Archived threads in /sci/ - Science & Math - 320. page
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Anyone here really like bar graphs?
In any format I find them to be aesthetically pleasing. Never have I looked at a bar graph and felt uncomfortable. They add to any blank slate
Do you think the first mass produced prosthetic limb will be a mechanical or 3d printed living tissue based?
and how much time till then?
basically doctors vs engineers
mechanical.
you can actually mass produce them at a huge scale to make them cheap. since they can sit on a self for, basically forever.
Could there be forms of life that span the multiverse? They could have evolved by some form of natural selection operating across the multiverse over countless googolplexes of years.
>multiverse
>>>>/trash/
>>7930749
Yes, it's called Yog-Sothoth.
>>7930749
All forms of life in the universe probably have gradual explicable beginnings as microbes/bacteria
You cant suddenly break all the rules of biology and have a an organism evolve to transcend universes
This billboard just appeared in NE San Antonio. Anyone got any ideas as to what it means?
It means cube up
>>7930520
Where exactly is it? I live in SA and want to see this.
About a week or 2 ago I started getting these dark spots on my body. They are a little bumpy and idk what they are
They aren't bites
One on my chest
They look red because of the lighting but they are a dark brown color
skin cancer
Clearer
If we ever build a machine that can, on it's own, search for new questions in mathematics, deduce new conjectures, and be able to prove them, then we can be sure that Norwig was wrong, and that we are doomed.
Until that point AGI is a meme.
Do you agree with me? Arguments for/against such machine. Discuss.
>>7930478
>Do you agree with me?
Agreed. It is impossible to replace man.
>>7930478
No? Math is meaningless drivel that doesn't ensure any kind of survival fitness.
Fucking autists I swear to god.
If a computer can expound upon data sets we'd have to have a definitive, programmable, implementable and encompassing understanding of number theory.
Meanwhile learning for the knowledge-based systems exam...
>>7929873
can you TU it?
>>7929873
>[math] \mathcal{TRIVIAL} [/math]
>[math] \mathcal{R} [/math]
>[math] \mathcal{I} [/math]
>[math] \mathcal{V} [/math]
>[math] \mathcal{I} [/math]
>[math] \mathcal{A} [/math]
>[math] \mathcal{L} [/math]
>>7929873
Hard shit man..
Has anyone here ever U-turned in their scientific beliefs? I have twice. I saw a couple hobbyists in the media trying to fly on their drones flying carpet style claiming "flying cars were near" and I laughed at them for wasting their time on a dead-end because I believed batteries weren't good enough and this seemed to be verified because they only ever hovered for a few seconds. But then I got curious, did the calculations and it's totally possible to fly on a car sized drone for around half an hour if it's designed right. Now I invest money in my own...
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>>7929858
Yes, I used to be very pro-GMO crops, thought they had solved the food crisis etc and now I think they're mostly just marginally more convenient for global agriculture corporations and introduce systemic risk unless variety is carefully enforced.
>>7929858
>But then I got curious, did the calculations and it's totally possible to fly on a car sized drone for around half an hour if it's designed right.
Can you elaborate on this, or give me a link to read more about it?
>>7929858
>But then I got curious, did the calculations and it's totally possible to fly on a car sized drone for around half an hour if it's designed right.
>Now I invest money in my own personal-aerial-vehicle projects.
I hope for you that they invest it to buy some officials, because nobody with a brain will permit flying cars.
How to calculate the volume traced by a circle of radius r that rotates x rad while simultaneously translating a distance d?
Pictured are five snapshots of a rotation by pi rad along a distance d, with the path of a single boundary point marked by a dot.
Here's a relevant thread about a 2D equivalent: https://warosu.org/sci/thread/S7337389#p7338480
Each line segment can be thought of as half a circle in side profile.
>>7929567
>Pictured are five snapshots of a rotation by pi rad along a distance d, with the path of a single boundary point marked by a dot.
Mistake: it's pictured here.
Let v=v(t) be the velocity vector and x=x(t) be the unit normal vector from the plane of the circle with radius r.
If v and x have an angle O between them the "circle" (I think you mean disk) will drag out a volume at a rate V'= ||v||*πr*|cos(O)|=π|x•v|
Where • is the dot-product.
Thus V=π*int[ |x(t)•v(t)| ,t,0,T]
If you are restricting to movement along one direction, and rotation about a diameter, then my formula reduces from the dot-product to ordinary multiplication.
>>7929793
Whoops,I lost an "r" along the way. Just multiply the formula by r and it will be correct.
Why is this discovery so based? What does /sci/ think?
https://en.wikipedia.org/wiki/Meningeal_lymphatic_vessels
>>7929561
it's ok. what would be so special about it? just another lymph system
>>7929561
I have never understood what the lymphatic system actual does. Anyone cares to explain it in a fucking understandable manner?
>>7929730
so think blood vessels but for mucus
What is the definition of definition?
\thread
>>7929560
In mathematical logic, definability is undefinable.
It can be defined in the meta-language, but is undefinable within the language.
This can be shown by an analogue of the proof of Tarski's theorem on the undefinability of truth.
"Definability is undefinable" is a theorem.
>>7929587
Define meaning
#Charred
Where does the x^2 come from?
And where does the y go?
What is this guy doing
Nevermind
y = x^3
Am a fucking retart
Are you fucking retarded or just a "maths are hard!" boy?
>>7929522
I could kick your ass you fucking little kike. I bet you can't even squat a hundred kilo.
Are there any parent functions other than
f (x) =
0
e^x
Sin (x)
Cos (x)
That through deriving enough, you get back to the original function?
Yes.
A linear combination of the functions you mentioned.
Also cosh and sinh (derivate twice to get back to the same).
Also, think about polynomials. You can set up a function for any n, such that when you differentiate a + bx^n + cx^(2n) + ..., n times, you get back the same function.
Whether or not the gained function is a linear combination of e^x, sinx, cosx, sinhx or coshx, is left as an exercise to the reader..
>>7928915
Interesting! Looking at the hyperbolic trig functions, they seem to be linear combinations of e^x.
>>7928937
as are cos x and sin x
Lets say that you fully understand the Maxwell laws, what can you do with them?
Nothing. Understanding pure Maxwell is easy, but actually solving reallife problems (antenna design, TL/optical fibre design, radio communication) takes substantial efford. You end up with lots of numerical approximations and dicking around on CAD software.
>>7928739
I can show off my knowledge to your mom which will persuade her to suck my dick and to open her legs all night for me.
>>7928934
>double slit experiment
Is it possible to live (what you would describe as) a satisfied/worthwhile life without satisfying non-physically necessary evolutionary desires (so, not the desire to eat and breathe).
I have always felt the need for my father's love, approval/respect of other humans and a special someone's love (I'm guessing those are really the core of evolutionary desires?).
For reasons too detailed to explain, I will now be unable to have any of the above.
Do humans manage to live ok lives in solitude, provided that's something they have to deal...
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>>7928511
They said that book was good, I read it, I understood nothing.
>>7928511
>LOOK GUYZ I POSTED IT AGAIN
>>7928511
>non-physically necessary evolutionary desires
You can usually find the things you need elsewhere from where you usually get them or feel that you should get them from
