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|---|---|---|
Can you walk on Mars with just a scuba tank? | [
"No. The key purpose of the space suit is not to provide you oxygen to breathe, but rather to maintain a safe air-pressure level. The pressure on Mars is extremely low, 0.6% of Earth's. This will cause the gasses in your bodies to expand. This is extremely uncomfortable and can quickly lead to death. If one is hol... | [
"My money is on suffocation assuming the suit kept your temperature up well enough. Or CO2 poisoning if you want to be more specific."
] |
Does gravity deform the 3d space into real forth dimension or it is just a mathematical description? | [
"How do you tell the difference between a \"mathematical apparatus that works\" and something that is \"really real\"?"
] | [
"1 dimension) meet me at Bologna St. Needs more information. 2 dimensions) meet me at the corner of Bologna St. and Cheese St. Now you know you're in the general vicinity of where you need to be. 3 dimensions) meet me on the 3rd floor of the office building at the corner of Bologna St. and Cheese St. Great, now you... |
How does navigation work at/around the north/south pole? | [
"The magnetic north pole is not at the point of the geographic north pole anyway. A compass close to the poles doesn't show in the direction you might expect, and it will struggle pointing in a consistent direction if you are too far north/south. You can still use the stars for navigation, but GPS is more convenien... | [
"The same way they do now: using satellite and microwave transmissions. Using the internet is kind of sketchy, because of a lack of control of the bandwidth that can cause the connection quality to drop, which is why other technologies are preferred when feasible."
] |
Why is there a Holy Bible in every American hotel? | [
"[there's a non-profit which exists to distribute bibles to hotels.](_URL_0_) It's a way of proselytizing."
] | [
"\"Just about everyone here\" Where is \"here\" for you? It sounds like your question's premise is based on a small sample set based on personal observation. Before your question is addressed, you should be making sure the premise is valid..."
] |
What would happen if you placed a hydrogen atom rather then protons in a super collider? | [
"There would be a huge protest by scientists and funding agencies as the LHC mysteriously shuts down and stops producing results. Particle accelerators accelerate particles using a changing magnetic field or electric field. Since hydrogen is neutral, it can not be accelerated using the equipment at the LHC. If yo... | [
"The cells that make up your body divide and multiply as a normal part of your life. When you have cancer, though, it causes your cells to go crazy and multiply out of control. *Chemotherapy*, the special name for the medicines that are used to fight cancer, works by killing cells that multiply quickly. For the mos... |
why did the US army publish the story about destroying ISIS HQ after appearing in a selfie? | [
"The problem with ISIS is that they have really effective recruiting. The military kills one member and they recruit two more to take their place. Just getting information from social media to help them take out members of ISIS isn't a winning strategy. However, if they can convince them that using social media wil... | [
"*Respected* news sites won't buy photos from a source they have not vetted and is known to be reliable. If they post unverified photos, they will make this clear using words like \"Alleged\" and \"Not independently verified\"."
] |
How was it possible for the pyramids to built built? | [
"Nobody completely knows for certain, although there are a lot of theories. From my perspective, probably the single most compelling is Jean-Pierre Houdin's internal ramp model. It accounts for a definite purpose for the internal chambers of the great pyramid, and many of the previously inexplicable anomalies such ... | [
"Back then people still needed jobs, now they dont and can practice harder for longer. And science helps by showing then methods on improving motions. You cam find cool videos on youtube"
] |
How do rice cookers know when the rice is done? | [
"It's all based on the temperature of boiling water. See, when you heat water, it doesn't really go over 100C (212F) - it just turns to steam and evaporates. Once most of the liquid water has evaporated, the temperature quickly shoots up. There's a thermostat inside the rice cooker that tells it to cut heat when th... | [
"It basically has a list, if it doesnt have the answer, it asks other dns servers untill one does, or it figures out that the server doesnt exist"
] |
What causes stomach ulcers and after they are healed, what causes flare-ups? | [
"There's a type of bacteria that can cause them, can't remember the exact name, heliobactorpylori or some such. Otherwise excessive alcohol, coffee, energy drinks, soda etc can all cause them I believe, and can cause them to flare up."
] | [
"It’s based on the price of oil. The price of oil is based on a lot of things, but simply put, supply and demand. As the global population grows, so does demand. As technology advances, so does supply. Depending on which of these is progressing faster you’ll see the price of oil and therefore gas change. Furtherm... |
What is it about smoking cigarettes/tobacco/nicotine that actually harms your body? | [
"A lot of it is inhaling a burning plant. While vaping isn’t harmless, that’s the big difference in what chemicals are being ingested. Nicotine is a stimulant, so on one hand it’s like caffeine but it’s far more addictive. It’s incredibly difficult to deal with nicotine addiction. This makes nicotine withdrawal to... | [
"It varies, but not much individually. The problem is when everyone does it. It's kind of like why you're taught not to pick a flower from a garden when growing up. You alone, picking one flower, is not going to be noticed, it's not going to affect the plant or garden overall, but if *everyone* picks just 1, very s... |
Why do only stars have refraction spikes (in this image)? | [
"Galaxies don't have them because they are not point sources; that is, they are large enough to be resolved by the telescope on the sky, while stars are too small for the telescope to resolve. As a result, the stars have the shape of the [point spread function](_URL_0_) of the instrument. The galaxies are also conv... | [
"This is related to a classical \"paradox\". Basically, you can't spin the record up, it will necessarily break. The (very difficult to grasp intuitively, IMO) fundamental concept at play here is that in a corotating reference frame constant time slices are *non-euclidean*. So trying to boost a static disk to rotat... |
How middle names came about. | [
"In most cultures, names are for A) Identifying an individual and B) Identifying the individual's lineage. So for example, in Pakistan, a person called \"Mohammad Adil Abbasi \" is generally so named because - his father's name was Muhammad - his name is Adil - he is from the \"Abbasi\" family or tribe so it's kind... | [
"I seem to remember reading that it was down to having a layer in between clothes you would wear for multiple days and those you could wash/change on a regular basis so the outer clothes stayed fresher for longer."
] |
American politicians always talk about millionaires and billionaires paying less in taxes than everyone else (or even not paying taxes). How is this possible? | [
"Less as a percentage, generally. The easiest way this can be done is by a very rich person who gains most of their money by playing the stock market. The money earned that way is taxed at only 15%*, while income earned (through normal means) between 75k and 150k (if you're married) is taxed at 25%. So you don't ha... | [
"Penn & Teller: Bullshit! did a show on this, its very worth a watch, they break it down quite well and understandable. [Link to the full episode](_URL_0_) on youtube. Warning, NSFW language and boobies in like the first 2 seconds, because its Penn & Teller and thats what they do"
] |
If I drop a ball such that it falls randomly into one of 3 boxes, how many drops on average until each box has at least 100 balls in it? | [
"A few of us panellists have been trying to work out the proper general solution to this, but we've not quite got there yet - it's not as simple as working out how many trials to get N_success=100 for p=(1/3), as the events aren't independent. What might spur a few more mathematically minded people is the numerical... | [
"In pharmacology the figures of [EC50](_URL_3_) and [IC50](_URL_2_) are measures of how much of a substance is required to induce a desired effect or to inhibit function. These numbers vary a lot depending on the site of action, nature of the pharmacological compound, type of interaction, etc. It is all covered und... |
If an atomic warhead detonates while the missile is flying at 1,000 mph, do we get a nuclear explosion moving at 1,000 mph? | [
"Yes and no. The amount of energy released by a nuclear weapon far outstrips the kinetic energy it had by flying at 1000mph. This really muddies any measurement you might make about the movement of the plume. Will you get a 1000mph flamethrower that carves out a wide swath of death and destruction? No. Will the bo... | [
"Both special relativity and general relativity affect clock rates. * **Special relativity:** Faster moving clocks run more slowly, so a low orbit (fast moving) clock runs more slowly than a high orbit (slow moving) clock or than a stationary clock on the Earth. * **General relativity:** Low altitude clocks run mor... |
Organic vs natural foods, and their pros/cons? | [
"[I found a neat little picture for ya :)))](_URL_0_)"
] | [
"There is a major difference and that is that the program was downloaded and executed automatically when you loaded a web page. You need to download and install regular programs so is it a lot harder to convince someone do that compare to be executed automatically. The page was not necessary one that that the hacke... |
If ice is just water in its solid state why does it float? | [
"The only thing that governs whether something floats or sinks in something else is the density. Almost all substances, liquid water included, have a positive [coefficient of thermal expansion](_URL_0_), meaning as they warm up they get less dense, and vice versa. Warm water \"floats\" above cold water because the ... | [
"The co2 that gives the soda its fizz has leeched out of the liquid. Co2 in soda is under pressure so when you freeze it the co2 is pushed out of the water leaving it to taste flat"
] |
What is a driving license "penalty point" in the UK, and how could you "accept" them from someone else? | [
"He was issued a fine and penalty points because his car was caught by an automated speed camera. He then got his wife to claim that she was driving the car at the time of the offence so she got the points instead."
] | [
"**Current law**: Amount of current entering a junction (the place where two or more wires meet) is the same as the amount of current leaving the junction. **Analogy**: Think of a busy traffic intersection where many roads meet. On any given day, the total number of cars that have arrived at the intersection will ... |
Why can't Allied forces bomb these long ISIS military parades we see pictures/video of. | [
"They just keep forgetting to apply for the permits, so there is no way of knowing where the next parade will be held, whether it will be large enough to warrant bombing or just strafing. Damn terrorists."
] | [
"One thing to point out is the terrain. Iraq is in the populous parts of the country pretty flat, with a semi good road network across the country making it easy to move people around, and larger cities and towns to organize around. Afghanistan is some of the most inhospitable terrain on earth. With little nation... |
Why can i pick up AM stations from long distances at night? | [
"\"During the day, MF (medium frequency) signals travel by groundwave, diffracting around the curve of the earth over a distance up to a few hundred miles (or kilometers) from the signal transmitter. However, after sunset, changes in the ionosphere cause MF signals to travel by skywave, enabling radio stations to b... | [
"This is a more scientific answer than it sounds: it's all in your head. Try having a friend hold a pen there randomly half of the time. You guess when it's there, the more you guess the closer to chance you should get."
] |
How can ocean mammals drink the water? | [
"In general, they don't. While they may take some in on occasion, it's a small amount and is filtered by the kidneys. Most of their dietary water requirement comes from the food they eat. Seals will eat snow sometimes, and manatees (which like in brackish water) will look for fresh water to drink. But purely marine... | [
"Here is a link to help. They basically have a tube that is separate from their throat, so they do not choke [click here](_URL_0_)"
] |
When we look out at the sky, why do we see so little stars? | [
"Signal to noise ratio. If the light from a city shining off the atmosphere directs 100 brightness units toward your eye from the direction of the star, and the star directs 1 brightness unit towards your eye, you cannot distinguish that the star is there. It is same reason you cannot see anything if someone shines... | [
"This isn't ELI5, but near-sightedness has been on the rise since [at least the 70s](_URL_1_). In some Asian cities, myopia among youth is as high as [90%](_URL_0_). While genetics is a factor, how much sunlight you get as a child seems to be an important determinant in whether you develop eyesight problems or not.... |
What is a Fibonacci Sequence? | [
"A sequence of numbers, starting with 0, 1 where every subsequent number is the sum of the two previous numbers. 0 1 0+1=1 1+1=2 2+1=3 3+2=5 5+3=8 8+5=13 and so on. Hence, the Fibonacci sequence starts 1,1,2,3,5,8,13... Edit: realised 5+8 != 11. I'm an idiot."
] | [
"I heard its supposed to be the ass of a bent over woman but I don't know if that's true."
] |
What cool/important items are in the Vatican Library and secret archives? | [
"I'm afraid real life is less exciting than the Da Vinci Code. Wikipedia gives you the right answer to both questions. The Vatican Library has a wonderfully important collection of historical texts, that they encourage qualified scholars to visit. It isn't keeping anything hidden. The unfortunately named secret arc... | [
"internet locations that aren't accessed or indexed by search engines like google. it's like an elite nightclub: you only can find it if you already know where to go, you won't ever \"stumble\" upon it."
] |
In a monosaccharide - monosaccharide dehydration synthesis, what determines the molecule that loses the O and what loses the OH? | [
"The [reducing sugar](_URL_1_) is the one that loses the oxygen. The reaction is basically forming an [acetal](_URL_2_) from a [hemiacetal](_URL_0_). Here is the relevant quote from the Wikipedia page for acetal: > Formation of an acetal occurs when the hydroxyl group of a hemiacetal becomes protonated and is lost... | [
"A simpler explanation of why one-time pad encryption can't be cracked: Let's say our adversary is sending encrypted text messages in English. With most encryption systems, you can try decrypting that message with every possible key. Most keys will just give you random-looking characters, and one will give you a pr... |
Why can NFL kickers kick the ball so much farther on kickoff verse a field goal? | [
"Because the kicker gets a much bigger run-up to the ball during a kickoff"
] | [
"Since ticket prices can vary, especially internationally, for financial purposes the box office gross is easier to compare to the cost of making the movie?"
] |
What is the difference between a sword phalanx and a shield wall in the early middle ages? | [
"The words \"phalanx\" and \"shieldwall\" are just terms for a general close order formation where each warrior is grouped in tightly next to the other. However, while every shieldwall is a phalanx, not every phalanx is a shield wall. The term shield wall is used for when the warriors have shields, which overlap on... | [
"Ease of use. Becoming proficient with a bow could take years and requires a certain amount of strength. You could teach someone to use a musket in a fraction of the time."
] |
How does a chameleon's camouflage system work? | [
"I should mention chameleon's don't use it for camouflage. It's a way of expressing things like anger and desire to mate."
] | [
"_URL_0_ The wikipedia article is excellent and better than any of the answers in here so far. If you have specific parts you don't understand, ask away and I can help explain them to you."
] |
Why is the pound stronger than the dollar even though the US has a larger economy? | [
"What exactly do you mean with 'stronger'? The exchange rate has nothing to do with a currencies strength."
] | [
"Churchill had arranged operation Fish, having all the wealth of the UK (gold, securities) moved to Canada. The gold was to be kept in Ottawa and the securities under the Sun life building in Montréal. The British thought that Canada was a safest place for their gold. One might speculate that in case of imminent in... |
Can we examine the time history of objects in the universe by changing the magnification of our telescopes? | [
"No. Light reaches us at a constant rate. We can not look past the current light to see light that is farther away. That earlier light is not here yet so we can not yet see it. There is one exception that I know of: Gravitational Lensing. Where light's direction is changed due to an object between us and the light... | [
"Imagine you made a painting out of little colored plastic squares (a mosaic). To zoom in on the picture would be just getting closer to it. Would you see more detail? No, the individual squares would just be bigger and easier to distinguish from each other. There is no more information to gain by looking closer."
... |
How Do Some HOA's Get Away Charging $300+/mo? | [
"HOAs are voluntary. When you buy a house it will tell you if the property is a part of an HOA or not and purchasing the house is agreeing to the terms of the HOA. As it is a voluntary contract they are allowed to put just about any fee they want on being a member. If you do not want to pay an HOA fee do not buy a ... | [
"> how it really amounts to a bunch of bologna I don't have an answer, but I do need to point out that bologna = lunch meat. Baloney = nonsense."
] |
Can clicking your neck (or any other part for that matter) be dangerous? | [
"> Medical doctor Donald Unger crackedthe knuckles of his left hand every day for more than sixty years, but did notcrack the knuckles of his right hand. No arthritis or other ailments formed in either hand, earning him the 2009 Ig Nobel Prize in Medicine, a parody of the Nobel Prize. Source:_URL_0_"
] | [
"Yup. You must **ALWAYS** clear a sample or risk infringement. In fact, in [Bridgeport Music, Inc. v. Dimension Films](_URL_0_), N.W.A. was hit with a lawsuit for using a two-second guitar chord and lost. This changed the music industry's practices of sampling. Before Bridgeport, it was allowable to use small sampl... |
A question about the Declaration of Independence from a European. | [
"If the American dream has roots in the declaration then it is in the documents most famous line: We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. The purs... | [
"credit score is american thing mate, they are pretty used to it and it seems strange to us, they dont see the problem in the system becouse they are so used to it."
] |
What has happened in the War on Terror as of now? Why isn't it over yet? | [
"You can't cure malaria by killing Mosquitos, and you are not going win the war on terror by killing terrorists. Unless you can do something with the reasons why people choose to pilot planes into buildings or strap on explosive and blow themselves up there will always be more terrorists."
] | [
"Basically, the federal government spends the money congress says it should spend; we have a lot of that money in yearly budgets (congress passes appropriations bills, that basically say spend $x for y,z... between Oct/1 and Sept 30); all those appropriations bills expire on Oct 1, so after that, the federal govern... |
How come other mammals don't get pimples/zits? | [
"It is true that other mammals get \"pimples\". They are commonly seen in dogs due to skin infections (pyoderma) and on cats chins where there's a reaction to plastic food/water bowls. You rarely see them because 1) they have coats of hair hiding them, and 2) if they are bothering the animal, they will scratch and ... | [
"Piggyback question. Why is it if i pop one on my back it hurts and burns like Zeus stabbing me with lightning?"
] |
What would happen if the US would shut-down at least 80% of their military bases, withdraw from combat everywhere in the world, and become a pacifist nation? | [
"If you have Netflix there's a very good documentary titled \"the world without US\" It explains your exact question."
] | [
"Erosion would render all of Earth into formations that conform to the medium causing the erosion. For example, some strong rivers would erode lands into canyons, as seen in the most famous example of the grand canyon which still has the river eroding it today. What I mean to say is that erosion is not uniform, so ... |
Why is it so common to see the chord B7 in so many rock/pop/folk songs and so rare to see a normal B chord or other 7th chords? | [
"E is an easy key to play on guitar because the chords fit nicely in the first position, based around the first two frets with a few open strings. B7 is the dominant of E, which makes it the second most important chord in that key, in traditional western harmony. The progression ii-V-I (F# minor, B7, E in the key o... | [
"they would be inherently unbalanced, in the majority of engine designs a lot of the vibration from the pistons moving up and down is directly canceled out by another piston. In 3 and 5 cylinder engines there is one piston that isn't being canceled out, to solve this problem they add a balance shaft which is a bar ... |
Electric Charge. Difference between Coulomb and Q? | [
"> The amount of electric charge that 1 ampere gives is equal to 1 C/t That should be 1 Coloumb per second. The difference between a Coloumb and Q is the difference between a meter and length (or l). One is the unit used to measure a quantity, while the other is the symbol for that quantity. Q is just \"charge\" wh... | [
"The equation E = mc^(2) is true in any unit system. I could measure *E* in ergs and *m* in stones if I really wanted to. The equation would still be true. The formula is also not arbitrary at all. It's derivable from relativity."
] |
How can videos of torturing animals be protected under 'free speech'? | [
"In order for free expression (speech, writing, music, painting, etc) to be illegal, it has to have no socially redeeming value. This is an area of law called \"obscenity\". For example, in the past, pornography was banned, but court rulings found it to have socially redeeming value. For a more contemporary exampl... | [
"If you are looking at it from an emissions or energy standpoint then yes. [This](_URL_0_) Peta site is a good source of info, such as \"It takes more than 11 times as much fossil fuel to make one calorie from animal protein as it does to make one calorie from plant protein.\" Interesting information on burger prod... |
Would putting helium into a trumpet make its pitch higher? | [
"It works with bagpipes. \"Bagpipes do work with helium or helium mixtures-100 percent helium in the bag raises the pitch by about an octave and some retuning is required between chanter and drone.\" _URL_0_"
] | [
"How are you going to pressurize the inside of a popcorn kernel with a bicycle pump?"
] |
I just had a thought, and I'd like to know if it is possible. | [
"Why did you delete the text? What was the question?"
] | [
"Some work has been done in this field, and here is some more information regarding that work. _URL_2_ _URL_0_ _URL_1_"
] |
For whales and dolphins can water "Go down the wrong pipe" and make them choke like with humans? | [
"In humans, your \"air tube\" and your \"food tube\" are next to each other and there's a little flap (the epiglottis) that opens or closes depending on if we're breathing/talking or eating/drinking. Sometimes we mess it up a little and we either swallow some air, or inhale some food/liquid. In whales and dolphins... | [
"It's due to the fact that the esophagus lies directly behind the trachea with only a small sheet of muscle separating the two cavities. This allows an increase in pressure in your lungs(which would increase pressure in your trachea) to constrict your esophagus. As you hold your breath you are unconsciously increas... |
How quickly did swords become too blunt to be effective during battle? | [
"Here is a link to a NOVA episode called [\"Secrets of the Viking Sword\"](_URL_7_) which detail the story of very early crucible steel swords. Crucible steel made for very sharp, very flexible weapons but my comment is actually about something else. Early in the episode, footage of a modern weapons expert is shown... | [
"Not to discourage further discussion - I hope others can add to this - but u/400-Rabbits wrote a fantastic post some time ago on the Aztecs and on [What would happen if human sacrifice did not appease the Gods and relieve the drought?](_URL_0_) As very brief summary: The post deals with a severe drought that hit... |
How does digital compression work? | [
"From what I understand it's more or less Algorithms that find redundancys in data and instead of IE 01010101 it's condensed into 01x4. Pretty simplistic I know but that is the gist of it if I understand correctly."
] | [
"There's a database which has a big list of what malicious code looks like. It goes through that to see if there's any malicious code in the file."
] |
Why are movie DVD covers so badly photoshopped or just look bad in general? | [
"DVDs covers (and especially Bru-Ray discs) are rather small and are meant to be sold on a shelf. So design choices made for a film's large theatrical poster sometimes won't work when shrunk down to just 7 inches. A new design must be created for home release. Sometimes, these are done by the original artist or ano... | [
"Who says these are translations? For example, the \"Home Alone\" vs \"Mi Pobre Angel\" title change is a choice by the studio. The meme of latchkey kids isn't as common in Latin American countries, so a \"Solo En Casa\" title wouldn't have worked. Calling children angels in America would be mostly sarcastic, thoug... |
Why is the human brain always so negative? | [
"The human brain is partly designed to assess risk and keep us out of danger. All the things you listed have potential danger associated with them, be it physical danger, or danger to our pride, self-esteem, etc"
] | [
"Imagine you're trying to find a coffee shop in a city. If you've been there recently, it should be pretty easy to find. If it's been 10 years since you've been to the coffee shop or the city, it might take you a LONG time to find. It also might take long to find if you've been to other, similar coffee shops in the... |
Why is psychological health issues often considered taboo contrary to physical health issues? | [
"I'd argue that at least in the West it stems from the traditionally Christian conception of the mind being separate from body; that you have an independent freedom of will and that if you experience a mental illness it is not a biological problem but one more of moral hazard."
] | [
"The film \"A Knight's Tale\" is surprisingly accurate to the spirit of the times, apparently. Also, Jurgen Habermas states that during pre-Renaissance (or Enlightenment) times, there was a marked divide between 'private' and 'public.' To Habermas, things and people that were public mattered, and thus, a celebrity ... |
How do search engines come up with results in such a short time and still manage to serve millions of users at the same time? | [
"Servers - lots and lots of servers. As an example here's a link to some images of [google data centres](_URL_0_)"
] | [
"It's not like they're just snapping a regular ol' camera at the sun. Astrophotography is different. The way they do it is by utilizing many different filters and then overlaying the images and creating a composite image. There are special filters designed just for making clear images of our sun called solar filter... |
Why are waterfalls so loud? | [
"Massive amounts of water are continuously crashing into massive amounts of water, producing a lot of noise, plus they are generally in open spaces, so there is nothing preventing that noise from reaching you"
] | [
"Basically you are hearing the muscular waves or [peristalisis](_URL_1_). More detailed explanation here at [Discovery Health](_URL_0_)."
] |
Why does a clock exist in the CPU? | [
"Well, that is a bit like saying \"Why do you have to wait for your left leg before you take a step with your right? Wouldn't you run faster if you simply didn't do it in steps?\" The tick is what keeps the processor synchronized. It does one calculation after the other, the ticks are the calculations being made. I... | [
"Simpler explanation: I write you a letter that says \"This letter was sent from < my address > on < date > and < time > . Please send me a letter back as soon as you get this, with the exact time and date you received this. You follow the instruction and send the second letter back to me. When I get your letter, I... |
ELIM: Why oil prices went up in 2000 even though OPEC's supply remained relatively high | [
"Demand increased dramatically, basically. China and India saw huge increases in the number of people driving. China, for instance, had 20 cars per 1,000 people in 2004. By 2009, that was 47 cars per 1,000 people -- more than double the 2004 number in just 5 years. [Source](_URL_0_). That means a huge spike in dema... | [
"I suggest reading David Fromkin's A Peace to End All Peace: The Fall of the Ottoman Empire and the Creation of the Modern Middle East. Mr. Fromkin describes how and why the Allies, through the Sykes-Picot agreement, drew the lines of the Middle East. He also points to imperial ambitions and Europe's lack of unders... |
how a car engine works. | [
"Suck, squeeze, bang and blow. Sounds dirty, but basically it describes the 4 strokes of a 4 stroke engine. To simplify it, the cylinder sucks petrol(mixed with air), compresses it (squeeze), ignites it (bang), then forces out the burnt exhaust gases (blow)"
] | [
"Animals covers a lot of ground, and what a border collie knows and what a turtle knows is likely to be a huge difference. Let's just pick on dogs, as dogs and humans have been working together for many centuries. Dogs have excellent scent and hearing. They can clearly tell \"your car\" from \"another car\" through... |
Why can some people hear electricity being drawn from household appliances? | [
"Certain circuit elements have a tendency to expand and contract when electricity is applied to them. This effect can be seen mostly in transformers and certain types of capacitors. If the electricity is alternating at a high-frequency such as 15kHz (15000 times per second), then the sound emitted from the vibratin... | [
"You could have [tinnitus](_URL_0_). You should see a doctor if you want any further information, since asking for medical advice is not allowed in this forum."
] |
Why do we have to fast before certain lab work? How would food effect the results? | [
"Food absolutely affects the results of your lab work. If you’re doctor is trying to test your cholesterol and you eat a double bacon cheeseburger an hour before the test, your test will reflect the massive amount of fat you just took in and won’t give an accurate portrayal of your normal cholesterol level. Same th... | [
"You are innocent until **proven** guilty. Thats pretty important. They have to prove that you're guilty. You can't be forced to implicate yourself, the government needs to actually prove their case. It also prevents a situation where you may be forced or compelled by some reason to confess to a crime you did not c... |
Why don't we have one global currency? | [
"Because, the Euro. It doesn't make sense for there to be one global currency when you have individual countries still setting their own economic policy."
] | [
"This CGP Grey video does a really good job of explaining it all. _URL_3_"
] |
What does it take for something to be multicellular as opposed to a bunch of unicellular organisms together? | [
"Things are generally considered properly multicellular if there is specialization of the cells, with some handling reproduction and others handling other functions. If the cells are all alike and mostly doing the same things, they aren't really multicellular. You can call cancer whatever you like, all that matters... | [
"Thank you for your submission! Unfortunately, your submission has been removed for the following reason(s): You can find the basic answer with a google / wiki search. Please start there and come back with a more specific question. If you disagree with this decision, please send a [message to the moderators.](_URL... |
When I’m at work, at a pool. I look into the water and the black lines that mark the lanes will have what appears to be a blue halo on one side and an orange halo on the other, why does this happen? | [
"I suspect this is a kind of chromatic aberration. Water can act like a lens, and lenses bend short wavelength light (blue) more than long wavelength light (red/orange). My guess as to why this only shows up near the black lines is that everywhere else in the pool is pretty uniform, so these effects cancel out. The... | [
"Your eye color doesn't really change, it's how we perceive it that changes. Now here are some factors that changes the color of your eye: the angle, type of light, and whether your eyes are dilated or not. When you look at an object at different angles it changes color, best example is like the color of a lake vs... |
Since the universe is tridimensional - do we know what shape it has? And where is our galaxy placed in relation to its edges? | [
"WMAP data on the cosmic microwave background suggests that the universe is flat,which leads most physicists to conclude that it is infinite since bounded universe would imply that the laws of physics are different near the edges. Note that there isn't really a way to prove this for certain, it's just that assuming... | [
"Let me give you an example using a bit of math. If I have a point in 2D space, I need 2 coorinates to describe its position, x and y. The distance to the point is sqrt(x^2 + y^2) Ok now in 3D space I need three points: x, y, z. The distance to the point is sqrt(x2 + y2 + z2). See the pattern? Ok now about about 4D... |
How can storm chasers drive so close to tornadoes without getting "sucked up"? | [
"a tornado vortex's diameter is not that wide. What you actually see is the slow(ish) debris cloud. It might only be 100mph. Yea that civic was nuts at the end."
] | [
"> I’ve seen a lot of scientists say we can’t get through the Van Allen belts Who in particular? Were they working on the Van Allen belts, ionizing radiation in general, or biological impact of ionizing radiation? We can go through them easily, and if you don't spend days there the total dose is not a significant c... |
Are current car tire and rims more efficient than their older counterparts? | [
"Rims have gotten lighter and stronger while tire compounds have evolved to have better traction and longevity. The only reason rims are bigger is because of esthetics. The ride usually gets harsher and going beyond factory tire diameter will reduce performance. Also old cars had worse suspension so having more t... | [
"[DOS](_URL_1_) and [Windows 7](_URL_0_) both organize files; which would you prefer to use? The increased requirements come from adding features, some of which you might prefer not to use and some of which you might use without really knowing it (compare plug-and-play support between Windows 7 and, say, Windows 98... |
Why does boiling water stop rolling when you stir it? | [
"When water is at a rolling boil, the hottest water near the heat source is becoming gaseous and forming bubbles. When you stir, you are mixing the cooler water from the rest of the pot in with the very hot water, cooling it down and preventing the formation of steam."
] | [
"The stingy appearance might be laminar air flow, which is characterized by smooth even air flow. Since the smoke is initially a higher temperature then the surrounding air there is a pressure difference in the \"air current\", these tubes of different pressures are called stream tubes. Think of drawing a bunch of ... |
Why do we forget our dreams so quickly in the morning? | [
"Most theories state the dreaming is how we build our long term memories. Its a series of hallucinations we experience as we write a permanent record of events. The other theories are that our brain chemistry is **very** different during sleep. This inhibits the formation of memory. The theory is that our chemistr... | [
"This is still an active research though I'm no expert and I'm sure others can answer you better. But i understand our memory is not really like how computers record things. We only extract information that are relevant to us and heavily compress it. Eg you see a mouse eating a cheese. Its quite an odd sight so you... |
there is so much Media today about what future technology might be, did ancient cultures such as the Romans ever speculate either through predictions or stories of what technology they thought might be created in the future? | [
"[This comment](_URL_1_) by u/publiusclodius (from the FAQ) covers differing Roman ideas about what the future would look like. Also, while it doesn't exactly address your question, you might be interested in u/mythoplokos's comment on [the Roman concept of technological progress](_URL_0_), which wasn't quite the s... | [
"In addition to [Pompeiian graffiti](_URL_1_) and other [epigraphy](_URL_3_), much of which was quite crude, we also have the books for a number of comedic plays by [Plautus](_URL_4_) and [Terence](_URL_0_) and satirical poems by [Horace](_URL_5_) and [Juvenal](_URL_2_). And what were they like? Much like humor in ... |
How do robots make rotating parts? | [
"I don't know all of the ways you can do that, nor how that specific machine is doing it, but one extremely common way is with \"brushes\". Here's a diagram from the wiki page for [brushed DC electric motors](_URL_2_) that shows the brushes: _URL_0_ The brushes are the yellow and blue bars that come up and then tur... | [
"NASA is considering the possibility of a helicopter drone for a future Mars mission. You can read about this [from NASA](_URL_2_), as well as some articles on others sites, such as [this](http://www._URL_3_/28360-nasa-mars-helicopter-drone.html) (from _URL_3_) and [this](https://www._URL_0_/extreme/229937-nasa-tes... |
Can someone explain what an isomer is in layman's terms? | [
"An Isomer is a molecule with the same kind of atoms, but they are are a different shape. Imagine a lego set, put it together one way to make a plane. Take the plane apart, use all of those pieces to make a ship. The ship and the plane are isomers of each other, same stuff, different arrangement. EDIT: OK just... | [
"Seeders have the entire file and are only uploading to others. Leechers are people downloading and uploading the file at the same time (though they tend to do more downloading than uploading)."
] |
Simple Radiation. Alpha, Beta, Gamma and X-ray. Please ELI5 | [
"alpha: just releases helium. it's not dangerous whatsoever. beta: can be a little dangerous, its best to keep it in a container. gamma: extremely dangerous. causes cancer, and kills people. a geiger counter is how it's found. there isn't really a unique color or anything on that nature. radiation is invisible to ... | [
"Thank you for your submission! Unfortunately, your submission has been removed for the following reason(s): You can find the basic answer with a google / wiki search. Please start there and come back with a more specific question. If you disagree with this decision, please send a [message to the moderators.](_URL... |
Why are there nuclear-powered subs and aircraft carriers but no nuclear-powered airplanes? | [
"This was experimented with a bit in the '50s by both the Americans and the Soviets. The main issue is that to protect the crew from radiation you need a lot of heavy shielding, and this makes it difficult to fly. _URL_0_"
] | [
"The key requirement for an atom bomb fuel is that when struck by a neutron, the atom must: 1) Split into two pieces which have lower energy than the starting atom 2) also give off more than one neutron The first requirement is obvious: if you want to give off energy to the environment (which is the point of a bomb... |
Why does everything seem to give you cancer? And how can anything cause that first cell to turn cancerous? | [
"Think of it like this. Our body is quite the complex system. It's balancing on the brink of disaster at all times. Our cells are dividing all the time. Thousands of times each second. All that's needed for us to get cancer is that something goes wrong in one of those divisions. We are standing on the brink, and we... | [
"Observation and calculation. Astrophysicists noticed that space is expanding, and that the expansion is accelerating. They did a bunch of math and figured out how much it's accelerating and how different things would effect this acceleration. They did more math and were reasonably sure that it was correct. So the... |
Did Asian armies ever use large metal shields? | [
"Followup question: Did anyone use large metal shields? From what I've gathered, fully metallic shields were a rarity due to their impractical weight. Most shields instead used wood with some bits of metal attached to it. For example, the Roman scutum was made from sheets of glued wood, with a metal umbo/boss in th... | [
"Follow-up question; when did the Greek phalanx go out of fashion in favour of the Macedonian style, and why?"
] |
How are different cheeses made? | [
"Holy cow batman, this has so many answers. I'm an amateur cheese maker myself, but I know for starters you have different kinds of milk, different techniques to make the cheese, whether it have more or less water, then there are different aging times, different temperatures used, different molds added to the chees... | [
"Thank you for your submission! Unfortunately, your submission has been removed for the following reason(s): You can find the basic answer with a google / wiki search. Please start there and come back with a more specific question. If you disagree with this decision, please send a [message to the moderators.](_URL... |
Why did pilots in WW2 wear ties? | [
"In the UK's Royal Airforce during WWII the most junior member of a flight crew was still equivalent in rank to an Army Sergeant, a bit more senior than US Sergeants since they would often command squadrons or be second in command of a Platoon (four squadrons). So they had the trappings of that rank."
] | [
"While not a scientific answer to your question at all, I want to suggest the excellent movie [Before the Fall](_URL_5_) (German Titel: Napola – Elite für den Führer) to anyone interested in this topic, which is a story about pupils in an elite high school in the German Reich."
] |
what is smoke, exactly? I mean, any smoke from any fire. Is it light material? Thick gas? | [
"Particles of carbon + carbon dioxide + water vapor. Depends on the material that's on fire."
] | [
"When people diet and try to lose weight, it is usually fat that they are trying to get rid of. Fat is how your body stores energy. Just like the fat in the food you eat has calories, the fat in your body has calories. If you burn 2500 calories, but only eat 2000 calories, your body will use body fat to make up the... |
For those that remember VHS and audiocassette tapes - I think I understand how you can get pictures on a tape of plastic, but how the heck did they get sound on there? How is it audible? | [
"I think you have the wrong idea of how they get images on the tape. There is nothing on there that resembles an image to the human eye (not even outside of the visible light spectrum) it's nothing like the reels they use in cinemas. The VHS tape is magnetic, kind of like hard drives (except VHS is analog and not ... | [
"Very simple. Sound is waves. Bigger the speaker, bigger the waves louder the sound. Phones have tiny speakers. TV’s and Cars have multiple ones and they are rather big compared to a phone"
] |
Why does inflation happen and what causes it? | [
"This is a frequently asked question. See the [search tool](_URL_0_) for many previous responses. My only addition is the discussion is that many responses focus only on the supply side (printing money causes inflation). There is a demand side aspect as well. When the economy is doing really well, people can bid up... | [
"I encourage you to check out this youtube video _URL_0_ Explains it better than I can"
] |
Why does our voice sound deeper when we slow-mo but sound more high-pitched when we fast forward? | [
"Sound is a vibration. When you slow the speed of a recording, you slow the speed of the vibrations in it, which lowers the pitch. When you speed it up, you speed up those vibrations so it sounds higher pitched. Think about it this way: Al has a really deep voice, and when he says \"Wow.\" his vocal cords vibrate 1... | [
"It *kind of* does. Picture and sound are actually recorded quiet separately. Usually they're *literally* recorded separately — using separate machines — but sometimes they're recorded in the camera but using separate recording mechanisms. What matters is just that picture and sound end up synchronized. The fundame... |
How did people used to buy plane tickets before the internet? | [
"You would call the airline or a travel agent. If you lived close enough to the airport you could drive there, park for free for half hour or so, and go to each airline's set of booths and ask them about times and prices."
] | [
"Remember the old adage ? One mans terrorist is another mans freedom fighter ? They wire the funds to a bank in a friendly country."
] |
why do most cleaning products kill 99.9% of bacteria instead of 100% | [
"It’s a marketing gimmick where they ensure that they can’t get sued on grounds of someone falling sick even after using their product."
] | [
"This is a post WW2 phenomena. Tech was becoming a thing. Computers, atomics, etc Planned obsolescence required new, better model names, 1, 2, 3... At some point the univac 4 needed to be better just by the sound. Univac 400 vs the IBM 401. Jump a head to the nth degree. The univac 9000 or the OS X for that mat... |
The difference between volts and amps | [
"So in very very basic terms, Amps is the flow of electrons (electricity) and voltage is it's pressure, or the force, what's needed to 'break through' resistance. the human body on average can resist 28 volts before the amps can break through. This is why holding a 9V or 12V battery doesn't shock you, unless you pu... | [
"Here's a pretty good explainer. _URL_0_ Basically it comes down to different memory, different promises (reliability and service life), and different marketing."
] |
Was there any difference between the apartheid systems in South Africa and Rhodesia? | [
"Conceptually, the two countries had quite different political systems with regard to how minority white rule was maintained. In South Africa, apartheid theory stated that blacks were not part of the nation. Rather blacks belonged to their ['homelands'](_URL_0_), formalised in 1970 when blacks had their citizenship... | [
"Each county Telco's have something called Termination fee. That is when you call some one; The company dosent charge you for calling, it charges for Terminating the call in their network. YOU-- > Your TELCO-- > US TELCO-- > US PHONE -- > Your friend. US Phone--Termination fee-- > Your Telco-Bill for a call - > Y... |
Why are dogs such good companions? | [
"They don't understand where we were. Dogs are pack animals, they consider their humans to be members of their pack. When a pack member disappears, that's not good for the pack. Their sudden return is cause for happiness. Why they are so loyal in general is a little more complicated. One explanation I have heard i... | [
"It's just in their DNA. Even now, science can't fully explain the phenomena we call \"instincts\", even though we can see them in action, and have them ourselves."
] |
Why did TV shows go from 22-25 episodes per season (LOST, The Office) to 10 episodes (Better Call Saul)? | [
"Tv shows have been bouncing between 22-25 and 10-13 episode for a long time, it isn't recent. It just depends on the show and how much budget they have for that season."
] | [
"The retail stores can buy in bulk. And when they do, they get a special discount from the manufacturer. This is part normal, and part enticement from the manufacturer to get their product out there. Typical electronics markup from manufacturer to vendor is 20-30%. That 30% allows the vendor to discount the device ... |
Why didn't Thomas Paine play a larger role in post-revolution America? | [
"Mostly it was because he was in France, where he went and supported their revolution, pumped out revolutionary material, joined the National Convention, and eventually got himself put in jail by Robespierre. He survived and returned to America, but after most of the post-Revolution stuff was done. Edit: Removed s... | [
"There was a good programme about this on the BBC a few months ago. Bill Bailey successfully campaigned to get Wallace's portrait put up in the Natural History Museum. Unfortunately it's not on iPlayer any more but you can watch some clips here - _URL_0_"
] |
Could an electric car be used as a generator? | [
"Yes, in fact the Tesla model S does this (other cars probably do too but I am not 100% sure of those.) when you apply the brakes it uses the car's speed to recharge the batteries. And since induction causes a force to be applied against the direction of movement this also works to slow down the car."
] | [
"Let's imagine that you have a small water mill and a glass. If you use the glass directly on the water mill, the water mill will not turn regularly because you need to refill your glass with water. Now, let's use a funnel between your glass and your mill. You are now able to run your mill. (Most of sand mill toys... |
Why do eBooks borrowed from the library have to expire? | [
"The library buys a license to loan the book to one patron at a time. As with paper books, you have to return it so someone else can check it out. Instead of having you physically return the book, it expires so you can't open it again."
] | [
"They use a wavelength of light that is cancer causing. Do you want to sit under a cancer causing light? Plus, they aren't all that effective to stop, say a sneeze from transmitting to another person. It takes some time to kill the germs."
] |
Can you reccomend an unbiased book on Communism? | [
"I've heard great things about Silvio Pons new book, *The Global Revolution: A History of International Communism, 1917-1991*. It is fairly expensive though. There are also other, cheaper books that are good as well. Each one of these addresses your questions, and they are all well-written. Archie Brown, *The Rise ... | [
"Hastings is a journalist, nothing he'll write about history can be categorized as 'the best'. Try: _URL_0_"
] |
If It's possible to SLI two GPUs, why is it not possible to SLI two CPUs? | [
"Uhh, multi socket boards have been around for ages...they don't need a physical connection between the two becuase they are connected via the FSB (front side bus) they are in tangled via software support and hardware support. The term SLI broad ATI crossfire is very similar....GPUs are connected via ribbon cable."... | [
"Couple things to consider. First, when you get tried in court, prosecutors will try to get you convicted for every crime you committed, not just the biggest one. So you may be on trial for murder, but also assault, battery, kidnapping, brandishing a weapon, etc... You may be found guilty for any number of them, a... |
How exactly do different isotopes of an element change its chemical properties? | [
"A non obvious difference is that different isotopes have different spins for their entire wave function, so they can obey different quantum statistics. A fun/striking example of this mattering is the superfluidity of liquid helium. Helium 4 becomes a superfluid at 2.17 K. Helium 3 becomes a superfluid at 1 mK. Thi... | [
"They use [spectrographs](_URL_0_), a device which measures the light that comes off that planet. This works because most substances have their own spectral fingerprint, which is very recognizable. For example, if you hold salt in a candleflame and look at the spectrum, it will have a bright orange emission line, ... |
In WWI, between agreeing the armistice being signed, and 11am on 11/11, did much fighting take place? | [
"In some sectors, the fighting continued right up until the Armistice came into effect at 1100. For example, combat continued between German and Commonwealth troops around Mons until the last minute. It's been estimated that the morning of November 11 produced around 11 000 casualties, 2700 of whom were killed. The... | [
"Mansa is a military title, originally meaning something like \"supreme commander\" but evolving to have connotations making it similar to a royal title. So, calling him \"Emperor Mansa\" is a bit redundant. To answer your question, no, there is not evidence to suggest that a Malian fleet reached the Americas. In f... |
Why is the War on Drugs considered to be a failure? | [
"If the objectives of the \"War on Drugs\" were: * to put a lot of potential democrat voters in jail * to increase the powers of the police to surveil. stop, search and trespass * to make immense amounts of money our of a corrupt private prison system * to share the drug dealers profits with the corrupt local polic... | [
"This depends entirely on what *kind* of empire you're talking about. In pre-modern times, ruling Afghanistan or Bactria from a long distance away would have required a fairly loose agreement of vassalage between an imperial center like Delhi or Constantinople. In modern times, it's status as a border-zone between ... |
Why does my skin perceive a breeze as a cooler air temperature? | [
"Moisture on your skin is evaporated. The state change from liquid to vapor requires energy for which the net result is a cooler temperature on your skin. It's why we sweat."
] | [
"It is a matter of heat transfer. Specifically the heat transfer coefficient. Compare the coefficients of the two and you will see that your body (mostly fluid water) transfers heat energy more effectively through fluid rather than air."
] |
Does unitarity imply Conservation of Energy in modern quantum mechanics? | [
"The key thing here is [Noether's theorem](_URL_0_), one of the most beautiful results in all of physics. Noether's theorem connects symmetries of nature to conserved quantities. For example, when physics is independent of spatial position, momentum is conserved. Or when physics is unchanged by rotating your view, ... | [
"It depends on your favorite interpretation. Copenhagen: Things collapsed because there were measurements in the universe. Many worlds: Things are still entangled but we only see a part that \"looks\" classical due to decoherence. And so on. > How can we even suppose a freshly prepared qubit, if it contains hidden... |
How does one rationalize the following two statements: 1) Space is infinite and 2) The Universe is expanding? | [
"When we say the universe is expanding, we mean that everything is getting further away from everything else (at least before gravity gets involved and pulls nearby things towards each other). Take the infinite number line, and move the number 1 to 2, 2 to 4, 3 to 6 and so on. The resulting line has the same amoun... | [
"You get the full year's worth of radiation. From an outside point of view, we see that time is dilated and the astronaut is moving very slowly inside their spaceship. But we see the spaceship take a full year to reach its destination, and gets hit by all this radiation along the way. From the astronaut's point of ... |
How did Labrador Retrievers become one of the most prolific types of domestic dog? | [
"It's not just *one* of the most prolific, as far as pure breeds are concerned it *is* the most prolific by a big margin, it has been the most popular breed registered with the American Kennel Club for the past 24 years and Labrador retriever puppies registered outnumber the next most popular breed, currently golde... | [
"Certainly no historian here, but I do love history. Maybe I can get the ball rolling here with this thread's first comment... I'm not sure what you mean by the \"rise of mass production\" as that sounds vague to me. Do you mean the beginning of the American Industrial Revolution which roughly began in the early 1... |
Why do we have a bracketed tax system, and why don't we use flat tax rates for everyone? | [
"As ELI5 as was explained to me: A flat tax, like 11%, would be a larger share of a low earning citizen than a high earning citizen. A person earning $100 would be more affected by paying $11 dollars than a person earning $100,000 would be paying $11,000."
] | [
"This goes back to the French Revolution. Before the revolution, members from different classes would very occasionally meet when called by the king to advise him. The assembly of the different classes (also known as estates) was called the *Estates General*. The king called a meeting of the Estates General shortl... |
Why is dental care separate from medical care? | [
"Yer not alone in askin', and kind strangers have explained: 1. [ELI5: Why does Health Care not cover Dental, Seems like teeth rotting out is bad for your Health? ](_URL_0_) 1. [ELI5: Why is dental care considered to be \"separate\" from other kinds of medical care? Is it this way outside the US/Canada? ](_URL_4_) ... | [
"For the same reason a 15 minute ambulance ride can cost $1000. You aren't paying for the service as much as your are paying a bunch of highly trained people with expensive equipment to sit around and do nothing until you need them."
] |
If my $300cphone can record 4K then why should I pay thousands of dollars for a 4K camera? | [
"Pixels are a small, increasingly unimportant contributor to camera quality. A proper camera will: * have a high quality lens, that will focus the image more sharply * a larger lens, with will gather more light an allow for faster shutter speeds * a larger, high quality detection element, which will register the im... | [
"It doesn't support the codecs, at that point it's receiving the output of the phone, which is an analog output (in the case of the headphone/output jack) or a mutually supported digital output. To ELI5 analogy it: humans can't digest grass, but we can digest beef. Just because we are eating a cow that ate grass d... |
Because everything is constantly moving in space, and in enough time will every planet and star eventually collide making one giant star or planet? | [
"No, some things in space will never collide (like some galaxies). That's because in between those things, space itself is expanding (stretching). It could be that a long time from now space has stretched so far in all directions that you wouldn't even be able to see stars if the earth was around that long and with... | [
"Cassini uses fuel to maneuver. The dense orbital system it operates in isn't stable. The Voyagers are on the edge of nowhere. They can't maneuver anymore, and that's OK. Cassini could hit something, like one of Jupiter's moons where there may be life. It's important to know if there is life on such a Moon, and kno... |
During the Paris Peace Conference, did the Allies foresee German hyper-inflation as a possible consequence of the treaty? | [
"Germany hyperinflation was not a consequence of the Treaty of Versailles, it was a consequence of German government responses to it, and their attempts to avoid paying reparations. Perhaps the Allies were oddly optimistic in expecting the Germans not to try and do everything to avoid obligations that had no real e... | [
"The person you link to has borrowed (~~or plagiarised - there's no citation~~ Edit: /u/Iguana_on_a_stick points out they do reference Eckstein on page 3, I only Ctrl-F'd the first page. My bad.) their main argument almost entirely from Arthur Eckstein's *Mediterranean Anarchy, Interstate War, and the Rise of Rome*... |
Why does Inigo criticize Vizzini for exclaiming "Inconceivable!" | [
"Unbelievable things keep happening in succession, strongly suggesting that they really aren't inconceivable (ie the events were predictable)."
] | [
"I recommend the following publication, partially available on Google Books: [A Companion to 19th-Century Britain](_URL_0_) You'll find some relevant information from page 432 on, with section titles like **Vile Victorians** and **Beneath the Crinoline**. Also on Google Books is: > [The Victorian Girl and the F... |
How to wipe sitting down. | [
"Right Handed: lean to the left. Left handed: lean to the right. Wipe front to back."
] | [
"This question was asked less than a week ago. tl;dr: you're tying granny knots, not square knots."
] |
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