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/sci/ Science & Math

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Most viewed threads in this category

There is actually some simple math behind this simple magic trick

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https://youtu.be/d6dXdYKaST8
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So this happened on /pol/. Hear me out, it didn't devolve into racism suprisingly.

/sqt/: Stupid Questions Thread

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The other one is at the bump limit Why is slope-intercept form so popular, and why do we not use the x-intercept instead of the y-intercept?
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>ctrl+F >no /matsci/ >no /nano/ >no /chem/ >no /ogen/ even Alright guys, this thread is a dedicated MatSci and nanotech thread. Feel free to discuss all things relating to synthesis and mechanisms of your materials and your research (to whatever degree you feel comfortable). If you aren't involved in research, feel free to ask questions. Anything regarding synthetic chemistry, chemical mechanisms, or physical properties of chemical systems.
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When do trig functions stop being important in college level math.

Airfoils - How do they work?

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So we all know the high school textbook explanation of lift is incorrect. It explains that air molecules traveling over a cambered airfoil must travel faster over the top, a larger distance, in order to "meet up" with the molecules traveling along the bottom. This is wrong, as there is no physical principle or rule that necessitates that the molecules must "meet up." Amazing how often this myth is still perpetuated. Anyway, I know that lift is predominately the result of angle of attack, in accordance with Newton's 3rd law. This is the reason why most aircraft are designed with an angle of incidence (a slight upward angle on the wing relative to the aircraft's longitudinal axis), so that they can fly level while producing enough lift. However, I also know that a cambered airfoil, such as the one pictured, also produces a slight amount of lift at zero angle of attack as a result of its shape, via Bernouli's principle. My question is why? What causes the air to move faster over the top than bottom at zero AoA, thereby inducing lower pressure on the top than bottom? I haven't really found a straightforward explanation for this online. All resources simply state that air moves faster over the top but not why this particular shape creates this condition. This is what I'm interested in. Anyone have a concise explanation?
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I want to win the current JackPot of € 87,100,000: can /sci/ be of any help? The game is about guessing 6 numbers from 1 to 90; odds of winning are 1 in 622,614,630: https://it.wikipedia.org/wiki/SuperEnalotto
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What does /sci/ do? What did /sci/ study?

Can you recommend me Interesting arguments about nuclear energy?

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I am mostly interested in residual treatment and its economic viability
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check em nerds
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Who was the greatest genius of the 20th century? Has to be one of these guys

How does /sci/ compromise being born with a certain intelligence?

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Serious question, how do you guys compromise being born with a certain ability knowing studying/hard effort can only go so far? I know comparisons aren't good and you will always be inferior, however im looking for a more in depth explanation. how to better yourself general I suppose?
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guys i ate about 20 cookies with milk and felt guiulty and then made myself throw up about 15 times now my eyes are almost swollen shut and i got like a billion little red spots around my eyes and on my forehead also my eyes have big blotches of red in the white parts and i smell like vomit even though i wook a shoower what doi do? i dont feel well >pic related except much much worse
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Why are so many people majoring in CS? Won't 80% just be code monkeys? I don fully understand this meme. I'm about to start uni, and computer engineering seemed neat but after talking with a lot of people they said it was actually very boring, and so is CS. I might just say fuck it and go into math and physics
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I don't believe the world is round. How can you prove the world is round to me?
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Hey /sci/ So my parents say that May is a bad month for marriage, this seems to be more of a belief in the Slavic countries. I want to see what the stats say about this but can't seem to find any that state the month of marriage and date of divorce (if any) OR month of marriage and length of marriage. SO do you fells know of any good stats websites that might have the data for this? Cheers m8aroos
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http://ehp.niehs.nih.gov/1307044/ I'm genuinely interested in this study. Having seen some image from 'GMO Free USA' reposed by a person I know, complete nutter, by the way. Healing crystals and the like, which basically stated that exposure to pesticide during pregnancy is linked with autism. I'm typically inclined to disregard the page, it being filled with absolute shit and little to no validity in their claims, though would like to know how valid and reliable this study is and what they indicate.
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I don't normally use this board, but i think i might have fucked up real bad. Can a chemistry buff please help me figure out what ive created. I put 4 parts potassium carbonate to one part potassium ferrocyanide and it hardened, gave off alot of heat, a hard white chunk was left at the bottom of the test tube and the liquid produced was a dark pink in color. I did this in a room with shit ventilation and i have an insanely bad hedache, i did this in the bottom quarter of a small test tube, so it was a miniscule amount, is this placebo or am i going to die. Also what did i produce as a product? Thanks my dudes. Pic related, the hard bit that settled at the bottom.
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what does a math major even do after college? Work for a lame company? I-I'm scared
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If everything can be predicted if we were to hypothetically be completely aware of all of the atoms and molecules in the universe, doesn't that mean that everything is predestined and free will doesn't exist?






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