Archived threads in /sci/ - Science & Math - 493. page
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Is this a good introductory text?
>>7763550
My used it.
Has a very well refined pedagogy, the author puts real effort in to trying to help students understand the material instead of just trying to impress other physicists.
Very comprehensive for an introductory text. My edition including intro to SR, QM and particle physics.
/sci/ elitists will tell you it's utter shit and to get a real textbook.
>>7763558
My programme* used it.
>>7763550
>Walker
Get the version with KRANE
I was wondering, is pic related considered popsci by /sci/? What about 'Phantoms in the Brain'?
absolutely not. Kahneman is nobel laureate.
inb4 not real nobel
inbox behavioural econ not real science
It's popsci but it's good popsci
>>7763557
nobel doesn't mean not popsci.
However this is a really interesting book.
Are these Feynman lecture videos recommended or is there something better? I'm just a maths major who wants to learn some physics while watching comfy youtube videos.
https://www.youtube.com/watch?v=j3mhkYbznBk
Also, can you recommend me something with assignments too?
You will get a lot more out of these.
http://theoreticalminimum.com/courses
>>7763724
>Taught by a man who literally believes in String Theory which gets ridiculed by every serious physicist.
>>7763732
0/10
What is in your opinion the best and worst engineering degree?
"Best" and "worst" in terms of making money, having a future etc.
>>7763519
why have you made this thread again
are the billion prior threads not enough?
>>7763519
The one you in the field you find most interesting and would like to work in.
Medicine
What's a good, basic introduction to differential equations?
Textbook general, I guess.
I like the book by Aulbach.
simmons is pretty great so far tbqh
I've been recommended these books to learn math:
The Mental Calculator's Handbook
Algebra by Gelfand and Shen
Elementary Geometry from an Advanced Standpoint
Anything you would add or take away?
What does /sci/ think of Khan Academy?
Good introduction to some subjects, but not much more than that.
I like it. I don't use it much, but I think services like that in general are awesome--definitely a step in the right direction. The internet is an awesome platform for education, but distributing education over the internet is still in its early days.
>>7763428
I plan to learn at least calculus thanks to it
What does this mean when talking about suitable domains?
>>7763411
It means x is real.
>>7763411
x = variable x
∈ = 'is an element of'
R = real number set
Hence, x∈R is simply a small note stating that x is a real number.
>>7763412
So how big do I need to make this graph?
this guy walks up and slaps your quantum electrodynamics on the ass. what do you do?
>>7763368
Say : "Surely You're Joking, Mr. Feynman!"
>>7763368
Learn.
>>7763368
Ask for more ^^
>women cant into science because their dumb
>>7763259
I corrected your post:
Women are incompetent without men.
Thanks! Have a nice day!
>>7763259
biology
>>7763259
>PISA SCIENCE SCORES
>LEARN BY HEART AND PUT IT AGAIN ON A PAPER SHEET
>CONGRATS YOU HAVE ABILITIES
once they arrive past the first courses, women can't think for themselves. Sure they can learn and regurgitate, but they can't create.
Lets say that we are living in a simulated reality.
Could are programmers program reality glitches such as the proposed mandala effect?
>>7763112
"The Mandala Effect" is just group ignorance. People are stupid, reality isn't glitched.
>>7763112
>mandala effect
https://en.wikipedia.org/wiki/Confabulation
>>7763112
Each person has a subjective experience of reality simulated by their brain. This is a biological electrochemical interplay of neurons. Yes you live in a simulation. No it isn't a big computer simulation ruling your life. This very post is just my subjective ego utilizing metaphorical symbology called english through electrical devices called computers. Eventually you and I will talk more directly. the speed of communication increases while the distance matters less. That errors called the Mandela effect are just...
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How would you explain someone who has never once taken a STEM class on weight gain, type of food, and what actually makes a person fat?
>>7763042
When you are eating then youre eating something called calories.
When youre moving youre burning these calories.
When you burn more calories than you eat you lose weight, when you burn less you gain weight.
>>7763050
>what actually makes a person fat?
>type of food
>>7763054
http://nutritioncenter.epfl.ch/
created recently
hopefully they produce results soon
Is this true?
Yes
Since beginning anti-depressant medication I have gotten worse at chess and IQ tests
dont know
I'm anxious AND stupid
>>7763039
I feel like they have the cause/effect backwards.
There are smart people in the UK, Europe, etc who get top grades in their finals and yet decide to pursue Physics, Math, etc instead of Medicine, Law, etc for their undergraduate degrees. Some aspire to do research in the future.
Yes, I understand that being a doctor or lawyer is stressful, but why don't these smart people go for "easy" jobs instead? Being a physiotherapist, nutritionist or actuary is not that stressful. Working for the government is nice as it's difficult to be fired from your job. This is certainly the case compared to something such as a researcher where no results = no funding = no income.
Really, all jobs are boring in their own ways. Even if they are interesting at the start, they become dull over time. Why not just pick something which leads to a stable income and learn to love that job?
>>7763029
>I poasted it again, guize
>>7763032
This one is different from the one last time.
Simply put, because they love to learn and discover, and it's thrilling to go into uncharted territory.
And we should all be happy that they want to do this. It's because of the curious minds like those that we get new technologies, algorithms, maths, which shapes the modern world.
>people frequently get diseases from animals
>animals rarely if ever get diseases from us
what is this shit
le shitposting vegan face
>>7763011
are you giving every animal an autopsy to know this?
didn't think so
now delete your worthless thread
>>7763011
Animals rarely consume humans. Humans rarely bite animals and run away. Ontop of that we dont really document where animals get their diseases
Guys I'm confused with this, different answers all over the place. The 'correct' answer does not make much sense either.
>A speeding truck locks it brakes and it skids to a stop. If the truck's total mass were doubled,what would happen to its skidding distance? Why?
If you work it out mathematically it would be 1/2 the original stopping distance.
But the 'official answer' is they are the same? Are they just accounting for the brakes? Don't brakes rely on friction, The answer should be 1/2 of the...
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>>7762981
apply newtons second law. that should be all you need to figure it out from here.
>>7762981
the distance would double (roughly) because the more mass means more inertia.
Using basic mechanics you can get mass to divide out on both sides of the equation. This means that the mass doesn't matter, so the time will be the same.
Basically
Ffriction = Fnormal * mu
Fnormal = weight
substitute known quantities
prophet
