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I've heard of MRI techniques to identify if a person is telling the truth - with 99.9% accuracy. How do these work? And why aren't they mandatory for serious/violent offenses?
[Even the company that makes them only thinks they're about 90% accurate right now.] Polygraphs have always had admissibility problems in court. It's going to take much more than 90% confidence to adopt them -- if you can get past the possible 5th Amendment issues they bring up.Also, no matter how accurate this technique might be in a controlled environment it would be hard to know for sure that it would work in such an emotionally charged situation.They don't work is the problem. You heard wrong.
Is it true that smoke from incense and candles is more harmful than cigarette smoke?
The health effects of smoke from incense and candles is still being studied, ranging from some studies saying they post no threat to others saying they pose a significant health hazard. Here's a snopes summary with a number of references an quotes: _URL_0_
How and why birds move their heads in perfectly smooth and almost mechanical motions.
Birds have very precise muscles in their necks because they cannot move their eyes like we do when we want to look at different things in our field of view. They would have to move their necks to point their head and eyes at something else. Their heads have [extremely smooth stabilized movement] because they need to keep their heads and thus, eyes steady to look at something. When moving, some birds have a bobbing motion because their heads are moving from one stabilized position to another.
Why after getting an excessive amount of sleep (10-12 hours) do i wake up physically sore and lethargic?
I'll admit I don't know about you beyond sore but everyone has a sleep cycle that our body tries to adhere to. When you sleep longer than your sleep cycle another begins and so your body doesn't want to be awake until that cycle has completed.
If the icing part of "RICE" recovery is no longer considered good, why do athletes still take ice baths?
Ice is still good if you want to have a functional body part that isn't incredibly painful. If you can't walk or lie down because your knee or back is highly inflamed and very painful, it doesn't really matter if theoretically it could heal a little bit faster because you'll probably just re-injure it out of frustration and lack of mobility.
If black is the color that absorbs the most energy, why green is used by nature?
Because photosynthesis isn't just about absorbing energy, it's about *harnessing* it, and for that black pigment would actually do more harm than good. The various proteins and enzymes involved in photosynthesis are very fragile, and can only handle so much energy at once. Black pigment would result in too much absorbtion, and would basically cause the leaves to overheat, which actually *reduces* efficiency. Plus, most green plants aren't in places where sunlight is scarce; the restrictions on their population are more due to animals eating them and a lack of water/nutrients, not sunlight, so greater energy absorption simply isn't needed. Plenty of plants *are* black, or red, or blue, or some other color more suited to their particular situation. You can read more in this helpful /r/askscience FAQ: _URL_0_", 'It has to absorb the energy and use it. You can think of the chlorophyll pigment like a shelf, the light raises an electron in the pigment to a higher level. The higher the level, the more energy that electron can do - e.g. make sugars from CO2. Now black pigments absorb all light, which means the energy level is low and cant do any work. A blue absorbing pigment energy level is high and can do lots of chemical reactions, but doesnt absorb much light . It turns out green is a good compromise, absorbing all the light except red, but with a high enough energy level to do useful chemistry.
Do cats purr on purpose?
Absolutely they can control it. They can vibrate the hyoid bone in their throat just like we can. If you purr at a cat, they will often respond in the same way that if you meow in an upward question style, they will rub against you. No one knows why they purr but it definitely is related to contentment and they often do it while settling down for an evening in the warm or after being fed. I don't think you can train a cat to purr but you could perhaps frighten them out of doing it using aversion techniques which would of course be cruel and wrong. Why you would want to though is a mystery. Studies show that we find cat purring to be extremely soothing and comforting which explains why we give them food and shelter for little actual return on the investment. Some animal behaviour studies suggest that cats do not naturally purr in the wild and it is a trait that we as humans have encouraged over millennia since purring is neotenous or kittenish behaviour. We encouraged and bred for a behaviour we found endearing and soothing. Cats are the closest thing we have to Tribbles I suppose.I read somewhere that cats purr 24/7 but there are cases wherein they are purring louder than the usual. Its like when they are satisfied with the current situation or happy.They do have some control over it, and will at times use the purr to fool people. I don't know if they can help purring during birth. They will however use the purr to fool people. Pick the cat up, and he don't want to snuggle. First he struggle, then he seems to accept it and purrs That's when you relax and he makes his getaway. You will be able to find this described online along with cats pretending to be females to get the girls under a dominant males radar etc. Cats are delightfully devious.
What power to influence policy does the UK's shadow cabinet actually have?
Shadow cabinet can't directly affect government policy so it's the latter. However as members of Parliament they can vote on acts and issues put before the house. The government can be defeated on an issue if enough MPS vote against them. This is why any party likes to have a majority so that they can push through their acts.If members of the ruling party vote against government it's embarrassing for the prime minister and can lead to their downfall. You can see MP voting records at: _URL_1_ Log of votes and proceedings: _URL_0_
How does gas gets build up on your intestines?
It's produced inside you, largely through digestive processes by microorganisms in your digestive tract. Basically, you've got a fermentation vat in your guts.The bacteria in your body breaks down the food you eat into other components. By products of breaking down the food you eat include3s carbon dioxide, methane, and other items that build up as gasses inside your body. Another similar reaction is when yeast consumes sugar when making bread or beer. The Yeast break down the complex carbohydrates of the sugar and expel CO2 and/or Ethanol.
What is "TCP Limit" and "UDP limit" in Advanced Tomato Router Settings
They limit the maximum number of open TCP connections and UDP ports. So they limit how many different network actions router allows a client to do at the same time. It is one of the many ways to do quality of service prioritizing. Normal user usually doesnt need it or want it enabled. Bandwith limiting is usually more suitable for QoS if you even need any of that. _URL_0_
Why do really, really old (like medieval, renaissance, etc. time period) pictures/sculptures show that the men had really small penises, even though they were adults? (Possibly-NSFW)
They were copying the style of Classical Greek sculptors. The Greeks considered large genitals to be unsightly, and so they tended to sculpt small ones.Penises have not always been the primary symbol of masculinity: during the Renaissance, for example, men's hands were the symbol of strength and manliness . Another reason would be that they were probably depicted flaccid and not given much importance, like any other part of the body. So artists wouldn't have any reason to make them big/erect, since nobody really cared how big they were.
Why do Canadians call the last letter in the alphabet "zed" while americans call it "zee"?
Canadians call it zed because the English call it zed, and the English call it zed because in Old French it's zede, from the Greet zeta. Americans were the ones who changed it to zee. Mostly just evolution over time, and then Webster made it linguistic canon by declaring it to be so.
Why are cargo ships only using high-powered hoses to stop somali pirates?
Biggest problem is that while there's nobody preventing you from having a gun onboard in open sea, in 99% of countries, you won't be allowed to dock with firearms onboard. Legal firearm ownership is not a given in most countries
How come continuing to eat a spicy food keeps the spice at bay until I stop eating it?
Your saliva and the movement of your mouth is keeping the capsaicin from staying anywhere for more than a second. Once you stop eating, it has a chance to stimulate your nerves and start making your mucous membranes crySpicy foods usually contain capsaicin, a waxy chemical in chilis that make them taste hot. Capsaicin binds to and activates a certain "receptor" protein on certain types of sensory cell. This receptor and these cells pass along several different types of sensations, which are carried back to the brain in different ways. These sensations include temperature , painful burning, and a sort of abrasive sensation. Capsaicin activates the "painful burning" mode very strongly, while greatly increasing the "signal strength" of the less painful sensations. Because the same nerve fibers must carry these very different signals, sometimes one type of sensation can partially or completely block another. In the case of chili peppers, capsaicin activates the painful burning feeling, but also opens the door for ions to enter the cell and greatly increase the other sensations. tl;dr Scraping sensation drowns out burning sensation some while you eat. Salts and other stuff along with the pepper may increase this effect
How large corporations recover once they have been infected by ransom ware.
Any corporation with a competent IT department does regular system-wide backups on a daily basis. They also have a disaster recovery plan that allows them to stand up new instances of their critical systems on short notice. And sometimes, they just pay the ransom. They routinely put thousands of dollars worth of software on every desktop, paying $500 a pop to free them up is painful, but not undoable.
why aren't the big companies sharing their self-driving car data to achieve autonomous cars?
Why would google share their technology? Everyone wants to be the first/best in the market because that is how they will make money. There is no reason google would share their technology with a competitor.Well, firstly the software isn't the same, the companies would need to do some giant adjustments to make their data compatible. Second, companies like Google have no incentive to share their data with Tesla, Mercedes, etc.; as you said they are already months ahead. If each company got the same data, they would release their cars around the same time, which would hurt Google's sales.
Why do our eyes "burn" when we wake up without enough sleep?
As you get more tired, your body tries to shut down so you'll go to sleep. That affects the amount of tears that are released by your tear gland. So, less tears flowing, eyes dry out, and it burns. What's your body's solution to that? Close your eyes to cover the dry surface. Which, when you close your eyes, your body will also want to sleep. The burning is telling you to close your eyes and go to sleep.
If it is illegal to melt down pennies, how is it legal to press them?
Are you talking about how it's legal for the US Mint to press them? Because they're authorized by law to do so. If you're asking about those novelty machines that strech out a penny, it's because defacing the currency for non-fraudulent purposes isn't illegal.
Why does twisting something make it easier to go in?
Not 100% sure, but I believe it could be due to static friction vs kinetic friction. Friction coefficient for stationary objects is higher than for moving objects , meaning that if something is already moving there is a lower friction force. Basically any object that is put in motion is easier to keep in motion than starting from a dead stop, so if you are twisting the object you have to overcome kinetic friction instead of static.
how does adderall, vivans, and ritalin affect the brain?
Unlike many medications, these actually cross the [blood/brain barrier] which means they can actually manipulate things going on in the brain. When there, they tickle certain areas and make the brain release chemicals, which change your mood, etc.
How does this plastic surgery net thing work?
I found [this article] which explains that scar tissue has a different collagenous matrix than regular skin. Whereas scar tissue has collagen fibers that are arranged longitudinally, normal skin has fibers that are arranged in a "basket weave". This net that you speak of is possibly a "scaffolding" of collagen to promote normal skin growth rather than scar tissue growth although i cannot say for certain. Edit: The part i'm referencing here is just above section 3: mitigating skin wounding though i 'd recommend giving the whole article a read it's quite fascinating.
Why do cartoons decide to change art directions every season?
It's most likely just that they're adapting to changing quality and aspect ratio of television and that they're finding easier ways and making more money to make better quality productions, as is the case with South Park.
How does music from your phone go through a metal wire and come out as music at the other end?
The wires end in little coils inside the earbuds which also contain a small magnet. When current flows threw a coil, it generates a magnetic field which moves the coil against the magnet. Attached to the coil is a thin membrane that makes the air in front of it vibrate. Essentially inside your earbuds are tiny speakers. Your phone sends current through the headphone wires at the frequency of the sound it plays.
Why do cats/kittens do the "butt wiggle?"
It's the pre-pounce balance and foothold assessment. From an evolutionary standpoint, an accurate but partly telegraphed pounce probably infers survival benefits greater than a silent miss.
What does it mean to be non-sentient?
Sentience is loosely defined, with a vast number of people disagreeing on both what it is and what is included. The most common definition is the ability to perceive and be influenced by outside stimuli. Basically, the ability to feel . This definition would include many animals. Intelligence, self-awareness, sapience, consciousness, and similar words are all variations on a theme. They suffer the same curse of being understood broadly but everyone disagreeing on specific definitions.The way I understand it, sentience is pretty broad actually. Sentience being the capacity for emotion and abstract thought in some capacity, most mammals are sentient, in addition to some varieties of birds . Of course, most of these don't *think* in the same way we do, since they have no language. However, they feel emotions in much the same way we do, and have needs and desires that they focus on in different ways like we do. The cutoff point is hazy. Some reptiles *could* be considered sentient, but go much farther down the evolutionary tree than that and animals just don't have the brain power to have sentience. The term you may be thinking of is sapience, which *is* exclusive to us Homo *sapiens.* This term generally refers to our higher cognitive ability - the abilities that the human brain possesses that no other animals possess. However, this term is kind of anthropocentric. If we discover other life with the same level of cognition as us, calling it sapient would imply it's somehow related to our species. Hope that helped.
feeling the presence or stare of someone nearby
It's a combination of picking up signals you're not conscious about and confirmation bias. Humans do not have some magical ability to sense other humans.Great Through the Wormhole episode about experiments exploring this: [s02e05 "Is There a Sixth Sense?Someone in another Eli5 answered this and said you remember the times you catch someone staring at you and forget the times no one was staring at you when you thought they were. So you just think you can sense when people are staring at you.
Why are most republicans anti-decriminalization of drugs? Don't they favor less government power?
Speaking in broad generalizations, republicans are against less regulation of business and enterprise, but more regulation of the individual. Someone who is for less regulation across the board would usually be called a libertarian. One way is that a republican is someone who believes that people are fundamentally bad, and should be regulated. .
Why is it that people with diabetes are not allergic to sugar.
When a person allergic to peanuts has a peanut, that persons immune system goes all haywire attacking the peanut, and ends up attacking the whole body as collateral damage. When a diabetic has sugar, it enters the bloodstream but their body is missing the "key" to get it into cells, so It just sits there in the bloodstream and the cells get nothing. Very different responses.Allergies are the immune system getting confused and thinking something is a threat that actually isn't. Diabetes is a dysfunctional response to insulin, or the inability to product enough insulin. Unrelated to the immune system and a completely different mechanism from an allergy.
Where do companies like Winco/other grocery stores get their own brand of milk? Do they have cows?
Grocers often have their own brand of *many* foods and drinks. They simply pay the factory to make extra packages with the store's name on them. They rarely own that factory.Some large chains like HEB or Walmart will have their own factories, or in the case of milk Dairies. Others will simply make contracts with existing factories and DairiesI worked at a dairy plant for a few months. We would set up the line to pack butter for the big brands. Once the order was filled we would switch out the packaging to the store brands and keep rolling. LITERALLY the exact same product.
2 men responsible for wildfire are being billed $37 million, the cost to put it out. How are they expected to pay this?
If they cannot pay it all now their wages will be garnished from now until the point that the debt is paid. Not all debts can garnish your wages, but governmental debts and legal fines can. These types of debts cannot be discharged via bankruptcy either. Odds are they will be paying for this crime for the rest of their livesThis kind of stuff helps to serve as a deterrent and warning for other people who might think about breaking the laws/rules in placeAlso how did their lawn mowers start a wildfire?
Why do so many cigarette smokers find it ok to litter their butts?
The same reason why other people litter or do things that in general only poorly educated people would do. The world is full of assholes, smokers who just throw the butt anywhere are a good exampleWhen I 've asked in the past, the general response has been "They're biodegradable; they'll go away eventually." This is despite the fact that filters usually are NOT biodegradable. I 've found that over the last decade, littering is on the upswing again, as the anti-litter campaigns of the 80's and 90's seem to be wearing off. I see people toss their fast food wrappers out their car windows and doors, leave their Starbucks and Slurpee cups wedged in to any available crack, and cigarette butts and gum splotches are covering sidewalks again. I find this surprising, because I know fewer and fewer people who smoke cigarettes and know pretty much nobody who chews gum regularly, compared to the 80's where everyone under 30 was chewing gum.
17 and need to know how taxes work?
Ask them what you have to do to have the most amount withheld . How do taxes work? I'd say they don't. But to answer your question, an amount gets withheld from your salary each pay check and gets sent to the government every quarter. Then, at the end of the year you file your returns which tells whether you have paid too much already or not paid enough. In your situation, you have probably paid too much and you wait for a check in the mail .
Why, if the majority of people are right handed, are laptop trackpads usually on the left?
Of all the laptops I 've used, the trackpads are either centered with the laptop as a whole or centered between the home row bumps. Sometimes, this introduces an offset to the left to make room for numerical keys on the right side . Moreover, the spacebar is likely not centered between the home row key bumps. Note this photo of [a Latitude E6540]. The trackpad is offset to the left of the laptop, as a whole and doesn't align with the space bar, but aligns perfectly with the F and J keys, which have the index finger bumps for the home rows. Modern keyboards are meant to have your fingers settled on the home row which would center the trackpad between your hands during normal typing, which would allow you to use the mouse ambidextrously or, if you're like me, use one hand to guide the mouse and a second hand to press the buttons.They are centered on the 'standard' part of the keyboard, not the entire keyboard.
How is not being attracted to a race, racist?
a lot of what determines our initial attraction to someone is completely subconscious. your body smells pheromones and other things like facial symmetry because your body wants to create healthy offspring . for some people it is psychological and could be based on a certain view of a race, and in that case, it could be construed as a bit racist. however, it's also completely normal for a person to not be as attracted to people of certain builds, races, etc. It could also simply be a matter of aesthetics and what you have been raised to see as attractive, which is a whole separate, extremely debatable subject.It's not, but a century of progressiveness has ingrained to everyone's mind that if you don't like/want to be around a certain race, you are racist. Unless you are saying that a certain race is inferior, and doesn't deserve to exist, you aren't racist. This kinda reminds me of that semi-recent TIFU where a homosexual man , said to his black female friends he wasn't into her "people." Although he wasn't being racist, he was deemed a racist by his black female friends, and shunned at work. I'm too lazy to link it. TL;DR It's not racism, it your personal preference', "It isn't. Just adding this in case the auto-mod tried to get all grabby with me again. Sorry there isn't a longer way to say it auto-mod. It just isn't. Picky bastard.
How can an undocumented immigrant speak at the DNC and not be arrested?
The choice to begin deportation proceedings against any alien is at the discretion of the executive. Being in the U.S. illegally is not a crime, but the situation with crime is similar: the prosecutor isn't *required* to charge anyone with anything. The Obama administration, like most before him, isn't actively deporting every known illegal immigrant. Each deportation is expensive, there are too many illegal immigrants in the U.S. to significantly change the number in the short term, and it's not thought that trying to do so is actually good policy.Probably put of context, but how can you speed up a case for someone who has applied for residency for more than 4 years?
If spicy substance is supposed to burn calories, does eating spicy candies help you lose or gain weight?
If by spicy substance you mean something like hot sauce, not totally true. My understanding is that the flavor of a food doesn't affect how many calories you burn, it's what they're actually composed of.
Why are humans innately "scared" or "creeped out" by insects and arachnids?
This trait is believed to have originated while we were still Humanoids or even "Apes" . A lot of the insects, snakes, spiders etc are venomous and if we were to survive as a species, we had to prevent dying and going instinct from bugs . So, an instinct developed to stay away from the aforementioned animals which you, me and all the people have to this dayI also believe its because they are so different from us that we are repelled by them.
Why are there so many different programming languages, and what's the difference?
This is because everybody is free to develop a programming language. Besides that everybody has his own taste and requirements. There are languages which are for example more suited for web or standard applications, others may be more low-level to build more specialized stuff. Languages can evolve or fork into different tastes, or die out over time. Popular languages will often have big and active communities who contribute to it's development and deliver standard building blocks which can be reused by other developers.
"OP is a faggot"
It's a meme that comes from 4chan. [Here] is the Know Your Meme article on it.OP means Original Poster. So if I said "OP is a faggot" I would be implying that you as the one who made this thread is a faggot.
Why do Australians Love the Word "Cunt"
We use it casually in the UK too, when I moved to the U.S. I quickly discovered how easy it was to offend an entire store full of people when addressing my friend as a cunt on the phone.
The saying "easy as pie"
Googling this would have been a piece of cake!Much better than the saying "have your cake and eat it too". Why the fuck would I not eat my cakei dont think some people understand the purpose of this subreddit
Some stars appear to twinkle red and blue very clearly on a dark, moonless night.
Have you ever seen the air shimmer on a hot day? When light passes through air of different temperatures it is refracted, just like when it passes through water or glass. When you see stars twinkle it is the light being refracted as it passes through our atmosphere
Computer, phone, etc. batteries lose longevitiy when a charger is connected for extended periods of time while already at 100 percent charge
It really depends on the chemistry of the battery and any safety circuitry built into it. Leaving a device plugged in at 100% isn't really a problem for average users any more as the combination of lithium ion batteries and protection circuits in batteries, chargers and devices is unlikely to reduce the lifetime of the batteries noticeably. The conditions you keep a battery in are more important - high temperatures for a modern Li-ion battery are more damaging than keeping it plugged in. There's a lot of misinformation and ill-informed or out of date opinion on the net so make sure you know what type of battery you are talking about and any advice you read comes from someone who knows what they are talking about and is specific to that type of battery.
Why haven't undocumented immigrants that are protected under DACA gotten green cards or become citizens?
Because those who are covered under DACA aren't made any more eligible for Green Cards or citizenship than they were before. They entered the country illegally because they couldn't do so legally; why do you think arriving by breaking the law would make them any more eligible?
Why are things (cars) reflected on the road?
When the air gets hot, it bends light in a different manner to create the illusion of water on the road or vehicle reflections
What do human accountants do that computers can't?
They can’t make assessments on if something is or isn’t. Most are programmed as if true= and if false=. They won’t consider if it’s an odd one off where false doesn’t mean XAccounting has a lot more interpretations involved that require human cognition then you might think. Computers are very bad at this.
the impact of the European fiscal treaty on Ireland
A yes vote means that Ireland, like the rest of Europe, is slowly moving toward a federation. Basically Euro countries don't have monetary sovereignty, which means they have no national control over their currency, as we do in America with the Federal Reserve. With the fiscal treaty they will give up fiscal sovereignty, which means for some things people who aren't Irish will make decisions on how your government will spend money. A no vote is a little hectic. It puts you on the path to leaving the Euro, and it makes the entire zone less stable. It does mean, however, that your nation retains more sovereignty. The problem is that the Euro has demonstrated an inability to deal with a crisis, and the two most likely outcomes of this are 1. A federated Europe and 2. A complete collapse of the euro, retention of national sovereignty, and an even more dramatic global economic crisis.
How does the Plumbing on a Rotating Building/Tower Work?
The center of the building is stationary, which you can see an example of [here] All the pipes from the floor would flow to the center of the stationary part, where they'd connect to a piece that can constantly spin . [Here] is an article about the architech from the the tower in Dubai", 'Pipe fitting can be made so that one pipe can constantly spin at the slow rate needed while the other pipe remains fixed. It is a much more complicated and prone to error method but it can work. It has to be done at the center of the building or flexible pipe must be used above and below. The same solution has to be found for electrical connections and data transfer. There may be a wifi link for dataThese buildings will probably have a non rotating core which hold things like plumbing, cables and the elevators.
Why is it that some gay women are attracted by other gay women that are very masculine in behavior and in looks that they almost look like men? Is there a grey area?
Gender and attraction are not black and white. Some people are attracted to masculine women some to feminine men. Everybody is different and has what they're in to. So to answer your question of if there is a gray area; yes absolutely, a whole lot of gray area.
What is the difference between the phoneme /th/ (as in ‘think’) and /th/ (as in 'leather')?
The first is an unvoiced fricative, as in the sound can be sustained and the vocal folds don’t vibrate. Air just passed through your mouth to make the sound. The second is a voiced fricative. Your vocal folds vibrate and you can sustain the sound on a specific pitch. The position of your tongue and teeth is the same for both sounds, but it’s the unvoiced/voiced aspects that make them different phonemesThink about the difference between “either” and “aether” , the only difference is one has a voice dental fricative and the other’s is unvoiced. In other languages with both of these these phonemes are written differently As a non native speaker this phonetic differences were some of the thing that made English difficult. In my understand the first have a clearly accidental but in the second the tongue go a little back.
Why are medication and surgical operations so much more expansive in America compared to other countries?
Our healthcare is among the best on Earth, but our insurance industry is very big and powerful, and they like profit, so they set high prices for products and services. We missed the chance after WWII to nationalize healthcare like with the NHS in the UK, and that let insurance companies get as big as they are today. This is a problemThe American system concentrates on extracting profit from each customer, so expensive procedures and treatments are heavily emphasized.
Why does symmetry make people look more attractive?
Not 100% sure about this but I think that it is in our genes. Symmetry is associated with healthiness. Back then when it was "only the strongest survive" symmetry was a sign of a healthy individual with good genes. If you have a healthy partner, you and that person are more likely to create a strong and a healthy descendant that will survive till he/she is able to pass your genes to the next generation.
The difference between Black Metal and Death Metal
Stylistic: Black metal vocals are distinctly higher pitched, while death metal vocals tend to have a lower, more gutteral sound. Black metal guitars are also often higher pitched, and the play style creates a more ambient droning sound compared to the slightly more melodic sound offered by many death metal bands. Thematic: Subject matter varies, and there is plenty of overlap. Black metal often deals with the cold bleakness of winter, and death metal is often more macabre and violent, but the two genres aren't mutually exclusive in this regard.Death metal: sweaty American stabbing himself with rusty knife in a basement. Black Metal: skinny Norwegian running through a wintery forest in face paint.
What does today's interest rate change mean for me as a homeowner? Does it affect non-home owners? What real effect will regular people see?
If you have adjustable rate debt - mortgages, credit cards, car loans - your interest rate will go up slightly. If you are "locked in" at a fixed rate, it won't affect you. If you have savings, you *might* also see a slight increase in the interest paid to you. People who want fixed rates in the future will have to pay more than people who got them in the last few years. No one can be sure of the actual affects since we don't yet know how much the interest rates will increase by or how many increases will come in the near future.Banks borrow money from the Federal Reserve at the Federal Reserve interest rate. If the Fed raises its rates, the banks will also increase their rates. This will mean is it slightly harder to get a loan and you'll pay more money for borrowing in the long term. If you have a savings account, you'll also earn more interest on it. Because it is more costly to get loans, people may buy fewer houses, cars, and other things that need loans. Inflation will slow. Businesses may slow in growth because they can't can't expand as quickly. The stock market will be a bit shaky for a while but will probably even out. The value of the dollar may raise slightly. The rising dollar could help American companies. > What does today's interest rate change mean for me as a homeowner? If you have a fixed rate loan, nothing will change. If you have a variable rate loan, your interest rate is going to go up.
For the people that answer ELI5 questions: A Challenge!
[link] for the lazy - and i'll give it a try.This has been done on ELI5 a hundred times already, use the search function
How an engine works, and how it dies?
I'm assuming you mean an internal combustion engine, like the ones found in most cars, here. The basic working unit of such an engine is the piston/cylinder arrangement. The cylinder is a hollow space within a metal alloy block. The piston is somewhat mushroom-shaped, with the head of the mushroom filling the cylinder and moving up and down inside the empty space. This up-and-down movement is called a stroke. The stem of the mushroom is called the rod, and it connects the piston with shaft called the crankshaft. At the top of the piston is an arrangement of parts called the head which performs several functions. The head has valves which open and close at specific times during the piston strokes. The most common type of automotive engine is called a four-stroke engine, as the piston completes four up and down movements during a cycle. During the first stroke, the piston moves downward as the intake valve opens. This movement creates a vacuum which draws a mixture of fuel and air into the cylinder. The next stroke is an upward stroke, which compresses the fuel and air mixture together. At the top of this stroke the mixture is ignited, by an electric spark in gasoline engines, or simply by the force of the compression in a diesel engine. The force of ignited gas expanding drives the piston downward in the third stroke, and the fourth, upward, stroke expels the exhaust as another valve in the head opens. As to how an engine "dies," there are literally hundreds of ways that an engine can break down. For proper operation, the engine has to be kept within a pretty strict temperature range, and most of the ways it can fail involve overheating or loss of lubrication, which cause mechanical stress on parts causing them to change their shape or to break. Since the parts of an engine move so fast even a small crack or deformation in a moving part can generate excessive friction which causes failure.
Why is it considered offensive to respond to an accusation of bigotry with "Some of my best friends are gay/black/whatever"?
Because before, you are advocating bigotry by yourself. Once you invoke the gay friend excuse, it sounds as if you are claiming that the gays have somehow given you permission to advocate bigotry.
Why is some handsoap labeled 'Antibacterial' and some aren't? Isn't all soap antibacterial? Isn't that the point of soap?
No, most soaps are just "release agents" which just help remove particulates without actually killing bacteria. Antibacterial soaps actually contain an antibiotic that kills the bacteria. Also you shouldn't use antibacterial soap all the time, it's bad for your immune system.
Differences in responsibilities between Sec. of Defense and the Joint Chiefs
The Joint Chiefs is a group of military advisors to the President. They have no operational authority or ability to command troops. The Secretary of Defense is the second in command of the United States military, after the president. They are the head of the Department of Defense.
If the (US) police arrest someone who is unconscious, would the arrest automatically be invalid because they weren't read their Miranda rights? Why or why not?
No. It's a common misconception that you have to be read your Miranda rights at the time of arrest. This isn't true. You have to be advised of your rights before you are _interogated_ by police, not arrested. If you are not, anything you say in that interrogation may not be admissible in court. In this case, since you can not be interrogated whilst unconscious, its a non issue.
Why do our voices sound different on recordings then they do when we hear ourselves speak?
Than? Basically, when you talk, you are mostly hearing what you sound like when the sound travels through your body..composed of bone, fat and meat. When you listen to a recording, you are hearing what your voice sounds like when it is traveling through airWhen you hear yourself speak, most of what you hear is your voice sound waves traveling through your body instead of the air. This makes it sound a lot different.
Why fogs from distance look very dense but when we are moving towards it we can see clearly to a certain extent?
When you're looking at things that are farther away, there's more fog to look through. Closer things don't have as much stuff in front of them to block your vision.
If I don't eat breakfast, I don't even get hungry for a while, but if I do, I get hungry before 11.
During a fast, such as the one that most of us enter during our nights sleep, the liver is basically providing the brain with glucose, fuel. When you wake up, your hormones dont change until you eat something. If you dont eat, glucagon stays high and your liver continues fasting state metabolism. When you do eat, insulin concentrations will increase, causing you to enter fed state metabolism. Breakfast is always talked about so much because when you first eat, you start re-fueling the livers supply of glucose . This however will make you hungry eventually. I myself, when skipping breakfast, can go almost a whole day without food, but it is not necessarily a good thing, just the way our bodies adapt. Source, currently studying dietetics and nutrition, senior year.I remember being told that when you sleep you enter a fasting state where your body kind of switches off your hunger feeling. When you wake up and eat breakfast you break this state so would just feel hungry again a few hours later when your stomach is empty. If you don't eat however you continue to fast. Edit: Similar question and answer here: _URL_0_
Why do humans have eyebrows? If they served a purpose, what was it?
They shade your eyes from the sun, help reduce glare off of objects, aid in communication by being expressive when we speak, and help to keep sweat out of your eyes.
Why is female toplessness considered nudity, when male toplessness is pretty much acceptable?
There is a documentary on reddit somewhere that shows a man undergoing a sex operation to become a woman. I think the video was hosted on youtube. The video shows the surgeon making the female breasts. At a apparently random point during the operation youtube censors the, now, female nipple. It's the same nipple! This makes no kind of sense.
Do you sweat underwater?
Yes, as long as your body is trying to shed heat it will sweat. You just won't notice because you are wet.
How can Alphabet make Google's life easier
It's basically taking all of Google's current child companies and moving them up a level, alongside Google rather than under it. So the old management structure may have looked like this: _URL_0_ Which doesn't make much sense if you think about it. Why should a biotech company be managed by a parent company that is mainly known for its search engine? So the new management structure will look like this: _URL_1_ Google is now just another project/product under the larger Alphabet parent company. Google can then operate more independently, to narrow its scope to focus on the services it offers. This also means the other companies under Alphabet's wing can be managed and run independently, all of them with a single entity to report to for transparency and accountability.
Why did the endless cascading of windows (such as the 'not responding' window)on older operating systems occur?
Windows didn't cache a windows pixels when something is placed above it. It simply asked the message handler to render that area of the window when the area was returned to the window. When the message handler is unable to execute this it keeps the pixels that were last rendered. A message handler can fail to handle the message due to a number of problems. Generally messages are placed in a queue for the program to read and execute, if the program stops pulling these out and reading them then windows can guess that the program is misbehaving.When something breaks in a computer, it goes to special code called an "exception handler". This code does things like pop up a "not responding" window, submit a bug report, and reset your computer to an unbroken state. Sometimes something breaks in the computer that the exception handler uses, this causes the exception handler to break and call another exception handler. Then that exception handler breaks and calls another one. This repeats until either your computer freezes or you get a blue screen of death .
How do cicadas "count out" their 17 year cycles?
They're not hibernating for 17 years, they're actively living underground and just reach maturity in 17 years.
Could a quantum supercomputer brute force 128 or 256 bit keys?
Quantum computers are fast because for certain kinds of computation, they can perform it with essentially infinite parallelism. In other words, instead of trying all 2^128 possible keys one at a time to brute force the correct key, a quantum computer could try all keys simultaneously. So current the current encryption methods aren't safe from quantum computers. But don't worry, quantum cryptography is a thing and there have been encryption algorithms developed that work even on quantum computers. But it still remains to be seen if true quantum computers are actually possible.Quantum computers aren't really faster than normal computers. Not in the sense of operating frequency or operations per second. The difference is that quantum computers calculate in a fundamentally different way which exploits probability at the quantum level. There exists a quantum algorithm called [Shor's algorithm] which can factor integers into their prime number factors in what's called polynomial time. What polynomial time represents is complicated, but the short of it is that things in polynomial time are possible to do with limited computational power and everything else is very nearly impossible. Prime factorization alone isn't spectacular until you realize that almost all cryptographic algorithms can be described as prime factorization problems. So the reason quantum computers break cryptography is because they unlock a new way to do computation that makes a once "impossible" problem possible.
What is a Half Life (not the game)
It's the time it takes for a radioactive sample to decay to half of its original amount. It's also sometimes used as the amount of time it takes for half of a certain drug or chemical to leave your body.
Why haven't any car manufacturers made a hybrid or "earth-friendly" vehicles that are appealing when it comes to looks/design?
Have you looked into the [Tesla Model S]?What "looks cool" is a matter of personal preference. What looks cool to you, may not look cool to me. On that note, Tesla makes some very aesthetically pleasing electric cars.Several manufacturers are now making hybrid versions of previously non-hybrid cars, that use the same bodies/shapes. For the first 5 years or so they were out, I agree completely, but that doesn't seem to be the case anymore. If anything, the ones that still look like that are still being made because some people seem to want their cars to look unique so everyone can see how green they are.
Why when looking out at the ocean from an airplane do the waves appear to not be moving at all, while other objects like cars are still in motion?
It's because your brain needs something relative to base the wave speed on. A car will look like it is moving relative to a road/landscape. Waves in an ocean have nothing for the brain to base the motion from, unlike waves on the shore. So unless there is a rock or something to break up the area and show motion, waves will appear stationary.Your background is non-moving on the land. So the movement of the car is more obvious. The ocean itself is in motion, so wave movement is not as apparent.You're usually at a much lower altitude when you can see individual cars compared to when you're flying over the ocean. The closer you are the more readily apparent any relative motion.This is due to 2 reasons a) If you move past objects of different distance to you, the near objects appear to move past you rather fast, while the further an object is away, the slower it seems to move. Commercial airplanes fly at an altitude of ~ 10-11 km, so the ground seems to move past very slowly. But this slow movement is not really observable, because:b) the texture of the ocean is very simple and redundant and also so far away that no remarkable spots or patterns are able to be seen from a plane, which means unless there is an island or a large boat you have no point of reference, meaning you cannot measure your change of position relative to it. Also long life pepe
Why does it matter that the NSA has access to private information?
there are many reasons, but one is that technology has advanced to the point where they can collect and keep massive amounts of data indefinitely. They get to collect all this information on you throughout your life. It doesn't require much effort to store all of this information. You may say, fine. I'm an upstanding citizen, i've got nothing to hide, i'm no bad guy etc. But you don't get to decide if you're a bad guy or not, they do. With this huge file of your life, if they need you to be a bad guy, they can read through this file until they find something you've done wrong, or something that they can twist into looking like you've done wrong. They could find out anything personal about you: where you spend your money, who you vote for, your sex life, anything embarrassing in your past. You don't have to have done anything wrong to have them spy on you. The idea is that they collect everything they can on everyone that they can, and if they ever need you to be a criminal, they can go through this folder and make you one. Also, what happens if the people in charge get replaced by even nastier people, who care even less about those they're in charge of? They can do much worse things with what they know about everybody.
Why do humans form bonds with animals so easily?
we're social animals, forming bonds with members of our tribe is important to survival. those mechanisms aren't so strict that it only works for humans.
Why are there things I want to do, but can't make myself do?
I guess it's a light form of procrastination: you're not actively resisting cleaning up, but subconsciously you're finding other things to do that would bring faster satisfaction: watch a movie, read a book, etc. To really get started on something you have to do, break it down into smallest steps, like in the case of cleaning, the first step might be to "just hang all the tees on their hangers," the second to "just put these books on their shelves." Your brain will think, fine, we'll just hang the tees and then we can go have a cookie. But once you're started, the satisfaction of having done something outweighs the satisfaction if having a cookie, and you'll most likely proceed to the next step, and to the next, shar then just get the while thing over with.I have heard that there is a form of thinking that causes a split between doing something and thinking about doing it. It's an actual neurological condition. It's like getting on a train at stop A and knowing that it is supposed to end at stop B, but there are no tracks between the stops.Because willpower requires energy! It is a finite resource that you exhaust during the day. See: _URL_0_', "The path of least resistance.Humans by nature are rather lazy, we do what we have to and little else. It's hard to drive yourself to do things. Once you start it is easy to keep going though. So starting a task is the hardest part. Basically laziness
Why are insects so annoyingly good at avoiding my swat attempts?
The species & offspring whose nervous systems didn't emphasize maneuverability and fast reflexes were swatted into extinction long ago.
Please explain how it's possible to 'go dark'. So, if I wanted to, I couldn't be traceable?
In short, "going dark" refer to making yourself unavailable via traditional means of communication. You relinquish all electronics, internet, radios, so forth so that you can't be reached by text, Facebook or otherwise. In order to live completely "in the dark" like this, you 'd also have to give up using credit cards, or banks in general, no car, or house. Those who are interested in living like this are usually on the run or in hiding from something or someone. Any detectable trace of their identity in the open world might lead to a dangerous situation for them. Some, however, do this out of paranoia as well. If you really wanted to be "untraceable", you 'd likely be looking at finding a remote area in the middle of some vast woods, build your own shelter, hunt and grow your own food and basically be content to live to survive. You wouldn't/couldn't have television, internet or even allow anyone else to be aware of your existence. You never go somewhere where your face might be caught on a security camera. You 'd have to be completely isolated and typically speaking, this isn't so easy to doStep One: Understand that this means your online life will be no more. No internet access ever. No electronic transactions ever. If you are fine with this then you can move on to the rest of it. But I doubt that this will be true.
Why can't we make a painkiller that isn't addictive?
We don't really understand addiction, lots of recent research suggests that addiction is not just a physical issue. Thousand of soldiers in Vietnam were using heroin, but stopped, did not go through withdrawal, when they came home. Plenty of people get high doses of pain killers in the hospital yet have no issues. Lots of evidences points to the conclusion that your environment leads to addiction. When you aren't fulfilled by connections with people and with life in general you turn to something to fill that void, but if that void is filled by something else you don't need it anymore. _URL_0_ This outlines what I have gone over but in a much more coherent and pretty way.
What would happen if all the bees were to extinct? How would that effect our food source?
Beekeeper here, this infact did happen in a region is china known for growing pears . All the blossoms must now be pollinated by hand. In short most fruits and veggies would disappear, many nuts. Many grasses used in Animal feed is similarly have trouble. There are a few fruits not pollinated by bees. The PawPaw tree is actually pollinated by fruitflies as honeybees are not indigenous to North America, the pawpaw has a slightly rotten smell to attract the flies. So as youve guessed our diets would have an extremely dynamic shift towards cereals and grainsWatch the Bee Movie with Jerry Seinfeld in it, that ecological science is flawless in that movie. Nah but what friend1949 said not all plants are pollinated by bees, and not all plants need stereotypical pollination. Nut and fruit trees often rely on birds or bats to carry their seeds or fruit and spread their species that way. Many grains are carried in the wind, like those santa beard things in december or dandelion spores. a lot of wildflowers in places where bees arent present actually rely ob butterflies or small birds to pollinate. Basically, if bees die out so will a lot of pretty flowers might become more scarce but more importantly, so will honey. And thats not a world im ready to live inI am glad that this is one of those impossible situations which generally are not permitted on ELI5. But it does have some underlying fundamental speculation about the world. There are many bees, honeybees, bumblebees, etc. Most of them fertilize flowers. Some flowers have to be fertilized by bees. Maybe some also get visited by hummingbirds or other creatures not generally thought of as pollinators. But extinguish the bees and there go the other species. No more almonds. Maybe no more clover. Maybe no more soybeans. I am sort of glad this is an impossible scenario. Wheat is wind pollinated. So it would be okay. Rice too. You can make a list. But it would wreck havoc with things.
What Did Aleister Crowley mean by "Do what Thou wilt" ?
Crowley believed that human beings each have an intrinsic purpose - a \'will\' - and that the pursuit of this purpose was the only constraint on action. When he says "Do what Thou wilt", he is saying that you need to act in accordance with your purpose. Note that it does *not* mean "do whatever you feel like", although many people interpret it this way. It also doesn't bear much similarity the the Wiccan "harm none, do what thou wilt" - which is an expression of the responsibility of individual morality.He meant if you can will it then you can perform it. It's all in the ability to visualize what changes you want to make in the world and then manipulate life through the use of various occult tools.
Why (and when) did mint become associated with holidays, mainly Christmas?
Mint is a hardy herb that can survive frost and even snow. I remember people keeping mint alive in Michigan winters just by clearing back the snow. I'm guessing this is connected to your answer.First time i here of this. Usually cinnamon is associated with Christmas.
Why the MLB does not have a salary cap
Because the rich teams like to treat the rest of the league as their farm system, and the players like being showered in money. Since a salary cap has to be part of the union agreement, they work together to make sure that never happensIf a baseball team is run like a company, the company is in its right to pay its workers as it see´s depending on the benefit that worker brings to the company, the company itself would either self regulate wages or fail if the wages are unbalanced as for the benefit the company receives from paying them out. TL;DR : If the team makes more money off the publicity and merchandising a high end player brings, it benefits them to pay them a higher wage to keep them happy.
At what point does a knife become a sword?
The transitions are a bit muddy and have shifted through history but a dagger is a double edged knife, a dirk is a dagger that is 6"-12" and a short sword is 1\'-2\' in length. Then you have numerous kinds of longer swords. But the answer to your question is 1\'No expert, but I would consider a blade to be a sword when its length makes it mechanically separate from your arm. Smaller blades can be thought of as an extension of your forearm—you are more likely to keep your wrist locked in order to use it properly. Past a certain length, it can be considered another segment of your arm, and can effect action through wrist movement.A knife is a sword when someone decides to call it a sword. There's a rough length guideline that can be followed beyond which calling something a knife is probably no longer appropriate, but the most important distinction would probably be that a knife is not intended to be a weapon of war- they are usually utilitarian in nature and designed to be used as such, with use in combat as a secondary concern. Swords, by contrast, are intended to see combat, to only be used for combat, and to be as effective at combat as possible.
Why is "empire" spelled with an "E" when the latin root is "imperator"
There is no international authority on how words are said or spelled. Dictionary spellings and definitions are merely accepted conventions that evolved organically over time and often there is no hard and fast answer for why a word is spelled or pronounced the way it is. People just did it that way. As for why it happened "originally?" The best answer is probably that most people were illiterate. Only learned scribes read and wrote, so the spoken word was transcribed however they saw fit to express the sounds with the letters they had. Through his interpretation of the letter he read or the sound he heard someone wrote down the word empire with an e. That's the version that got immortalizedFrom Middle English, from Old French, from Latin imperium, inperium \u200e, from imperare, inperare \u200e, from in \u200e + parare \u200e. edit: If youre wondering why we pronounce certain words in certain ways in general though, its because English is a Germanic language. Latin was not a germanic language. Words going between language groups are always altered to a degree. Its just the nature of things.
If I drive 5 miles going 40 mph vs. the same 5 miles going 80 mph, will one require more gas than the other?
The short answer is that at those speeds yes, air resistance increases and going 80 will take more fuel. If you stick your hand out of the car window when doing both of those speeds you will notice that the air pushes harder on your hand at 80mph. The car engine needs to output more power to hold the speed because the resistance is higher, and thus needs more fuel to do so. Now going slower using less fuel is not always true. With a modern car the highest fuel efficiency is somewhere around 35-40mph. If for example you did that 5 miles at 5 mph the car would actually use more fuel than at 40 miles per hour. This is because there is some base amount of energy the engine needs to just keep itself running and that becomes a much higher percentage of the total energy used to travel the set distanceJust to summarize some of the comments here. Two main factors affect fuel efficiency at different speeds: 1. Resistance - wind resistance is ~~exponential~~ **quadratic** with speed, so the faster you go, the more wind resistance there will be 2. Driving inside your powerbelt: This is the region where your engine is most efficient. Your car runs best when in the top gear with RPMs in the power belt. For most cars, this is 45-55 mph. A hybrid takes advantage of this by always running a small engine within its power-belt and using it to make electricity then converting the electricity back into moving your car forward. In general, a gas car is most efficient at 45-55 mph, which is why they usually have a higher "highway" than "city" mpg. A hybrid only needs to worry about wind resistance, so its "city" mpg is usually higher than "highway" .
How much is a human actually worth?
Yes. Healthy, working organs go for a nice chunk of change on the black market. The black market thrives due to people needing an organ donation but not wanting to wait on a list for years and years, because not enough people donate organs. The extent of how much this happens is unknown. It does happen, but it's not like there are roving gangs of thugs who will knock you down and steal your organs. As for the actual worth . are you talking mineral worth? Under $200 American, last I checked. For intact organs? Couple of hundred thousand American, depending on if you're male or female, your age, your blood type and your overall health.
Where did the Native American Indians that actually discovered our part of the world come from?
They were descendents from a group of humans that crossed from what is now Russia over to what is now Alaska. This happened 16k to 11k years ago. Eventually as the ice age ended sea levels rose leading to the land they crossed to end up under water. This meant the humans being able to populate the New World without interacting with the humans elsewhere. Columbus also wasn't the first European to come across the New World. Edit - It wasn't an ice bridge.
when a sudden cold gust of wind robs me of my breath, what's actually happening?
The cold gust of wind is stimulating the [mammalian diving reflex]. This is a autonomic nervous system response present in all mammals that slows the heart rate and breathing rate when your face is submerged in cold water. But a blast of very cold air can have the same effect.
It is recommended that you don't sit on a toilet for a long time but I sit in a chair all day at work, what's the difference?
While it is recommended that you don't sit down all day *at all*, a toilet seat is especially bad because your weight is concentrated on a relatively thin strip across your legs. This compresses the blood vessels and results in much worse blood flow compared to sitting in a normal chair.Because when you are on the toilet all pressure goes to your bowels in order to evacuate, and over time that consistent pressure inflames your blood vessels and can lead to permanent hemorrhoids.
In the wild, animals see brutal murder all the time, so why are humans so easily affected by tramautic events such as murder or rape?
Humans are highly social. In fact, it's conjectured that our brains went on a path of more advanced development than other primates because this permitted better interpersonal communication, allowing for more complex relationships and language, and this gave us a reproductive advantage. The flipside of this is that when social cohesion is greatly disrupted, it seriously affects individuals. When there is no social order, people don't know what to do. People are willing to do extraordinary things to protect the group and its structure--such as sacrificing themselves, or being willing to exterminate a rival group. Despite the costs to individuals, these habits have encouraged the survival of the species as a whole. Mental trauma is actually experienced by several other intelligent and highly social animals besides primates--elephants for example. The death of key figures in elephant communities can affect their behavior for a long time.
How do toilet bowls empty faster than the toilet tank can fill it?
Once the bowl outflow reaches critical siphon capacity, it creates a siphon that sucks the rest of the water outShort answer: the water is existing out a 3" hole and being filled with a .25" tube.
How is the National Guard getting activated for the Virgin Islands?
Uh, the US Virgin Islands has its own National Guard unit. The National Guard that's being activated to serve in the US Virgin Islands is probably the US Virgin Islands' National Guard. Do you have an article that suggests otherwise?
How can someone use bots to do things repeatedly on a website that would normally be limited to one action per user account, like voting in a poll?
Depends on the level of security implemented. If a site limits things to one action per session using php sessions or cookies to track this, it's not hard to clear cookies or reset a php session. If it's once per account, then the bot will attempt to create an account, perform the action, sign out, repeat. If things are limited by ip, the bot can attempt to release/renew their ip from their isp, this may very well not work, in which case the bot will attempt to perform the action through proxies, or the hacker will run a script a single time across many computers over a botnet. There may be other answers, but method for bypassing restrictions depends on implementation of restriction.
Why is the legal age of consent for sex less than the legal age to watch pornography?
Laws usually don't have to make sense. It is what the politicians and the lobbyists can make the people think are concerns.
Why is it that if I cook something in a deep fryer or oven, it gets crispy, but if I were to cook the same thing in a microwave, it gets mushy?
The crispy, burny flavor we all love so much is called a maillard reaction. The surface temperature of your food reaches a point where this begins to happen. Microwaves just superexcite the water molecules inside so you don't get the reaction.
Why is AC current better at long distances than DC?
**AC power can easily be transformed to a very high voltage.** * By the equation P = U*I we see an increase in voltage must lead to a decrease in current for the same power . * With Ohms law I = U / R, we can calculate the power loss in a resistance as: P_loss = R / or P_loss = R * I². In both forms in the second statement, we see it's beneficial to increase the voltage, and reduce the current. AC transformers exactly do this. DC transformers exist, but are still more expensive and harder to manufacture.
Why is it possible for a donkey and a horse to mate if they are two different species?
The ability to produce a hybrid species is not all that rare in the natural world. However, their differing number of chromosomes do make it so that mules are generally sterile. Edit: While it's often stated that the difference between 'species' is the inability to interbreed, that's not really accurate."Species" is not a naturally occurring set of distinctions. It's scientist's best guess at how organisms should be categorized. One species often seamlessly blends into another. Donkeys and horses are considered separate species because they are very different from one another. Their offspring are pretty much all sterile, so if you had a few hundred horses and a few hundred donkeys and put them together, you would not eventually end up with a homogeneous hybrid population.
Why was the moon red? .
The atmosphere will scatter light of lower wavelengths , which means that those colors won't pass straight through the atmosphere very well.Red light passes through fine, however, so when the earth starts to cast a shadow on the moon, light must pass through the Earth's atmosphere and the light that makes it through the best is red.
Why do men experience nausea when their testicles are struck?
There's a cluster of nerves that gives feeling to the testes as well as the liver, pancreas, stomach, gallbladder, and colon. So, getting hit in the balls will give you gastrointestinal symptoms like stomach pain, nausea, and vomiting, through reflex stimulation of this nerve cluster. In other words, some pain impulses race up to your brain to inform you that you've absorbed a jolt to the vitals, while others branch off to the gut and make you feel sick and possibly vomit, in case there was any lingering doubt.