What bleeding edge science are you excited about or think is worth sharing?
Alchemy
>>8600340
Partial differential triple integral infinite dimensional quantum topological field theory
Gender studies
What are some /sci/ approved YouTube channels? Or just channels you enjoy watching.
>>8600298
pewdiepie
>>8600298
Susskind Lectures on Standford's Channel
https://www.youtube.com/user/StanfordUniversity/search?query=susskind
>>8600314
*Stanford
Do any of you (/sci/)NIGGERs collect rocks/crystals/chemicals/etc? Just got this little fucker for $38. Certified ~4 billion year old acasta gneiss from CANTada. Feels neat (or neet) to own part of the infant Earth. Show me your neat samples, if you have any.
>>8600278
Looks like a rather boring sample. I collect rocks but throw them back into nature after awhile. I am thinking of crystal hunting though because I heard that's where the big bucks are.
>>8600278
i will sell u rocks way cooler than that for less
>>8600278
JESUS CHRIST MARIE!
what is a group compared to a set? i get that a set is a collection of objects, be it numbers or functions, that have constraints on the domain or range, but what does a group add?
better yet, how does one extend from a set to a ring and field? from what i understand, rings allow you to add and subtract subsets, and fields allow you to multiply and divide? so i ask, where does a group sit in this framework?
Literally Google the definition of 'group', 'ring', and 'field', you poor, helpless retard
>>8600018
ok,A Set (mathematics) is essentially a collection of any sort of objects .These objects are called the elements or the members of the set . ... A Group (mathematics) is an algebraic structure and a set closed under certain specific operations .
but a field already fits under this criteria so how is a group any different? i bet you don't even know you brainlet.
Groups are algebraic structures on sets closed under one operation. Rings already have two operations. Fields are rings with some more stuff (a multiplicative identity, for instance).
Look up the axioms of each structures to see the difference. Groups are create tools to talk about symmetry, be it geometric or physical. Rings generalize properties of the integers to polynomials, matrices and other objects. Commutative rings in particular form the basis of a field of mathematics called (modern) algebraic geometry. Fields are useful in general, you can define vector spaces on them and do calculus, provide you add some more structure on them (something called a topology). Finite fields are used in encryption, too.
Tell me what you see here..
>>8599544
>alchemy is real.jpg
Fucking dropped
Th-thanks
Alright guys, I can't do no science, but I need some help. I bought this aquarium for my girlfriend because she really enjoys fishkeeping, and it works great and runs well etc.
The problem is that I guess the vibrations of the filter while running apparently carry down into the floor, and according to her dad, produce a "bloody annoying" humming noise throughout the night.
I went down into his room, and while I do think he's vastly exaggerating, there is indeed a /very/ faint hum. So I need to ask you guys, is there anything I can do to dampen or redirect this vibration?
I've attached an image of the tank with the dimensions of the tank and cabinet structure. The rules are 1) we cannot place anything between the cabinet and the tank, and 2) we cannot place anything beneath the cabinet and the floor unless it's literally the only way to fix it (since it would involve emptying and refilling the entire tank, which can be a dangerous process).
Also suggesting he wear earbuds or simply try to grow accustomed to it is apparently out of the question. As you can imagine, any help is greatly appreciated and thanks in advance.
>>8599473
buy a different pump
>>8599473
Suspend it with rubber bands.
>>8599473
>we cannot place anything between the cabinet and the tank
Say what? There should be polyethylene foam or something to spread evenly the weight of the aquarium. If there isn't - you're in for a suprise.
Has /sxi/ ever researched how to build a UFO?
There are plenty of schematics and info on building your own UFO online.
>>8599337
just get a drone dude
>>8599337
>ufo: unidentifiable flying object
>plenty of schematics to build unidentifiable flying objects online
Kek.
>>8599347
It is kinda weird, right
Is getting a degree in Geology worth it or is it a meme ?
>>8599216
Petroleum geologist is basically god-teir
>>8599227
>not doing petroleum geologist journalism
It's like you want to secure life as an indentured faggot
>>8599227
desu i was more interested in hydrogeology
everywhere i look though for geology and job outlooks it's either "yeah there are jobs" or "fuck no there are no jobs don't do this"
then again i hear that about almost everything
Feels really good man
c:
I couldn't have done it without the motivation I got from /sci/. I <3 all you guys.
doesnt oxford have an almost 20% acceptance rate?
>>8598923
This, Oxbridge actually comparatively easy to enter if you don't care about the college and expenses.
Not trying to undermine OP though.
There are still failures who only able to enter Edinburgh.
>>8598911
Congrats, OP.
Leave 4ch, buy Cal Newport books, work hard.
Spend your summer in CERN, DESY, and such.
>>8598923
>>8598945
>implying it's from Oxford University
That's an acceptance letter from Ruskin College in Oxford, England. I've got one myself if I can manage to find it.
Help me I'm so confused about consciousness and I want to answer this question so badly. I use frozen brains in this example so there is not a branching off of two different consciousnesses and no reason to say that they are different for that specific reason. Imagine you freeze your brain and have an identical brain next to you, then you switch the right halves with each other (or left, doesn't matter). You now both are still the same as before in one way but not in another. Which one are you? That is to say, if you had to pick one before you were frozen and that one would be thrown in the garbage, which one would you choose before the other is reanimated? Is it the same as asking: "if a clone of you appeared in the room right next to you and then was killed, would you know the difference"? I think about this too much lol but what do you guys think?
>>8598863
>"if a clone of you appeared in the room right next to you and then was killed, would you know the difference"?
(You) would be dead and your clone would go on masquerading as you, and no one would know. Fucking clones.
>>8598868
no im saying if the clone was killed
>>8598863
The likely answer is that, if you have two frozen copies of your brain, and you unfreeze then both, both will be "you", and you have made a copy of a person. This defies your intuition because we did not grow up in a world where this sort of thing happened, but it's probably how it would work nonetheless. (Remember, sometimes intuitions are just flat wrong, especially in situations where you violate a rule that held throughout all evolutionary history.)
>That is to say, if you had to pick one before you were frozen and that one would be thrown in the garbage, which one would you choose before the other is reanimated?
Either. It doesn't matter at all.
So I'm in my final year of a STEM PhD and I have nothing worthwhile to write about in my thesis nor have the motivation to continue further.
I've already "soft" dropped out by skipping university for a week by lying about an illness I don't have.
Should I just drop out completely or get down on my knees and beg my supervisor for a masters degree?
>>8598734
Discuss with your supervisor.
Btw don't make stories. Bullshiting on /sci/ is not healthy.
Yes. A similar thing happened in my graduate research group. The thing was, our PI/adviser was completely willing to knock them down to Master's Degree's because he was sick as fuck of trying to work with them
>>8598734
you could ask /r9k/ they should know
Hello /sci/, mathsphi anon here. I'm working on brownian motion, and stochastic integrals. I saw that [math] \int_0^t . dW_s [/math] is a L2 limit and other things like that. But I have difficulties with calculus. For instance, I can compute :
[math] \int_0^t f(s) dW_s = f(t)W_t - \int_0^t f(s)W_sds[/math] or the well-knowed :
[math] \int_0^t W_sdW_s = \frac12 ( W_t^2 - t)[/math]
But what if I want to compute :
[math]\int_0^t W_s^2 dW_s[/math] or [math]\int_0^t \exp(W_s) dW_s[/math] ?
Is there a way to compute it ? Must I write something like
[eqn] \sum_{i=0}^n \varphi(W_{ \frac{it}{n} })( W_{\frac{(i+1)t}{t}} - W_{ \frac{it}{n} })[/eqn] everytime I want to make an exercice ?
i have no idea what you are talking about but that looks like italy if you turn it sideways
>>8598776
Thanks for bump.
It's my Python simulation.
Pic related is more like Germany ?
>>8598661
matplotlib is cool
Why does prosperity make people kill themselves?
If you had a war torn, famine stricken country where every day 95% of the population lives in abject misery, suicide is virtually unheard of.
But the instant the HDI goes up and people start having even the most marginally comfortable lives, they start topping themselves left and right
It's so counter intuitive
>>8598429
Because if youre poor u dont tend to think of more abstract self worth and ambition and neither will the peope you know. When your richer yourr surrounded by competitipn, people being successful so you have to too. Requires more cognitive effort, attention, time. Some cant do it. You get expectations that life is meant to be good. Culture becomes increasingly individualistic. Mental health becomes more real.
>>8598429
If you are poor but everyone is poor around you then even though it is bad, it is okay. You have companionship even in your misery.
But if you are middle class or rich and out of nowhere you become ultra poor to the point where you lose your house, car and abbility to buy gifts or attend parties for other people then you will immediately be isolated and have no reason to live.
>>8598429
the cave.
can electricity be converted into momentum?
>>8597927
>what is a CRT
Yes, of course.
when, biologically speaking, does life begin if this is majorly controversial?
>>8597882
Define life
>>8597882
> arguing about definitions
> thinking that means anything
Generally arguments about definitions mean you are not thinking hard enough.
Q: At what point is a nascent human being worth protecting, and to what extent?
conception
/thread