Ed Witten has the strongest phenot-
His head is a fucking egg
>>9108105
yeah, but he's a billionaire so who gives a fuck what you look like
>>9108108
I don't think his ring of child sex slaves love him that much.
Why can't you make a space elevator with rocket engines interspersed vertically, holding it up, and fuel pumped up constantly though tubes?
>>9107866
Better yet, why not put the rocket engines on platforms that carry the vehicle into space, like a real elevator. Better yet, why not just put the rocket engines on the vehicle? Boom, practical space elevator.
>>9107871
thanks retard you are the kind of retarded ugly nerd that makes sci so terrible
for the lower altitude engines, electricity could be used to power fans
the problem with not just making an elevator very long now is: even though centrifugal force can keep a station up, there is nothing strong enough to hold itself together up to such vast heights?
would the price of fueling such an elevator render flights to geosynchronous orbit unpractical? because with my design the height is unlimited...
there probably isnt nearly enough demand to warrant a project like this, but if one was trying to construct, say, an interstellar ship...
>>9107871
actually, why not just use high pressure air pumped from the ground to keep it up? no need for rockets at all
How the FUCK do I solve this type of problem?
I tried the law of sines, the law of cosines, literally everything but my answers are NOT what the book has
the book has
magnitude = 39.20N
angle = approximately 21.46o
BUT I HAVE NO FUCKING IDEA HOW THEY DERIVED THOSE ANSWERS. The examples in the book don't explain this type of problem at all
Am i missing something? What is going on?
>>9107865
do you even trigonometry?
We are not here to do your homework.
hint: you do have enough information
>>9107868
yes I trigonometry
by this logic i do this (pic related)
angle b should be approximately 63.66
so if i do simple triangle math
180o - 35o - 63.66 = 81.34o for the top left angle
therefore, I SHOULD be able to use fucking Law of Cosines to find the answer, BUT MY ANSWER ISNT WHAT THE BOOK FUCKING HAS?!
c^2=25^2+16^2-2(25)(16)(cos(81.34))
c^2=760.54
c=27.57
BUT AS YOU SEE, THATS NOT WHAT THE BOOK HAS
the book has 39N, whereas my calculation is 27
what the FUCK
>>9107865
The book answer is wrong
>tfw black but have the PHENOTYPE
Is race really what determines IQ? I was 99 percentile for United States in math and reading growing up, had 140 IQ, most of my family is pretty smart and we're all darkskin savages so I never really bought it.
And no, this isn't just me trying to brag, I want /sci/ to very honestly discuss race and genetics.
Determines != Predicts
You can generate probabilities based off of distributions but that is it
You're a tail ender for any race
pics of your forehead please.
>>9107839
nigga fuck you.
>Without loss of generality
shit thread
excellent thread
mediocre thread
How do you interpret probability?
I see the probability of an event occurring as being the maximum amount of money I would bet on it in order to win $1.
What's your interpretation?
Amount of ways an event can occur / Amount of possible events
The theoretical frequency of outcomes that will satisfy the considered event when the experiment is repeated infinitely many times (as a Cesaro mean).
>>9107729
Hello there, 11th grader!
>>9107729
What's the probability of hitting the exact center of a dartboard with a 1-dimensional dart in continuous 3-d space?
>P vs NP solved
Welp, there goes my career.
Not to worry, you would have never amounted to anything anyway.
>>9107709
Hey, fuck you.
>implying you ever stood a chance
What made you realise you were smarter than the average person? For me it was when I realised that unpredictable ≠ random.
when i got into mensa
What do you even mean. In statistis, random variable is a variable someone cannot predict.
What does random mean if not unpredictable?
Does /sci/ calculate the delta-V of thier rockets by hand or do they get a mod to do it?
>>9107506
>Getting a mod to do it
>Being that much of a brainlet
>>9107506
Videogame threads don't belong in /sci/. Take them to /v/ or /vg/ instead.
>>9107549
EE graduates
What program did you use to simulate electromagnetic force between two permanent magnets.
Is there anything that can simulate them moving past each other and showing the result in how much force they emit on each other?
I suggest using COMSOL multiphysics if you have acces to it. It has a moving mesh option allowing for objects to move. Requires some time to figure out how to do it out though.
>>9107476
>COMSOL multiphysics
sounds like exactly what I need, thanks anon
>>9107443
Just model the system in matlab/mathmatica/python/r and graph the output.
If you can't write it yourself then I have bad news for you. ..
You don't.
http://arxiv.org/
Preferably posters who know what they're talking about
The popsci hype around general relativity is the geometrization and physical curving of space-time changing otherwise straight paths into curved ones. However, after actually reading an introductory text on the subject and going through the field equations, this intepretation seems unnecessary and extraneous. And Einstein agreed
The notion that the gravitational field can be reduced to curvature just doesn't seem any more valid than attributing electromagnetic or fluid flow fields to curvature. The field has an effect on the results of local measurements, and the equations describe that. Fuck this rubbery sheet bullshit. Any thoughts?
Heard this long time ago, but really how? We already have deformation of space-time in special relativity and there's no way around that.
>>9107242
So far as I can tell, it was Weyl and not Einstein who pushed this interpretation.
"But one must not legalize the mentioned sin so far as to imagine that intervals are physical entities of a special type, essentially different from other physical variables (“reducing physics to geometry”, etc.)."
It just looks like a crutch that intuitively separates the form of gravitation from any other field theory.
>>9107248
Relativity is based on measurements of time and distance. Local measurements are affected by the finite and (locally) constant speed of light. This is mathematically modeled on a psuedoreimannian manifold, but it's lazy to interpret that as space itself being a psuedoreimannian manifold. Physical momentum is not literally a differential operator.
There is no reason to say space is anything more than the aggregate of our possible measurements/coordinate systems, because there is no other physical measurement that can define space. At least that's how my book puts it
ITT: You rage, you lose
>geniuses only
0% of people can solve this because there is not enough information to solve a 3 variable system with a single equation. I'm sure there is a meme answer though.
>>9107230
Brainlet detected.
https://mathoverflow.net/questions/227713/estimating-the-size-of-solutions-of-a-diophantine-equation/227722
Do you ever daydream /sci/?
I occasionally do and it always gets me thinking about life, the randomness in the universe and our place in it, I stare at buildings, streets and imagine it how everything looked like in the past.
This usually just takes like five seconds and afterwards I just keep on with business.
What do you think about?
dumb things I did or said in the past and cringe or twitch my face in shame.
No never, don't have a mind's eye so can't daydream either.
I dunno if I can explain this well, but I like to mentally grow things outward. Like, looking at a tree and imagining it with more branches and flowers. Or looking at a skyscraper and growing it several levels and adding all the support structures needed and stuff
Is meditation a meme?
>do you meditate?
>how long have you done it for?
>any benefits?
i tried once and it felt very weird but relaxing, i haven't done it since though
Meditation has at least one proven benefit:
http://www.tandfonline.com/doi/abs/10.1080/13674679908406332
http://www.sciencedirect.com/science/article/pii/S1053810010000681
What is your excuse for not maintaining your 130+ IQ IxTJ brain?
>>9107210
I reach 10th jhana when I need to talk with greys.
Serious.