. Why are they all extinct? Some went extinct naturally li... |
How do products (like computer) keep track of time when they are shut down? | > Most computers have a small battery. In many cases, the battery is soldered directly onto the motherboard, but the battery is usually in some sort of holder so it is easy to replace. Computers are not the only things that have a small battery like this -- camcorders and digital cameras often have them, too. Just abou... |
Why are braces socially acceptable while other cosmetic procedures such as nose jobs are more often looked down upon? | Braces fix real problems. Other types of cosmetic surgeries like you mentioned seem to fix insecurities.Improperly alined teeth are more prone to cavities and plaque buildup than properly aligned teeth. Also, it can be hard to chew foods if your teeth aren't lined up to handle the pressure that your mandible exerts upo... |
Why some colleges require you to live on campus. | They can charge you room and board, make orientation easier, guarantee retention of the student who might transfer after their first year if the college isn't a fit because all of your friends go there who you met through living on campus, etc. If you move there to go to school and don't live on campus and wind up in a... |
What causes computer components to heat up during use? | Resistance. It's essentially the electrical equivalent of friction. Any current going through a wire is going to be less than 100% efficient - that loss happens as heat. |
Why is sneezing involuntary? | First we have to understand what sneezing does. It is an automatic reaction you develop when that particular area is stimulated too much at once. It's sort of a survival instinct to push out all the toxic air you inhaled and force-shut your eyes exposed to the same toxic environment. The reason we sneeze is because the... |
Why do spirits get better when aged? How does the taste change over time? | The main effect takes place while the spirits are stored in wooden barrels . They are actually dissolving stuff out of the wood, which adds flavors to the liquid. You might say they are using toasted oak as a very slow-moving spiceWell, "Better" is pretty subjective. They certainly taste different. Depending on the hoo... |
Why are YouTubers allowed to show video game content in their videos but not movies or songs? | The content is still copyrighted and video game publishers could have it pulled but they mostly chose not to because it's good free advertising for them. They aren't afraid of losing sales if someone sees the game online because people buy games to play them, not just to watch them.Cgp grey does a good video on copyrig... |
Why does the daylight on grey and cloudy days seem evenly dispersed across the sky when the sun is rising or setting? | The water droplets that make up the cloud refract light. And with so many little droplets, they are scattering light in all different directions. Light may bounce many times from droplet to droplet, eventually exiting at a point and direction that is very likely to be much different than its original path. As a result,... |
What are those black cables they stretch across the road? | They are counting cars and measuring how fast they are going for a traffic survey. If the traffic is heavy enough, they may install traffic lights or traffic calming devices like speed humps or chicanes, depending on the desired outcome.As I recall, they're used to measure the amount of traffic and/or direction of traf... |
Why do suit cuffs have five buttons on them ? Who invented this norm? | These are called surgeon cuffs , they were used on older jackets where surgeons in the military needed to unbutton and roll up their sleeves to work on patients. Then, the surgeons insisted on having them on suits as a status symbol so people knew they were wealthy doctors, and the trend stuck.You probably need to be m... |
Why do broken bones hurt when it rains? | When it rains, the pressure in the air will drop. This drop in pressure is often enough to cause physical changes in your body, such as the expansion of soft tissue and fluid around your joints. These minor changes may be noticeable in parts of your body that are already 'sensitive', like a broken bone or arthritic joi... |
What information did a fog horn actually ever give shipping? | Fog horns are placed in areas with a hazard ; a sand bar or piece of shore that juts out into the water. If you hear a foghorn, you're near one of the hazards. The information it gives you is: * There is danger nearby. If you can hear it, you're close enough to be in danger.* The direction of the danger. They ensure th... |
How do plants avoid pollinating themselves? | There are multiple techniques to avoid this. The first one that comes to mind is only activating one gamete at a time. A plant may choose to do it in 6 month cycles, say 6 months of pollen release with stigma closed and then 6 months of stigma open with pollen not being released . Plants also have chemical markers on t... |
Why aren't there websites for renting tv seasons like there are for renting movies? | Netflix as plenty of T.V series to watch. Like, what are you talking about really?The price per episode is too low already to buy, and not enough people will watch it in time for a rental to make sense. People tend to watch rented movies right then, but they usually watch TV shows whenever they get around to itBecause ... |
Why is the Sahara a desert when other places at the same latitude are tropical rainforests? | Look across the United States, if you draw a band across the US centered around San Francisco, CA. Coastal community, fairly foggy and cool year round. Nothing like the climate in Salt Lake City, Denver, and so on. Latitude, geography, wind patterns, proximity to the ocean plus others are all factors in the weather pat... |
Plato's Theory of the Forms vs The Third Man | Theory of the Forms is kind of like we have an idea of a perfect version of everything. Like the most perfectly pancakey pancake in the universe exists as an ideal of what kind of pancake we want all pancakes to be. The Third Man is a gotcha for this thought up by Plato himself, and later talked about more by Aristotle... |
Why are AI's so difficult to create? | > Why are AI's so difficult to create? Because we currently don't fully understand the nature of consciousness or self-awareness. It's hard to replicate what we don't understand. > Also - has an AI ever asked us a question in order to gain information it needs to solve a problem? No, because we've never created a true ... |
Why does being heavier helps a weightlifter to lift more? | Weight gets lifted by work performed by muscles. More weight requires more work. To do more work, you can use more muscle, or train existing muscle you have to perform work more efficiently. Given similar physiology/training, a bigger dude will have more muscle, and will be capable of performing more work, lifting more... |
if perfect white paint absorbs no lightwave at all, what is a mirror ? | This is a great question, both of them reflect all the light that hits them, but obviously they look different. A mirror reflects light a the same angle it that came in. That means when you look at a mirror all of the light came from only one angle and you see an image. If you are directly across from a mirror you see ... |
How does airplane internet (like Gogo wireless) work? | For Gogo, there's a 3G cellular antenna that sticks out from the bottom of the plane and a network of cell towers that point up instead of out. Other providers are satellite based and are much faster. [Engadget] did an overview earlier this year. |
How does a small accident (such as a fender bender) cause so much traffic on the highway? | Because once one car slows down a bit, the car behind that slows down a bit too.Came across this website that explains it pretty well a while ago:_URL_0_Most people that pass the accident will drive even slower so they can get a good look. The curiosity overcomes them. This is called rubbernecking.I would like to add t... |
Why do some bodily fluids glow under UV light? | > What possible biological/genetic/evolutionary benefit is there to having fluorescent molecules in bodily fluids? Just because a certain feature is present doesn't mean it's advantageous or that it has any particular evolutionary benefit/significance. The way evolution works is that features that are very beneficial t... |
Do those “credit card-debt forgiveness” advertisements legitimately work? If so, how? | I used one years ago, and it did work. But, it was also kind of a hassle. The way this one worked, they talked to all of my creditors, and made arrangements to help me pay them off as soon as possible . The debt definitely did not "vanish", but I paid it off a little quicker without officially going into default or ban... |
Why do we elect the POTUS using the electoral college and not the popular vote? | You have to begin by remembering that the Constitution is United States 2.0. That is why the preamble says "We the people, in order to form a more perfect union " United States 1.0, the less perfect union, was called the Articles of Confederation. It was the system created by the States as their first attempt at self g... |
How do cars not overheat when they cook outside in California/Miami/Texas heat for hours? | Running temp for an engine is usually around 195 degrees. Even the hottest of summer days does not approach that.The engine is a metal box fueled by explosions, its normal operating temperature is significantly higher than the ambient temperature, even if it is quite hot outside. That means that the engine can still du... |
Why is it so hard for Snowden to get out of Russia? | No, the USA won't shoot his plane down. The two biggest barriers are that he no longer has a valid passport, since the USA revoked it, and the USA will be pissed off at any country that takes him in. is *much* more important. is just a bureaucratic problem if the country has already decided it is OK, and it's easily so... |
ELI5:How can goverments protect us from terrorism without encroaching on our freedoms, invading our privacy, etc etc. | Not selling weapons to terrorists would be a pretty fucking good first step.There's no good answer. It's hard to do one without the other. If you figure out a way, let the feds know. As of now, unfortunately to find people who are planning a terror event but are law-abiding at the time, sometimes an invasion of privacy... |
How is raising the debt ceiling not just a cop out? | Remember that personal debt is not the same as sovereign debt. That being said, most countries do not bother with a debt ceiling. So it is a cop out but a pointless one. Most governments just borrow when they need too.Calling something a cop out means there's some bullshit happening and that the person/people accountab... |
why America's minimum wage is so low | The cost of living in Australia is much higher than the US. As a result the minimum wage in Australia will most likely always be higher to make up for higher prices on goods on services. There has been talk of increasing the US minimum wage but even with legislation to do so it would still likely be much lower than the... |
Why is it OK to eat some meat pink or bloody like steak but you might be ill if you eat pink chicken_ | Because beef has little supply, Of salmonella and E. Coli, It's easily cleaned, And very well screened, But raw chicken could make you die. |
Why are the bottoms of movie posters always the same font/format? | > The "billing block" is the "list of names that adorn the bottom portion of the official poster of the movie".[12] A billing block can be seen at the bottom of Reynold Brown's poster from Attack of the 50 Foot Woman , which is reproduced below. In the layout of film posters and other film advertising copy, the billing... |
How does sound move onboard the International Spacestation? | No, sound is not significantly affected by gravity. Sound on board the ISS is the same as it would be if the ISS were stationary on the ground. And as a side note, there is no lack of gravity on the ISS -- it's in *free fall* which creates an experience much like zero gravity, but as it's very close to Earth, there is ... |
why do we yawn? Does it serve a purpose or is it just something we do when we're tired? | THE TRUTH IS that we don’t completely understand why people, or animals for that matter, yawn. It’s widely assumed that yawning occurs because we are tired or bored or because we see someone else doing it, but there isn’t any hard evidence to support these beliefs. A yawn is an involuntary respiratory reflex, which reg... |
Why is it that when one looks at certain screens whilst wearing certain sunglasses, one sees patterns, shapes or what seens to be a blank or blacked out screen? | You own polarized sunglasses. Light travels as a wave of the electromagnetic field. When these waves bounce off of a reflective surface, like a car windshield, they tend to reflect so that the outgoing waves are all aligned with each other in one particular direction. This is referred to as vertical or horizontal polar... |
Why does changing the speed of audio affect the pitch too? | Pitch is a function of a soundwave's frequency as measured in hertz. Hertz is a measurement of cycles per second. If you take a soundwave of someone talking for 10 seconds and they are Ben Stein and talk in a monotone 150 hertz you have a soundwave that oscillates 1,500 times. . If you play that back at 2x the speed, t... |
How can people torture other human beings? Why aren't they stopped by natural feelings such as compassion, pity, and guilt? | Sometimes it's because of revenge. Imagine someone kidnapped your daughter and sold her away as a human trafficker, a lot of normal people would probably beat them to death. If it was something worse, I could see normal people torturing them. |
how do companies like Facebook make money without advertising before going public? | Mostly from going public, and selling advertising. Then can also make money from getting a cut of profits from games on the site , selling 'virtual goods' like paying $1 to send a virtual heart to someone , and maybe they also sell data about their customers to marketing companies. But that last one depends a lot on th... |
Why does water evaporate at room temperature? | Boiling is simply the temperature at which the bulk of the material is able to turn to vapor. In other words, the vapor pressure in the liquid equals the pressure from the air surrounding the liquid. The boiling point is *not* the temperature required for evaporation. If you were to examine the individual molecules tha... |
Why are sports players referred to by their last name? | And then bob passes it to Joe. Excellent reception as the other bob catches the ball', "Saying last names only is shorter and easier for the commentators rather than saying both first and last name. They also don't call them by first name only so that they don't mix the player up with another player who may have the sa... |
Why did frost only form on my front and left side windows, but not my right side? | i would guess it has something to do with the direction the wind was blowing. now im gonna type some random stuff cus the bots are fascist. did you know that if you were to add 1+2+3+4+5+6 all the way to infinity that the sum is actually -1/12? that sum is used in many equations in quantum theory and has proven to be e... |
Where does the saying "neck of the woods" come from? | > "Originally the neck of the woods was a narrow strip of woodland connecting a larger area of woodland." [Source]', "There is a Scots word *neuk*, meaning corner, and a similar word in Algonquin, *naiack*. No one is sure which, but it seems one of these evolved into 'neck' in this context. |
Why is there so much automatic opposition to Hillary Clinton? | From the left, there is a considerable sentiment that Clinton isn't far left enough - thus the support for Sanders and Warren. From the right, there's the analysis that she's a known quantity - and what we know isn't impressive. She's the wife of a popular politician who was essentially handed high offices where she di... |
What is the process behind counting TV votes? (As seen in talent shows, etc) | Normally you phone into a number which will play an automated message before ending the call. From the production side of things they can see the number of calls to each number. This is a pretty standard part of telephony technology and is used in virtually every call centre for recording stats. If required they could ... |
Does listening to music on headphones VS speakers hurt our ears more if played at the same volume? | The thing to understand is that volume of a sound is not an absolute constant but instead depends on how far away your eardrum is from the source of the sound; this makes sense, further things are quieter. If a speaker and headphones are emitting at the same volume, the speaker will do less damage because the sound has... |
- Linguistics - What's the difference between the gerund and the present participle? | Try replacing "sleeping" with something that is an obvious noun -- for example, bananas. In "your job description does not include bananas," bananas is clearly a noun. When replaced by "sleeping," it is still a noun -- it is the object of the verb "to allow." How about "Sleeping feels nice." Here, sleeping *feels*. Now... |
Area codes for US phone numbers | Area codes were first set up a long time ago. They originally told the phone system which wires to send the signal along - this was obviously grouped by city. Originally, the 2nd digit of all area codes was either a 0 or a 1 - that's how you can tell which area codes were made more recently - such as Palo Alto . There ... |
how do mirrors work? When a picture or video is taken down a mirror is put up almost instantly, is it just posted on a new site or is more technical than that? | It's pretty much that. A mirror bot goes to the original video site, grabs the streamed video, saves it locally, then uploads it to another website. The person or bot that rips the video off the original site must be rather crafty in the first place , but it's really not that complex. One of the other hurdles that must... |
How can the US declare no fly zones over other countries (like Syria) besides America? | It's pretty simple - because we can. The US has the most advanced and powerful air force in the world, which means when we declare a no-fly zone, the world knows we can enforce it. In international politics, the rules are usually written by whoever's carrying the biggest stick.They can by shooting down any plane that f... |
Why do we not have to actually "think" about moving parts of our body? | To put it simply, there is something called your implicit memory. These are things your brain learns that you really can not explain or talk about . The first few times you try to type on your phone, drive a car, or sign your name, it takes lots of effort to do it right. Over time, your brain learns the process and it ... |
Why is reddit so pro-gun when it seems to be much more liberal regarding other issues? | Well first as someone with left-leaning political views, I'd describe reddit's collective bias as more like “techno-libertarian”. It has views that, from an American perspective, align a bit more with Democrats than with Republicans, but from a broader perspective aren't really leftist. Second, there's a self-reinforci... |
How in the world did the NES light gun work? | When the trigger is pressed, the entire screen turns black for one frame , except any valid target on screen. The "gun" detects whether or not the part of the screen it is pointed at is dark or light, and the game gives you a hit or miss based off of thatIn addition to that, with many light guns, aiming the light gun a... |
Why would E4 reruns of How I Met Your Mother/Big Bang Theory play the opening credits 5 beats per minute faster than the original? | It's because in the USA tv shows have a refresh rate of 24 Hz, where as its 25 Hz in the UK. When U.S. tv shows are aired on UK channels, they are sped up slightly. So it's not just the opening, it's the whole show. Everyone has slightly higher pitched voices too. |
Why Do Men Have Sudden Clarity After An Orgasm? | Humans can have different "mental" states that correspond to some "brain" thing. One type of mental state is sexual. Our sexual state can be *aroused*. When it increases, so does the salience of that which makes us aroused. When we climax, the arouse-*ness* of the sexual state peaks and then sharply declines. In short,... |
Where is the live sporting event footage stored after they are aired? Do networks have all the footage, even the angles that weren't shown in a huge archive somewhere? | Depends on the networks. Sort answer is, yes. Some of it might be discarded later, but that is a matter of decision for the network or for the league. Basically, for all the footage the network didn't air, is it worth it for them to save it somewhere, or is it not worth the cost of saving the storage space. Storage is ... |
What was the purpose of the duck and cover method used during the cold war? Why would anybody think that would work? | Because it **does** work. Obviously not if the bomb detonates right on top of you, but a bit further from the epicenter, duck & cover would shield you both from the intense heat and from flying debris once the blast front passes over you. There are terrible images of Hiroshima victims who had patterns of unburnt skin o... |
how data gets sent across a computer cable. | Data in terms of fibre optic is sent through a refracting cable via a light wave that is either on or off. A device at the end of the cable that can determine whether the light is either on or off will interpret the data in binary. 101010100011100. If data gets sent in, say, 8 bits this will take 8 bits of binary at a ... |
How are screens able to scale correctly when using lower resolutions? | You're right - it doesn't scale correctly when the resolutions are not in multiples. This leads to filtering - for example, if the smaller resolution has two pixels side-by-side, one black and one white, the upscaled image will have three pixels, with extra pixels added in-between the two original pixels. The pixel may... |
If swelling is our body's way of coping with injury, why do we take anti-inflammatory medicine? | This commonly held wisdom is actually changing. There was a study done by a researcher named Lan Zhou back in 2010 that found that cells inflamed by swelling actually produced IGF-1, a hormone that is essential in rapid repair of damaged tissues. This benefit was negated if you used the traditional RICE protocol for ma... |
Why do we have moles? | Moles are skin cells that have grown really close together. They're precancerous so it's a good idea to get them checked regularly |
Earlier today I tripped and scraped my knee. The skin broke and bled but my tights remained intact. How does this happen? | The surface you impacted wasn't responsible for puncturing your leg. The force/friction was likely transferred through your tights, to your leg. |
What is the CISA bill that passed the House today? How will it affect Americans? | For the vast majority of the population, nothing will change. If a company is subject to a cyber-attack they can bundle up data and send it to the government so that the relevant authorities are aware of the details . It is possible that some of your data may be part of this bundle, and it may have not been properly an... |
if i eat 7000 calories in one sitting, do i immediately store 2 lbs of fat? | Your body has an upper bound on how many calories it can absorb in a given timeframe so no, you won't put on 2 pounds of fat .You can only gain 2 lbs of fat by eating more than 2lbs of food. See [conservation of mass]', "Your body can digest roughly meals of roughly twice the size you usually eat. . This means that you... |
Why does everyone care about carbon footprints? Aren't there gases that are much worse then carbon dioxide we should worry about? | Yes, there are other things people should be aware of, not just gases either. CO2 has been identified as a "greenhouse gas," and it's a product of combustion, which is the primary way most people get their transportation and electrical energy from. People believe that increasing concentrations of CO2 in the atmosphere ... |
Why and how does sodium/salt raise your blood pressure? | If the amount is small, the body uses the sodium to build muscles and nerves and to absorb nutrients. If the amount is too much, more than 1000 mg to 3000 mg a day, the blood vessels must take in more fluid. Extra fluid increases the body's overall blood volume. This, in turn, causes the heart to increase its work load... |
Why do tiny countries exist? | San Marino exists because the city gave refuge to the guy who was conquering the rest of Italy at a time he needed it so he agreed not to conquer it. I don't know it's origin, but Monaco serves as a hand tax haven for the wealthy, so there is little encouragement to invade. The Vatican exists to keep the church indepen... |
Why are blue eyes becoming increasingly rare in the U.S., even among Caucasians? | There are more than one combination of genes that lead to green or brown eyes while only one leads to blue . That means unless you have a population filled with blue eyed people, the more brown eyed folks having babies with blue eyed folks reduces the odds of each successive generation from having blue eyes. The genes ... |
How easy/likely would it be for the government to sell National Parks or public lands to private companies? | It'd be relatively easy. All it would take is an act of Congress to either repeal or amend the antiquities act and other statutes governing national parts and allow the land to be sold. It's *unlikely* that such a law will ever be passed. The benefits from it for the government are relatively small and there would be p... |
Is sugar really as addictive as cocaine? | The problem with sugar addiction is that people in many cultures show you love by pushing sugar at you in the form of pie or bread or mashed potatoes or whatever, and they'll say moderation is key. If someone is an alcoholic, you would NEVER dangle a bottle of their favorite drink in front of their face and talk to the... |
Co-ordinates. Regarding Geography and maps. | A minute is 1/60th of a degree. A second is 1/60th of a minute. They have nothing to do with timeThese words aren't about *time,* they are about *fractions.*The word "minute" means "quite small" and refers to 1/60 of something, like 1/60 of an hour or 1/60 of a degree . The word "second" means "do it a second time," wh... |
How do they make bamboo, which is circular, into flat flooring which looks like one piece? | It's large bamboo, cut into strips, planed or steamed into rectangles, then edge-glued into sheets. If you look you can see the dark patches which are the nodes in the original bamboo - think of the "knuckles" in a piece of grass, which is essentially all bamboo is. Those dark patches stretch across just one strip of t... |
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