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Integrated physical science, which consists of three parts:
1)surveys of ecological & economical physical science
2)lectures (& quizes) of your standard physical science curriculum
3)you basically start with a box of minerals, a lighter, and some firewood & you have to make your own lab equipment, which you use on your future experiments. example: you want a test tube? they give you the minerals and you have to make it. You want to make a laser for fundamental science? You have to build it.
I know there would be lots of roadblocks, such as a personal storage space for each student.
How long would it take to be able to be up to date of the entirety of human history?
2 replies omitted. Click here to view.
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>>9694900
hey, at least it won't become a lost science
>>
the thing is, at any time at your degree, you'd have learned a craft and you could leave and go into business
I don't believe in government, but image if somebody finished this and became president of the world
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>>9694925
I'm talking PARADIGM shifts
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>>9694859
fucking why? What's the point of wasting time making test tubes from scratch when test tubes are cheap as fuck? Trying to make a diode laser from dirt is going to take a long time. A very long time.
>>How long would it take to be able to be up to date of the entirety of human history?
long enough that a single person would never be able to catch up.

Even David J. Gingery, who bootstrapped the industrial revolution in his backyard never got up to the current year. And that's with a huge amount of cheating and short cuts.
>>
>>9694958
https://youtu.be/wZ_lvQEsJ0c?t=1m14s

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Ultimate brainlet test!

Answer correctly to prove you're not a brainlet.
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>>9694944
yes.
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>>9694944
"Whether Random speaks truly or not should be thought of as depending on the flip of a coin hidden in his brain: if the coin comes down heads, he speaks truly; if tails, falsely."
the other gods can know into the future or past so they know what the coin flip will be/was
>>
>Asked which park their father is in
>Responds with a street
???
>>
>>9694496
If White George is lying, it leads to a contradiction, for both cases if White George always lies or sometimes lies. Ergo, he must be truthful about Canal Street.
>>
>>9694923
First qeustionimplies yes for everyone.

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What's the worst textbook you've read /sci/?
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>>9687611
This really wins
Had this book + a really autistic foreign professor that couldn't explain shit
Like 80% of the class failed the exam and it made me hate differential equations with a passion

In retrospect I should have dropped all the lectures and just studied with a different book.
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>>9693410
https://web.williams.edu/Mathematics/lg5/Rota.pdf
>>
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>>9688814
It's hard to write a good complex analysis text. Only Ahlfors pulled off an excellent text, Sarason's text is Ahlfors lite, Donald Marshall's notes are on par with Ahlfors for creativity. Stein and Shakarchi is ok at best.
>>
>>9693785
You see Flux integrals are like onion,
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>>9693808
Shoulda used the one by Zill he's GOAT for brainlet like me

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I kinda learnt fourier series :)
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>>9693402
Congratulations
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>>9693402
I'm not educated much and I work in retail but have some interest in math. How does one learn this and how can I apply it somewhere? I saw 3Blue1Brown's video about it and got a rough idea about what it is. I'm fairly okay with Math so I can learn it. I still don't know how I can actually apply it. I started playing with Software Defined Radio recently and thought knowing the fourier transform will come in handy.
>>
>>9694839
Nah, you're thinking about the fourier transform, different thing. Fourier series is a way to approximate periodic functions using sines and cosines.
>>
>>9694880
Its not really a different thing: Fourier series are just the Fourier transform of a function supported on an interval, suitably interpreted.
>>
>>9694880
The Fourier transform of a suitable periodic function is just a bunch of discrete Dirac deltas anyway, with their weights given by the Fourier coefficients, so the Fourier series is really just a special case. Or as a math guy would put it >>9694908.

Hi, I'm an autist and I was wondering, are there any real benefits to being autistic, or an autistic savant?
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>>9694044
You become a good shitposter
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>>9694044
Some autists are better at something specific and exceed in it. But that's quite rare. If you're asking you either aren't autistic or you don't exceed at anything.
>>
The thing about autism is that when coupled with high intelligence, it's a godsend and you have the capacity to excel in STEM fields if you really apply yourself. But it's not going to help you if you're only moderately intelligent or lower, unless you need rote memorization. It really only amplifies whatever you already have.

Is there a complete "book"/ website of all known maths, where everything is consistent, theorems reverence each other up to axioms of ZFC and nothing is left "as an exercise"?
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>>9694347
This is impressive.
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>>9694404
Why compile all of mathematics when even experts only get expertise in a small part?
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>>9693832

That feel when OP picture triggers me and I am fucking engineer.
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>>9694518
No one cares what you think, brainlet
>>
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>>9693832
>Economics included in the map of mathematics

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Does needing extra time in an exam make me at least a bit brainlet
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>>9693895
We reserve "brainlet" for the people who NEVER get the right answer, no matter how much time they're given or how often it's explained to them.
>>
>>9693895
if you cannot solve the problem within the allotted time, it simply means you probably shouldn't be a bomb disposal expert.
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>>9694731
This is carrying on from the last post because I have more to say:
Most classes in math are garbage at presenting actual material to work with.
They are designed, not to teach mathematics, but to weed out those who are not naturally proficient at it.
They give you rote learning questions and then ask you to solve them under a short period of time.
You don't learn actual math this way (and this is why people hate math - they're not actually doing math).
Instead, it should be structured like an English course which asks you to write sufficiently complex proofs over the period of the semester.
I mention English because it should be structured in such a way as for you to make a rough draft, peer review it, then re-adjust to be handed in at the end of the semester or during mid-terms.
Bomb disposal math is pointless and doesn't actually teach people what math is.
>>
>>9693895
My experimental methods professor was notorious for his exams. Literally gave us 6 hours on our final and most of the class still didn't finish. Fuck that guy.
>>
>>9693895
Some student who studied diligently for a month may be able to finish the exam in 10 minutes because they had all the answers memorized, but if another student who didn't study at all takes extra time and gets the same grade as the study student, who would you say is more of a brainlet? The speed at which the exam is finished usually indicates the preparation by the student, not necessarily the intelligence.

Why is CS either considered really good or really bad on this site?
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>>9694715

of course i take it seriously. it's a serious matter.
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>>9694341
Why the fuck would elon know dick all about technology? His attraction is a combination of charisma, vision, and intelligence - he isnt a scientist or technologist by any stretch of the imagination. Appreciate him for what he is not the tony stark analogy you want him to be. Doesnt matter though since your chosen form of argument almost certainly makes you an idiot.
>>
>>9694114
Assad is a computer nerd and a certificate eye doctor.
>>
>>9694256
AHAH GR8 JOB
>>
>>9694134
>Like 90 percent study law or economics though

more like 90% study law, there are very few economists that go into politics beyond advisory roles

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Why does the brain lower the body temperature when we sleep?
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>>9694878
Why would you overheat?
>>
>>9694846
I'm guessing it's to slow down the metabolism, but it's just a guess. I'm no biologist.
>>
>>9694846
To conserve energy maybe, since it's not needed while you sleep
>>
>>9694898
Keeping your body warm should be needed.
>>
>>9694918
It does stay warm enough to keep living, just not warm enough to be at peak performance.
Or something

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2.8 million year ago "first human"
40 years muh internets.
We need to thank toJews for the enormous contribution to science and human improvement. If not the silicon valley we would still smoke cigarettes and watch Bonanza on black and white tv.
6 replies omitted. Click here to view.
>>
>>9690937
I like Bonanza, also, most contributors to computing and information science were White not Jewish. Jews invented the Von Newmann architecture and the FET transistor, Whites invented the MOSFET transistor.
>>
Now we vape and watch facebook on blue phones
>>
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>>9690937
>>
>>9690937
>We need to thank toJews for the enormous contribution to science and human improvement.
>Jews

>>>/pol/
>>
>>9690943
MRI came from England you dumbfuck

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What is the point of spending billions of dollars on space missions just to look at things far away? Sure, the satellites and the robotic probes in our solar system are useful since they have engineering applications but what about the money spent on things far away? What about spending billions on the JWST or the Hubble? I get the argument that it's there for advancing science but if that was really the motivation to do this then why isn't any of the raw data available publicly? Why isn't there a central repository of historical data captured by the hubble that I can access? If the reasoning is that other countries could outpace you in terms of technological development, then what about just releasing data from space missions from 20-30 years ago? How is the general public benefiting from us other than just having better consumer goods? Why are independent / citizen scientists left out?
>>
>>9694827
They wiped the data because they needed more hard drive space, they don't need to give in to your unreasonable demands.
>>
>>9694827
The raw data is available publicly. Here's Hubble:
http://hla.stsci.edu/

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What next major scientific breakthrough would benefit humanity the most?
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>>9690104
Gene therapy. I think no one mentioned this.
>>
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>>9694039
>cash-distributed-under-ssi-for-children-now-exceeds-welfare
Sounds like welfare is down to me.
Also:
>low-income families with disabled children
Wow, let's throw the handicapped kids under the bus. That'll make America "great" again.
...what a douchebag
>>
>>9691763
You have an apple. You cut it 0 times. You still just have an apple.
>>
>>9693966
Yeah, its the single most exciting prospect of modern physics and is the primary reason I majored physics.
>>
>>9694626
>You cut it 0 times
Cutting it one time gives two pieces, thus dividing by two.
Cutting it zero times gives one piece, thus dividing by one.
Cutting it -1 time gives you???
Also: Why is zero apparently grammatically plural?
"two times, one time, zero times"

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Don't think there's a perfect board for this question so I'll try here.

Are there examples of >wild< animals displaying compassion towards animals of another species? Non-human and video evidence preferably.
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>>9694321
Dubious. Rats eat their dead but they don’t kill eachother on purpose.
>>
>>9693365
>he JUMPs at the chance to talk about race
Lmao
>>
Wouldn't /an/ be the perfect board ?
>>
>>9693425
Lying or retarded.
>>
>>9694468
That's just broken instincts.

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How do I learn to read equations?
2 replies omitted. Click here to view.
>>
just study branches of mathematics until you start to recognize shit.
>>
>>9693644
>>9693782
Good advice, that's what I'm doing, thanks.
>>
Concidering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

Considering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

But your question is kind of hard to answer as you don't say what you mean by "read equation". It depends how deep you want to see through an equation. Indeed, learn Maths will make you know what corresponds to what. However learn math to understand equations is the same as learning Cyrillic to know Russian. You know which character corresponds to what, but you still won’t understand shit about what is being said. By getting a minimum knowledge in Maths, you will learn that you are free to call the variables the way you want. You can do a whole equation solving drawing a flower instead of writing X, as the flowers is the symbol that represents the variable.

Most of the times though, what is written in an equation is not containing flowers because scientists standardized the variables, to be understood by all. As No.9693033 said, you not only need to learn maths but also the subject to be able to understand the equation. The more subjects you know, the easier the understanding will be. If you know the basics of the topic you will be able to see the equation, find some easy links between the variables, the behavior it is describing but not much more. I would say that it takes months or years of practice to be able to understand deeply the meaning of a set of equations that is describing a physical phenomenon.

So yep, work is the key
>>
>>9693010
Concidering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

Considering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

But your question is kind of hard to answer as you don't say what you mean by "read equation". It depends how deep you want to see through an equation. Indeed, learn Maths will make you know what corresponds to what. However learn math to understand equations is the same as learning Cyrillic to know Russian. You know which character corresponds to what, but you still won’t understand shit about what is being said. By getting a minimum knowledge in Maths, you will learn that you are free to call the variables the way you want. You can do a whole equation solving drawing a flower instead of writing X, as the flowers is the symbol that represents the variable.

Most of the times though, what is written in an equation is not containing flowers because scientists standardized the variables, to be understood by all. As No.9693033 said, you not only need to learn maths but also the subject to be able to understand the equation. The more subjects you know, the easier the understanding will be. If you know the basics of the topic you will be able to see the equation, find some easy links between the variables, the behavior it is describing but not much more. I would say that it takes months or years of practice to be able to understand deeply the meaning of a set of equations that is describing a physical phenomenon.

So yep, work is the key
>>
>>9693010
Concidering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

Considering the fact that equations is a structured and conventional way to write down a phenomena/behavior/concept... i still believe that equations can be considered as a language (as much as we can talk about C or JAVA language).

But your question is kind of hard to answer as you don't say what you mean by "read equation". It depends how deep you want to see through an equation. Indeed, learn Maths will make you know what corresponds to what. However learn math to understand equations is the same as learning Cyrillic to know Russian. You know which character corresponds to what, but you still won’t understand shit about what is being said. By getting a minimum knowledge in Maths, you will learn that you are free to call the variables the way you want. You can do a whole equation solving drawing a flower instead of writing X, as the flowers is the symbol that represents the variable.

Most of the times though, what is written in an equation is not containing flowers because scientists standardized the variables, to be understood by all. As No.9693033 said, you not only need to learn maths but also the subject to be able to understand the equation. The more subjects you know, the easier the understanding will be. If you know the basics of the topic you will be able to see the equation, find some easy links between the variables, the behavior it is describing but not much more. I would say that it takes months or years of practice to be able to understand deeply the meaning of a set of equations that is describing a physical phenomenon.

So yep, work is the key

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What is the metric tensor conceptually and mathematically?
3 replies omitted. Click here to view.
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>>9694657
Is it a norm for a type 2 tensor?
>>
I'm gonna look it up anyways don't worry
>>
>>9694649
It's similar to grav potential
>>
>>9694644
A tensor is an n^n dimensional array of vectors.

A metric tensor is a tensor whose components are normalized w.r.t the basis vector of the dimension you're working in.
>>
>>9694644
Positive definite symmetric matrix that defines the dot product.

Let X=[x1,x2,...]
The regular dot product is defined as (X dot X)=X*transpose(X) >0 for X not 0.

You can throw an Identity matrix between to get
X*transpose(X)=X*I*transpose(X)
Here I is the metric tensor (Kronecker delta)

This gets generalized to (X dot X) = X*M*transpose(X) > 0 for X not 0.
Where M is the metric tensor.



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