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Explain the difference between confidence, overconfidence and low self confidence with respect to each other. What would be called confidence but not overconfidence? | Confidence is the certainty that, with planning, learning, or other preparation, you can do a thing. It accepts risks as well as the need for preparation. With failure, confidence does more preparation and tries again after an assessment of what factors went wrong. Over confidence is the belief that one does not need p... |
Why does Antisemitism only apply to Judaism when Christianity, Islam and Judaism are all considered Semetic Religions? | semitism", and "antisemitism" were used more broadly in the past, in modern times, they have been used exclusively to refer to the Jewish people and religion.Because Judaism is the only one that includes race/genetic components. of Judaism that accepts converts. For the rest, you must be of one of the twelve bloodlines... |
The best way to get past fear of side effects from a flu shot? (Anxiety disorder doesn’t need to make sense to work..) | Any medical procedure has some risk to you. Getting a vaccine has a ridiculously small risk or harm for one person, you. The possible bad things that can happen to you are relatively minor. You **not getting vaccinated** carries a small risk of harm to *everyone around you*. It may be still a very small risk, but multi... |
How ABS Braking system works as a safety mechanistic | The core reason is to do with different types of friction. Static friction is the maximum force a surface is able to apply to something sitting in it before it starts to slide while kinetic friction is the force the surface applies to something that is already sliding across it. Static friction is always larger than ki... |
How do they calculate how tall a dam needs to be once its made? | They survey the terrain to ensure that the spill-over point of the dam will be no higher than the ~~tallest~~ lowest solid landscape feature around the edge of the lake. So if the lake gets too high, it'll flow over the dam's spillway before flowing anywhere else. |
Why does everything taste awful for a bit after you brush your teeth? | Mixed flavors that don't go well together. Mint ham sandwich isn't something you would normally eat. |
At what point do you stop floating in space and start falling? | The key here is that 'floating' and 'falling' are the same thing. Astronauts on the ISS are constantly falling towards the earth. But they are moving so fast sideways, that their fall keeps missing the earth. This is what causes the ISS and all its inhabitants to orbit the earth. The astronaut in the gif attaches himse... |
What is Article 13 and why is it bad for the internet? | kermit throwing shade with tea", use copyrighted formats , so therefore such memes would be considered "banned". In addition, any copyrighted material must be licensed prior to being uploaded, so any "react to ABC" video or "people try this product XXX" would require that creators would be required to get a license of ... |
What exactly happens when one goes into shock and how is it treated? | Shock is when your brain isn't getting enough blood. You treat for shock by keeping the blood inside the body , laying the person down, elevating their legs, and keeping them warm. They need to see a doctor right away so call for an ambulance as soon as possible.The technical definition of shock is inadequate perfusion... |
How come a candle will release smoke immediately after being put out and not while it's burning? | Smoke is created when the fire does not completely burn the material. Just as you get less, and finer Ash from a hot flame, you get less smoke from a hot flame. If the fire is working best the result of fire from wood or wax is mostly carbon dioxide and water. What doesn't burn properly is left as very fine Ash and dus... |
How is a tooth or jaw ache medically related to heart disease/a cause of death? | Think of bacteria like Pokemon. They can be found in specific places, they are related to other species in a similar family, and they have certain predictable ways of attacking. Dental procedures, or infections and abscesses can help one such bacteria, Strep Viridans, enter the blood stream, and all blood goes to the h... |
why do things spinning fast look like they’re changing direction? | That has to do with frame rate. If a camera is running at sixty frames a second and the car's wheels are spinning at sixty rotations per second, the wheel will be in exactly the same position when the each frame is taken. The wheel then looks like it isn't moving while the whole vehicle moves forward. Likewise, if a wh... |
Why is the USA west coast so much warmer than the east coast? | Ahoy, fellow redditor. Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Why does the eastern half of the United States have colder winters than the western half? ] ^1. [ELI5: why east coast US cities on same latitude on west coast US cities have significantly colder winters ] ^1. [ELI5:Why doesn't ... |
Why are some countries able to have free health care? What is the simplest explanation for why this hasn’t been implemented in the US? | Simplest explanation why it hasn't been enacted in the US? Money and the fact that I surance companies love it. They love it so much they give it to lobbyists to bribe your congressman with so they can keep making it. |
Why do computers slow down as they age if the system software they use doesn't change much? | Windows system rot. The operating system is intentionally designed to gradually break down over time, encouraging users to spend money on new computers. Linux, from which most of the contributors are not making money, doesn't generally run into those kinds of issues. |
why non-human mammals stop drinking mother's milk. | Animals usually become lactose intolerant as they grow up. They can't drink milk from their mother because of a few reasons: 1. Momma don't live forever.2. Chuldren usually separate once they grow up, and live on their own.3. The amount of energy required to sustain oneself, as well as to produce milk *for an adult* is... |
Why do bodies in caskets look so different from when they were alive? | Usually their blood has been replaced with chemicals. No blood means no rosy skin tones. Muscles are non-existant because there is no blood or neural activity to keep the tendons tense and the muscles toned. The body's face has been caked with makeup so their skin looks plastered or painted, heavy with makeup that sits... |
how does digital information get saved on physical hardware (USB, CD,DVD, etc)? | Ok, so digital information is just 1's and 0's. Before USB's, CD's and those save icons we used to have [punch cards], and you could actually see the 1's and 0's. Basically, at any given spot, you punch a hole for a 1 and leave it like it is for a 0 . You can retrieve the information by looking at the card and the orde... |
How noise cancelling headphones work? | Think of sound as a simple sine wave. If you make a copy of that wave, then flip it upside down , when you add the two waves together they cancel each other out. Active noise cancelling systems use a microphone to pick up outside noise, which is then inverted and played through the headphones - this lets the inverted s... |
Why is there such a significant price gap between Canadian Crude Oil Prices and US Crude Oil Prices? | It's a function of both quality, cost to extract, and transportation cost. Not all crude oil is the same so you are not paying more for the same product. Cheaper crudes tend to have more undesirable byproducts like sulfur or nitrogen compounds. Also when the crude oil is refined, different crudes have different convers... |
Why do electronic devices (phones, laptops etc) have to be switched off during landing and take off when in an aircraft? | The general gist of it is in can interfere with the plane's instruments and signals. Mythbusters tested this theory as well as they could but due to FAA regulations, the plane had to stay grounded. They just rolled around on the tarmac. They found that electronics do not interfere, but it's still a requirement to turn ... |
Why is Jeremy Corbyn regarded as anti-semitic? | His criticism of Israel and inappropriate friendliness to Hamas are not the reasons why I'd considered him anti-Semitic. This, however, explains why his comments are anti-Semitic: > When he implies that, however long they have lived here, Jews are not fully British, he is using the language of classic pre-war European ... |
Why do certain hairs on the body stop growing a certain lengths, while others continuously grow? | All hair grows for some specific time, then drops off, and repeats. Hair doesn't know how long it is, but if you never cut your hair, it will basically become as long as it manages to grow to between dropping off cycles. For some hair which you try to keep shorter than this natural length, you just have to keep cutting... |
How were/are non native species of animals brought to a new area when that area is not connected by land? | Elusive for a sheep, which isn't very. They were likely captured by hunters with dogs and traps. The same was true for other animals. A ship in the medieval era was a self-sufficient city, especially one meant for colonization. They would load up with plants and animals and anything else they'd need to bring to the new... |
They say that fusion reactors can make more energy than it uses. But I thought it was impossible in physics to get more energy out of less energy? How is it possible? | You're right. This is the First Law of thermodynamics. However, they are talking about expending energy in order to set up the right environment for fusion to happen. A simple comparison is like lighting a matchstick to ignite a lump of coal. In the end, you will get a lot more energy from the coal compared to what you... |
When it comes to sending packets across the internet, how does a router know it has reached the right IP address? | Just picture a postal service. The IP is your address. So I write the address on a package and give it to the package handler so to say. He sends the package to the address . The package doesn't know it arrived. And yes, ips are unique. Some isps use shared ip-addresses but even then, inside you still have a unique IP ... |
Why does the inside of International Space Station (ISS) have zero gravity despite ISS being pulled by Earth's gravity | You're absolutely right that the ISS still feels almost the full force of gravity, Gravity has a 1/r^2 dependance from the centre of the earth and the difference between the surface of the earth and the ISS at ~400 km isn't much. EDIT: radius of earth is ~6,300 km so radius of ISS orbit is ~6,700 km The reason that the... |
Why when you learn a new word you suddenly see it used all the time? | I'm more concerned when one person I know uses an odd word a few times, then suddenly lots of other people, who don't know the first one, also start using it. It's very discombobulating |
Why can’t hurricanes hit land and turn into tornadoes or vice versa? | Hurricanes are huge weather systems that are hundreds of miles wide. Tornadoes are localized events within a larger weather system that are at their largest about 1 mile wide. Trying to take something that is 300 miles wide and force it into something that is 1/71,000th its size just because it travels over land isn't ... |
- How do eggs and sperm merge and when, precisely, is the unique DNA coded? | > Does this basically mean the sperm disintegrates, leaving only the DNA behind? Yes. The sperm's head has a covering called and acrosome. When the sperm hits the egg, the acrosome will release enzymes that try and eat its way into the egg. The first sperm that manages to do this triggers a reaction that depolarizes th... |
Would an airplane automatically fly after reaching a certain speed? | Quite possibly. But it very much depends on how the wing is oriented when an aircraft is resting on its wheels. There is a zero-lift axis for each wing, and if the wing is moving parallel to the direction of the zero-lift axis, then no lift is ever created. To make sure the aircraft will fly, the horizontal tail contro... |
How does Phantom vibration syndrome work? | We don't really know. It doesn't appear to have existed in the past but as no significant physiological reason for the change it is theorised that the sensation has always existed but was dismissed automatically by the brain. With the advent of pagers and later phones the sensation has become associated with the vibrat... |
How do gameshows obtain so much money to give away so often? | The main thing is that gameshows are MUCH cheaper to produce than a scripted series. You don't have to pay for actors, script writers, costumes, new sets, props, location shooting. Once you build the gameshow set, you're good to go. As such, the millions of dollars that would have gone towards all the expenses of filmi... |
With single digit percentages of the worlds water being “freshwater”, why don’t we take saltwater from the ocean and filter it to be safe to drink? | It's expensive, and generally 10-100 times cheaper to take groundwater. They do do it where water is particularly hard to come by . |
- Why do batteries take a long time to charge? | Electrons are moving from one side of the battery to the other side. When that happens the chemical composition of one side of the battery changes on both sides in what's called a oxidation/reduction reaction; for example, when iron rusts in water the iron gains an oxygen atom from the water and the water gains an elec... |
Light bulbs won't blow out when they're on for a long time, but then instantly will the next time you switch them on. Why? | I have seen light bulbs burn out while on, but they're more likely to blow out when your first turn them on because there is more of an initial shock as the filament suddenly goes from cold to hot.On of the major reson that incandescent light bulb dies it thermal expansion. Metal as most other material expands when the... |
if fire/extreme heat can make/change weather patterns, is the same true for the cold? | Totally! I think the issue is that there are things that can cause high amounts of heat , but, almost nothing that would 'produce' cold in the same way? Like, the extreme heat of CA fire changes patterns in such a way that some are hotter and others are colder, but, I don't know of a 'cold source' that would produce th... |
- How does Vitamin C boost my immune system? | There is little evidence that it prevents a cold or decreases the length or severity of the cold. Your body does use it for the immune system like for the membranes of cells and the lining of blood vessels. But once you get the recommended amount it doesn't create any more benefit. If you want the help your immune syst... |
How does an insect like a moth manage to fly in heavy rain? | Do they really fly in bad weather? I'm just guessing but they probably try to get to safety and wait it out", 'Some of them "roll with it" and survive by just absorbing the impact, like mosquitos. [NYT Science on Mosquitos and rain] |
Derrida's concept of Différance. | not in need" etc, etc, for ever.. It tells me how these words 'differ\' but that's negative, it can never actually get at the thing. We have these constellations of association and \'not this\' 'sort of like that\'. It's a play of 'defer\', too, that words have to say, "I'll let that one explain"-- the meaning is alway... |
Why do pictures taken of computer screens from a phone look so weird? | That's called a moiré pattern. It comes when two grids are overlapping and misaligned. [Relevant XKCD] |
- How do YouTube to MP3 Converters work? | To add to what others have said; & #x200B; The format the file is in also lends itself to splitting the audio off easily; most video formats store the audio as a separate stream alongside the video stream. These 'services' simply ignore the video stream and offer the audio stream separately. & #x200B; In other words; a... |
Why are there so few examples of advanced, large scale contruction/engineering feats from anicent North America as comapred to the Middle East and Asia? | There may have [been in Kansas]. But why aren't there more? A major thing to consider is that N American pre-history was *very* unstable. The notion of the 'peaceful, land-loving indian' is a Disney/romance-era meme that's completely detached from reality. A more accurate description was that land in N America during t... |
If condoms are still only 98% effective even when used perfectly, what is the “ineffective” 2% caused by? | Nah it's more like a 99% effective but they just can't say 100% because there is a chance the condom breaks or a manufacturer defect. At least that's what I've heard |
How does a hospital merger work in terms of staffing? | It's still possible to share staff, basically having someone at one hospital and being on call at the same time for the other hospital. It's actually a statistics problem more than a management problem. Assuming that at any given moment there's a 50% chance of someone being in the emergency room of Hospital A, the same... |
How can the global economy survive while most countries are in debt, and that debt continues to grow? | Debt isn't necessarily a bad thing. You may know that a strong economy relies on consumers buying things. When peopmenstop buying things is when an economy tanks. Debt allows people and businesses and countries to buy things they may not otherwise have been able to so some debt is good for an economy. Bad debt is when ... |
How does a computer restart automatically, just because I clicked "restart" versus "shutdown"? | When you turn your PC off it goes into what's called soft OFF. This means that the OS had time to wrap up what ever it was doing and save every thing so the main hardware is off. However there is a chip called the Cmos chip that houses the bios that has power all the time . When you hit the power button, the Cmos chip ... |
How can a country like Venezuela, with more oil than Saudi Arabia be broke? | Venezuela was living large when oil was trading at $100+ per barrel, but then the prices dropped significantly and sat near $50/barrel for a couple years before beginning to climb back up recently If you balanced your books and were spending 80% of your income in a good period, but then due to changes in market prices ... |
Why do some reality shows sometimes blur logos? | If it's the BBC then they have to give all companies equal space and time, so if someone wheres a Nike cap, then they'd have to show Adidas and Puma and every other sports company too. If it's any other channel they just do't want to give free advertising.Because it’s easier and cheaper to blur out the Coca-Cola logo t... |
Why is a 4-digit code sufficient for banking purposes but not for most online accounts?ELI5: | I'm not really an expert on bank security, and I personally find the 4 digit pin outdated too, but there are more factors that you have to account for. Most important is probably that your bank is always in control of your account, and they are in direct contact with you as a person. Even if something happens, the bank... |
Which component(s) primarily cause your phone to slow down over time? | Nothing in particular. Computers don't really get slower with time, they might stop working all together from age but no component really degrades progressively. At most, the battery does this, slowly losing max charge over time, but that just means your charge doesn't last as long. Your phone just is getting new updat... |
Chiropractic, is it actually helpful, or just pseudoscience? | No science, just another idea someone thought up to make money, similar to osteopathic and homeopathic. That said, this doesn't mean they have no value at all. The placebo effect is powerful and can help where modern medicine can't. Similarly it is possible that chiropractic can help with some lower back issues more by... |
How do suppressors actually work? | When you shoot a gun, out of the barrel comes a bright flash and a bit of gas. And the bullet, of course. A suppressor is essentially a tin can with a few angled plates in it, which have holes in the centre for the bullet to pass through. The flash and the gas however, sorta get held up in all the angled plates, so you... |
How did the Big Bang happen? (For my 6 and 4 year olds) | If you want to explain the expansion of space, it's easiest with a balloon. 1. Inflate just enough to have a smooth surface 2. Draw some dots on the surface of the balloon and have your kids picture the two-dimensional surface of the balloon as the entire universe. Maybe measure the distance between the dots to make th... |
Can you drink 8 glasses of other liquid (milk, soda etc) instead of water per day? | Yes, you can drink other liquids. You don't even need to drink glasses of water. You can eat fruits and vegetables because they have lots of water in them. Milk, juice, and other beverages are all just water with some proteins, fats, carbohydrates, etc. floating around inside. It's still almost all water. Just look out... |
If 2 rivers meet, who decides which one is the main river and which one a tributary, on what basis? | When Lewis and Clark were navigating their way west, their technique when arriving at a confluence was typically to send a team up each branch and a team would setup camp near the confluence. The separate teams would proceed upriver a number of miles, taking measurements of average streambed width, depth and estimation... |
Why do touchscreens stop working under excessive heat? | Huh, interesting. Never actually experienced the problem you described, it's always the opposite for me - when I leave my phone overnight with a window wide open, so it's cold in the room, the sensor takes some warming up for it to work properly, otherwise I can't swipe because the line breaks mid-word, and it generall... |
how do deep sea creatures survive under the enormous pressure? | It's true that there is enormous pressure pushing on them from the outside, but there is just as enormous pressure inside them pushing back. Absolute pressures aren't really what matters when it comes to things getting squished, what's important is the difference in pressure between the inside and outside of the thing.... |
How is it possible for free divers to dive to deep depths while holding their breath for so long and be able to decompress their lungs when they have to ascend back to the surface? | In scuba, you are breathing compressed air, a special regulator adjusts the pressure to match your depth. The pressure at 10 m is about twice normal, so you need twice the pressure. It is this pressure that leads to decompression sickness. Under pressure, your body, your blood in particular, can absorb more nitrogen an... |
Why can't we insert a giant set of parachutes and detach a plane's body of the rest in a case of a plane falling? | They actually make them for small single-engine planes. The primary issue is one of weight. In order to be able to safely protect something as heavy as the body of a modern jet liner, the chutes would have to be so massive that the extra weight would make operating the plane untenable. Given the extremely low occurrenc... |
Body in space without a suit | Vsauce did a good video on this very topic. I believe the time alive is under a minute. He goes on to explain how your blood/saliva would start to boil, then you exhale/expend all gasses and air from your body at once. I'm going to find the link and send it to you here, it's a good watch. Edit: here ya go _URL_1_ |
Do the bacteria in our mouths that cause plaque and tooth decay/gum disease have a useful purpose? | The biofilm they create gives a small amount of protection against acidic foods. Bacteria in our mouths didn't really pose a large threat until we started eating large amounts of carbs like sugar and bread |
What is happening when there is microphone feedback? | There's a very slight delay between the microphone and the speaker. Then there's a speed-of-sound delay between the speaker and the microphone. This allows a sound signal to enter the microphone, get amplified at the speaker, *re-enter* the microphone, get amplified *again*, and keep looping at the speed of sound until... |
How are sites like ThePirateBay still up? | They are relatively cheap to start up and maintain but very expensive to investigate, gather evidence against and shut down permanently . The government whose jurisdiction in which it is hosted probably doesn't see enough financial/political incentive to warrant even discussing an investigation. If you think copyright ... |
Why don’t we have free energy today if Tesla discovered the rotating magnetic field can provide free energy for the entire planet back in 1882? | Tesla didn't really discover that. He said that humanity needed to use existing sources of energy, like thermal and magnetic. That's pretty green, and the subsequent discovery of the photoelectric effect allows direct conversion from sunlight into power, which no doubt Tesla would have approved of. The Wardenclyffe Pro... |
Why hasn't the voice quality of phone calls improved? | Assuming you're talking about cell phones: Because there hasn't been enough consumer complaints/demands to make it happen. For most people, it's good enough. Besides the fact that less and less people even talk on the phone and instead rely totally on texting or some other form of internet messaging. |
What are the ins and outs of purchasing a new/used car? | I spent this summer buying two used cars . See if you can find out what is required to have the safetied to get it on the road. In Ontario, Canada you can download the extensive list that causes a fail. If there's rust where its $$$$$ to fix, walk away. If its in the country, look for mouse nests and accumulation of de... |
dude perfect, how they make all those trick shots | You don't get to see all of the failed attempts. Try something really difficult or improbable enough times and and success becomes a lot more likely. |
How does a blender mix all of its contents when it is filled to the top if the blade is only small and at the bottom? | I'm pretty sure the blades are angled to push whatever they are blending downwards, causing the material to cycle |
Why is it that when you put pressure on your eyeball’s corners, you can see something that looks similar to the iris of an eye opposite the side you’re pressing on? | Your eye acts as an inverted camera. The inside of your eye acts as the sensor or film for the light that enters it. If you drew a line from an object to the top of your eye through your pupil, it would hit the bottom of the inside of your eye. Likewise, a line from an object on the right goes through your pupil to hit... |
If earth has the perfect conditions for life to form, then why is all life the result of a single genesis event and not many? | The perfect conditions for life to form require an accumulation of various chemicals that are useful for life, but once life exists, it destroys these conditions by consuming all that's easily consumable. If we'd want to replicate those conditions like that nowadays, we'd need to create an sterile environment empty of ... |
why are the bones of our fingers and toes much longer than the toe/finger itself? | Those aren't finger bones or toe bones The long ones inside the hand are metacarpals, and in the feet metatarsals. The reason they're there is because you need a solid bone connection to your fingers, to anchor them in place and to create a joint so your fingers can move. If they weren't there as an anchorpoint you'd p... |
How does a car seat belt differentiate between when a person leans forward quickly vs. the car breaking? | The way the locking mechanism works is based on acceleration. Imagine there is a ball on a string inside the door. When the ball hangs straight down, the seatbelt is unlocked. When it is displaced too much, the seatbelt locks. When the car traveling at a constant speed and is not accelerating/decelerating, the ball han... |
is it tobogganist or tobogganer? Not really, that’s an example - what, if any, are the rules regarding -er or -ist in English. | If it ends in a vowel then you drop the vowel and it becomes -ist. If it ends in a consonant then it becomes -er unless the vowel is an 'e' in which case it becomes -er. For example: Piano ends in a vowel that's not 'e' so the 'o' is dropped and it becomes pianist. Football ends in a consonant so it becomes footballer.... |
Benefits and disadvantages of a country having it's own currency. | When you have your own currency, you are in control of your own monetary policy. Your central bank can set interest rates to each combat local inflation or promote local employment . When you are using someone else's currency, you don't have control. A central bank in a foreign country may decide to tighten their monet... |
Why do our forearms and calves consist of a split bone/two bones? | An interesting evolution/anatomy note: All tetrapods have the same [limb structure]; one long bone connected a joint connected to two parallel long bones connected to a joint to a bunch of little bones. In humans the arm consists of the humerus, elbow, ulna, radius, wrist and hand/fingers. Similarly the leg consists of... |
Why do those yellow things form in the corner of your eyes when you sleep? | My kid doesn't get them in the corners of her eyes but more so in her lashes . Does anyone know if those are the same things? |
Why is white pride racist, when no other "colour" pride is considered racist? | Simple thing I'd like to answer to some of these answers. Usually it is safe to have pride in your ethnicity and not your race. The difference with black people is that Americans stole their heritage through slavery to the point where many black people can't trace their ancestry and specific ethnicities back like white... |
Why do large, orbital structures such as accretion discs, spiral galaxies, planetary rings, etc, tend to form in a 2d disc instead of a 3d sphere/cloud? | The orbiting objects have a single combined angular momentum that remains constant. Angular momentum is basically a direction that everything is moving in if you add up the movements of all the objects. In a 3-dimensional space, that net angular momentum can only spin along a single plane. The movement to each side of ... |
why does slouching feel comfortable if it is a bad position for our backs | Because you're relying on things in your spine that aren't intended for load-bearing and which don't repair themselves well for extended periods of time to support your weight instead of muscles, which do repair themselves but take effort to use. It's bad but feels good because you're not expending energy but it's bad ... |
Pleas explain how trading options workout and why isn't a betting of sorts? | I've had various forms of investments my entire adult life. Even with the most thorough research using the best available information, ALL investing is, at its heart, a gamble. Sometimes you win, sometimes you lose. Just don't be caught using Gray's Sports Almanac like Martha Stewart did. |
When we charge batteries, do they get heavier? | Charging a battery doesn't change the number of electrons present, so there will be no change of mass for that reason. Charging does increase a battery's potential energy, so that would cause its mass to increase due to E=mc^, but the effect is so slight that it will be impossible to measure. There are bound to be ordi... |
How is it that when fans spin fast enough the blades looks like they disappeared and we can see right through it. Why dont they form a "wall" of blades? | What the brain see, the brain remembers. So, when it sees the background sweep past through the blades, it'll add that infromation in when the blade isn't there. Why doesn't it do the opposite, and fill in the blades? Well, the blades are pretty uninteresting, and as they move fast, you never get a sharp picture of the... |
Why is tea (and coffee) so popular and important to so many different cultures? | I just think that tea's small buzz is a nice, unhindering way to guarantee a few minutes of attentiveness with company. Once the cup is finished, you're free of your company's grasp and can each move-on with your day. It wouldn't be the same snorting lines of Molly with your boss over lunch break. That would likely rui... |
Why can cars get towed so easily? Don't parking brakes and steering wheel locks stop that kind of thing? | Generally tow truck drivers know if a car is front or rear wheel drive, and will try and pick it up accordingly. Obviously there are some drivers who don't care and will pick up from whatever direction is easiest. In a front wheel drive car, when the car is in park, a little arm in the transmission stops the gears and ... |
how electric vehicles are more environmentally friendly than combustion engine cars. | An EV has a slightly higher manufacturing footprint then a gas powered car. But this is not as high as some people claim. In the Union of Concerned Scientists study below they estimate it to be 15 percent more then a gas powered car. But this extra footprint is made up quickly in operation since an EV is so much more e... |
Why do batteries charge faster than they deplete? | They don't. Really, batteries don't charge, we charge them. What I mean by that is that it's not the battery what decides how fast it charges, the charger does, and there are both slow and fast ones. Typically we want our devices to last as long as possible, and to be recharged as fast as possible. But there are except... |
Why are animals like birds and monkeys much louder than humans, even though their bodies and airways are much smaller than humans? | Humans get pretty loud. Try it out. Take a deep breath then let out the loudest full blast scream you can. We just don't use it.i want to add that if you think humans aren’t loud, wait until you have a baby. i feel like i have hearing loss/damage from how loud a baby is when crying. |
Why do so many think giving your ID before voting is a bad thing? | It's not necessarily that providing an ID is a negative. It's that, historically, attempts to make providing an ID mandatory have gone hand in hand with attempts to make *an ID harder to gain access to.* For instance, by closing DMVs in impoverished areas, forcing poor people without access to a car, and often without ... |
How do new currency counterfeit prevention measures work if we still accept old currency? Can't counterfeiters just make fakes of old currency? | Eventually the bills are phased out and not traded any longer. Banks will turn them in for new bills and the number in circulation drops off into non-existence. So even though a circa 1940 dollar is still legal tender and to be accepted, seeing someone show up in your town with a stack of crisp, new bills of that style... |
How can animals sense before a natural disaster happens, and why can't humans? | Humans are not very involved with their environment. They wear clothes, particularly shoes, to insulate them from the Earth. They build and occupy buildings, though that protection comes at a cost of cutting off sounds and wind shifts. And humans are always staring at their smartphones. Animals are much more involved i... |
How does the “morning after pill” work? I know that it’s a form of termination, instead of a form of contraception... but how does it work? | It's not a form of termination per se. It's a high dose of hormones intended to thicken the uterine lining and prevent implantation, or by thickening the cervical mucus to prevent fertilization. _URL_0_ |
Hosting a website and domains | I've used go daddy before and I haven't had a problem. They actually offer a $12/year deal with Linux hosting and a free domain. One big problem with the free domain from go daddy is that by default it exposes your registration information unless you pay more. You can use 2 domains to connect to one website but one of ... |
How grocery stores maintain profit/stay in buisness even though it seems like most of their stock never gets purchased. | Chances are its an effective team. I work in a store and we get stock out regularly or if there's just a single item we be in just that box out put whats needed out and take it back.General retail wisdom is that empty shelves = shit store, so store rank & file are never bored. Cashiers working slow lanes are often pull... |
Why is it so hard to produce an alcohol-free beer that tastes like the real thing? | Because the methods of removing alcohol change flavor. You can heat distill, which drives off volatile compounds and alters flavor. You can vacuum distill, which provides better results, but requires more equipment and cost. Reverse osmosis can be used, which is much higher cost.Two of them produce pretty decent result... |
What is "2020 vision" and how can someone have vision better than 2020? | It's just a reference to the focus and clarity of your vision.The first number is your distance from the eye chart, and 20 is the average distance at which an average person can read the same line you get to. I actually have one eye at 20/20, and the other better than 20/20. |
Is there such a thing as a perfect circle? | Nope. Nothings perfect, but also the closest thing we can make to 2D is an object with 1 atoms thickness, which still isn't 2D etc etc pedantry |
Ice in men's urinals/pee troughs? | In restaurants they usually dump them on the urinal since it's the easiest way to dispose of them. Pee is warm too so it helps it melt. |
how the physics of a water pipe works | When you pull on it, you're pulling air through the pipe. The air goes through the water in bubbles, as air does. The smoke is in these air bubbles as it's pulled through. |
How does your stomach know when the food is bad and decides to stop processing and starting pushing it back where it came from? | Most foodborne diseases take at least 24 hours to produce an effective dose, unless it is fucking rancid, which if you eat, is clearly a net gain for the gene pool. What normally happens is that you eat some contaminated food, but there is not enough pathogen to hurt you. However the stomach is a wonderful place for so... |
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