Currently in university studying Engineering and I always do badly on maths tests, I think it's because from the beginning I only really used to learn how to do problems by their solutions and I never gained a real understanding. What would be the best way to go about learning from the very bottom and is it even going to be worth my time?
>>8905755
Algebra by Gelfand and Shen
Functions and Graphs by Gelfand, Glagoleva, and Shnol
The Method of Coordinates by Gelfand, Glagoleva, and Kirillov
Trigonometry by Gelfand and Saul
Keep at it until you succeed
I'm just doing khan academy...just finished 3rd grade
never realized how much I actually sucked at certain types of word problems when checking out 5th grade material
Its kinda fun
>>8905762
My man Gelfand seems to have the hookup. Cheers anon
My maths grades on my academic transcripts are fairly weak, despite glowing grades in advanced economics courses.
Its because I didn't study maths and sort of ignored it and hoped it would go away. Now I've got a major redflag on my degree for anything more quantiative job-wise - despite excelling at the actual application of metrics and theory.
Is there any post-university qualification I can get in Maths (in the UK)? To show I'm worth shit and to undo the impression my transcript gives off?
>British econfag ignores math
this is why Brexit happened you cunt
>>8905690
No one actually reads your grades when you're applying for work.
>>8905690
>maths
Stop speaking like a retard. It's "math", you don't call chem "chemy" do you?
Was the solid state battery another meme drive?
>>8905422
> Was [it] another meme drive?
Probably.
Note: solid electrolyte batteries existed before this particular paper.
Note: I still haven't found good confirmation that it's 3x better capacity / mass. It may be 3x better capacity / volume. The 3x better capacity / volume is believable, but the 3x better by mass is less believable. I stopped looking into it, after not being able to find any credible solid sources. The paper itself doesn't clear it up either. It's most unfortunate.
>>8905437
You're the reddit guy who was called out by actual specialists in the field in the last thread.
>>8905551
>specialists
Lol
Why can't we harvest the energy from nuclear reactors in a more efficient way than boiling steam to turn a turbine?
>>8905235
We can, that's just the simplest method.
>>8905235
The main byproducts of uranium fission by energy are heat and neutrons. Neutrons aren't charged, and therefore you can't use them to make electricity, so you're best off just turning their energy into heat as well.
Now you have a hot lump of metal. How do you get electricity? Well, either some kind of heat engine or thermoelectrics. Look those up, and you will see why steam turbines is the best choice.
>>8905338
Supercritical CO2 Brayton cycles may become a thing, but they're still experimental and/or not as good as conventional steam cycles. Of course, from a high level, it's practically the same thing: Heat a liquid to spin a magnet in a coil of wire to produce an electric current.
How does SpaceX get anything done with high turnover rates and dissatisfied employees?
https://www.inverse.com/article/31478-spacex-settles-underpaid-workers-lawsuit-for-4-million
>>8905206
there are more then enough people wanting to work for spacex.
also as long as you have continuity plans. your down time from getting new people up to speed is minimal.
>>8905206
>oh noes, SpaceX underpaid its workers by an average of $500 each
>what a disaster
A couple of disgruntled ex-employees, probably dismissed for underperformance, got together with greedy lawyers and started a class-action over some technicalities.
The employees got like an extra day's pay, the lawyers got $1.3 million. Good job, California courts and regulators!
Idiot who wrote the article put:
>SpaceX (along with Tesla) standout in the tech industry as among the lowest-paying companies to work for, but it is still ranked incredibly high in customer satisfaction, according to a March 2016 survey by Payscale.
...but of course, it's EMPLOYEE satisfaction. They're ranked incredibly high in employee satisfaction.
Nobody goes there looking for a 9-5 or expecting to get rich. They're fighting to be on the team that makes the Space Age dream comes true.
>>8905317
everyone is going to gloss over that aerospace is already a fucking nightmare to work in. unless you work for the government.
https://www.youtube.com/watch?v=Vc4gv2X4VmM
>>8904961
mmm so bb
>>8904961
how can someone so white have such a non-white nose
Going to college for a job. That's where you fucked up.
I have come to the conclusion that most of this board regards Euler as the king of math.
... But I think we all know that the throne belongs to Uncle Gauss.
>>8904956
yes, but Gauss was an ass. Euler was more of a bro.
Euler was better. Gauss was also a cunt.
>>8905108
brainlet here, why was he a cunt?
Singapore tops latest OECD PISA global education survey, Japan, Estonia, Finland and Canada are the 4 highest performing OECD countries.
www.youtube.com/watch?v=q3TCpzSe4cs
www.youtube.com/watch?v=kgxnle0d_-U
www.youtube.com/watch?v=k8PyHVDmbZo
www.youtube.com/watch?v=9Wbl-PflEc0
www.youtube.com/watch?v=HZjxkDA1s-c
www.youtube.com/watch?v=-xpOn0OzXEw
www.youtube.com/watch?v=YiczDPx96ac
www.youtube.com/watch?v=KdMN8ioUYGc
www.nier.go.jp/kokusai/pisa/video/How_does_PISA_work_640x360.mp4
all4ed.org/debunking-seven-myths-about-pisa/
www.oecd.org/pisa/pisafaq/
www.oecd.org/pisa/data/
52.31.27.158/PISAoccupations/
OECD PISA tests the skills & knowledge of 15 year-olds, providing the global benchmark for the quality, equity & efficiency of school systems.
>>8904954
Schools are not just places where students acquire academic skills; they also help students become more resilient in the face of adversity, feel more connected with the people around them, and aim higher in their aspirations for their future.
Not least, schools are the first place where children experience society in all its facets, and those experiences can have a profound influence on students’ attitudes and behaviour in life.
PISA is best known for its data on learning outcomes, but it also studies students’ satisfaction with life, their relationships with peers, teachers and parents, and how they spend their time outside of school.
PISA results show that students differ greatly, both between and within countries, in how satisfied they are with their life, their motivation to achieve, how anxious they feel about their schoolwork, their expectations for the future, and their perceptions of being bullied at school or treated unfairly by their teachers.
Students in some of the countries that top the PISA league tables in science and mathematics reported comparatively low satisfaction with life; but Finland, the Netherlands and Switzerland seem able to combine good learning outcomes with highly satisfied students.
It is tempting to equate low levels of life satisfaction among students in East Asia or elsewhere to long study hours, but the data show no relationship between the time students spend studying, whether in or outside of school, and their satisfaction with life.
And while educators often argue that anxiety is the natural consequence of testing overload, the frequency of tests is also unrelated to students’ level of schoolwork-related anxiety.
There are other factors that make a difference to student well-being, and much comes down to teachers, parents and schools.
>>8904954
Immigrant students perform better in science than non-immigrants in ARE, AUS, CAN, GBR, HKG, ISR, JOR, MAC, QAT, SGP, & USA
>>8904966
Where do disadvantaged students achieve the best results in science?
>Proof: Omitted.
>>8904908
>we'll leave the rather tedious development of this equations to the reader
>>8904908
>Proof: Omitted.
>Proof: Easy
I have two questions. First, is gravity a function of mass or density?
Second, I´ve read that there are types of black holes that one could theoretically fall into and not be spaghettified. If that is accurate, what do you propose one would see/experience while falling in, and what would happen when/if one reached the ¨center¨?
>>8904761
1) Mass
2) Black holes are yet to be proven so that's the end of any discussion within scientific limits you'll ever get.
>>8904767
I know, Im asking for the theoretical idea of what might happen.
>>8904761
Keep in mind thst this is complete speculation, nobody really knows what approaching a black hole would be like, and nobody will ever likely know what it's like entering a black hole.
As you approach the event horizon (The distance to the black hole that would require you to travel at the speed of light to escape the gravitational effects) of black hole, relativistic effects apply. It would be weird. Light would bend around the hole, so you would see things behind it. Time dilation means that what you perceive as normal time is actually very long time for those further from the black hole. You would see their lives and technically all of time pan out in front of you, albeit so warped none of it makes sense, then you'll see only black. That's about it.
Hey /sci/. Is this MRI scan indicative of frontal lobe damage/frontal lobe lobotomy?
Here's another MRI picture of the same brain.
sagittal cut?
>lobotomy
no, unless you're on the worst level possible
>>8904359
Here you go.
Bump with the best greentext, threads, etc. from /sci/
What are the evolutionary purposes of dreams, if any?
>>8903596
"Training", so you think about different scenarios that might happen but are improbable. This way you have at least some slight idea of what you might want to do in that circumstance.
My theory is its your consciousness trying to communicate with you. You are actually two beings.
>>8903601
A lot of times, dreams can be very nonsensical and certainly will never happen. How is it "training" then?
>engineers honestly believe the Dirac Delta is a function
It's properly fubction, it's just not a real valued function.
>>8903480
generalized functions are functions
>physicists honestly blieve Kelvins are degrees
Can you drown in it?
>>8902828
No.
>>8902828
Probably not. Would you like to test my hypotheses, OP?
>>8902828
Stick your head in it, and inhale deeply.
Pretty sure there's no way to survive that.
So, yes.