Archived threads in /sci/ - Science & Math - 491. page
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>algebra is not real mathematics
>calculus is not real mathematics
>anything that isn't pure mathematics or chem/mech/elec engineering is pleb tier.
>if your iq is not at least two standard deviations above the mean, don't even think of studying STEM.
engineering is pleb tier, so you clearly didn't lurk enough
>algebra is not real mathematics
Algebra is real mathematics.
>calculus is not real mathematics
Calculus isn't because Calculus is by definition Analysis without math.
>anything that isn't pure mathematics or chem/mech/elec engineering is pleb tier.
Every field can be pleb tier or god tier depending on what you do in it.
>if your iq is not at least two standard deviations above the mean, don't even think of studying STEM.
IQ is meaningless.
>>7765638
>engineering is pleb tier
>daily threads declaring engineering to be god tier
What happened before big bang?
matter and anti-matter were slowly approaching each other
The world was a hot dense state
>>7765623
The Big Tease.
Hi sci, I bet you can't tell what went wrong. PIC related
>>7765541
Termen =terms
Differentieren = derivative
>>7765541
You forgot to differentiate "n terms" which is another n-dependency.
i like how from 2n=n you were able to conclude 2=1 rather than n=0
How do I produce NaCN with the reactants:
charcoal
cyanuric acid
sodium bicarbonate
all are in fine powder. And how many parts of each, and how hot?
>>7765488
OP here, I just made sodium carbonate by heating sodium bicarbonate. Now the reactants are
charcoal
cyanuric acid
sodium carbonate
How do I synthesize NaCN from these?
>>7765499
Lol youre better off making HCN from Potassium Ferrocyanite and Phosphoric Acid. Then treat the HCN with NaOH and you get NaCN and H2O.
3K4[Fe(CN)6] + 6H3PO4 -> 18HCN + 4K3PO4 + Fe3(PO4)2
HCN + NaOH -> NaCN + H2O
>>7765516
Will this be effective to get CN in powder form? You're suggesting:
-mix ferrocyanide and phosphoric acid, burn them (I assume at 300 Celsius for 20 minutes or so) to create HCN
-Then "treat" the HCN with NaOH and you get NaCN and H2O.
Is that correct? Your instructions are vague but I think It's simple and I appreciate it. I just don't know what "treat" means to you (burn them or just mix them?) since I'm not experienced in chemistry.
How...
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Why don't we have Thorium reactors yet?
>>7765480
Can someone explain that pic to me like im a 3 year old ?
>>7765480
>Why don't we have Thorium reactors yet?
No one wants to make the fuel infrastructure development effort without a full understanding of thorium's nuclear fuel cycle, and assurance that any reactor using it would actually be profitable through the end of its life cycle.
>>7765480
Two reasons - thorium reactors are too clean, they don't produce weapons grade plutonium as a bye-product which is where the real profit is (iirc david susuki gave a lecture about the inefficiency of uranium reactors some years ago?) and (again, iirc) something about them requiring liquid sodium which is next to impossible to plumb, because that shit eats through everything (or maybe liquid floride? i dunno, I don't know shit about chemistry). Something about a thorium reactor built in Scotland in the 50's...
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Why haven't you read the most important text in Nutritional Science yet?
Before any of you idiots try to argue against the book without reading it, you might as well stop now. The book has over 2,600 scientific articles referenced to prove its point. I doubt your clumsy arguments are worth even being considered.
Wow dude memes El Em Ayy Oh
The oxidation rate of Sulfur S4O6 2- right?
But what about Boron, those two are tricky. What's the differences?
Now if we solve it conventionally 4x - 12 = -2 so now you might wonder how we got a fractional oxidation state.
But the answer lies in the structure of the tetrathionate ion, right?
>>7765431
>rate
state?
what's the difference between B and S?
they are in different groups
>>7765435
Oops. Yes, Sate. This is Ochem. I am trying to find the product of
Why do only certain fishes posess electric organs?
Is it impossible for land-based lifeforms to have these too?
Would they even work on land?
How much do these fishes need to eat to make up for the energy loss?
Is it possible to breed humans with electric organs?
And with electric i mean strong enough to paralyze/kill foes
>>7765379
Bump
You will never be a human tazer
>>7765409
afaik these electric organs are basically modificated muscles. Why cant land-based lifefoms develope this.
is it possible to learn everything? can you spend your whole life accumulating debt and taking courses?
what would it be like?
>>7765378
>Is it possible to learn everything
no.
>>7765378
>Is it possible to learn everything
no.
>>7765378
>Is it possible to learn everything
no.
I never went to college but I always liked math, I even did a calculus book by myself over 10 years ago but now I want to learn more and also became interested in programming, is project Euler a good way to learn both of them a the same time?
TL;DR: Should I use project Euler to learn math and programming by myself?
Yeah why not? Combine it with other sources of learning, like khan academy and books.
>>7765411
Any recommendations in what programming language/books should I pick?
>>7765364
http://www.kuro5hin.org/story/2012/4/27/21151/3984
The time is nigh for /sci/ to write a collaborative textbook in the same vein as /lit/'s critically acclaimed masterpieces legacy of totalitarianism in a tundra and hypersphere. Post your topical suggestions ITT.
>>7765250
>Why pop science is shit, by /sci/.
The book will practically write itself. In fact you could probably write a bot that just scans the archives and dumps them into a text file. Then all you need to do is send it off to an editor and bada-bing bada-boom we're authors.
>>7765250
I have been tempted to try to write a book on GR that could be read by a high school student with no math experience higher than precalc. Start with the fundamentals of calc and try to develop everything from a highly geometric perspective that will make GR feel natural.
Unfortunately I am both busy and lazy.
Don't forget triple integral, algebraic topology and HoTT.
>"emotional IQ"
>"OP"
>"A good poster"
>>7765021
\upvote
Are you suggesting that there's no such thing as emotional intelligence?
Talk shit about my field:
- Systems Neuroscience.
I study how the brain processes visual information experimentally and computationally.
>Talk shit about my field
OK
Correlation =/= causation
Sounds fairly interesting.
Sorry I didn't provide the sperg out you were hoping for.
How many animals do you kill a week
Last month, i was watching an anime series about time travel (Steins Gate), and then i learned the term 'Kerr black hole'. upon further research, i read that these are theoretical singularities without an event horizon. i don't matter if these are suitable for time travel, but this 'naked singularities' can be real? the relativitity allow these to exist? i want to hear your oppinions about this matter.
>>7764541
>inspired by chinese girl cartoons to look up something
kill yourself
>>7764541
No they don't exist, no relativity does not allow them to exist.
Sounds like a good meme though.
>>7764550
well... it's obvious that you're a person that don't have any serious idea to comment. find psicological help :v
/agdg/ here. Basically im new to maths and am trying to figure out how to crop x y coordinate input values inside a circle value. So basically what mathematical wizardry do I need to calculate the length of y and x?
Trigonometry.
>>7764473
this desu
>>7764473
OK please can you answer the pic so I understand what to do? I've been stuck on this problem for a long time. I just want to crop controller xy inputs inside a circle.
