Archived threads in /sci/ - Science & Math - 106. page
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Okay /sci/ If I have 2 buckets filled with a liquid that is 100 degrees hot and then I mix the liquids together will it become 100 degrees hotter or stay the same?
>>8114148
Stays the same
You'll just have double the volume
>>8114162
May I ask why?
>>8114164
>May I ask why?
temperature is a measure of energy DENSITY
how else did you think it would work?
I'm taking differential equations next semester and I started to watch lectures on it so I can prepare myself. The problem is that I have no source of practice problems and I'm not really learning as much as I'd like. I went to my local library and they had a pitiful selection of math books and there was nothing about differential equations there.
Does anyone know some good places to find diff eq practice problems?
>>8114132
try http://ocw.mit.edu/courses/mathematics/18-03sc-differential-equations-fall-2011/
introductory ODEs is a bullshit class by the way, only thing worth learning is the laplace transform
>>8114132
If you want help with your homework, go to /wsr/ - Worksafe Requests
If you guys spent as much time trying to take over /wsr/ as you do here, you might be happy.
Has technology conclusively proved that their is no significant hollow in the earths' center. Please any thought's on the matter would help.
>>8114111
As far as I can tell, there's a 50/50 chance. So who knows.
>Does this thing I've taken out of context prove X?
We don't know what it shows without the fucking caption.
Maybe you shouldn't post a figure without the paper.
>>8114111
Illuminati confirmed
Is "machine learning" a real field or just computer science people discovering applied mathematics? I studied some basics, and most of it boiled down to statistics, algorithms, some basic numerical methods, optimization, and a few little cool things people discovered 60+ years ago. A guy at my university publishes stuff that boils down to combining artificial neural networks (70+ years old) and wavelet transforms (30+ years old). Can anyone tell me what is the fuss about?
It's basically statistics and optimization.There is almost no computer science involved except notions of computational cost.
The fuss is about discovering what works best for your application. There are no recipes. So if you want to apply it one day, you need to take educated guesses and experiment. You just need to know how and what educated guesses you might take.
If you start doing k-means on a swiss roll, you're a moron.
>>8114040
I wonder why we don't have people do this stuff in applied statistics departments instead. A lot of people I've seen trying to work in this field seem to be lacking a very solid foundation of statistics.
>>8114050
where I am, it's distributed mostly between computer vision labs, robotics labs, mathematics and CS-related labs.
I agree that reading papers can be a bit unsettling if you lack in statistics. I thought I was ok but when I had to read a few papers I realized I was lacking as well.
Is this a good textbook to use as an intro to physics?
>>8113955
>Vol1 (March 25, 2014)
>Vol2 (July 19, 2016)
I doubt there are many schools that adopted it before the full sequence was released. Even the Yale course it's based off of uses another book.
>>8113975
r u telling me it's shite?
bamp
Can I be too old for grad school? I'll be 28 this month. I'm a chemist and thinking of applying for my Ph.D. I worked for industry as an analyst out of school.
Would I be too old to still be a grad student and do all the chores as an RA/TA or whatever?
>>8113913
No. Now imagine you manage to hit 100. Imagine life expectancy can be increased within your lifetime by a few decades.What else are you going to do with your life?
Sounds like a great question to ask your school. Who's your PhD supervisor going to be?
>>8113927
Idk. I literally just thought of going back today.
Why didn't the harpoons fire?
>>8113839
I blame the Jews.
it was launched assuming the dirty snowball theory was correct
>>8113839
no landwhales on a comet
I fucking hate chemistry. Why do people go into this field? I enjoyed both my college physics courses, but chemistry is driving me up the wall. What kind of autistic, bug-collecting pokemon fanatic has the time or disposition to memorize the periodic table? These naming conventions are a total mess. And then there's the nonstop mindless number crunching. Explain yourselves, chemfags.
>>8113666
>memorizing the periodic table
>mindless number crunching
Because chemistry beyond gen chem is fun?
>naming conventions are a total mess
yes.
>>8113666
Eh. You have math at the purest level. Then there's physics. Chemistry is just very, very applied physics, as such. Of course, that means that we have to obey the preceding paradigms (phys and maths) on top of ours.
I'm an industrial chemist by profession. Trust me, many of us aren't exactly sure of what we're doing or why it works.
I ended up making rubber with a seal manufacturer. It involves all and none of my chemistry at once, in that, no one gives two shits about the theory (because...
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>>8113700
>accepting certain conclusions
So what did you not understand? I am a chemistry major and not once did I just accept something. That would be stupid af
assuming that one could get a space shuttle sized object to warp speeds could it be used as a weapon to completely fuck up an entire star?
>>8113471
or would the warp field do other shit with the solid matter?
assuming that 1 = 2, then would it be possible that mathematics is all wrong?
Why are freshman physics textbooks 1000+ pages long?
Why are these niggers so verbose?
I don't get it, you spend more time reading through the bullshit then actually getting to the topic.
>>8113355
f you want advice regarding college/university or your career path, go to /adv/ - Advice.
>>8113355
Because many students need the hand holding not to fail since it's their first real problem solving class. You can always read Kleppner & Kolenkow or Purcell & Morin if you want something to the point and more intense.
Because they usually have a lot of questions/exercises.
>supervisor passes me a paper to look at
>it's by a frequent collaborator of Terry's
>one in a series of papers done by the two
>citations are almost all papers in which they've coauthored
>supervisor wants me to read and digest all the papers by the end of the week
>he wants to start looking at potential adjustments or optimizations with their work
Just senpai...
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name of paper?
>>8113311
here's one of them, you can probably find the rest through references and authors
https://arxiv.org/abs/math/0502327
>>8113308
Sounds Terry-ible
Why do we respond to music and what's its purpose?
>2GOMAD
has fitness gone too far ?
>>8113274
stay on topic plz
with that much milk he won't even need a bulletproof vest
Whats your favorite "Sums up scientific theories into humerous, easy to understand explanations" youtube channel.
>>8113239
>PBS Spacetime
>The people who literally have a video that might aswell be called 'Why women are superior to men. Now can someone please take my virginity?'
More like PBS Cucktime.
>>8113252
>being butthurt about the fact that women eat less than men
You're not the kind of thing that media is aimed at. Now go back to your hyena pack.
useful shit
lmao
https://www.youtube.com/watch?v=wfYbgdo8e-8
>>8113086
does this meen god is real? xddddd
This video is literally the scariest thing I can think of.
>>8113094
3 persons in 1 god ? :oo
