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The Control Group of a science experiment. How does giving a placebo to a control group do anything? | Let's say you invent a drug that prevents cancer. You have a group of people who are taking it, and another group of people who are taking a sugar pill. You're going to monitor them for 10 years and see which group has better cancer outcomes. Over the course of those 10 years, though, the city realizes that the air and... |
Why do touchscreen phones never lose calibration? | Most phone touch screens use capacitive touch, while other things, like computer touch screens use resistive touch. I'm no expert, but you can find more information on this article:_URL_0_", 'the one you mention sound like a resistive touch screen, resistive touch screen there is a gap between the touch part and the ac... |
What makes a song part of the Pop genre? | "pop" is short for "popular" and it's more of a status than a genre. |
Who is Guy Fawkes, why is he so important, and what is the big deal with his mask? | Guy Fawkes planned to blow up a few very important buildings. The Gunpowder Plot, as it was known, was going to blow up the House of Lords, but he failed when someone tipped off the feds. On Nov 5 they found him with a bunch of gunpowder and and they executed him So on the 5th of November people let off fireworks. It's... |
Why did a nest of ants suddenly die off? | Where? Urban, suburban, or rural? For suburban/urban, insecticides like Borax may have been carried into the nest. In rural areas, it is likely flooding, or in the winter, freezing. An interesting rare event is a "death spiral," where an ant will accidentally walk in their own closed pheromone loop, and more ants join ... |
Why do some songs on pop radio stations just now start to be played when they are months to a year old? | The record labels control when radio starts playing music. I don't listen to pop radio much, but I feel like "Take me to Church" became popular without radio, then the label released it to radioIt takes a while for shit to stack, then once it does it all comes falling at once. |
When you smell someone's fart, are you inhaling microscopic vaporized pieces of decal matter? | Most of what you smell is methane and other gases produced during digestion. Not fecal matter.No, it's just gas. [Mercaptan] being a primary component. |
When a video is uploaded over and over again on youtube, what is physically happeening to make the video quality get worse each time? | Compression. A typical camera records 1080p 30fps at 17Mbps, which is just under 1GB/min. Whereas a typical bitrate on YouTube is ~3Mbps, which is < 1/5 the size. Every time you re-upload it, YouTube goes through the whole compression process again. Compression is where they take a group of similar looking colors and m... |
Regarding when people say the baby boomers or gen X ruined the housing market for us millennials, what exactly did they do and how are they to blame for the state it's in now? | When population grows and the number of housing units doesn't grow proportionally, property prices go up, just due to the law of supply and demand. This is good for people who already own property and bad for people who want to purchase property. Typically, people who already own property are politically far more power... |
What is a covered bond? And how do they work? | Covered bonds are bonds that are secured by an underlying pool of assets, known as the cover pool. Investors buy covered bonds and so they have claim on the underlying pool. The underlying pool generate cash flow, and that cash flow is passed on to the covered bond holders. |
Why does gas you get in the US have so much lower octane numers than in germany? | Your octane numbers and our octane numbers don't mean the same thing. From an engineering perspective the octane number is actually a kind of hilariously arbitrary number that basically boils down a bunch of different fuel qualities, that all both individually *and* collectively control a fuel's likelihood to knock, al... |
Why is Japan receiving the most hatred for whaling when other countries such as Norway and Iceland is doing it as well ? | Many other places that hunt whales have strong cultural history of whaling and/or an actual need for whale meat as a food staple. Japan has neither and yet has been one of the most ardent pro-whaling nations on earth. They continue to ignore International rules on whaling for food and instead hunt on the flimsy pretext... |
How can humans sense when they are being watched? | We can't. It is confirmation bias in action. Basically, you have been watched countless times. One of those times you got a funny feeling and happened to notice someone watching you. Ever since, whenever you get that feeling, you believe someone is watching you.Edit wrong phrase.we cannot. in no rigorous study has it b... |
What is the purpose of creating super-huge elements that only last a few nanoseconds. | Often times, science isn't done with any practical application in mind. It's all about discovery. Perhaps, in the creation of a super heavy element, we discover some new field of quantum physics. Making them stable is less important than just seeing what happens as they're made and decay.It helps us to learn more about... |
Why isn't everyone using hypnosis sessions or recordings to unlock languages stored in your brain, weight loss tricks, etc? | Anything can work for quitting smoking, because the trick is just to somehow convince yourself that you do not want to want to smoke anymore. A hypnosis session might work just because you think it will. Hypnosis sessions cannot give you knowledge you never had , and there are *no* clinically proven methods to achieve ... |
How/what is starting the heart when in uterus. What initiates that very first heartbeat? | In human embryos the heart begins to beat at about 22-23 days, with blood flow beginning in the 4th week when the nutritional and oxygen requirements of the growing embryo can no longer be met by diffusion from the placenta. The heart is therefore one of the earliest differentiating and functioning organs^[1]. The elec... |
How is body damage on a car (dents, scratches, etc) repaired? | - Most scratches can be fixed with touch-up paint. - Minor, non-creased dents can be fixed with a dent puller, basically a suction cup. - Larger dents, or creases, can be fixed with something called body puddy, or bondo-o. Essentially you fill in the dent with the puddy until it approximates the original curve of the b... |
What makes hypoallergenic dogs/cats hypoallergenic? | The part that makes people allergic to cats is actually a protein found in their saliva. When a cat licks herself, she deposits the protein on her skin, and when it dries off, the flakes become airborne and trigger symptoms of allergy in people. So, it's not the fur that's the issue, it's the dead skin. In short, there... |
why can’t gravity be unified with other forces? | Oooh good one. I don't have an answer but I really hope someone does. This is gonna be interesting AF |
Why is it that when I am standing I get tired easily, but when I am walking I can walk for much longer | I'm just here to say great question. But then sometimes i stand and its not as tiring as just standing. |
Why does not every rain storm have lightning and thunder? | Lightning only occurs in high energy storms. This means they have a lot of CAPE . It can rain with low CAPE, but it doesn't necessarily come with lightning. High CAPE results in storms with considerably more energy. Areas like the West Coast of the US or the UK are examples of areas that consistently have enough precip... |
Batteries - Generic Vs. Name Brand | Check for an expiration date on the Kroger batteries. Sometimes the no-name batteries have been sitting in a warehouse for years before they get put on a shelf and someone buys them. From my experiences buying batteries from Amazon, I've seen the big names usually put an expiration date on the pack, as if to show they ... |
Why is it when someone eats a piece of sharp cheddar cheese, they get the sensation like their forehead and cheeks are sweating? | I have never encountered this and I eat sharp cheddar often, some weeks daily. I have also never heard of anyone encountering this. If you get a flushed or sweating sensation when eating a food and it is not overly spicy then you are likely having some kind of allergic reaction or intolerance reaction and you need to g... |
If employer applications state they will not discriminate against you based on your race or gender, why do they still ask for that information? | It's usually kept separate from the application, so the recruiter doesn't read it.They will use it if someone tries to claim discrimination to prove they aren't discriminating.Many employers are required by the Equal Employment Opportunity Commission to collect race and gender informationTheoretically, identifying info... |
Why are the cooking estimates on Frozen Foods always wrong even if you directly follow the instructions? | Cooking times vary due to the variance in appliances. However, I've noticed that with my particular oven, stovetop, and microwave, the estimated cooking times are pretty much spot-on. Perhaps you have equipment that either cooks too hot or not hot enough to match the expected cooking time. Adjust as necessary.My guess?... |
Why are South Koreans protesting and demanding their president resigns? | Basically, the South Korean President has admitted to being heavily influenced by a group of women who have no place in politics. They are the mostly the wives of large South Korean business-owners who have used her power to profit and further their own agendas. Tinfoil hat aside, it's more of a cult of personality tha... |
why is oil "slippery" ? | The defining property of oils is that they are [hydrophobic]. Hydrophobic molecules are non-polar. That means that the molecules don't really stick to anything. So when you push down on liquid oil, the the molecules just slide around. |
Pokemon cards. How are they made? | Are you asking how are they physically printed, or how do the legal rights to make them operate, or who decides what pictures and text go on each card? |
Why is it so much easier to set our biological clocks one hour back than it is to set them one hour forward? | Most people are some level of sleep deprived, and can easily "catch up" on an hour of sleep. Missing an hour of sleep is rough, and it's still pretty rough trying to get to bed an hour earlier. |
How come when I log in correctly, my computer instantly let's me in, but when I type it in wrong it takes 2 seconds before telling me it was incorrect? | This is actually a security feature - it slows down attackers. If they're trying a bunch of different passwords that might be yours , then making it take a couple of seconds to fail means it will take the attacker a ***LONG*** time to try a significant number of passwords. Then it's more likely that someone will notice... |
Why doesn't McDonald's food decompose? | It does. Those videos are very misleading, and involve fast food that appears to decompose very little only because it is kept in dry conditions , and then opposed to food kept in more humid conditions that decomposes very rapidly. It's complete BS. |
As a 27M who has smoked since the age of 16, how much of a recovery can my body make from quitting, how long will it take? | When you quit smoking, the inflammation in the airways goes down. The little hair-like projections in the airways that we call cilia begin to work again. So the lungs will get better in weeks to months. Breathing will get better. Exercise capacity will get better. Paradoxically, people find that they cough a little mor... |
Why do governments allow car makers to advertise diesel cars as CO2 friendly (less than 100 g/km) if they pollute far more than similar petrol engines? | Diesel engines are generally more energy efficient than petrol engines, i.e., they are "CO2 friendly" as you put it and so contribute less to global warming. What's wrong with being able to advertise that? Diesels do have more of a problem with some types of pollution but that's in many ways a separate issue. |
if traits like Hypertrichosis (werewolf syndrome) or Polydactyly (extra fingers) are dominant traits, why aren't they more common in the general population? | Just because something is a dominant trait doesn't mean it will end up spreading to everyone thanks to our old friend natural selection. If having a trait, even a dominant trait, causes you to be less likely to survive and pass on your genes, it will eventually be weeded out of the gene pool. |
Is there any way to find the curve of the earth using Geometry, if so, how? | Early calculations used the sun and shadows to help calculate the curvature of the Earth. Eratosthenes did this calculation using the shadows cast by the sun to find the angle of the earth's curvature, then he used the distance between those points to estimate the circumference of the Earth. He was fairly close, he gue... |
Why do we still use gunpowder in ammunition instead of other explosives that have a much greater energy to volume ratio? | No matter what explosive we use in guns, we'll still call it "gunpowder" even if it's not a powder. It's just a name that stuck. But we 've actually changed the formula several times. With small arms, you actually want to limit the speed at which the agent explodes, if you can believe it. Too much energy too fast, and ... |
What is a broadcast domain? | Each network has a broadcast address - if packets are sent to that address, they will be sent to all hosts on the network. The broadcast domain is simply the set of all hosts that will be reached by a broadcast on the network. |
If human skin 'regenerates' itself within ~35 days, why don't tattoos disappear along with it? | Tattoo ink penetrates through the first layer of skin, the epidermis, into the deeper layer - the dermis. The epidermis is the layer that routinely sloughs off old skin cells. The cells of the dermis are far more stable and does not shed like the epidermis leaving the tattoo intact. |
If a supersonic jet has a flattened "nose", will the sonic boom be louder? | The loudness of the sonic boom is essentially proportional to the amount of air the aircraft displaces at or above the speed of sound. If the nose affects how much air the plane is actually displacing, then it will change how loud the boom is. |
Why is it easier to balance on a moving bike than one at rest? | So, everyone so far has mentioned inertia and the gyroscopic effect. While these do have an effect, they aren't what keeps the bike from falling over. Simply put, the mass and speeds of the bike aren't enough to counter act you falling over. The true reason why you don't fall over is centrifugal force. If you were to s... |
What determines how fast a person metabolizes alcohol? | The average male metabolizes .015%-.020% of their BAC every hour. Three pints of 4.5% ABV beer would put you at .086, or just over the legal limit to drive. 3 hours later would put you at a BAC of .041-.026, the lower end of that estimate being not only well under the legal driving limit, but under the BAC that people ... |
What are those jets for in the sky, and why do they leave behind a trail of white behind them? | The airplanes are for transportation of goods and people. They fly very high to reduce drag with less-dense air and to avoid other planes. The trails are kind of like little clouds made from the stuff in the air swirling around as the airplane moves through it. These are called contrails. This is kind of the same effec... |
What would happen if a country cut the value of its currency? | it's happened alot with countries with out of control inflation. Iran did did it. they just dropped 3 zero's. i think congo did it too. dropped like 6 zeros.The denomination of the currency is basically irrelevant to its value. So if you could change the denomination instantly including on legal contracts and exchange ... |
How galaxies can be hundreds of light years away, and yet we can still photograph them from earth? | First, it is important to level set on the distance. The closest galaxy to the Milky Way is the Andromeda galaxy. It is around 2.5 million light years away. A light year is the distance that light travels in a year. Since light travels at roughly 300,000,000 meters per second, a light year is a very far distance. Now t... |
Why is the pain of having sore muscles somewhat enjoyable? | If I tell you that the pain you feel in your muscles after a workout is the pain of your body tearing itself down to rebuild itself better, how does that make you feel? If I tell you that the pain you feel in your muscles after a workout is your body developing cancer, how does that make you feel? And there's your answ... |
Why do companies pay dividends to stockholders? | You pay dividends to make your shares attracive to own. Many people buy shares hoping they will increase in value others want an income from owning the shares in additionWhen you buy a stock in a company, you become a partial owner of that company. At the end of each quarter, the company must report their earnings to t... |
Why is bottled water more popular than canned water? Why are cans of soda more popular than bottled soda? | Can't say for sure. My guess is that it is mostly a marketing tactic. A clear bottle gives the impression that the water is purer than a can. With soda, it doesn't matter really. Both bottled and canned soda sell, so they make both. Canned water probably doesn't sell nearly as well as bottled. Additionally, a can is us... |
Why can't we make computers that use regular English (or just a human language at all) to do things instead of all this code like Java or C+? | Step 1: place the cup on the table Step 2: move it 1 inch to the left Did you just move the cup 1 inch to the left? Or the table? Ambiguity like that is common in "natural" languages, but is no good for a computer language. This is just one of many reasons why computers have such a hard time understanding natural langu... |
Why do I hear so much about censorship in Australia? How did they get to be so strict about what they censor? | 1. Why do you hear so much about it? Because your journalists had a slow news week. 2. How did they get to be so strict about what they censor? Honestly, age. We have a large baby boomer population that votes again and again to keep the status quo. For the longest time we weren't actually censoring video games that did... |
What is RAW picture format and why is it useful? | RAW is a direct dump of the information coming off the image sensor of your camera with no processing being done to it at all. The main benefit is that you can do a lot of image processing on RAW that you wouldn't be able to do with JPEG files. A [picture like this] will show you what's capable. |
If copper is self sterilizing, why doesn't every hospital make door handles, and other frequently touched objects, with it? | A couple of reasons. 1. Copper is very expensive compared to other materials. 2. Sanitizing cleaning solutions are relatively inexpensive, and even with self sterilizing surfaces, these areas would still be cleaned regularly. 3. In order to properly self sanitize, it usually takes a minimum of around 2 hours. Something... |
How will Netflix use data to determine if they should do a Punisher spin off or not? | How many people watch multiple Netflix originals of other Marvel shows. If many people who watch DareDevil also watch Jessica Jones, and will also watch the upcoming Luke Cage/Iron Fist/The Defenders, that is a good indication they will also watch Punisher. |
Why does the expression "... like it's going out of style" mean that you're doing it a lot? Don't people do/use things LESS as they're fading in popularity? | It's implying that they know that X will be unpopular soon so the person is basically trying to get the most out of whatever X is while its still considered acceptable. |
What are the responsibilities of movie directors and producers and what differences do they make? | The director is responsible for maintaining the vision of the production. This person generally works as a creative bridge between the writer and the performers/production crew. Sometimes there are several more specific directors who are sort of sub-managers for different aspects such as visual effects or sound. Produc... |
How can the Sandy Hook victim families sue Remington for manufacturing a product? | > I get suing the shop if they failed to run all required background tests but I just don't understand how they're able to do this? Here's the thing. The shop ran all the background checks they were supposed to on Lanza's mother. The shop couldn't do a thing in the world to stop Lanza from murdering her and taking it. ... |
High School student, how does college work? | Major- Primary area of study. Often 40-60 credits taken in this area. Minor- You've taken enough credits to have an idea of the field, but did not heavily concentrate in it. Usually 18-24 core credits. Technical School- Typically offers vocational and trade programs; mechanic, nurse, IT, etc Associates - 2 years, Bache... |
When I'm passing urine, why does it froth some of the time but not others? This is into water without any cleaning products in it. | The froth is from the amount of protein in your urine. The times you will most notice this is in the morning when the content is highestThe timing of the froth will probably coincide with any meals you have eaten which are high in protein. Occasional froth in the urine is nothing unusual and nothing to worry about. You... |
why is math (statistics, calculus, etc) so important for a strong programmer? | There are lots of areas of programming that require only basic math. If you're doing development for a moderate-sized web site or app, it's quite possible you'll almost never use any math, and never anything beyond things taught in high-school algebra. More generally, some programmers use a lot of math all the time, so... |
Why is diesel more expensive than gasoline? | Diesel is used to power a large number of critical industries - trucking, farming, etc. Also, fuels very, very similar to diesel are used for heating in the winter and for lots of other purposes. So even though a minority of passenger cars burns diesel in the US, there's significant demand for diesel both year-round an... |
Why are English words phonetically explained with strange symbols? Why not just include those symbols in the alphabet? | First, they're not an English alphabet — each symbol in IPA is meant to represent a distinct and unambiguous sound that humans make to communicate. There are *some* sounds used by humans that aren't represented in IPA yet — so, it isn't complete. Second: there are *hundreds* of symbols in IPA — far more than there are ... |
why do I run out of gas faster when the a/c is on in my car | Because you are using gas to power your car and power the motor on the air conditioner instead of just using gas to power your car. |
Common Ancestor theory. Does the thought that different early life forming on different parts of the planet seperate from the first organism completely disprove this theory, or is there evidence against multiple sources lineage? | Evidence of parallel abiogenesis would damage the common ancesstor theory. The *thought* doesn't prove or disprove anything. Fossil record of life in multiple locations isn't necessarily evidence of parallel abiogenesis, as life can and does spread and become isolated. Genetic similarities provide evidence of common an... |
Why did humans develop in Africa when there's so much more water/food in the Northern Hemisphere? | Evolution needs some sort of selective pressure. Let me try to tone it down to ELI5: If food is plentiful, a species may not evolve. For example, bison have roamed the great plains of North America for thousands of years, and they have no reason to evolve any further . Here is the key: Africa was not always this dry. I... |
What is happening when my desktop tower is making (assumedly) calculating noises? | If you can hear calculating noises from your CPU, that's mighty fine hearing you have. The noise is most likely from your hard drive, moving the read/write heads back and forth on the platter.Stop right now and make sure that your data backups are current. Those aren't "calculating" noises. That's probably your hard dr... |
American Curfew Laws, What Are They? | Yeah, it is. It happened to me once. From what I can tell, how seriously they take this law depends on the area. For instance I used to live ain a very safe suburb, so I'd go walking at night as a kid, and nobody cared. But when I moved to a dense area with more crime and went out, I got the curfew violation. A second ... |
When a stock price drops fast in a short amount of time, who are the stockholders selling to? | There is always people willing to buy stocks at low prices: for example with a stock at $80. You would have: I'll buy 200 stocks for $77 ea I'll buy 100 stocks for $76 ea I'll buy 400 stocks for $75 ea I'll buy 200 stocks for $74 ea I'll buy 300 stocks for $73 ea I'll buy 300 stocks for $53 ea So when you really want t... |
if a communist country has a centrally planned economy, how is a country with a central bank that sets interest rates not communist? | Communist states typically disavow any notion of personal property either partially or totally. They call for a wide range of state action, covering every industry and business and so on. So they represent an extreme end of a spectrum. The other end might be the free market, or perhaps perfect anarchy where the Fed did... |
how does nonsurgical cool sculpting work to reduce fat? | Basically they freeze your fat cells to death, nothing really more complicated than that. The dead cells are then absorbed by your body. Viola, less fat. Calling it "nonsurgical" I think is a bit of a stretch. "Non-invasive" certainly, but it is an hour long medical procedure during which a local anesthetic is necessar... |
apparently you cant die from holding your breath, explain | If you're able to hold your breath long enough, you pass out and then involuntary breathing begins. |
Why do my eyes hurt after looking at a screen too long? | This is due to how the human eye focuses. It doesn't work like a camera wich gets set to a focus distance and then stays there. Breaking it down to eli5 level: If the responsible muscles rest, your focus is on the *very distant* setting. Looking at very close things is muscle exercise, and while your eye muscles can pr... |
Why can't people drink the water in Mexico but fruit that was grown in Mexico and watered with non filtered water is ok to eat? | The water is a problem because of bacteria. Bacteria will not survive being absorbed by the roots of a plant and turned into fruit. Water sprayed on the surface of fruit could potentially be a problem, but the bacteria that live in water wouldn't survive long out in the air and sun. |
Why do you get so hungry when you are high? | In your body you have an Endocannabinoid system which has a role in appetite, pain-sensation, mood, and memory. It's suggested that THC the psycoactive compound in cannabis activates a receptor called CB1 which directly increases appetite when fired.So, what happens if you never feel that way? I have never once gotten ... |
what happens to credit card debt when people die? | The balance will be taken from the estate of the deceased. If the estate does not have enough to cover the balance, the debt is written off as a loss. I have heard anecdotes of debt collectors chasing after descendants for the debt, but unless they have signed as legally obligated to paying it, there is no legal standi... |
How can math equations be depicted through stories such as Alice's Adventures in Wonderland? | The book AFAIK doesn't really depict math equations, but general mathematical ideas. For example, the Cheshire cat disappears, leaving only its grin. This is analogous to the type of abstraction that often occurs in mathematics; one will take a familiar concept, like integers, and then forget about everything that make... |
If we have never seen or been to the planet's core. How do we know what it looks like or how it works? | We used a lot different methods. The waves of the earthquakes act differently when moving through different materials. Measuring large earthquakes allowed us to get a good idea of what was going on in the earth just passed the mantle. The rest was speculation constructed from what we knew of the outer layers of the ear... |
What is this CE symbol I'm seeing on everything? | In addition to what /u/StrangelyTyped and /u/energymisdirected said, it's important to note there is another almost identical CE symbol that does not mean the product meets European regulatory compliance. Some Chinese manufacturers allegedly print a very similar CE logo on their products that is supposed to indicate th... |
While watching late-night TV, I see ads for buying gold and silver. Why should/shouldn't I do that? What's the deal? | Generally, commodities like gold and silver can be a less volatile market than stocks or currency. However, most of these commercials are scams. Especially for buying coins. The amount of gold they have in them is tiny. like less than $1 worth of gold in a coin that costs $20.If it's on TV, that usually means the price... |
Character and letter Alphabets. | You're making a distinction where there is none. "Character" and "letter" are pretty much synonymous. "A" is a character just as much as "字" is a letter. They just represent different things. It's necessary though to distinguish between different forms of writing. You have… - **Alphabets**, which basically treat conson... |
How does a can of whipped cream work? | Liquid cream is held in the can along with nitrous oxide, under pressure. This pressure keeps the nitrous oxide liquid too. When you press the nozzle, it releases the pressure. This causes the nitrous oxide to boil - turn into a gas - which has the dual effect of both aerating the cream and pushing it out of the can. T... |
How does lithium control the moods of a bipolar person? | Bipolar is where ones dopamine receptors go up and down irregularly, where a normal person's brain their dopamine receptors go up or down based on stimulation from the outside world. Like, listening to a catchy toon or wanting to dance can be considered addictive because it increases the dopamine in the brain. Lithium ... |
How does exercise benefit a human physiologically? | A lot of hormonal stuff happens that I don't know enough about to explain, but basically, you damage your body and your body goes "well shit, I gotta be stronger if this is gonna keep happening." So then it gets stronger. Note that if you do the same exercises forever, you won't keep getting stronger, you'll just maint... |
Why is an introductory class to something referred to as '101'? | Because in American colleges, every course is given a 3 digit number. The first digit represents the year that most students are expected to take the course. Most of the first classes an American college student will encounter is Whatever 101It comes from one method of numbering courses in college. Typically, the first... |
why does Obama have a high approval rate among foreigners | When people aren't subjected to the day-to-day politics of a particular country, it's easier to see a foreign leader favorably. For instance, Francois Hollande most certainly has a higher approval rating in America than he does in France. His policies wouldn't make for a viable candidate in the United States, but peopl... |
What is nymphomania and how does one become one. | It can be like a drug addiction because of the chemical reactions that occur in the brain. You just wouldn't develop any type of dependency. However the craving, and desire is just as strong in all addictions. |
How do Kickstarter payments work? What prevents the receiver from just running away with the money? | To my knowledge, nothing stops them. In fact there have been numerous complaints of people never getting what they order off of Kickstarter. It's very much buyer beware. |
Why we get shocked when we lick the top of a 9v Battery | It works because you're completing the circuit, allowing electrons to pass from the positive terminal, through your tongue, to the negative terminal. As far as it being cruel, I've stuck my tongue to a fair share of 9v batts in my time and never felt anything more than a tickle or vibration feeling. |
What exactly is happening when we suddenly don't need to use the bathroom anymore? | That never happens to me with poop, but rather urine quite frequently when I'm active. Maybe it sweats out? Pissing your pants by sweating? ha |
How is NASA 100% sure microbes aren't attached to the rovers and similar probes? When 99.99% sure means we're possibly spreading our alien microbes to other worlds. | They aren't, and in fact, they're quite sure there _are_ microbes. They just get all of them they can. |
Why do sentences only rhyme when the rhyming word is in the back of the sentence instead of the front? | A word is divided up into two parts. The first part is called the onset, the second part is called the rime. The onset is everything before the rime. The rime is what is used to make a rhyme. |
So is there an available fluid that could substitute blood flowing in our system? Like what's so special about blood? | What makes it special is that it has red blood cells, white blood cellsand platelets in it. The red blood cells carry oxygen . White blood cellsfight disease and I believe platelets cause the blood to clot. The liquidpart of the blood is called plasma. |
Why are our pupils more sensitive than the white around it? | The white part of your eye ) is opaque, and is what primarily holds in the [eyeball juice] that fills up your eyeball. The iris is the muscular stuff that can constrict and change the size of your pupil. Your pupil isn't a structure: it's a hole whose size is changed by the constriction or relaxation of the iris. The c... |
How does the umbilical cord attach itself to the child/mother? | Conceived in the fallopian tubes or top of uterus. Fertilized egg drops down into uterus, where it lands in a 'bed' of what is essentially blood*. Because the egg is fertilized, it gives off chemical messengers that it will be sticking around, so it doesn't get flushed out when it's time for her period. Over the next f... |
What's going on in Texas with planned parenthood and medicaid | The government gives money to various programs. One of which is Woman's Health. The Woman's Health program gives 40 million dollar to Texas for Woman's Health clinics. One of the largest Woman's health clinic is Planned Parenthood group which does Pap smears, gynecological exams, and mammograms. Planned Parenthood also... |
Why do we impose 'tougher' sanctions against N.Korea each time they do something instead of throwing every we can against them all at once? | For a long time, any action against North Korea was forestalled because they were allied with the Soviet Union and China and no one wanted a war with them. In fact we'd had a war, the Korean War, and fought it to a standstill. After the Soviet Union collapsed, North Korea still had an ally in China. However, as time ha... |
What does it mean to say something is post-modern? Does it just mean "meta"? | Not really an explanation, but here's an interesting way to put it: Pre-modern: This is the truth. Modern: We can find the truth. Post-modern: There is no such thing as truth.No, it doesn't just mean meta. The correct way to use the term is derived from the fact that everything goes through stages, specifically in art.... |
What is Aum Shinrikyo? What do they believe/work towards? | They were a sort of Buddhist doomsday cult who were led by a man named Shoko Asahara, a spiritualist and a con man. They were responsible for the Sarin gas attack on the Tokyo subway system in the late 1990s. I don't think they exist under that name anymore, I seem to remember reading about them rebranding themselves a... |
why doesn't baby poop smell bad? | Their GI tract is still colonizing. This is part of why they need certain nutrients more than others, because we get some of it from bacterial metabolism in the gut. Regarding why it is that way until solid food is beyond what I can say with certainty, but breastmilk itself is aseptic and it may be metabolized in such ... |
Differences between copyright, trademark and patent. | Copyright is automatic, and protects all original artistic works, including photography, visual arts, film, music and writing. Another person cannot use your work without your express permission. Trademarks are specific business identifiers, and cannot be used by others to make it look like they are associated with tha... |
What is happening when we suddenly forget something, then go back to a previous activity and remember it? | Memory is heavily rooted in context, like the room or environment in which a memory is made. This is called the Encoding Specificity Principle. When you are going about your life trying to accomplish some goal you will occasionally forget what exactly it was that you were trying to do, however it is important to note t... |
How far does a speaker move in and out when it vibrates? And do the air molecules next to it move the exact same distance? | This parameter in speaker design is called XMAX and can be in excess of 2" peak to peak for subwoofers designed to produce high sound pressure levels. Source: worked in mobile audio retail for a number of yearsTake a look at this. _URL_0_It helps explain quite a bit about how speakers work, how they move sound and what... |
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