question stringlengths 3 301 | answer stringlengths 9 26.1k | context list |
|---|---|---|
is it possible to learn a second language without using your first language as reference? | Yes. The Rosetta stone, the object not the software, is how we were able to translate quite a few Egyptian hieroglyphics to english by going to Greek first. If you do not share a common secondary language you would learn it the same way a person learns to speak their first language, by immersion. | [
"It is possible that the kinds of language experience and knowledge gained through the statistical learning of the first language influences one's acquisition of a second language. Some research points to the possibility that the difficulty of learning a second language may be derived from the structural patterns a... |
harmonics, on guitar particularly. | Instead of the whole string vibrating you are essentially cutting the string into a half, a third, a quarter ect..
When you cause the half of the string to vibrate together but only along a fraction of the string it produces a higher note which is amplified by the pickups or the sound hole. | [
"A harmonic is any member of the harmonic series. The term is employed in various disciplines, including music, physics, acoustics, electronic power transmission, radio technology, and other fields. It is typically applied to repeating signals, such as sinusoidal waves. A harmonic of such a wave is a wave with a fr... |
how a product can have a money back satisfaction guarantee. | Yes, but the way you get your money back is such a hastle that it's not worth doing. Most people are not willing to go through the steps to recover the $2 they spent on a yogurt; I know I wouldn't. | [
"Rebates offer money back to the consumer. Unlike coupons, rebates cannot be used immediately, but instead must be mailed to the product’s manufacturer. Consumers benefit from the lower price, while companies benefit because not every consumer will redeem the offer.\n",
"This process requires signing a contract i... |
how and why rotation matrices work. | You should just run through a few 2D examples. It's make it make sense way better than I can do with words. But I'll do one generic 2D example for you...
Say you have a point (x,y) and you want to rotated it by r
Our rotation matrix is
[cos r -sin r]
[sin r cos r]
Our x,y is represented by
[x... | [
"Matrices are often used for doing transformations, especially when a large number of points are being transformed, as they are a direct representation of the linear operator. Rotations represented in other ways are often converted to matrices before being used. They can be extended to represent rotations and trans... |
First wave casualities on D-Day | In short: no. Fatalities reaching 100% is extremely rare in a combat situation.
In long:
Of around 156 000 participants in the landings, only around 4 500 were confirmed dead (with another 8-15 000 wounded/missing, depending on the sources I have access to).
One by one:
* Utah Beach: 21 000 men of the 4th Infantry ... | [
"Capa came ashore with the men of the 16th Infantry Regiment of the 1st Infantry Division on 6 June 1944 (D-Day) in an early wave of the assaults on Omaha Beach (reported variously as the \"first wave\" or thirteenth (though just an hour behind the first wave)). He used two Contax II cameras mounted with 50 mm lens... |
why do some clovers get more than three leaves? if you find a clover with more than three leaves, is it common to find more in the same area? | It's a mutation. It happens basically for the same reason as when a person sometimes ends up with an extra finger or toe: the part of their DNA that determines body shape becomes altered slightly and you get an extra. It can happen the other way too where you get less as well.
Clover (at least the type you think of ... | [
"Clovers can have more than four leaves. Five-leaf clovers are less commonly found naturally than four-leaf clovers; however, they, too, have been successfully cultivated. Some four-leaf clover collectors, particularly in Ireland, regard the five-leaf clover, known as a rose clover, as a particular prize. In except... |
why does the temperature on weather sites sometimes seem incorrect? | What you "feel" depends on who you are, your health, metabolism and gender. So feel is not a good indicator of temperature.
Website might not have regular updates, so the temp reading might be several hours old, or from a fixed location that has a different microclimate from where you are. And being indoors vs outdoor... | [
"In some areas, a major city featured within the regional observations would always provide weather conditions; if a condition report is unavailable, the message \"the weather conditions were not available\" would precede the city. In addition, the regional portion of the segment may be condensed to a roundup forma... |
how does a lense (specifically telescopic) magnify light? | Which part is confusing? Lenses bend light and the shape of lenses means that small things get bigger.
Is it the (quantum) mechanics of how glass bends light you're interested in or the geometry of why a convex lens shape results in a set of parallel line diverging into a larger version of the original shape? | [
"A telecentric lens is a compound lens that has its entrance or exit pupil at infinity; in the prior case, this produces an orthographic view of the subject. This means that the chief rays (oblique rays that pass through the center of the aperture stop) are parallel to the optical axis in front of or behind the sys... |
Why did Geneva remain Swiss all these years? | The majority of the citizens of Geneva tended to be at odds with France and its attempts to influence the city most of the time.
Since Switzerland swore eternal neutrality (and renounced their claim to Milan) after their disastrous defeat at the hands of the French and Venetians at Marignano in 1515, France wouldn't a... | [
"The History of Geneva dates from before the Roman occupation in the second century BC. Now the principal French-speaking city of Switzerland, Geneva was an independent city state from the Middle Ages until the end of the 18th century. John Calvin was the Protestant leader of the city in the 16th century.\n",
"Th... |
Where do the stereotypes of witch's outfit (conical witch hat, black attire, etc) and witch's broom come from? | [This image](_URL_0_) is from Robert Hunt's book on Cornish folklore (1865) - and I am certain this is not the oldest visual reference; the image of the earliest witch's hat clearly predates the Wizard of Oz, which means Wiki may be wrong - a moment in history just in itself.
I have seen speculation that the pointed h... | [
"BULLET::::- Archaniz - Chairwitch of the Deadly Nightshade Gardening Club; maintains the \"traditional\" witch look (black hat, hair, eyes, long nose, etc.). Grows ordinary daisies in her garden (as well as Giant Weaselweeds), and dislikes Vamist's intentions as she believes he will cause witches to be viewed as b... |
If I lead an intelectually active life and learn lots of things, will my memory and brain be better, or just burn out ? | First of all, living an enriched intellectual life will never lead to your brain burning out. Leaving a lazy, unstimulating one will.
A lot of research is going into this these days. A couple decades ago it was discovered that, contrary to popular belief until then, new neurons are generated in the adult human brain,... | [
"Any additional information present at the time of comprehension has the ability to displace the target information from short-term memory. Therefore, there is potential that one's ability to understand and remember will be compromised if one studies with the television or radio on.\n",
"While it seems adaptive t... |
how can our hearts beat (practically) forever? | Your other muscles are actually capable of long-term repetitive usage. The two main things any muscle needs to do that is a consistent fuel source and damage prevention.
Skeletal muscle has stores of fuel in side each cell.
There's extremely short term energy, in the form of two chemicals called ATP and Creatine Phosp... | [
"\"When Your Heart Stops Beating\" is a song by American rock band +44, released on November 14, 2006 as the third single from the group's debut studio album, \"When Your Heart Stops Beating\" (2006). \"When Your Heart Stops Beating\" was released to radio on October 3, 2006. The song was the only single from the a... |
Where to learn about war photography ? | What sort of information are you looking for? It's a fairly broad topic, honestly - are you looking for information on its origins, the development of it, the cultural impact of it, the technology used in it, etc.? | [
"The role and appropriateness of war photography for civilian audiences are contentious issues and have been discussed elsewhere with specific reference to this textbook, including \"The War We Don't Want to See\" by Sue Halpern (NYRB, 18 Dec. 2008) and \"From Goya to Afghanistan – an essay on the ratio and ethics ... |
Askscience, why are there two different types of smile? Is it psychological? Physiological? Simply real vs fake? | The proximal cause is that some of the muscles (orbicularis muscle?) that are needed for a genuine smile are not controlled consciously.
The broader evolutionary reason is probably that selection for indicators of our actual emotional state preceded selection for the ability to fake emotional states. Natural selection... | [
"Many researchers have tried to explain why the smile is seen so differently by people. The explanations range from scientific theories about human vision to curious supposition about \"Mona Lisa\"'s identity and feelings.\n",
"Among humans, smiling is an expression denoting pleasure, sociability, happiness, joy ... |
How does buoyancy work in zero gravity? | Buoyancy is a force acting on a body as to oppose gravity when that body is immersed in a fluid. This force is proportional to the weight of the volume of fluid displaced. In zero gravity, the fluid has no weight and there is no direction in which buoyancy could act. Buoyancy requires gravity... or more generally a ref... | [
"Buoyancy force is the defined as the force exerted on the body or an object when inserted in a fluid. Buoyancy force is based on the basic principle of pressure variation with depth, since pressure increases with depth. Hence buoyancy force arises as pressure on the bottom surface of the immersed object is greater... |
the rise of china | > **The Rise of China**
It's more like the rebound of China. For most of the recorded civilization, China was one of the most advanced societies. It's been in a few hundred year funk.
> **How it happened?**
Education, health, and economic liberalization. Mao, a brutal dictator in many ways, brought health to the c... | [
"The modernisation of China led to the end of the Chinese Empire, and the installation of the Republic of China, which lasted on the mainland until the Communist Revolution and the installation of the People's Republic of China in 1949.\n",
"After the fall of the Qing Dynasty in 1912, China underwent a period of ... |
i'm british, how come when i watch an american film or show i never notice the american accents even straight from the start, and british accents really stick out. but when i'm watching british tv everything is normal, and american accents stand out loads? | It's probably the juxtaposition of having everyone speak one accent (even if it's American) and then a single person with a different accent speaks (even if it's British), or vice-versa. | [
"While actors in theatre are traditionally trained to have a \"Standard American\" accent, actors in film are instead trained to have a General American accent. Dialect coach Robert Easton said the Standard American accent was \"too semi-British\" and opted for General American. Easton commended British actors in l... |
Why does the apparent frequency due to a Doppler shift depend on whether the source or the detector is moving? Wouldn't the relative motion be the same? | They have different motion *relative to the medium the waves are traveling in* - in the case of sound, the air.
| [
"The Doppler shift principle is the underlying method of operation, in which a change in frequency is detected due to object motion. This is caused when the object must cause a change in the ultrasonic frequency to the receiver relative to the transmitting frequency.\n",
"The Doppler effect (or Doppler shift), na... |
some stars appear to twinkle red and blue very clearly on a dark, moonless night. | Have you ever seen the air shimmer on a hot day? When light passes through air of different temperatures it is refracted, just like when it passes through water or glass. When you see stars twinkle it is the light being refracted as it passes through our atmosphere | [
"Planets or stars in the night sky can often cause the illusion to occur. Often these bright stars or planets have been mistaken for landing lights of oncoming aircraft, satellites, or even UFOs. An example of a star that commonly causes this illusion is Sirius, which is the brightest star in the northern hemispher... |
the jet stream and the recent change. | I think the true answer is that we don't yet know.
However, it is being studied extensively. The most commonly accepted explanation at the moment is as follows:
The jet stream is caused by the different in temperature between the north pole and the tropics. However, climate change means that the north pole is warming... | [
"Jet streams are typically continuous over long distances, but discontinuities are common. The path of the jet typically has a meandering shape, and these meanders themselves propagate eastward, at lower speeds than that of the actual wind within the flow. Each large meander, or wave, within the jet stream is known... |
Does the Many-Worlds Interpretation of QM really imply that everything is waves and there are no particles? | > On a related note, what other interpretations of QM assume the wavefunction is real?
deBrogile-Bohm pilot wave interpretation.
But mainly, what RRC said. | [
"Means waves have no real existence of their own and are merely movement in water, in the same way, while the universe does not have its own existence, it is not the same as God. But generally it is considered that he was neither on side of Wahdat-al-Shuhūd completely nor in complete favour of Wahdat-al-Wujūd, inst... |
does the president have to follow the orders of the secret service? | The folks saying "no" are correct, but in an emergency, he probably simply wouldn't have much choice. If you've ever seen the footage of Reagan getting bundled into the limo and driven off during Hinckley's attack, you have some idea of exactly how much decision-making authority he had at the time: none at all.
As a p... | [
"Directly deals with communications with the committee on Armed Forces in the U.S. Senate and U.S. House of Representatives, in which either the Senate or House could request an intelligence assessment, report, estimate, or legal opinion from the director of a national intelligence center. The section accounts for ... |
why is humour such a large part of culture today? | Humour has always been a part of culture. Every culture has their puns and their drinking songs full of sex jokes and their nasty little cartoon doodles on walls. People *like* to laugh.
You say you can’t imagine George Washington laughing. I promise you, he did. The late 18th to early 19th century were a really busy ... | [
"Humour (British English), also spelt as humor (American English; see spelling differences), is the tendency of experiences to provoke laughter and provide amusement. The term derives from the humoral medicine of the ancient Greeks, which taught that the balance of fluids in the human body, known as humours (Latin:... |
Were the Americas referred to as anything besides the New World before adopting the name America? | I'd be additionally interested in the use of "Columbia" | [
"The Americas are usually accepted as having been named after the Italian explorer Amerigo Vespucci by the German cartographers Martin Waldseemüller and Matthias Ringmann. Vespucci, who explored South America between 1497 and 1502, was the first European to suggest that the Americas were not the East Indies, but a ... |
if my internet speed is 5 mbps, then why is it that i cant download a 5 mb file in 1 second? | First of all, your speed is 5 Mega**bits** per second. One byte is made up of 8 bits, so this is actually equivalent to 640 kilo**bytes** per second.
In addition, that's a total maximum speed. You'll never be able to get that full speed because a) it depends on the network as a whole in between you and the website and... | [
"For rare files this system could be slightly slower than downloading the file itself. Especially for non-cacheable content, you may as well go to the origin host. The system's speed is also subject to the constraint of number of participating proxies.\n",
"In a typical well-conducted review of a number of high-p... |
what is the difference between c and s type corporations? how do they pay taxes differently? | C-corps pay corporate tax on profits. When profits are distributed to shareholders as dividends, the dividends are taxable to the shareholders.
S-corps are "pass through entities" meaning all corporate profits are considered income to the owners, and are taxed at the individual rate. There is no corporate tax. The ta... | [
"A C corporation, under United States federal income tax law, refers to any corporation that is taxed separately from its owners. A C corporation is distinguished from an S corporation, which generally is not taxed separately. Most major companies (and many smaller companies) are treated as C corporations for U.S. ... |
How long was the average commute for Americans before the automobile? | Prior to the rise of the automobile, most people would have gotten to work by walking or on a streetcar and lived near to their work.
The idea of wealthy people living in the suburbs and the poor in the inner-city is a largely an American invention. Though there was some early suburbanization, it really kicked off aft... | [
"In the United States, the Census Bureau's American Community Survey (ACS) collects data on commuting times, allowing an analysis of average commute time by industry, location, and vehicle. According to the 2014 ACS, the average commute time for adults in the United States was 26.8 minutes. The occupations with the... |
Why did European cavalry wear plate armor long after infantry had abandoned it? | Dragoons would've been considered heavy cavalry or line cavalry as opposed to the more traditional role of mounted Muskets/Rifles by the 19th century, but certainly never would've worn Cuirasses in most European armies.
As for the preponderance of single or double breastplates well past the more traditional usage of ... | [
"The use of plate armour declined in the 17th century, but it remained common both among the nobility and for the cuirassiers throughout the European wars of religion. After 1650, plate armour was mostly reduced to the simple breastplate (cuirass) worn by cuirassiers. This was due to the development of the flintloc... |
Can someone help me relate the electron transport chain, citric acid cycle, and glycolysis? | Glycolysis takes a single molecule of glucose and oxidizes it to form two pyruvate molecules. This step produces 2 molecules of ATP as well as reduces two molecules of NAD to NADH by coupling this process to the oxidation of glucose. This is anaerobic respiration and occurs even in the absence of oxygen.
When oxygen i... | [
"The citric acid cycle (also known as the tricarboxylic acid cycle or the Krebs cycle) is used by aerobic organisms to produce energy via the oxidation of acetyl-CoA, which is derived from pyruvate (a product of glycolysis). The citric acid cycle accepts acetyl-CoA and metabolizes it to form carbon dioxide. A relat... |
if you stood inside a moving train and threw a ball in the air, why would it land back in your hand rather than flying back to land in the location where it was originally thrown? | You and the ball are moving at the same speed, so when you let it go it still is moving in the direction that the train is traveling | [
"All balls are caught on the outside of the pattern (on the far left and right) and thrown from closer to the middle of the pattern. The hand moves toward the middle to throw, and back towards the outside to catch the next object. Because the hands must move up and down when throwing and catching, putting this move... |
why do bananas make other foods taste differently when stored together, even if there is packaging? | The compound that makes up the bulk of this banana scent is isoamyl acetate. It's a very volatile compound and is small molecularly, allowing it to easily permeate into things surrounding it. | [
"Other fruits are sometimes used as well, but banana is most often used since it is widely available, normally inexpensive and contains sufficient sugar to start a fermentation process by itself. The different ingredients are usually kept apart and mixed in the trap itself, but some collectors prefer to mix their b... |
Why was Venice able to win the Morean War (Sixth Ottoman–Venetian War from 1684-1699) when they had lost the 5 previous wars before it? What changed to allow the Republic of Venice to stand up to the giant Ottoman Empire? | The Republic of Venice didn't fight alone. In 1683, the Austrians beat the Ottoman army at the gates of Vienna. In 1684, a Holy League was formed on initiative of Pope Innocence XI, with the Holy Roman Empire, the Polish-Lithuanian commonwealth and Venice as the most notable members. In 1686, Russia joined the league a... | [
"Despite the victory at Lepanto, the Venetian Empire gradually lost its Eastern Mediterranean possessions (including Cyprus and Crete) to the Ottomans. Venice captured the Peloponnese during the Great Turkish war (1683–1699), but the land was ceded back after the last of the Venetian-Ottoman Wars. When the Seven Ye... |
AskScience AMA Series: We are climate scientists here to talk about the important individual choices you can make to help mitigate climate change. Ask us anything! | how accurate is it that individual choices, while great and all, are a drop in the bucket compared to what industry is doing? shouldn't "voting" and "boycotting/informed spending" be high on this list? | [
"It has been evident that climate change has become a main focus in the pursuit of sustainable solutions. As more evidence grows on the significant changes in the weather patterns in the past few decades and the impacts it has on disrupting human and natural systems far more quickly than what has been predicted, ac... |
How would the victims of Aztec (Mexica) human sacrifice understand their fate? | I can't speak to how people who did not share similar beliefs with the Aztecs would understand their sacrifice, but I can pass on some information of how those who *did* share those beliefs saw their fate.
This comes from *The Aztecs (Peoples of America)* by Michael E. Smith (bolding mine):
> The Aztecs believed in ... | [
"A wide variety of interpretations of the Aztec practice of human sacrifice have been proposed by modern scholars. Many scholars now believe that Aztec human sacrifice was performed in honor of the gods. Most scholars of Pre-Columbian civilization see human sacrifice among the Aztecs as a part of the long cultural ... |
Are there contradicting phylogenic trees both based on genetics such as cytochrome c and something else? Or are they all very harmonious? | You can certainly have contradicting trees if you use different characters, genes vs morphological characters. You can even have contradicting trees if you use different tree searching methods (distance-based methods, or character-based methods), and choose unwisely, given the limitations of some methods in different c... | [
"Explicit phylogenetic methods rely upon the accuracy of the input rooted gene and species trees, yet these can be challenging to build. Even when there is no doubt in the input trees, the conflicting phylogenies can be the result of evolutionary processes other than HGT, such as duplications and losses, causing th... |
what is the use for giving ab+ blood when people with the ab+ typing can get blood from literally anyone else? | Because all the other types of blood can be donated to other people. Better to use the single purpose blood before the multipurpose blood for the same job. | [
"The A blood type contains about 20 subgroups, of which A1 and A2 are the most common (over 99%). A1 makes up about 80% of all A-type blood, with A2 making up almost all of the rest. These two subgroups are not always interchangeable as far as transfusion is concerned, as some A2 individuals produce antibodies agai... |
why is hydrogen metallic in the core of saturn? | Two things need to be mentioned: first, "metallic hydrogen" is only a theoretical state that has never been observed and only bears some similarity to true metal, and secondly, that we don't actually know that it exists in the cores of the gas giants (although we think it might well do).
Hydrogen is weird. It only has... | [
"Saturn has a rock and or ice core 10–30 times the mass of the Earth, and this core is likely soluble in the gas envelope above, and therefore it is primordial in composition. Since the core still exists, the envelope must have originally accreted onto previously existing planetary cores. Thermal contraction/evolut... |
why do humans forget most or everything that happened before 5th or 6th birthday? | The best theory I've heard so far is that it's based around language development. Until a person has the words and cognitive concept, it's impossible to remember. Some things like walking, eating, sleeping, etc are so innate that we don't need words to learn them. Other things like 'friends', 'birthday cake', 'prese... | [
"BULLET::::- Childhood amnesia is the normal inability to recall memories from the first three years of life. Sigmund Freud observed that not only do humans not remember anything from birth to three years, but they also have “spotty” recollection of anything occurring from three to seven years of age. There are var... |
Where can I find information on the 170th Aero Squadron (US) during WW1? | [Home - Then What? The mind of the doughboy, A.E.F. by the doughboy himself](_URL_0_). (ed. James Louis Small) is a 1920 collection of essays (reminiscences and rants) by U.S. servicemen and includes one by *Richard V. Fealy, Sgt. 1 c. 170th Aero Squadron, Camp Pontanezen, A.P.O. 7 16. Home Address: St. Helena, Califor... | [
"The 103rd Aero Squadron was an aviation pursuit squadron of the U.S. Air Service that served in combat in France during World War I. Its original complement included pilots from the disbanded Lafayette Escadrille and Lafayette Flying Corps. One of those pilots, Paul F. Baer, became the first ace of an American uni... |
what is slope on a graph? | imagine the graph is a hill or mountain. now go and try to cross the mountain. at each step you take, you can tell someone how steep that little part of the moutain is, that is the slope. the part can be very flat (slope = 0) or you go up (slope > 0) or you take a step down (slope < 0).
for the importance-question... | [
"In graph drawing and geometric graph theory, the slope number of a graph is the minimum possible number of distinct slopes of edges in a drawing of the graph in which vertices are represented as points in the Euclidean plane and edges are represented as line segments that do not pass through any non-incident verte... |
how does the voyager spacecraft know its orientation, location and speed in space? | Voyager has a sun sensor and [star tracker](_URL_0_) that keeps track of the star Canopus. There are a number of thrusters so it can adjust its orientation and it has 3 gyroscopes to keep it stable.
I believe the location and speed are calculated values and somewhat approximate. Since there is no friction velocity is... | [
"\"Voyager 1\" was commanded to change its orientation to measure the sideways motion of the solar wind at that location in space on March 2011 (~33yr 6mo from launch). A test roll done in February had confirmed the spacecraft's ability to maneuver and reorient itself. The course of the spacecraft was not changed. ... |
what the heck is currently happening on r/movies? | Did you ever hear the tragedy of Darth Plagueis the Wise? | [
"The film is a modern-day remake of the hit 1977-1980 Spanglish sitcom set in Miami, Florida. The film tells the story of an incompetent director with delusions of grandeur trying to film a remake of his beloved PBS show \"Que Pasa, USA?\". The production is further complicated with limited support from the studio,... |
what makes protein shakers smell so bad after repeated use? | Microbes breaking down leftover protein, basically in the same way as rotting meat - does it remind you of road kill on a hot day by any chance? Likely giving of the chemicals putrescine and cadaverine, among many others. | [
"Proteins are structural materials in much of the animal body (e.g. muscles, skin, and hair). They also form the enzymes that control chemical reactions throughout the body. Each protein molecule is composed of amino acids, which are characterized by inclusion of nitrogen and sometimes sulphur (these components are... |
Are the hominids we're taught about (A. africanas, A. afarenses, Homo erectus, etc) direct ancestors of ours? | "In common with the older Australopithecus afarensis, Au. africanus was of slender build, or gracile, and was thought to have been a direct ancestor of modern humans." [Wikipedia.](_URL_3_)
There is still disagreement on the subject of the classification, ancestry, and progeny of H. erectus, with two major alternative... | [
"Chororapithecus is an extinct hominine genus that lived during the Miocene and is represented by one species, Chororapithecus abyssinicus. It is believed to be the earliest known species of the tribe Gorillini. It was originally interpreted as living about , and its existence was thought to indicate that the last ... |
Why does light turn blue the more lumens there are? | Those numbers aren't lumens, they're temperature equivalents. The lights are being made to mimic thermal radiation from different temperatures. LED lights don't create light in the same way as hot objects, though, so they aren't reaching those temperatures, they just imitate the light created by things of that temperat... | [
"The lumen (lm) is the SI unit for luminous flux, the total amount of light emitted by a source, weighted according to the sensitivity of the human eye to various colours of light. Lumens per watt is a common measure of the efficacy of a light source. The luminous flux is of less value for bicycle lighting due to t... |
What would have happened to Oil if humans had never drilled it? | Buried hydrocarbons work their way through the carbon cycle in one of two ways:
A - they may find their way to the surface, either through the joint action of uplift and erosion or natural oil/gas seeps. In this case, they get oxydized and converted to CO2 by specialized microbiota. Some of these seeps support rich fa... | [
"Our world is seriously dependent on oil, but humans are using it up so quickly to the point that it may eventually run out one day, and the Earth will not have enough time to replenish it. It will happen within a timescale between twenty years to a century, but what if all the oil ran out today?\n",
"A large num... |
why do kid's toy rockets have fins at the base, but space rockets do not? | The fins at the back of a kid's rocket create drag. Drag slows down the back of the rocket, "pushing" it down and maintaining the stability.
Full-size rockets achieve this by means of high-precision thrusters that actively orient the craft in the direction it needs to go. Drag would slow them down and cost much more ... | [
"There is also dedicated toy known as a rocket balloon, usually tubular-shaped and inflated with a special pump (pictured). These balloons, when released, propel in a more stable direction because of a steadier thrust of air and elongated shape, unlike ordinary round balloons which often launch uncontrollably. \n",... |
If a person is constantly exposed to something they are allergic to- do their allergic symptoms get better, worse, or stay the same? | Unfortunately, the answer is a combination of 1) It depends and 2) We don't know.
There are treatments that involve injecting small amounts of allergen in a controlled manner in an attempt to increase tolerance to the allergen. But this treatment is only partially effective in some people and doesn't work at all in ot... | [
"The symptoms of allergic contact may persist for as long as one month before resolving completely. Once an individual has developed a skin reaction to a certain substance it is most likely that they will have it for the rest of their life, and the symptoms will reappear when in contact with the allergen.\n",
"An... |
if i dig a hole then fill it back in with the same dirt, why does the dirt not completely fill the hole? | That dirt was deposited there in layers, and actually formed a certain structure, with water pouring down then evaporating, and animals (worms for example) crawling through it, and roots, etc, the dirt had a lot of air pockets in it. When you removed it, then put it back, you destroyed that structure and packed the dir... | [
"The dug up soil goes back in the hole once the post is in place. Sometimes structural needs require that the hole is also packed with rocks or smaller sticks to keep the post in desired position. Ideally dug out material returns to the pit in its original stratigraphic order but inevitably mixing occurs so that gr... |
During the Middle Ages, How Did A Woman Rise To Lead A Convent or Abbey? | Oh, yes, there were *many* ways a woman could become the leader of a religious community in the Middle Ages. And Hildegard of Bingen witnessed almost all of them.
**I. Live an exemplary life in a strategic place and gather a new community around yourself through reputation**
When Jutta von Sponheim elected to enter a... | [
"In many parts of Europe, with the Gregorian Reforms of the 11th century and the rise in feudalism, women faced many strictures that they did not face in the Early Medieval period. With these societal changes, the status of the convent changed. In the British Isles, the Norman Conquest marked the beginning of the g... |
Why did America instigate a coup in Iran when it was already well on the way to becoming a democracy? | The British government's embargo of Iran after the Iranian Prime Minister's Mossadegh's nationalization of the oil industry from primarily British control in 1951 had a seriously damaging effect on its economy. This, coupled with a powerful new sense of nationalism among the Iranian population in the wake of their defi... | [
"\"For many Iranians, the coup demonstrated duplicity by the United States, which presented itself as a defender of freedom but did not hesitate to use underhanded methods to overthrow a democratically elected government to suit its own economic and strategic interests\", the Agence France-Presse reported.\n",
"T... |
why is it that turning the oven up super high doesn't bake my food super fast? | There's two main reasons why that doesn't work:
1. Heat takes time to actually conduct through something. If you tried to bake a cake at 1000° for a minute, you'd end up with a scorched outside, but the inside of the cake would still be gooey batter. The heat just doesn't have time to move its way through the substa... | [
"Due to this phenomenon, microwave ovens set at too-high power levels may even start to cook the edges of frozen food while the inside of the food remains frozen. Another case of uneven heating can be observed in baked goods containing berries. In these items, the berries absorb more energy than the drier surroundi... |
why doesn't hot metal stick? | Because casts for metal casting are specially made not to stick. They are often coated in what is basically industrial-grade non-stick spray as well. | [
"Metal fires represent a unique hazard because people are often not aware of the characteristics of these fires and are not properly prepared to fight them. Therefore, even a small metal fire can spread and become a larger fire in the surrounding ordinary combustible materials. Certain metals burn in contact with a... |
When was the 1914-1918 Great War labelled as "First World War"? | The term "First World War" was first used in September 1914 by the German philosopher Ernst Haeckel, who claimed that "there is no doubt that the course and character of the feared 'European War' ... will become the first world war in the full sense of the word."
Shapiro & Epstein 2006, p. 329 citing a wire service... | [
"Prior to World War II, the events of 1914–1918 were generally known as the Great War or simply the World War. In October 1914, the Canadian magazine \"Maclean's\" wrote, \"Some wars name themselves. This is the Great War.\" Contemporary Europeans also referred to it as \"the war to end war\" or \"the war to end al... |
why do cars have an air setting for legs/defrost but not face/defrost? | Heat and defrost in a car are often related but different. In my car, there is one control for the vents that happens to also turn on the AC for the defrost settings. The defrost settings are either windshield or windshield plus feet. The purpose of turning on the AC is to dehumidify the air, removing fog from the win... | [
"Like any layout where the engine is not front-mounted and facing the wind, the traditional \"engine-behind-the-passengers\" layout makes engine cooling more difficult. This has been a problem in some cars, but this issue seems to have been largely solved in newer designs. For example, the Saleen S7 employs large e... |
how does 'test-tube meat' actually work? | The example you're referring to came from a cow. They removed a small amount of stem cells from a cows shoulder (not killing the cow).
These cells allow the cow to regrow muscle if it's damaged. If they remove it and they put it in a specific environment it'll grow in a similar way to how it might grow in a cow. | [
"Testing can be a qualitative or quantitative procedure. Package testing is often a physical test. With some types of packaging such as food and pharmaceuticals, chemical tests are conducted to determine suitability of food contact materials. Testing programs range from simple tests with little replication to more ... |
why is shampoo not good enough to also be used as body wash? | Body wash or even hand soap is good enough to wash your hair and even your clothes. Soap is soap and there is not that many variants of it. However you may want to mix some products in the soap you use for your hair to get different effects. Most of these will be harmless to use on the rest of your body. However anti-d... | [
"One reason is concern about the effect of ingredients typically found in commercial hair care products. Shampoo typically contains chemical additives such as sodium lauryl sulfate and sodium laureth sulfate, which can irritate sensitive skin or if not thoroughly rinsed. Such chemical additives are also believed by... |
When is the best time to take vitamins, if any? | Certain vitamins are fat soluble, like A, D, E and K. These should be taken with food for maximal absorption. Most other vitamins, like B and C, are water soluble and can be taken with a drink of water. Time of day isn't going to make a significant difference. Generally, most vitamin needs are met by food, and fat ... | [
"The World Health Organization recommends a daily intake of 45 mg/day of vitamin C for healthy adults, and 25–30 mg/day in infants. The Vitamin C article provides examples of recommendations from individual countries. None exceed 110 mg/day. Vitamin C is necessary for production of collagen and other biomolecules, ... |
what stops pharmaceutical companies from slightly tweaking competitors medicines and selling them as their own? | Patent protection often extends to what are called biosimilars. As the name implies, these are tweaked versions of the same drugs.
_URL_0_ | [
"However, other companies may not be able to enter the market due to another barrier to entry, intellectual property (IP) rights. The drug company may have a patent on the new formulation, barring competitors until the patent expires unless they can license rights from the IP owner. An example of a competitive adva... |
why train wheels aren't made from a material with more friction than metal, metal on metal tracks doesn't seem very efficient | Short answer: It is actually BECAUSE they have less friction. Less friction = less wasted energy. "A turning steel wheel in contact with a steel rail reduces by 85-99% the amount of rolling friction than a rolling rubber truck tire has in contact with an asphalt or concrete pavement."
[Long Answer](_URL_0_) | [
"The major benefit of trains is that they run on steel tracks. Steel rail can carry more load with less rolling friction than any other mode of ground transport. However there are several disadvantages of laying conventional railway tracks consisting of two rails: Both rails have to rise and fall and bank together.... |
when people say that an old-timey millionaire is worth so-and-so in today's money, what does that mean and how is it calculated? | It's simply an adjustment for inflation. Money generally loses value over time, so if you are to state how much a person or company was worth 100 years ago it's better to adjust that figure for inflation. That way it is more easily interpreted with today's understanding of how much a dollar (or whatever) is worth. | [
"Sixteen percent of millionaires inherited their fortunes. Forty-seven percent of millionaires are business owners. Twenty-three percent of the world's millionaires got that way through paid work, consisting mostly of skilled professionals or managers. Millionaires are, on average, 61 years old with $3.05 million i... |
How did relatively smaller warships, such as brigs and frigates, do battle in the 18th century? | Well, by the time of the 18th century, the formalism of the line of battle was falling out of fashion, as it was seen that line-of-battle, uh, battles, often didn't produce decisive results. I wrote more about this [here](_URL_2_), [here](_URL_3_) and also [here](_URL_1_) if you'd like to read about that.
In terms of... | [
"By the middle of the 17th century, warships were carrying increasing numbers of cannon on their broadsides and tactics evolved to bring each ship's firepower to bear in a line of battle. The man-of-war now evolved into the ship of the line. In the 18th century, the frigate and sloop-of-war – too small to stand in ... |
Why did the Nazis possess anti-aristocratic and anti-monarchist views? | Royals were in an anomalous position within National Socialist ideology. On one hand, the NSDAP's leadership cult and various Party organs like the SS celebrated those individuals who managed to bend history to their will. Propaganda and other materials cast figures like Frederick the Great or Bismarck as proto-Nationa... | [
"During the period of Nazi rule, all other political parties, including conservative, were outlawed. The \"national revolution\" of the Nazis had priority and the racist and social changes in German society were not allowed to be stopped by the conservative forces of \"reaction\" (\"Reaktion\", see \"Horst-Wessel-L... |
askscience, does the position of ice affect the heat transfer of the cans/bottles inside? | There are too many issues to actually determine this but it is safe to say surround is the answer. If you really want to chill your beer use ice water. | [
"BULLET::::- Ice cubes placed in a glass of warm water crack by thermal shock as the exterior surface increases in temperature much faster than the interior. The outer layer expands as it warms, while the interior remains largely unchanged. This rapid change in volume between different layers creates stresses in th... |
How much water vapor the air needs to turn conductive? | I'm not sure if it's possible to class any amount of water vapour as a conductor.
I'll try and explain. Firstly water is a very BAD conductor of electricity. We measure conductivity in SI units of Siemens usually stating it as Siemens per meter or S/m where the higher the number the more conductive a material is.
... | [
"The ideal water vapor for industrial manufacturing processes is extremely pure, moderate in temperature and free of extra oxygen or water microdroplets. In addition, this water vapor is ideally delivered in a range of flow rates from standard cubic centimeters per minute (sccm) to standard litre per minute (slm), ... |
if you were stumble across an undiscovered island, what would you have to do to make it your own country? | Go to the island. Set up what you need to defend it from anyone else who would want to take it from you, which probably involves cannons and missiles. Declare that you are a country to other countries and hope that they agree.
That is pretty much it. What areas are countries is up to who recognizes them. | [
"An island paradise has been discovered by colonial forces from several distinct nations from fictional lands, but with magic and monsters. You play as a neutral Human who recently arrived at the island, able to ally yourself with either the native Elves who inhabit the land, or any of the foreign nations competing... |
uefa financial fair play regulations | Recently, some very rich people have bought clubs that have historically been not that great--for example, Manchester City and PSG--and spent a lot of money making the teams better, by buying bunches of top players that previously the team would not have been able to afford. These new owners only seem to care about ma... | [
"The UEFA Financial Fair Play Regulations (FFP) were established to prevent professional football clubs spending more than they earn in the pursuit of success and in doing so getting into financial problems which might threaten their long-term survival. They were agreed to in principle in September 2009 by the Fina... |
what is a melody? | Melody: a series of notes played with a specific rhythm (a series of notes played with *one* rhythm is not the same melody as the same series of notes played with a *different* rhythm). Harmony: two or more notes played at the same time, regardless of the rhythm. | [
"A melody (from Greek μελῳδία, \"melōidía\", \"singing, chanting\"), also tune, voice, or line, is a linear succession of musical tones that the listener perceives as a single entity. In its most literal sense, a melody is a combination of pitch and rhythm, while more figuratively, the term can include successions ... |
what usually causes my internet to crash? | It sounds like you've eliminated every single point of failure, except two. Cabling (including EMI), and wetware. I'd try all new cabling if it's possible, and make sure it stays as far away from electrical cables/wiring, fluorescent lighting, electric motors and other electrical sources as possible. Have all of the IS... | [
"If a website or add-on causes a tab to crash in Internet Explorer 8, only that tab is affected. The browser itself remains stable and other tabs remain unaffected, thereby minimizing any disruption to the browsing experience. If a tab unexpectedly closes or crashes it is automatically reloaded with the same conten... |
what exactly did certain individuals/entities do that was illegal and caused the gfc? | I assume we are referring to the Global Financial Crisis. If so, the trigger event occurred in the US housing market.
The US housing market underwent a 'bubble': mortgage lenders became incredibly loose with their criteria, giving loans out rather loosely. This led to an increase in demand for housing, which in turn r... | [
"In response to the escalating War in Donbass, on 17 July 2014 the United States extended its transactions ban to two major Russian energy firms, Rosneft and Novatek, and to two banks, Gazprombank and Vnesheconombank. United States also urged EU leaders to join the third wave leading EU to start drafting European s... |
TIL that Tsar Nicholas II asked his first cousin, King George V of England, for political asylum in Britain during the Russian Revolution. George rejected it, and Nicholas was executed soon after. Did King George ever express remorse after Nicholas was killed? | Follow-up question: Though definitely not a democracy by modern standards, turn-of-the-century Britain was certainly not nearly as autocratic as turn-of-the-century Russia. Were George's fears legitimate? | [
"Forced to accept the hopelessness of both the war and the situation at home, on 15 March 1917, Nicholas II abdicated in favour of his brother, Grand Duke Mikhail Alexandrovich. The Grand Duke promptly refused to accept the throne without the support of the army and his people. A provisional Government was appointe... |
why are immigrants held at detention centers instead of being deported? | The migrants being held at detention centers are seeking political asylum. They are being held until their claim to asylum is found valid or not. If it is found valid they are granted entry to the US if it is not found valid they are deported. | [
"Immigration detention is the policy of holding individuals suspected of visa violations, illegal entry or unauthorised arrival, and those subject to deportation and removal in detention until a decision is made by immigration authorities to grant a visa and release them into the community, or to repatriate them to... |
Was there ever any antagonism between the various sects of Buddhism in Eastern Asia in the middle ages? | Buddhism is slightly different organized than Protestanism and Catholicism. In Christianity, if you go talk to a Methodist minister and attend Methodist services, you are a Methodist. in Islam, you can talk to a Salafi imam or a Sufi imam because they're both right and holy imams. The elites have formal affiliations in... | [
"Buddhism and Zoroastrianism were the major faiths in Central Asia prior to the arrival of Islam. Zoroastrian influence is still felt today in such celebrations as Nowruz, held in all five of the Central Asian states.\n",
"Although the spread of Buddhism to Central Asia and Northern Asia is usually associated wit... |
Why did bacteria evolve in to more complex organisms if they are so suited to living as they are? | Lines of organisms don't choose to evolve. Genetic changes as a result of all manner of causes just occur naturally. They occasionally result in useful changes.
To the actual question on complex organisms, had the more complex Eukaryotes not been better at surviving in their ecological niches than their less complex ... | [
"Because of their ability to quickly grow and the relative ease with which they can be manipulated, bacteria are the workhorses for the fields of molecular biology, genetics and biochemistry. By making mutations in bacterial DNA and examining the resulting phenotypes, scientists can determine the function of genes,... |
Was the Russian front really used as a threat/punishment for German troops in WWII? | Considering that over 75% of the German troops served on the Eastern Front, it is kind of hard to call it punishment. It is also my understanding that German units periodically rotated between heavy combat in the east and lighter assignments in the west to give the troops/units a chance to rest and recover. In any case... | [
"Besides the pro-German and pro-Soviet forces, some third-party factions were also involved in the fighting during Operation Bagration, most notably several resistance groups of the Polish Home Army. The latter mostly fought both the German as well as the Soviet-led troops. Some Home Army partisan factions regarded... |
what happens to woman's stretched belly after she has just given birth? how does it returns back to normal so quickly? | It doesn't.
Ever.
Well at least not for most women. Some are lucky and don't end up with many stretch marks, but I think you've been given the impression that it goes back to normal quickly due to "celebrites" doing photo shoots and "How Forgettable Actress got back to a size six just three weeks after giving birth... | [
"BULLET::::- In pregnant or postpartum women, the condition is caused by the stretching of the rectus abdominis by the growing uterus. It is more common in multiparous women due to repeated episodes of stretching. When the defect occurs during pregnancy, the uterus can sometimes be seen bulging through the abdomina... |
Why do surgeons "scrub up" or wash their hands so meticulously if they're going to put on latex gloves anyway? | Gloves are not perfect. They can be punctured or torn. Even with normal use, wear and stretching can cause minuscule pores in the material to widen. After two hours of surgery, as many as 35% of gloves may have tiny openings big enough to pass fluid or bacteria.
That said, there has never been a double-blind study of ... | [
"Since health care workers must wash their hands frequently to prevent disease transmission, hospital-grade lotion is recommended to prevent skin dermatitis caused by frequent exposure to cleaning agents in the soap. A 2006 study found that application of hospital-grade lotion after hand washing significantly reduc... |
is there a limit on how massive a corporation can get? if so why - why not? | Can not exceed size of present value of world economy.
Some companies have legal limits on their size such as banks deemed by Congress as having grown too big to fail meaning that a possible failure would damage economy and Congress legislates limits on size based inpart on financial health. | [
"BULLET::::- \"Corporate capacity\" - under the new Act a company's capacity will be unlimited unless its articles specifically provide otherwise, thus greatly reducing the applicability of the \"ultra vires\" doctrine to corporate law and removing the need for an excessively long objects clause in the Memorandum o... |
If Serbia started the ball rolling on the events that triggered WW1, why is Germany always portrayed as the prime evil in the war? | Well you struck at two very different topics here, that of "evil" and "aggression" which are completely different discussions in regards to WWI. So let's tackle each separately. This is going to be a huge post because it's a huge topic, so brace yourself.
-----
**Why does Germany bear war guilt and given the title of... | [
"Due to Austria's delay in writing the ultimatum, the element of surprise that Germany had counted upon in the war against Serbia was lost. Instead, the strategy of \"localization\" was adopted, which meant that when the Austro-Serbian war began, Germany would pressure other powers not to become involved even at th... |
If you travel at 99,99% the speed of light, what happens to your cells while time appears to slow down? | Your cells are all subject to the laws of physics, so they also age slower. The passage of time itself physically slows down, it's not a matter of perception. | [
"The effect, however, is predicted to be minuscule. A photon travelling between two plates that are 1 micrometer apart would increase the photon's speed by only about one part in 10. This change in light's speed is too small to be detected with current technology, which prevents the Scharnhorst effect from being te... |
why do sour gummy snacks seem to be less sour than sour hard candy? | Sour hard candy is coated in a sour powder. The hard candies themselves were as weak as gummies. | [
"Sour Patch Kids (known as Very Bad Kids in France, and as Maynards Sour Patch Kids in the UK and Canada) are a soft candy with a coating of invert sugar and sour sugar (a combination of citric acid, tartaric acid and sugar). The slogan, \"Sour. Sweet. Gone.\", refers to the sour-to-sweet taste of the candy.\n",
... |
what's going to happen now that the us has started bombing syria? | Maybe WWI, in the sense that a small but eager-to-expand nation (Serbia/IS) has become aggressive and something absolutely horrible (but insignificant) has happened by their hands (assassination of Archduke Ferdinand/execution of a couple American Journalists) and now everything's starting to go nuts.
But only time wi... | [
"U.S. President Obama announced on 10 September 2014 that he would begin to pursue airstrikes in Syria with or without congressional approval. Starting on 22 September 2014, the U.S., Bahrain, Jordan, Qatar, Saudi Arabia, and the United Arab Emirates began airstrikes against ISIL targets in Syria with fighters, bom... |
Would the fuel economy be noticeable if I would never have more than half a tank of fuel in my car? | [Some asked a similar question a couple days ago.](_URL_1_)
To recap the answers there:
* A car with less fuel in the tank has less mass
* A less massive care requires less energy to accelerate to a given speed
* Given the above, driving around with less fuel in your tank should increase your fuel economy
As for the... | [
"Real world fuel consumption can vary greatly as they can be affected by many factors that have little to do with the vehicle. Driving conditions – weather, traffic, temperature; driving style – hard braking, jack rabbit starts, and speeding; road conditions – paved vs gravel, smooth vs potholes; and things like ca... |
was there some mutation in the line of dogs that make some have stumped tails that vary in length or was there breeding to develop this? | I believe the stumped tails are done at birth or very quickly thereafter to adhere to a "breed standard" set by the AKC. I'm a dog groomer and routinely get dogs that are 'supposed' to have stumped tails with their whole tail intact. | [
"There are many different shapes of dog tails: straight, straight up, sickle, curled and cork-screw. In some breeds, the tail is traditionally docked to avoid injuries (especially for hunting dogs). It can happen that some puppies are born with a short tail or no tail in some breeds. Dogs have a violet gland or sup... |
What do people mean when they say something in physics is an emergent phenomenon? | What they mean is that the phenomenon is not present in individual components of the system, but when those individual components combine into the system, the emergent phenomenon can be observed.
For example, the ability to carry sound is an emergent property of air; single molecules in air can't carry sound, but when... | [
"In scientific usage, a phenomenon is any event that is observable, including the use of instrumentation to observe, record, or compile data. Especially in physics, the study of a phenomenon may be described as measurements related to matter, energy, or time, such as Isaac Newton's observations of the moon's orbit ... |
How did Germans come to live throughout the Baltics? | You're not specifying any time, so I'm going to make an assumption, which is that you're talking about pre-Industrial times.
In that case, the question implicitly assumes that the modern nation-state was how things always worked. However, the whole "I belong to [nationality]"-narrative is a byproduct of the industrial... | [
"Baltic Germans left by ships from the port cities of Estonia and Latvia to ports of Gotenhafen and Stettin and then were transported to Posen and Lodz in \"Reichsgau Wartheland\" (sometimes called \"Warthegau\") and other Polish areas annexed by Nazi Germany. The \"new\" homes and farms they were given to live in ... |
The past never ceases to exist? If so, this means that, in someway, we never cease to exist too, am i right? | This thread is oddly void of meaningful information. | [
"The concept of an end of history differs from ideas of an end of the world as expressed in various religions, which may forecast a complete destruction of the Earth or of life on Earth, and the end of the human race as we know it. The end of history instead proposes a state in which human life continues indefinite... |
if roll bars and roll cages protect stunt car drivers, why aren't they mandatory for car munfacturers? | A roll cage is a pretty ugly thing that impinged on the interior space and access. What car designers do is build strength into the A, B and C pillars. If you cut the roof off a car you will see folded and ridged steel sheet. This is as strong as a roll bar in the type of accidents expected in a normal Road acciden... | [
"BULLET::::- Roll cage: Network of metal bars that criss-cross the interior of production-based sedan-bodied racing cars. Originally created as a safety device in more recent times it has been used to connect suspension, chassis, engine to substantially increase the torsional rigidity of a race car.\n",
"A roll c... |
how do different points on a vinyl record travel at different speeds? | Two different kinds of speeds gets mixed up.
Every part of the disk makes the same amount of rotations per minute. (this system is called *constant angular velocity* or CAV) It used to be mostly 45 or 33.33 rotations per minute for most records.
However if you measure the distance traveled of each point on the disk p... | [
"There is intentionally no speed listed on the release. In an \"AAA (Ask Autechre Anything)\" on the site WATMM, Sean Booth stated \"our original intention [was] to not write it on the record\". The durations above were measured when the vinyl was played at 45 rpm.\n",
"The average LP has about of groove on each ... |
why does daylight savings time end in the fall? wouldn't a constant shift in time to make more daylight in the evening be best in the winter as well? | Mainly because we need some light in the morning. In winter, sunrise can be as late as 7-7:30am already, pushing it back past 8am can make it dangerous for kids walking to school for example.
The other thing is most of the pros for summer DST are things like people staying out later thus increasing business, but peop... | [
"Daylight saving time (DST), also daylight savings time or daylight time (United States) and summer time (United Kingdom, European Union, and others), is the practice of advancing clocks during summer months so that evening daylight lasts longer, while sacrificing normal sunrise times. Typically, regions that use d... |
what is this g2a scandal everyone seems to be talking about? | Basically it is a marketplace where G2A the company themselves sell 'non-pirated', 'stolen keys' or 'hacked credit card' Game Keys to activate downloads with a decent discount.
But as it is a marketplace other "shops" are allowed to sell CD keys. These CD keys can come from anywhere, hacked/stolen credit cards, stolen... | [
"G2A replied that it had tried hard to find a \"win-win\" situation in order to resolve the issues with Riot Games and had banned accounts selling Elo-boosted League of Legends accounts, which was a key factor behind the ban. G2A claimed that Riot did not cooperate with it in its attempts to fix the issue and Riot ... |
Will the change in earths polarity have an effect on electric motors? | A change in the Earth's polarity (I assume you mean the poles swapped, as they do occasionally) should not affect most electrical equipment.
The Earth's magnetic field is actually pretty weak. It's why you need a magnetized needle to float in water to even make a makeshift compass. Most modern day electrical devices d... | [
"This implies that as the number of magnetic flux lines increase or decrease there is a subsequent change in induced voltage of negative or positive polarity. However the relationship of electric forces and magnetic forces were summed up in the Lorentz Force Law as:\n",
"When an external electric field is applied... |
what does putins anti-gay law say, and why is it so bad? | If i'm not mistaken, the law forbids promotion of non-traditional sexual relations among minors.
That itself is absurd, but the bigger problem is that the text of the law is so ambiguous that any public expression of "non-traditional love" o even any public comment can be punished.
(Sorry for my english, not my nati... | [
"During the rise of Putin, Russia has seen a resurgence in \"religious conservativism\" which has resulted in the indirect re-criminalizing homosexuality. An amendment was made to Russian legislation in 2013 that emphasizes the protection of children from information that could be deemed as damaging to their mental... |
Why did the Greeks help the Ionians during the Ionian Revolt? | Heya. Nice username.
We know much less about the Ionian Revolt than we would like to. Our only source for the events is the very unsatisfactory account in Herodotos' *Histories*. While Herodotos was from Halikarnassos in Asia Minor, and presumably knew a lot about the affairs of the Greeks in those parts, his tale of ... | [
"The Ionian Revolt was primarily of significance as the opening chapter in, and causative agent of, the Greco-Persian Wars, which included the two invasions of Greece and the famous battles of Marathon, Thermopylae and Salamis. For the Ionian cities themselves, the revolt ended in failure, and substantial losses, b... |
why do magazine and news websites use the click through, slide show format for images? i can't be the only person who hates them. are there any benefits to presenting articles this way? | Every time you click next it refreshes the page thus the ads causing more revenue. | [
"Magazines, especially those that target specific niche or specialized interest areas, are more tightly targeted compared to broadcast media. Additionally, magazines offer the option of allowing marketers to present their message using high quality imagery (e.g., full color) and can also offer advertisers the abili... |
why did james holmes get 12 life sentences plus 3,318 years if he only has one life to serve? | Because what if all but one of his convictions got overturned? In his specific case, this wouldn't happen, but it does happen, so judges make it so it is almost impossible for them to become a free person again. | [
"Holmes was sentenced to life in prison without the possibility of parole on August 7 after jurors failed to reach a unanimous decision over sentencing him to death. Formal sentencing began on August 24 and was expected to last for three days. At the end of the hearing on August 26, Samour formally sentenced Holmes... |
do babies defecate in the womb? where does, and how does, a baby get rid of its waste while still inside the mother? | They do not because all the nutrients and waste are transmitted through the umbilical arteries and veins. | [
"The amniotic sac, commonly called the bag of waters, sometimes the membranes, is the sac in which the fetus develops in amniotes. It is a thin but tough transparent pair of membranes that hold a developing embryo (and later fetus) until shortly before birth. The inner of these fetal membranes, the amnion, encloses... |
mass and weight. | In common usage, weight and mass are usually interchangeable.
In science and engineering, mass is constant. It's measured in kilograms and is independent of gravitational forces (m). Weight on the other hand is the force applied on a mass by gravitational acceleration (W=mg, can be a scalar or a vector) and is measur... | [
"Although the size of an object may be reflected in its mass or its weight, each of these is a different concept. In scientific contexts, mass refers loosely to the amount of \"matter\" in an object (though \"matter\" may be difficult to define), whereas weight refers to the force experienced by an object due to gr... |
[Physics] Can four-dimensional waves exist? | Waves of various sorts can certainly exist in any number of dimensions. There's no reason waves cannot exist in any particular dimension other than 0, where I'm including time in the dimension count.
I'm not sure I'm understanding your question, though, for two major reasons. First, we *do* live in a four-dimensional... | [
"In some systems, such as water waves or optics, wave-like states can extend over one or two dimensions. Spatial coherence describes the ability for two points in space, \"x\" and \"x\", in the extent of a wave to interfere, when averaged over time. More precisely, the spatial coherence is the cross-correlation bet... |
how can you time travel if you are going faster than the speed of light? | Ok. From what I understand, here goes:
First, imagine that time is a road on which you can only move forward at certain speed.
Now, Imagine you have two number lines. One number line is labeled "Speed through Time" and the other is labeled "Speed through Space". Each line goes from 0 to the speed of light. If you are... | [
"It is also debatable whether faster-than-light travel is physically possible, in part because of causality concerns: travel faster than light may, under certain conditions, permit travel backwards in time within the context of special relativity. Proposed mechanisms for faster-than-light travel within the theory o... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.