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/sci/ - Science & Math

 Name Options Subject Comment Verification 4chan Pass users can bypass this verification. [Learn More] [Login] File Please read the Rules and FAQ before posting.Use TeX with $tags for inline and [eqn] tags for block equations.Right-click equations to view the source.  05/04/17 New trial board added: /bant/ - International/Random 10/04/16 New board for 4chan Pass users: /vip/ - Very Important Posts 06/20/16 New 4chan Banner Contest with a chance to win a 4chan Pass! See the contest page for details. [Hide] [Show All] All work safe boards are now on the 4channel.org domain. Make sure to update your script blockers and whitelist the new domain. #### There's now a setting option under Navigation to display the full list of boards on 4channel.org The 4chan Vtuber Competition is over. Click here to see the winning entry! [Catalog] [Archive] File: sciguide.jpg (9 KB, 200x140) 9 KB JPG https://sites.google.com/site/scienceandmathguide/ >> Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path. If you want advice regarding college/university or your career path, go to /adv/ - Advice. If you want help with your homework, go to /wsr/ - Worksafe Requests. whats the largest number you can name? File: GHG_emission_sectors.gif (23 KB, 450x448) 23 KB GIF Look at this chart and then think of the HUGE changes that need to be made. Revolutions in all sectors of life: What needs to be done: >electrification of all road transport and major changes to public and private transport to make it both more efficient and entirely sustainable (no private electric cars are not even close to being the answer to this) >upgrade of the whole grid >maximization of all solar, wind and hydro that the country can sustain >building of nuclear plants to tie it all together >electrification of all industry and agriculture If you think the free market can do all of this on its own with just a steep increase in taxes, you're dumb as shit. This plan of action is greater than the war effort in WWII. There is no fucking way we can manage to fight climate change without direct government planning. Carbon taxes might at best incentive people to make their homes a bit more sustainable, if they can even afford that. Otherwise they are a big red herring. 6 replies omitted. Click here to view. >> >>10210469 changes in food consumption away from energy intensive and environmentally destructive sources, more efficient land use, more efficient technology, alternative energy sources such as nuclear, thermal, solar, wind, etc, methane capture from biomass, biofuel production, better public transport and a shift away from single person vehicles just some shit off the top of my head. there is no single silver bullet to climate change. if we're EVER going to fix it, it's going to be an enormous overhaul of basically our whole society. carbon taxes are a really big part of that but obviously not the only part >> >>10210383 >t. econ and science brainlet Renewables are a bust. Electrifying roads? Are you retarded? Where do you think electricity comes from? Even if you quadrupled the production of all renewables you still fall short of fossil fuel production, and renewables are an extreme energy negative to harvest at all anyway. >free market >tax hikes Pick one. Carbon taxes, solar/wind subsidies, etc. Is literally the opposite of the free market and is a major contributor to wasting money on solutions that don't work. Check out Solyndra for an excellent government meddling success story. >> >>10210511 how can you ever expect renewables to fairly compete without subsidies against a heavily entrenched industry with its own massive subsidies and a state that spent the last fifty years putting fingers in everyone's pies to provide us with cheap oil? if we're going to pull renewables subsidies for a free market, we should do it for petroleum products, too >> >>10210383 >tax on breathing air Come on now... focus on the enviromental damage from plastics and heavy metals. The ocean could be used to grow kelp and shellfish, but we polluted it so much it will never be an everyday food. >> >>10210484 The topic of the thread is explicitly government policy. You are talking about things that can be done. I'm asking what the government intends to do about it. And specifically I'm pointing out that the government cannot just implement carbon taxes and wash its hands. There is no way that is anywhere close to enough effort. And besides any realistic carbon taxes are going to be humongous. How do we fix the dropping birth rates all over the world? Even Africans are having fewer children. We can't let this happen. At this rate every "race" is going extinct. Even black people. It's not actually white genocide. It's genocide of everyone. We need to make it a more attractive to have children somehow. 167 replies and 20 images omitted. Click here to view. >> >>10195243 This, but only because western civilization lost its mind and decided that subsidizing idiots was somehow a good idea. >> >>10210405 rich doesn't mean smart dude >> Thot patrol Women do what men do nowadays and former natality roles are suspended or ended. >> >>10210467 If you're making minimum wage, you're sure as hell not smart. >> File: 1522301831440.png (396 KB, 591x864) 396 KB PNG >>10210530 ok File: IMG_20181211_223458~3.jpg (1.67 MB, 3120x3121) 1.67 MB JPG the fuck? should I just drop out? I can't understand any of this 36 replies and 4 images omitted. Click here to view. >> >>10210480 no >> >>10210454 It’s a mathgen book you dip. Graduate level texts are dense, not incomprehensible. There would be a discussion of motivation, goals, and insights before jumping into straight derivation. It’s just as scary, but it actually makes sense when you spend time to understand each page >> >>10209337 based >> >>10209156 I lost hard >> >>10209035 I bet some prof gave you this so you could Jack off to him while thinking what an amazing man he is File: balls.jpg (142 KB, 640x640) 142 KB JPG Why are the testicles of many mammals outside of the body? >(IT'S BECAUSE OF THE TEMPERATUUUREEEEE) Why didn't "evolution" evolve into producing more sperm at a temperature which is normal to the rest of the body, much like many other species on this planet? >> >>10210531 made it add revenue friendly btw, you're welcome, blueboard 4channel. 99% of you losers aren’t even in a top grad school. So don’t act smug on this board, losers. 24 replies and 6 images omitted. Click here to view. >> File: ta2hPIP.png (235 KB, 852x450) 235 KB PNG >telling anonymous users on korean basket weaving forum not to be smug I'm the fucking dean the "top grad school" Yeah that school and my dad is a navy seal. Also, you can never prove me wrong. >> File: 947.jpg (82 KB, 1280x720) 82 KB JPG >>10210464 The lord doesn't care how smug you are, if you're cute enough. Trust me, this nun knows. >> >>10210483 Posting a thinly disguised furry makes you automatically wrong >> >>10209667 I don't really care about 99% of you that much. >> >>10209667 >be in a top school >don't learn >what can possibly go wrong? Do you mean each school has its own science? File: collagen.png (99 KB, 850x605) 99 KB PNG Collagen structures in the skin differ between males and females (with male collagen fibres forming in a criss cross pattern and female fibres forming perpendicularly to the skin). Is this due to hormones or is it encoded in the X or Y chromosome(s)? More to the point, when a MtF tranny takes hormones their skin changes (becomes thinner and paler) but does their collagen structure change? Are MtF trannies as prone to cellulite as real women? File: image.jpg (609 KB, 750x1334) 609 KB JPG Shut. It. Down. twin.sci-hub tw/6583/798d1dcbabcf92419a87700aaac1110f/flynn2017.pdf 190 replies and 17 images omitted. Click here to view. >> >>10210256 Wow! What a collection of guesses and assumptions, all backed up by words lacking in any proper argument. The only attempt of analysis ends up comparing Kenyan children favourably with gorillas! I am not joking. Now that is a giant own goal if I ever saw one. >> >>10210502 Exactly my point only 5% of the population is capable of a PhD, in some populations like Jews, Europeans it is higher but still lower than is optimal >> my siblings and I inherited our IQs from our parents and we turned out to be just as capable of getting into medical school based on merit the same way. We come from a family of doctors so I think this IQ is OUR mean. Why does /pol/ say the race has to regress to the mean which is 100? >> >>10210293 >Besides, we need some low IQ people for certain jobs. Name these jobs. Robots are taking over a lot of jobs, starting with low skilled tasks. Those are most easily automated. >> >>10210337 >He says integration is inevitable Over the last few thousand years native Americans were not really integrated among Americans, Jews were not dissolved into the Middle East or Europe after the diaspora, the Sami are after 10000 years still distinct from Scandinavians. So what is the time scale here? Geological? File: 1543383359722.jpg (35 KB, 600x600) 35 KB JPG Does /sci/ think that it's possible to increase IQ? /lit/ 90 iq brainlet asking. I've heard you can but at a very young age. I was thinking about this for a very long time and I need to know now. I've googled it but results were inconclusive. I know that chances are slim of me getting an answer here (one that i can trust) but I have to try my luck. Pic unrelated. >> >>10209870 Based on what I have read, it isn’t very likely you can increase your IQ. Even intensive attempts from a young age only cause very slight increase at best (a couple of points). If you want to know more, I recommend reading the first few chapters of “The Neuroscience of Intelligence”. What evidence seems to suggest is that intelligence is mostly genetic and upbringing plays the smaller role. Twins raised apart usually had almost identical IQ scores, regardless of the difference in their childhood. >> >>10209870 look at Mensa members, they learned how to take an IQ test >> >>10209870 In theory yes. But it's very hard and you are probably not gonna do it by just studying in the converntional way. >> >>10209870 Having a large IQ is not the same thing as being overall intelligent or a good person. Yes, you are more likely to do well in many modern jobs if you have a high iq, but work is not life. You can work at a gas station your whole life and be far more happy and fulfilled than if you work as a overly wealthy professor of whatnot. But if you do want that status, that recognition, go get it. Play to your strengths, not someone else's, if you set your mind to doing something you will be a force to be reckoned with, as determination is something in short supply. The world is your oyster, but you still have to pry it open if you want that pearl. >> >>10209985 >bingo File: 1544431060118.jpg (49 KB, 640x845) 49 KB JPG Is sucralose really toxic to gut bacteria in humans? >> respond File: IMG_20181212_215505.jpg (451 KB, 1474x1559) 451 KB JPG What is Genetically Wrong with The 18 year Old Man in the picture? 2 replies omitted. Click here to view. >> >>10210463 it's never lupus man, literally never >> >>10210436 I only see a wholesome autist >> low iq genes >> >>10210513 regression to the mean exists though >> >>10210514 he overshot the mean while regressing and ended up on the high iq end, but the pull of the mean slingshot him toward the extreme low iq end. the result is the OP picture. If infinity doesn't exist, then how many integers are there? 122 replies and 10 images omitted. Click here to view. >> >>10210212 Mathematicians are most commonly more educated in the fields of epistemology and philosophy than other STEM professionals. That most mathematicians are platonists is simply because the platonic realm is objectively real, and mathematicians accept this truth like they accept any true proposition. >> In so far as infinity is a tool in which we may use, we use it to arrive at a finite conclusion. Should it pass that the result is itself infinite; we discard it and call it indeterminate. Irrational numbers exist, in the same way that the economy exists, that is to say, it is a human abstraction. >> >>10203514 numNumbers = last [1..] >> >>10203514 How long is a piece of string? >> >>10207790 Finitists don't allow infinite objects so they wouldn't use naive set theory (because it allows unrestricted comprehension) or ZFC (because of AI). Without going into details, a set theory that would satisfy a finitist (i.e., no infinite objects exist) can at best construct all of the integers, but cannot show that there exists a set that contains all integers. That is, the integers if such a notion exists would be a proper class under any acceptable version of finitism. File: iqtesting.jpg (82 KB, 1200x630) 82 KB JPG Hey, do you guys know a good way to measure your IQ? Like, any good site or something? 5 replies omitted. Click here to view. >> File: 1544063482887.jpg (59 KB, 846x1024) 59 KB JPG >>10210364 Guys, I have an IQ of 137(psychologist tested). Am I a brainlet? I'm doing pretty gud in math and physics. >> >>10210424 You can be a code monkey with that sort of IQ, but I'm afraid you've missed the cutoff point for being anyone of note. 150+ IQ is required to live a non-NPC life. >> >>10210424 Just because it is statistically correlated doesn't mean that every one with higher IQ is smart. Which would probably be your case, posting here about your IQ. >> >>10210424 Psychologists are dumb. Free online IQ tests are more accurate. >> >>10210424 Feynman's IQ score was 125. >Feynman was universally regarded as one of the fastest thinking and most creative theorists in his generation. Yet it has been reported-including by Feynman himself-that he only obtained a score of 125 on a school IQ test. I suspect that this test emphasized verbal, as opposed to mathematical, ability. Feynman received the highest score in the country by a large margin on the notoriously difficult Putnam mathematics competition exam, although he joined the MIT team on short notice and did not prepare for the test. He also reportedly had the highest scores on record on the math/physics graduate admission exams at Princeton. It seems quite possible to me that Feynman's cognitive abilities might have been a bit lopsided-his vocabulary and verbal ability were well above average, but perhaps not as great as his mathematical abilities. I recall looking at excerpts from a notebook Feynman kept while an undergraduate. While the notes covered very advanced topics for an undergraduate-including general relativity and the Dirac equation-it also contained a number of misspellings and grammatical errors. I doubt Feynman cared very much about such things. James Watson's IQ was probably 124 William Shockley's was 129, then 125 when tested a year later Luis Alvarez's was below 135 (he failed to qualify for Terman study) File: gpa.png (35 KB, 690x241) 35 KB PNG I had this question on my linear algebra exam and I couldn't figure out how to do it. I had to find the equation of a plane parrallel to 2 vectors, and the plane had to contain the point (3,2,1) I forget what the two vectors were, I managed to figure out that the angle between the two vectors was pi/6, the dot product of the two vectors was 5 iirc. Also my schools grading system, please laugh at how retardedly low the grades are inflated >> >>10210477 >Also my schools grading system, please laugh at how retardedly low the grades are inflated How can we tell how much the grades are inflated from that chart, retard? >> >>10210477 I saw a cloud today. It was very big, and incredibly high up.. > equation of a plane parallel to 2 vectors Did you study linear algebra for the whole 23.5 hours before you took the exam? With a and b the vectors, and v_0 the point (3,2,2), your plane is given by [math]\left\{ \ x \ \left|\ \ (a \times b)^\mathrm{T}(x-v_0) = 0\right. \right\}$.
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>>10210493
I think he meant how easy it is to get an A.

A D should start at 60 IMO and an A- should start at 87

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