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How does Rogaine work? | minoxidil, the active ingredient in Rogaine, is a treatment for a type of balding called androgenetic alopecia. A basic summary of how hair follicles work:Hair follicles have three phases, growth phase , involutional phase , and resting phase .Normally, a hair follicle will grow for 2-6 years. Then it will start shutting down, and finally stop growing. It stays in the scalp without growing for 2-3 months, then sheds the hair at the end and starts growing a new hair. The ratio of hairs in growth phase versus rest phase determines how thick the hair is. With age-related balding, the hair follicles spend less time in growth phase and more time in rest phase until there's no visible hair at all. Minoxidil stimulates the hair follicles to spend more time in growth phase to restore the hair. The exact mechanism for how it does this is still unclear.As I understand, the chemical was originally tested as a vasodilator for the purpose of blood pressure control. During the study they observed increased hair growth in many subjects. As a result, it is thought that when absorbed via the skin it dilates the vessels near the hair follicle, spurring hair growth by allowing blood and nutrients to the follicleIt is a fibronectin promoter, which means it triggers cells to produce and excrete fibronectin. Fibronectin is a protein that deals with connective tissue, and serves many different purposes depending on where on the body Rogaine is used. When used on the top of the head, it increases blood flow to hair follicles. When applied to a cut or laceration, it reduces healing time by 66%. When applied to "external organs", it can enlarge them |
Why can you only know an electron's position if you give up on knowing its momentum and vice versa? | Imagine taking a photo of a ball in the air. [In this photo], you can see exactly where the ball is. Its position is totally clear. But you have no idea of its movement. Is it falling down? Moving rightwards? No way to tell. [Now look at this photo.] You can tell by the blur that it's moving vertically, so now you know its momentum. But it's so blurry that you can't tell its position. Is it at the top of that blur at that instant? At the bottom? You can't tell. Taking a photo of a ball, you can't know its *exact* position or its momentum at the same time. Same thing. |
Who benefits financially from the anti-vaccine movement? | As a money follower myself, I'm here to say that no one benefits. Not financially, and certainly no one's health benefits. |
Why is the term Antisemitism only applied to the Jewish people when Arabs are also a Semitic people. | I just came to say I think it's weird Christianity wasn't included, in that it's also a semitic religion. |
Please ELI5: Corporate raiders | They make money by taking companies that are being managed inefficiently . In some cases acting in the best interests of the shareholders could mean tearing apart the company, firing employees, or more specifically, executives would lose their jobs. Even though the methods of the corporate raiders seem harsh, they are essentially preventing the company from throwing money away. You can argue that it is not worth the jobs lost, but then you've entered into a political debate . |
When I have nosebleeds, why is it only on one side? | When I cut my right hand, why doesn't my left hand bleed? The inside of your nose has a wall of cartilage running down the middle of it, called the septum. When you get a bleed in your nose, it is only going to come out of one nostril, because the septum prevents it. If you always seem to get a nose bleed on the *same* side, like, it's always from your left nostril, then you may have a weak blood vessel near the surface of the inside of your nose. If it bugs you, it might be worth seeing a doctor about it. A doctor could cauterize the weak blood vessel for you. This will create scar tissue and will hopefully prevent future bleeds. |
Why can dogs and other animals just willingly eat disgusting things like poop, own vomit etc. Is it just a psychological barrier because we know how gross those things are? | I had a dog once.. toy poodle.. but we had flea poison put down on the carpet for the cats.. the dog promptly went around licking up the flea poison.. then vomiting it all out.. then licking up it's own vomit.. then vomiting because it was poisoned again.. then licking it up. And so on. That was one dumb dog. Also had dachshunds for a awhile. Those little bastards are like four-legged vaccum cleaners.. they will scarf up any edible object that hits the floor longer than half a second. You have to be careful with those dogs because they will literally eat and eat and eat until they can't move anymore.I remember when reading *Gulp* by Mary Roach that most mammals eat poop at some stage of their lives. |
Why is raising the minimum wage to 15$ something people want? Wouldn't that just make, for example, a subway sandwich 10$ instead of 5$? | They're linked, but it's not a 1:1 relationship. There are plenty of products where the minimum wage component at point of sale is only a small fraction of the cost, and so an increase in one will lead to a much smaller increase in the other. Minimum wage simply isn't the dominant factor in pricing. You can tell this because cost of living has already skyrocketed even though minimum wage has remained stagnant and effectively decreased over time. History shows again and again that raising the minimum wage does not lead to the disasters that rich investors warn about. It may cut into their holiday bonuses a bit, but most of us won't be affected all that much. |
Why do intelligent people join cults? | Having knowledge is pointless without wisdom. Just because someone is smart is some things doesn't mean that they are in all things. |
Why does a videogame at 10 FPS look like it's at slow motion but a video at 170,000 FPS looks like slow motion too? | For a video to be played back at normal speed, there's a certain amount of time that should pass between each frame being displayed. When a slow motion video is recorded, the time between each frame is a very small fraction of a second , but when it's played you increase the time between each frame . This means the video takes longer to play and appears slowed down. A game might be programmed to draw a frame, and then calculate a new one to display set 1/30th of a second after. If the computer isn't fast enough to work it out in 1/30th of a second, then you'll see a seconds worth of video over a longer period of time than a second, giving a similar slowed time effect. |
Why can't the free market solve our cable monopoly/net neutrality issues? | Naturally, free markets gravitate towards monopolies. The assumption of perfect information means that in perfect competition, everyone charges the same price. But if someone enters the market with a lower price, then everyone goes to him. On top of that, the already mentioned high cost of building a network is a high barrier to entry since you have to lay your own cables. In short, typical market solutions to cable issues doesn't work. Hence the need for government subsidized and regulated monopolies like PG & E. |
How do zip files compress information and file sizes while still containing all the information? | Compression algorithms looks for patterns. These can be groups of letters, phrases or repeated bytes. Text can be compressed quite well, there are only roughly 64 characters that are used, while a byte can hold up to 256 characters . There are also common letter/word combinations, q is almost always followed by u and 'the' for example. Truly random data cannot be compressed as there aren't any patterns. That's why it is better to compress first, then encrypt. Trying to compress an already-encrypted file would not work very well as encrypted data looks random. |
Why is the UI theme of many popular computer programs/apps (MS office, Google, etc.) extremely "white"? Is it functional, or simply to look modern and cool? | It's fashion. In the same way waistlines go up and down, certain color and other design elements come to the fore, become normal, and eventually make way for the next best thing. Right now, we're on light and flat. But before things were glassy and bright. If you can figure our what the next big thing will be, you stand to make a fortune. |
Are all creatures symmetrical? If so, what is the evolutionary benefit to this? If not, what is the creature, and why did it evolve that way? | Some crabs are asymmetric, they will have left and right claws that are shaped differently and for different purposes. I would imagine symmetry is a thing in general for redundancy and balance, it's way easier to fly/run if your body is naturally balanced in the middle. |
Why is it illegal to audio record teachers' lectures and take pictures of the board? | In some states, it is illegal to record someone without their consent. In others, it's legal as long as at least one party knows about the recording. |
Why do some people pass out at the sight of their own blood? | When you see your own blood, especially in large amounts, you become aware that you are , indeed injured. I feel that it works the same way with hands. When my hands are injured, even if its just a small cut, I find myself dizzy and nauseated, whereas large injuries on other parts of my body don't affect me anywhere near as negatively.OP, this happens to my dad too, who is also a tall, well built, park ranger, manly man type. Good luck with your desensitisation, and be careful! My dad has fainted and nearly impaled himself on stuff :SWhat if you were able to watch a video of yourself donating for example where you pass out? Would you pass out then?The point of irrational fears is that they aren't rational. It's just phobia. Something happened which wired the "blood" information with incredible fearHad to resubmit this, my earlier submission was removed because I guess I made it too personal. |
What exactly would have to happen in order for a man-built artificial intelligence to be considered "alive"? | Depends on how you define something to be 'alive'. Scientifically speaking, we say something is 'alive' when it is able to make copies of itself. So, if an artificial intelligence is able to code another AI without human instruction on how to do so, then we could say that it is technically alive. |
Why is suicide (or attempted suicide) illegal in so many countries? | My understanding is that it's illegal to prevent someone who attempted and was stopped by emergency responders from turning around and successful suing those emergency responders. |
Why the molestation of Grace Dunham by her sister isn't getting the same sympathy as the molestation of Dylan Farrow by her adoptive father. | If anything, Grace Dunham should be getting more sympathy. We know for a fact that she was abused because Lena Dunham freely admits to it. With Dylan Farrow, on the other hand, no one really knows for sure what happened because it's all hearsay. |
Why does the sky turn green when a tornado is about to happen? | It's *not a myth.* It's a completely explainable situation. [This explains it fairly well, if you're wondering where I get this information from.]. Pretty much what happens is when the sun is low on the horizon, the sky appears to be red due to the refraction of the sunlight in our atmosphere. The storm cloud's water particles will refract blue light for us to see. When you light up a blue object with red light, they turn green. So, we see green light. It's not necessarily a warning that a tornado is on its way. It's telling you that the cloud is extremely tall, and as a result, could have hail in it and is probably going to be a really strong storm, which *could* produce a tornado.So to sum up what others are saying here, green clouds are associated with severe storms, because it takes a high moisture content and a really big cloud to get a green cloud, and *sometimes* that severe storm will give us hail or a twister. But if you see a green cloud, the most reliable prediction you can make is that it probably means lots of rain is on its way, *maybe* something worse.The sky can go really green when there's an aurora as well. I lived very northernly in Scotland and we had them a lot. It's spectacular! |
If the NSA can see everything (and assuming all other agencies can too) why don't they jail people who download illegal content off the internet? | Because computers are not lawyers! Everything you can see through your internet browser is actually downloaded from a server to your local computer, and rendered on your screen via your browser. That's how the internet works: files are always and only being either downloaded or uploaded. Now say I download a image file that's entitled *1.jpg*. Does the computers comprising the internet know what the visual content is of that file? The computers know the bits that comprise the image, but even the most advanced computer systems can barely start to visually recognize the content of the image. So, now say that *1.jpg* is a picture, taken by a tourist, of the Mona Lisa. There are people that would assert that images of the Mona Lisa are copyrighted, but this is the area where copyright is debated by lawyers. Luckily, computers aren't lawyers, and serve the JPG file when requested. Then the NSA might know that a browser that you regularly use downloaded a jpg named *1.jpg* - but the NSA does not have any real-time system to determine the copyright concerns, claims, or infractions of the content of *1.jpg*. * |
How do you have a statistically better chance winning the lottery with a quick pick the bigger the amount gets, if the pick is just random numbers anyways? | I think because people tend to pick numbers that's aren't really random. It increases the chance that someone will share your numbers with you so less chance of the lottery being won overall but even if you do win you'll be sharing the prize |
why can ants drop so many feet and walk off unharmed, but if humans drop the same height proportionally, they're dead? | The more you weigh the faster your terminal velocity is. Or max fall speed. Ants weigh so little that their max fall speed and air resistance don't allow them to fall fast enough to crush their ridged exoskeleton. Humans however weigh much more and are aero dynamic due to our upright posture. Thus our max speed is high enough to break our bones and cause trama. Heavier things fall faster and hit the ground harder than small things. Fun fact cats can not die from falling long distances because they can flatten out and use their bodies to create enough air resistance slow down and to survive. |
That voice in our head when we read. | I always read things / inner monologue my thought in H Jon Benjamin's voice. Not sure why.. |
Why do people often worry that rape victims are actually lying? | Because accusing a person of rape is tantamount to essentially doing the act. For an example, there's that Lacrosse case back in 2006 which got dragged through the national media circus and ended up not only completely false but ended up basically destroying the accused. I've never seen it as official policy, though.Is it assuming the "victim" is lying or is it a policy of assuming the accused is "innocent" until proven guilty? |
Why are young kids often repulsed by their peers of the opposite sex? | The best answer I have heard , is that is has to do with gender identity development. Very young children, actually do play with the opposite gender. However, then children begin to develop rigid gender roles , and so children then associate with only same gender children and their appropriate games. Then as children become older and have a better sense of their own gender, their understanding of gender roles become less strict. |
How do cemeteries make money once they've sold off all their plots? | In parts of Greece your payment only buys you three years. If no one pays rent on your plot after that, they dig you up and throw your remains behind a wall in a room, so they can sell the plot again. You do also have the option to pay much more and buy the plot permanently, but many people can't afford to do this. This is a pic I took in a small village church in Crete _URL_0_ |
Why do you have to take antibiotics exactly as directed for the full length of time? | > If it says take 4 times a day, why can't you take it 3 times a day for longer? This has to do with how long the drug stays in your body for. As soon as you take a drug your liver or kidneys start to get rid of it. If it's meant to be taken 4 times a day, then after 6 hours or so the concentration in your body will not be effective enough to work. |
If everyone can have a gun in the US, how do controversial persons (e.g. politicians) not get shot? | First, let me just point out that politicians *do* get shot. This has even happened somewhat recently. Now, lets break this down a little. First, not everyone who owns a gun kills people with it. There is a *lot* of gun violence in the US, but it's not a dystopian anarchy here. Second, politicians are a small segment of the population, so statistically less of them will get shot at. Third, politicians tend to have really good security. And, as I said, politicians do get shot. Ask Gabrielle Giffords. They're just not a really easy target, usually.Not every CAN legally own a gun. And we are not a country of lunatics. And we have decent law enforcement. And most people would do the right thing and try to stop someone who was trying thinking about it. |
Travelling from Canada to Asia. Why can't planes fly west instead? Wouldn't it be faster? | The direct path goes via Alaska, Kamchatka, Sakhalin, North Korea. While Alaska is fine, Russia [doesn't like] planes flying over their islands, and I can imagine that North Korea is avoided as well. There are many flights going a bit more south than the direct connection, however. Flying via the middle east is way longer than necessary. It might be cheaper, but that depends on the specific flights. |
Why are glasses so associated with nerds? | I'm pretty sure that claim was last valid around 7 years ago. At least that's the last time I think I was bullied for having glasses. |
How are near-century old buildings still safe? Was structural engineering knowledge the same then as it is today? | Older buildings certainly present hazards, which is why the ESB has been renovated many times in it's history. Our knowledge of engineering was pretty solid back then, and Manhattan is a very effective place to build large buildings due to the stable bedrock beneath. |
What happens if a rock climber reaches a point in their ascent where they suddenly run out of options to continue but can no longer retreat? | It's certainly possible to run into a situation where you can't advance your planned route and you can't go directly in reverse. Normally in these situations, you have 3 options: find a different route than planned, make your own route, or rely on your safety equipment to get you back down. If all that fails and you don't have safety equipment, you call in backup and try to wait it out. That's your last option, other than falling. You'll rarely see someone try climb without ropes, pitons, etc. unless it's on a route or in an area that they know well. The brash and underprepared tend to weed themselves out of the sport, generally by taking some hard knocks earlier on and either leaving or learning from their mistakes. P.S. If you're actually summiting a mountain like Everest or K2, you're going to be loaded with equipment not just to survive but to create and maintain the routes along the mountain. In a sense, there are no maintenance people on a mountain climb, because everybody's part of the maintenance crew - checking pitons for grip, ropes for wear, etc.The manga : the climber goes extensively into detail about free soloing and it is also partly about a famous free solo climber who did amazing feats, i would definitely recommend checking it outInexperienced "climbers" getting themselves into a situation where they can't move forward or retreat is one of, if not *the most*, common causes for rescue call outs by local fire departments. |
NASA says the world is "running out of water." Where is it going? | Into the ocean, Downstream, it's getting contaminated, people are using wells at a higher capacity than they can refill. As the demand for water increases, people drain aquifers faster than they can be refilled. Aquifers get refilled through rain and snow melt mostly, so with climate change becoming more and more apparent, places that used to get tons of rain often now get less and the aquifers do not refill like they once did. Water is a weird thing, there is a lot of it but most of it isn't drinkable. |
Why is the modern mindset to extend a human life as long as medically possible without any consideration of the economic, societal, and human cost? | It isn't so much 'extend life as long as possible', it's more 'stop people from dying'. We just keep thinking up ways to prevent causes of death. You can see a similar thing when people will spend massive amounts of money and time to save the life of some stray puppy, while countless other animals are being put down. It's in human nature, if we believe we can save a life, we will, however illogical it is.Humans are social animals, so most of us care about what happens to those around us. But we are still animals, so most of us care about our own well-being more than that of random strangers. |
If Uber is taking so much business away from taxi's since it's what people prefer, why don't the taxi drivers just become Uber drivers? | Because uber might be nice as a side earning but trying to make a living wage just by being an Uber driver ist not so easy. This is one of the main reasons Uber is so cheap, the people do it mainly for fun and don't need that money to pay all their bills. |
Why it is easier for me to drum my fingers from pinky to thumb rather than the other way around. | I think because the twisting motion you make when you move then from pinky to thumb is more natural. If you twist your wrist that way, you can easily turn your wrist 180 degrees, which may relate to it feeling more natural. If you try to turn your wrist the other direction, toward your thumb you probably can't twist at all. That motion is similar to the motion of your fingers when you drum them across. |
What makes a Special Forces soldier *that* much better than your average infantry soldier? | Everyone has already commented on the selection, training and talent of SF. I thought I'd chime in with a slightly different perspective. If your an officer in the military and you need to plan missions, it helps to know the capabilities of the units you are directing. Having a special forces unit enables much more specific control over how you approach objectives. A simple situation might be that you need to get some soldiers from A to B in a certain time frame; your regular infantry will take 5 days to close that distance because they are not as fit and have a variety of support equipment they need to bring with them. On top of that because they aren't that well trained/disciplined there is some uncertainty, maybe it will be 4 or 7 days for them to reach the target spot. With the SF the officers could be much more certain about their units capabilities and specify to their command that they could move men from A to B in exactly 2 days. One other thing I haven't seen people mention is personality. Generally they can be selective enough to decline exceptionally strong/fit/talented people on the grounds that they might be hot headed or disruptive to a unit. An example could be you need a group of soldiers to make contact with a local group of freedom fighters and offer them training to use them in an upcoming campaign or to destabilize a bigger threat in the area. You need a soldier with patience and leadership to be able to not turn that encounter into a disaster. |
Why haven't there been "Lincoln-style" deaths in the past few years? What keeps an unpopular public figure from being killed by some stranger in public? | These days the crazies go for a high body count rather than a noteworthy single target, so we have mass shootings rather than assassinations. That and people just aren't reading Catcher in the Rye any more.High level political figures travel with extensive security to keep the lone nutjobs away. Before Obama attends an event the building is inspected and secured by the secret service. |
Why Games Install DirectX For Every New Game? | DirectX is a set of tools released by Microsoft that help programmers use your computer efficiently without having to know exactly how it is set up. The game programmer can just ask Direct3D to draw a yellow cube, instead of having to have 15 different yellow cube drawing bits depending on your computer. The programmer also benefits because he knows that the DirectX bits won't be the cause of any errors; it was likely him telling D3D to draw a red cube, instead of D3D changing he color.The way that DirectX does this is through *dynamically linked libraries,* or DLLs. A DLL is a blob of pre-assembled code that other programs can use without having to have their own individual copy. When you install DirectX, you are actually installing a bunch of DLLs, so programs don't have to have their own individual copies of DirectX inside the .exe. There is a problem though. There are dozens of versions of DirectX, and a game is compiled assuming that the version the *programmers* had is the one *you* have. If you have DirectX 9.0.c, but the game needs 9.0.a, then the program will crash. DirectX attempts to solve this by allowing multiple overlapping installations, letting you have 9.0.c and 9.0.a *at the same time*. unfortunately for people installing things everywhere, the only way a game company is allowed to install the version of DirectX they need is to use the installer that is bugging you so much. This *does* have some benefits though. By using the installer, the game is *guaranteed* to have the DLLs it needs, since the installer will check and fix your copy of DirectX if it happens to be broken. |
Why do scientists say that there has to be water on a planet for there to be life? How do we know that aliens need water to survive? | Well, mainly because all life **we know of** requires water, and everywhere we have found water, we have found life. It could be the case that there are different kinds of life that don't require water, but that would turn our search to looking everywhere for something that we have no knowledge of, which is sort of impossible. |
How do stoplights know I'm there? | > And why do they sometimes not know I'm there? In addition to what others have said, there is a certain timing to the censors. So if you get on the censor a second too late because the light changed for a car ahead of you and didn't quite detect you when the light changed, there are times that you have to move your car around, even an inch to reactivate that sensor to change the light. |
If fire can't happen in space due to the lack of oxygen what happens if theres an explosion (what would it look like)? | Explosions can happen through things violently breaking apart. Fireball explosions need oxygen. But other chemicals can react in other ways, and the super-expansion of frozen water can create steam explosions. So for example if an asteroid were to hit a comet, and its just rock and ice, there would still be an 'explosion' and there would be heat and light - but from the force generated by the collision and from the steam explosion from superheating the ice and having it violently propel rocks around. So it all comes down to: what is exploding and how? |
Why doesn't the US just bomb the oil production and cut off ISIS revenue? | I thought we didn't want to bomb the oil fields because it was Iraq's main source of cash for their economy and we didn't want to destroy a country we basically had to build from scratch after getting rid of Saddam? Also bombing these oil fields would destroy them, nothing would be salvaged and someone would have to completely rebuild them from scratch. |
Pharmacists, why do they need a PhD? | They don't just dispense medication. They also prepare medications when necessary and have to be able to understand and advise patients on the effects of drugs, potential side effects, and possible interactions with other drugs that they are taking. In order to do this effectively they have to have a complete understanding of how various chemicals interact with the body and the mechanisms by which they produce their various effects. To gain the knowledge required to do that effectively, and not give someone two different medications that could possibly kill them, they require a good deal of education.Pharmacists earn a Pharm.D., a PhD is more research based. |
There hasn't been a group so universally hated as ISIS since the Nazis. What is keeping international intervention from a lot of countries? | Apathy. Nobody likes ISIS, but hardly anyone besides those in the region are directly affected in their day-to-day lives. Without a tangibly obvious reason for people's attention to be fixated on the situation, it's just lost among the huge amount of news stories sensationalizing violence in poor regions. |
Why don't we build a manufacturing center in orbit or on the moon that allows us to build and launch cheap space craft? | Bottom line is, money talks. Right now, launching any sort of mass into orbit is bloody expensive. IIRC the space shuttle spent $10,000 per pound to get into low-earth orbit. Private space enterprises like SpaceX are dropping prices, but it's still too costly to do. Just coming up with the overhead for that sort of thing requires lots of faithful investors, which requires a very solid business plan. Problem is, we don't have a lot of experience in space to really know what to do once we're up there. True, there's research and telescopes and all that jazz, but Universities can't front billions of dollars for this project. You need something commercial. There are lots of plans for extraterrestrial mining , but now you've committed yourself to even more overhead for an entire mining or exploring operation. Not that I'm saying that this isn't feasible by any means, you can easily make a handsome return on your investment if someone actually committed to this architecture. But right now the technology isn't there yet. In 20-30 years or so, though, I would not be surprised if we had some sort of commercial space center in orbit. SOURCE just graduated in aerospace engineering, wrote a proposal outlining this for our senior project |
The difference between a fee antivirus software like AVG, and a paid antivirus software like Norton 360? | For what its worth, from an Enterprise level, a commercial application adds administration functions. Distribution of updates can be controlled, then you have reporting alerting you to server / pc's requiring updates / not reporting, through to virus notifications. Also servers running Exchange will have different needs for AV scanning. Further to this, you also get support from the AV software vendor. Companies like McAfee also offer firewall and encryption products. |
If you are driving at a legal speed and a person intentionally jumps out in front of your car in a suicide attempt resulting in their death, what criminal charges could/would you face? | Totally anecdotal, but I actually know someone who was the driver in a case like this. Nobody really knows if the pedestrian was suicidal or just stupid, but she stepped into the road in front of my friend and he couldn't stop in time. He was not charged with anything, this was in the USA.Motorists who kill pedestrians are rarely charged at all. Look online and you will see various citations for statistics for local areas, to wit: ". Out of 1,298 fatal crashes in NYC between 2008 and 2012, just 66 drivers were arrested under vehicular homicide laws—about 5%. " _URL_2_ "According to a recent report by the League of American Bicyclists, barely one in five drivers who end bicyclists’ lives are charged with a crime. " _URL_2_ If you wanted to kill someone, this would be your best shot at doing it. So, to your question, probably no charges at all, especially if there was some evidence that they person jumped into the pathAnother annecdotal story, when my brother was in college a teenage boy ran in front of his car, my brother was unable to stop in time and the boy died. The kid's friends admitted to the police that they had been playing "chicken" . There was an inquest, they determined from the skid marks that my brother was not speeding and he was not charged with anything. The boy's family actually contacted him to let him know that they didn't blame him in any way, which was incredibly kind of them. |
What is so different about the antibodies / antigens across different species (e.g. Canines vs. Humans) that we have different blood groups for each? | To be honest, there are not a lot of differences. Dogs have a group of antigens known as the DEA system, meaning the best defined group of dog red blood cell antigens. This could be compared to the Rh system in humans. Exposing positive cells to a negative person won't necessarily be bad the first time, but the next ones will not be so great. Dogs form antibodies to these antigen groups based on exposure, just like humans after exposure to the D, C, c, E, and e antigens of the Rh group. Cats have an A/B/AB system, similar in some ways to our own ABO system. Cats develop these anti-A and anti-B antibodies naturally, without any transfusions or previous exposure. People are the same with ABO antibodies. They develop naturally, after exposure to certain things in the environment that share a similar structure. Names for the groups are chosen by those who discover them, usually relating to the case where they were discovered. This is definitely true of both cats/dogs and humans. Humans have systems like the Duffy and Kidd groups, named for the patients who were discovered to have these antibodies. Cats and dogs have things like the Mik and Dal antigens, named for a cat named Mike and a study with Dalmations. |
If I leave the Milky Way, am I immediately in another galaxy or in a big empty part of space with different galaxies to choose from? | You're in a big lot of nothing. Consider how much it took to get to the Moon from Earth. If you scale up the Earth to the Milky Way , there's about the same amount of relative space between the Milky Way and Andromeda galaxies. It's mostly nothing out there. Put another way, you are more likely to be in sight of a boat from a random point in the ocean as you are to be in a galaxy in a random part of the universe. |
How are high-profile, open marijuana users like Seth Rogen, Doug Benson etc. not pursued by police for breaking the law? | Certain high-profile marijuana users, like Wiz Khalifa and Willie Nelson, ARE pursued by police. It's always a slap on the wrist. |
What I will have to do on Oct 1st with the Affordable Healthcare Act/ Obamacare | What you'll have to do depends on whether or not you have insurance now. If you have coverage, you'll have to do nothing. If you don't, you can theoretically go to _URL_0_ and buy insurance. The insurance will still be provided by a private business despite the government making it sound like they're providing health insurance. If you don't want to use the government's program you can still call any insurance provider in the state and buy coverage on your own; this will likely be cheaper than the exchanges. If you're in Ohio, you can give me a call. I'm a licensed agent and I'll be happy to hook you up :) |
Why do animals (including humans), in general, become less playful as they grow older? | As a human animal, I have become less playful for the following reasons, in decreasing order of importance: - Tempus fugit. As you get older, you have less and less time because you have more and more obligations to other human animals.- The Man grinds you down. I spend much more of my time worrying about mortgages and bills and life insurance and roof leaks and car repairs than I did when I was younger and more playful.- Shit hurts. When you reach a certain age, and that age varies from person to person but tends to fall in a similar range, it's harder to get around. Knees hurt, back hurts, shoulders hurt. You can still do stuff you really want to do, but you have to marshal your energies. You're on a physical budget. You can do this _or_ that, but not this _and_ that. You're probably already planning a bike ride or something for the weekend, so an impromptu touch football game is less interesting because you might end up tired or injured for that thing you really want to do. |
What are the arguments for the non-existence of reverse-racism? | A couple people like /u/dsampson92 and /u/RabbaJabba have answered fairly well, though they do not subscribe to the view. Though it will be in the minority here, I'd like to present a defense of this definition of racism. Defining racism along the lines of oppression and power dynamics works to make the word have meaning in a way that more accurately reflects the way things function historically/socially. Because race relations are asymmetrical, and in the USA at least, that asymmetry has fairly consistently resulted in one particular group retaining an oppressive status, it makes sense to use language to reflect that historical reality in how we think and talk about race now. To use the same word to describe directionally opposite attacks conflates two situations that are extremely different in terms of their social implications, systemic power dynamics, and historical lineage. A summation of this argument could be, Using the same word to refer to two distinct things confuses the issue. |
Why is Washington DC such a dangerous place to live when it's the capital of America? | It's the 16th most-violent city in America. Less dangerous than Detroit, New Haven, and Little Rock. I think you're dealing with stereotypes from the 80s: _URL_1_ |
When we feel wind hitting us, what are we actually feeling? What is actually hitting us? | Wind is when air from high pressure areas is moving towards area with lower air pressure. If the air pressure in the troposphere was universal throughout there'd be no wind. |
Why is Oman NEVER in the news? | Oman, ~~Yemen~~ & the UAE are just small, rich countries on the edge of the Arabian peninsula. Money tends to breed stability. They're nowhere near Israel or the Islamic holy cities. They're just happy to be left alone. |
Why is TOR so much slower than other internet browsers? | Imagine yourself in a library. You've just finished studying and you're getting ready to walk to the elevator, when you notice a group of frenemies sitting at a table next to the main walkway. If you take the direct route, you'll be forced to make small talk. So instead, you go out of your way and walk through the book stacks so they can't see you. |
Why are there still a few operating Blockbusters, and where does the money that they make go? | Internet infrastructure is still not that great across large swaths of North America. Canada and the United States are huge countries that have a relatively low population density. In rural areas, or more remote areas like Alaska, it may not be economically feasible for ISPs to run the expensive high capacity fibre lines necessary for broadband. Even sold at cost, the monthly prices would still be too high for most people to afford. So they don't bother. So if you live in a place like that, and your pretty much limited to three options for your internet. Cellular broadband, which is expensive. Rural DSL/Dial-up, which is slow. Or satellite internet, which is slow and expensive. None of which are suitable for streaming high quality video. Sure there's pay-per-view if you have satellite TV. But that's only new releases, and not everyone has satellite. So video rental stores have survived by carving out a niche in these areas. You go a couple hours north of a place like Toronto and every little general store has a video rental section. Blockbusters will survive in more populated rural areas. Especially tourist areas. |
Why hasn't free, plentiful, sunlight become a part of solving our energy problems? | Sunlight is unreliable, and batteries are inefficient. There is no known technology that could store enough power to last a week's worth of overcast weather in the winter in Calgary or Oslo. Until the storage problem is solved, solar will never be a primary power source.ELI5: It cost a lot to make the panels and the return on investment is not great.Solar panels are not efficient enough yet to warrant the expense required, both in terms of dollars and space, for it to be a significant source of energy. While they're growing more efficient they're not yet to the point where it would save enough money in a reasonable enough timeframe to make it useful. For them to get more efficient, they'll need to be subsidized by larger public works projects. Governments can't yet justify donating that much land, however, so most of what we see at this point is on building roofs and so on. Government investment in it is at risk given our political situation, as people that don't believe in global warming don't think it's useful at all. Given that there's quite a few of these folks in government, I don't think you could count on investment from the government to take development anywhere. None of these problems are insurmountable - but they have slowed progress down. |
How affirmative action works. | Affirmative action is a way of achieving something like [the second picture here] As much as we might WISH for a world where everyone starts on even ground, we're not in that world yet. So we compensate to be sure that even if we can't *start* from the same position, everyone gets a chance to be part of the game. And affirmative action *isn't* solely based on race. Race is the most visible subtype, but there are equivalent programs for people from impoverished backgrounds, programs for people with disabilities |
Why have we found so many more dinosaur bones from hundreds of millions of years ago than our ancestors from over 40,000 years ago? | Humans like areas near volcanoes, rapidly eroding mountains, shifting rivers, coastal boundaries and other areas that are considered topographically rough. They are useful for shelter, tools and resources but not generally good for preserving fossils or other evidence. _URL_0_ Now we are using landscape roughness to try to find our ancestors ' bones. The sea level has widely fluctuated throughout human history, erasing any evidence of coastal dwellers.We know of at least 800 species of dinosaurs and they were present in large numbers over most of the planet which they inhabited for 165,000,000 years. Anything that could have looked like a human being only evolved 100000 years ago and there were few of them so finding fossils of something which was around for a short time and in small numbers is harder.Because they were much, much larger. Their bones were more likely to sit where they were after death as they couldn't be dragged away. Our ancestors were apes. Things ate us, dragged bones away, and buried the remains. |
Why do India and China have such massive populations? How did that happen? | According to some people, lack of education gives less opportunities to enjoy all the varieties of life. Having less education often means earning less money and having less free time. So less educated people are more likely to enjoy life by having special hugs with romantic partners. I'm not sure I agree with that, however.Sex. Lots and lots of sex. Like, nonstopPre-independence birth rate and death rate, both, were high. Then came medical advances that slowed down the death rate, but not the birth rate. Boom- population explosion! Birth rate in India has gone down over the years but due to social stigmas attached to family planning, ignorance, attitudes like more children mean more hands to help etc, it is not as low as to control the burgeoning population. |
how are some people able to smoke for 40+ years without developing lung cancer or any other serious health effects? | It increases the chance of it occurring not making the occurrence certain. There are probably tons of health issues that he may have as a result of it that you wouldn't attribute directly to smoking before. There is also the possibility that he is that one in a million person who has some weird random immunity to it as well. |
now that the IMF has concluded that Greece's debts are unpayable, what will happen to them? | If the rich Greeks paid their tax bills it would help greatly. They owe billions. If the Greek government isn't willing to crack down on tax evasion, why the hell should we be interested in helping them? |
Why do we sometimes get tiny white blobs/dots in our fingernails? | IIRC the small white blobs, known as punctate leukonychia, are almost exclusively due to nail injury as others have noted. States in which the body doesn't have enough of a certain protein , such as in chronic liver disease or some kidney conditions , can lead to massive whitening of the nailbeds. The same conditions, as well as about 70 other issues like arthritis, can lead to horizontal bands of whitening in the nails . As far as why this happens, the suggested reason seems to be decreased blood flow in capillaries in the nailbeds - they're compressed by excess fluid which comes about because the blood protein levels have decreased. |
Why do you get really bad cramps before diarrhea? | I think twice now I've had severe sweatiness and dizziness followed by rapid squirt gun style shits. I've always wondered wtf is going on. The first time I was getting ready to call 911 because it was overwhelming and happened out of nowhere. Then I shit and felt immediate relief. Weird.the sweaty, clammy feeling is called a vasovagal response. This is a sudden drop in heart rate and blood pressure and can be caused by a large number of things, one of them being straining during a bowel movement. As an aside, you are not alone! This happens to me, and it is very not fun. |
Why does it feel almost instant from the time you sleep to when you wake up? | The short version is because when you sleep your brain lose ability to perceive time - if you don't remember what happen during the sleep then you cant feel how long it was |
Can guys really not stand looking at other guys dicks on porn videos? | The most popular porn involves visible penetration. The people most likely to watch porn are male. Your boyfriend is an outlier. That's not to say there's anything wrong with him. He just does not represent men as a whole in this particular instance.I suppose it depends. As a gay guy, seeing boons or a vagina in anything g I watch puts me off my stride and makes me feel a bit unsettled. As a straight guy, I would imagine he should be able to see himself as the guy in the video? |
What's that weird tingling sensation I feel in my crotch when I'm on a roller coaster or swing? | It's called the whoop-whoop factor. When you're in a potentially dangerous or precarious situation, your balls will basically pull up to be close to your body, a phenomenon which can cause some tingling or other sensations.Are only men experiencing this feeling? I recall talking with girls about it, and that they never felt anything similarJames may would call it "fizzing penis root" _URL_0_ :)Your organs are usually all smushed together by gravity. When you are in free fall your internals are just "floating around", and that causes that strange sensation. Astronauts have that feeling while orbitingYo i get the same feeling when im playing games like gta and i jump off a plane and watch myself fall i know its weird but it happens', "Tingling? To me it's AGONY . Nothing on a swing though. |
Why do diseases kill people? Is their goal to just kill everything or to survive and reproduce? | The entire goal of microrganisms is to survive and reproduce, some do it without hurting larger organisms, some help larger organisms and some take away from larger organism's. The ones that hurt us have evolved ways of exploiting our bodies to further there own need to survive and spread. |
Why do Americans seem to hate socialism? | There have been repeated propaganda efforts in the US to demonise socialism. _URL_2_ A popular method of garnering political support from the working class is to identify a group of people as an outer social group and to associate that outer social group with a threat to the life and livelihood of the working class. _URL_1_ If you hear an official denouncement of the memetics of a particular ethnicity , this is what is happening. It also makes it a lot more likely that your soldiers will be willing to take the lives of opposing soldiers in a conflict, by ensuring that they look on their adversaries with carnal hostility rather than empathy. _URL_0_ You'll see it in the schoolyard when a group of kids bullies another kid. |
What is pleasurable about anal for both parties, there seems to be very few pros to the hole thing. | As a somewhat frequent receiver of strapon anal from my wife, I can tell you that it is quite wonderful to receive after some practice. We started with fingers and worked our way larger. It's an erotic and kinky experience and I can occasionally have a hands-free orgasm. It's quite incredible to be honest. I like to bathe first and make sure I'm very clean, that helps clear any mental blocks so it can be a purely pleasurable experience. |
- Does gritting the road harm the environment? surely a massive increase in salt would alter the natural soil composition and harm the surrounding area/ecosystem? | As well as being bad for the natural environment, it plays havoc with any metal reinforcing in the road or bridge structure. Many of the 'elevated' sections of roads in London are now rotting because no-one realised putting loads of salt on them every winter was a bad idea. |
How come we can't decrypt encrypted stuff even if everyone knows how the encryption works like the Advanced Encryption Standard? | The same way a safe lock works. You can Google the mechanics of it, but you don't know the arrangement of the tumblers inside it.We just know how the AES uses the password to encrypt the data. Nowhere in the standard it says what the password is. |
How was professional cooking and baking handled hundreds of years ago in the hot seasons with no refrigeration? | No complex concept here. People cooked or baked every day, and ate the products soon so they didn't have a chance to rot. |
What would happen if a [large] group of billionaires paid of the US national debt? | Considering that most billionaires have much less cash, and much, much more in stocks, bonds, non-profits, and other investments, if the 500 richest people in the country all pulled that out at once, the economy could be devastated. Don't get me wrong, billionaires tend to have lots of money that's doing nothing useful besides gaining interest. But the majority of, say, Bill Gates' money is in his market shares of many companies, and liquidating would be devastating to those companies. |
Why couldn't the Allies have used atomic bombs as a nonlethal show of force, rather than actually dropping them on cities? | They would have had to use 3 atomic bombs. The US dropped a bomb on Hiroshima and the Japanese wouldn't surrender. They literally had never considered it. They were more than willing to fight a war of attrition to the bitter end. The US didn't want to nuke Nagasaki, but the Japanese still had no imminent plans to surrender unconditionally on August 7th. In your scenario, the first bomb would have been a show of force and Japan wouldn't have surrendered. The second bomb wouldn't have made them surrender and it still would have taken Nagasaki.There was talk of doing a public detonation as a warning before using the bombs, but it was dismissed because nothing would have been more harmful than if the bomb failed to detonate. It would have strengthened Japanese resolve and made an invasion of Japan all but necessary. In a great [essay] on the topic written in 1957 by Louis Morton, an army historian, it is described that: > The suggestion was made that before the bomb was dropped, the Japanese should be warned that the United States had such a weapon. "Not one of the Chiefs nor the Secretary," recalled Mr. McCloy, "thought well of a bomb warning, an effective argument being that no one could be certain, in spite of the assurances of the scientists, that the 'thing would go off.\'" By the time the Trinity test had occurred it had already been decided that the bombs would be used. It's important to remember that Japan was already a defeated nation, with their navy driven from the seas and their cities getting firebombed and they still hadn't surrendered. It's not unreasonable to believe that a non-lethal show of force wouldn't have resulted in unconditional surrender. edit: added essay link.Japan would have gave absolutely zero fucks. If it took two bombs dropped on their cities to make them surrender, just threatening them with the bombs wouldn't have made them surrender. |
Why do athletes spank each other? | I swear this happens every single day on the swim team. Speedos don't provide much protection against slapping.Well considering this is most stereotypical of football players, let's focus on them. They have a helmet on their head, pads on their shoulders, stomachs, backs, knees, hips, and Johnson. Let's hope no one would resort to tallywacker touching in any sport, but still, worth mentioning. So a tap on the back would go completely unnoticed by the one you're congratulating they simply wouldn't feel it through all the padding. The only "reasonable" place for a congratulatory tap is somewhere on the unguarded parts of the legs or arms. There are some instances of friendly arm-punching, but that somehow doesn't feel right in congratulatory situations, especially if they're still holding onto the ball or something, so that leaves the legs. I mean, you could go for like a calf-tap I guess, but that's so awkward. So, guys just wind up for a slap on the ass because ultimately, you want to guy who did good to know he did good. **TLDR** - Football players won't feel it / notice it if you tap them on the back because of pads, and most other unprotected areas that they would feel are in awkward-to-reach places. The ass is unprotected and convenient.It actually ties back to the rural roots of American sport, particularly midwestern football and basketball traditions. The tradition originated with people who came from farms and ranches, where it's common to lightly smack a horse, cow, pig, or other animal on the rump to get it moving. From there it became a symbol of encouragement and motivation in sports. If you look more closely at sports team behavior at the high school and college level, coaches and players assume many of the behaviors of a farmer or rancher herding animals. |
Why do different human languages sound so different but the same animal from around the world sounds so similar? | Languages are a reflection of human culture and history, and are learned when babies are born.If we didn't have any language we would produce only grunts and random sounds, just as animals do.If animals could produce languages, they would sound as different as we sound. |
If states like CO and others can legalize marijuana outside of the federal approval, why can't states like MS or AL outlaw abortions in the same way? | Both are cases of states choosing not to follow the federal law. The difference is, in one case the federal government decided not to bother enforcing its laws on states that don't want to follow it.Abortion technically has a Supreme Court protection through Roe v. Wade; the only way to really make it illegal is a Constitutional Amendment.Law student here. Basically, the Supreme Court struck down the state laws banning abortion. So those laws cannot be enforced. However, marijuana is regulated by state and federal laws. So a state can remove their prohibition, but it's still illegal at the federal level. The federal law would need to be repealed, or struck down in order to no longer be in effect. |
Why are injuries not passed onto future offspring like some conditions are? | An injury doesn't make a direct change to your genetic code, so will not be passed onto children. For example, if your dad was a war vet with several bullet wounds, those wounds have not altered any of his DNA and therefore his son/daughter will not be born with scars. |
What is the difference between Advil, Tylenol, and aspirin? I know they're different drugs, but what is each one doing to my headache/ pain? | Which one would be the best to take for lower back pain? I've been taking paracetamol and I find it good for headaches but not much for back pain. |
Why do I have trouble getting out of bed regardless of if I get 4 hours of sleep, 8 hours of sleep, or 12 hours of sleep? | Went to sleep clinic. Doc said my brain activity didn't settle at all. This makes mornings a battle. One thing that helps me. No stimulants after 11am but yeah. Some of us are just destined to feel like trash every for the first bit. You just suck it up and manage it and don't expect people to understand. They'll just think you're lazy so keep it to yourself in your real life.When it comes to waking up. "There ain't nothin to it but to do it" You can actually apply this simple saying to many easy yet aggravating tasks in life..Jumping into cold water etc. |
How is it sustainable for house prices to be going up 5, 7, 10% when real income is only increasing 1-3% and real inflation is only 1-2%? | There are two things going on here: First, all real estate is local. Prices may rise in one area while decreasing in others. If a bunch of people all want to live in the same area due to economic opportunity or available amenities prices in that area will rise. This encourages people to make best use of available accommodation by not purchasing a larger space than they need and discourages people without a compelling interest to move to the area at all. Second, the size and quality of our living spaces continues to increase. People aren't living in the same kind of places their grandparents did. We demand more of our homes and as our income increases are prepared to spend more on them. |
Why Build Nuclear Power VS Renewable | A more detailed answer. The following numbers are taken from the report at the bottom of the comment. > For $10 billion I can only imagine how much solar capacity you could build. 2.3 to 5.4 GW of capacity, depending on the estimate. Median is 3.1 GW. Two things to note, are that Russia is paying half the cost of the Nuclear power plant , and that, on average 1 GW of nuclear capacity provides between 3 to 6 times as much power as 1 GW of solar. Another note is that Jordan has only 3-4 GW of conventional generation capacity. Adding such a great amount of solar power that mix would completely destabilize the Jordanian electric grid, requiring massive amounts of power to simply be thrown away as they can't be used. > Not to mention how much less it would cost to maintain Lifecycle cost Nuclear : 65 USD/MwhLifecycle cost Solar: 110 USD/Mwh. _URL_1_", 'Currently renewables like wind and solar are intermittent, and will supplemental source for the foreseeable future. You need some sort of always on power to fall back on, and nuclear is your best low carbon option for that. |
Why are manhole covers not in the middle of a lane so car tires don't run over them? | Manhole covers are located where there's access to sewers. Sewers are planned and built where it is more efficient and convenient. Having cars run over the manhole covers isn't really a factor in this |
Why did we not evolve not to need sleep since it is such a poor survival mechanism against attackers? | Sleeping is very important in the formation of memories. Try not sleeping for a day or two and see if you remember anything that happens the previous day with the same clarity that you normally do. In addition, sleep allows your body to do basic upkeep functions like healing and clearing infections while you aren't using energy on annoying things like moving around and talking. |
What is diplomatic immunity? | I'm not sure everyone's talking about minor things like running traffic lights, but I thought diplomatic immunity exists so that we are able to hold summits, etc, with world leaders without arresting them for crimes against humanity or whatever. For example, Richard Dawnins wanted the police to arrest the Pope when he visits England for allegedly covering up the sex scandals. The Pope normally enjoys Diplomatic Immunity, but he is challenging his claim to that since the Pope is not recognized by the UN. This is largely what the point of DI is sometimes a world leader may do something horrific to his people, but society will benefit if we are able to actually hold meetings with them. |
What actually happens in the human body when one eats food and gains weight? | Your body is like a car. You only need 10 gallons a day of gas for your daily driving. If you put in 11 gallons then at the end of the day you still have 1 gallon left over which is no big deal if you only put 9 gallons in the next day. But let's say you are just used to putting in ten, and you continue doing it daily. If you go a week putting 11 gallons in, by the end of the week, you have a surplus of 7 gallons. You'll never get rid of the extra gas unless you drive farther than normal or put in less until the surplus is gone . People don't get fat over night, it's usually just a few hundred extra calories a day that add up over time; 7000 calories equal a pound of fat give or take. Our bodies are genetically programmed to preserve and extra food/calories for a rainy day so we don't just let it pass through us. On a side note, that using the gas analogy, it's so much more effective to put in less than you need each day to lose the extra gas vs try driving around all day. Exercise is important for health, but way over valued for weight loss. It's incredible how much exercise you have to do just to make up for one cookie, not to mention the hunger you feel after said exercise. Hope this is 5 yr old level stuff! |
Why is Burger King buying Tim Horton's a big deal? | Burger King buying Tim Horton's means that Burger King pays less taxes in America. This move is seen by many as un-American because they believe that Burger King will no longer be paying their fair share taxes. On the other hand, what Burger King is doing is perfectly legal and there's an incentive to do so because they pay significantly less taxes. This has sparked a new debate about corporate tax reform. Some want to close loopholes in the tax code like this to make it more difficult for large companies to avoid paying taxes and others want to change the tax code to instead incentivize companies to stay here by lowering or eliminating a lot of the taxes that cause them to leave. To clarify a few things, Burger King and Tim Horton's are not merging brands so the actual restaurants themselves will be unaffected by this merger. Furthermore, the majority stakeholder of Burger King and Tim Horton's is a Brazilian investment firm so it's not even clear if Burger King is truly an American company. |
How come tornadoes never touch down in big cities, and if one did, how bad would the destruction be? | One hit Minneapolis the same day as Joplin. Did far less damage but still, that's two in one day. |
why do the Arctic and Antartica have some different animals (most notably penguins.) Are the climates not actually that similar or is there another reason? | They are very remote. It's like asking why there are great apes in South America, the climate is near identical to the Congo, but there is a massive ocean that isolates the two continents. Except it's worse for the ice caps because at least at some point there was a land bridge leading from Asia to North America. There was never a land bridge from the Arctic to Antarctic. |
How can small spiders, ants and other insects walk on vertical surfaces as if they were horizontal? | There's the size factor like all of the other comments say, but there is also the effect of intermolecular forces between the atoms in the wall and the feet of the animal. More specifically: [London dispersion forces]", 'They have stiff hairs, natural adhesives and little claws that enable them to walk on vertical or upside down surfaces. |
Why do I, when sick, usually have one nostril relatively dry and the other clogged and runny? | This sounds like you have a deviated septum. Having a deviated septum is quite normal. It means that the soft bone tissue running down the center curves to one side. This doesn't need to be visibly apparent. Your nose my appear perfectly straight in a mirror. The severity of the deviation is where the issue can come in. Because your one nostril is regularly clogged more when you are sick, I am going to assume the deviation is to that side. If you remain sick, have pain in the form of sinus pressure relative to the deviated side, or find that you have recurring sinus infections, it's probably worth going to have it checked at an ENT. Reason being, if the deviation is severe enough, that side will continue to have trouble clearing infections and gunk in general. Over time, the irritation could lead to scarring and polyps. NOT FUN stuff. Sinus surgery is invasive and more risky than fixing your septum before it gets to that point. Hope this helps.Are you lying on your side? If so, gravity.When you're laying down, this occurs due to the position of your head. Your sinuses are only open at the top so when you lie down they drain. The drainage causes 1 nostril to be clear while the other is congested. This is why people toss and turn a lot more when they're sick", 'Gravity makes the snot go to one of the two sides. This blocks that side. The other side now has increased airflow to make up for the other side being blocked, drying it out. |
What is happening when people "zone out", or "stare into space"? What causes this? | Their Default Mode Networks are activated. Your brain has one mode for processing external information and one for for processing internal information. Researchers found out about this when they noticed a flurry of brain activity going on in the heads of their participants when they weren't doing anything special. Marcus Raichle gave a talk about this at my uni a while ago. He calls it the 'dark energy of the brain' because the internal processing of the brain accounts for 60-80 percent of its energy expenditure. Focusing on a task can actually make the brain spend less energy, because it interrupts the costly internal processing. The Default Mode Network is a part of this internal processing. It truly is a state of zoning out. A team of researchers were able to predict that their participants would make errors 30 seconds before they did by watching their Default Mode Networks activate. So what is it for? The answer seems pretty straightforward: by investing energy in internal processing, you can prepare yourself for the future. The Default Mode Network is all about goals and how to reach them. We daydream of success, love, friendship, money, food, and whatnot. We don't feel like we're doing anything, but we're actually working out complex cause-and-effect relationships. We're also scanning the future for threats. We're traveling from point to point in our cognitive representation of reality, working to better our circumstances. When there isn't anything demanding conscious control in our environment, our brains use the opportunity to engage in internal processing. |
Why do some websites require you to wait 5 seconds before beginning to download? | It originally was because some browsers wouldn't automatically start a download right away and they wanted to prevent you from downloading two copies simultaneously on accident.On top of what everyone else commented, I see it as a last chance to cancel the download if you clicked the link by mistake.I always it was so that you could look at the ad while waiting. And then if you need the ad's service, you click it. |
What does it mean to redpill someone? | Red Pill means to reject the mainstream media politically correct narrative and think for yourself. The main topic is the relations between men and women and all the political correctness that involves, but it touches on all acts of dissonance between official, politically correct public statements and harsh truths. TheRedPill subreddit is the main resource. Example: In popular belief, women doing the same job earn 20-30% less than men. Mainstream media repeat it all the time and never allow a discussion on the topic. However, a simple thought experiment debunks it with ease: if women earn less, where are the companies that hire *only* women, save 20% of their labour costs and dominate their markets? There are none. Worth noting that it has nothing to do with conspiracy theories. Observable, repeatable and falsifiable facts are all that matters. It's an extension of scientific thought into the realm of social life. |
Why do our ears ring when virtually no sound is being made to hear? | Welcome to tinnitus club. You get used to it and it's much more prominent when there is silence |
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