If a 3 dimensional object (such as a human being) can onlymove gradually forward through time could that object transform into a 4 or 5 dimensional one and move to any point in time in any direction?
>Back when we were stupid cavemen, we needed X instinct to help us survive in the scary (((Outside World))). But in the modern world we don't need X instinct anymore and it actually hurts us!!!
Anyone else getting tired of hearing this meme? I know it's essentially true, but it's ALWAYS spouted by pop-sci pseudo-intellectuals who don't know what they're talking about, often to make an smart-sounding argument for some backwards-ass retarded productivity hack.
why do you listen to pop-sci pseuds? it's more than essentially true, even things like natural selection used to be far more necessary to eventually give cavemen the upper hand on every other animal, now we don't need it because of the sheer global dominance of man and modern medicine
>>9070661
Try not to think about it too much.
>>9070854
what did you mean by this?
Ok /sci/entists, I've got a question. What would be the easiest way to run electricity from a lightning bolt through something else attached to the rod before being grounded.
>>Pic unrelated
>>9070642
Bump
If you were to inhale small amounts of carbon dioxide, would you get a high similar to nitrous oxide or would have no effect.
>>9070578
>high similar to nitrous oxide
no
>If you were to inhale small amounts of carbon dioxide, would you get a high
https://en.wikipedia.org/wiki/Hypoventilation
>>9070597
/thread
There's a reason why we have a SQT, for questions like this that don't deserve their own thread.
>>9070597
>>high similar to nitrous oxide
>no
SHHH!!
If we convince congress you can get high off C02 they might ban it! It's the best hope to stop global warming yet!
The city under the sea
Not too much, but there is a case to be made for global floods of the supposedly neolithic era/Ice Age.
-> http://iafi.org/ice-age-flood-simulation-video/
->https://www.youtube.com/watch?v=VA3j5_vKQfc
From the information presented in the CC video at ~1:00 is the single best piece of evidence in favour of Atlantis:
A). The Nile river flooded predictably
B). Myths tend to be based on local events
C). Therefore Egyptian myths should portray flooding as beneficial and non-cataclysmic
However, it is FROM Egypt that the myth of Atlantis comes from - indicating that the Nile couldn't have been the cause of such a myth, but rather an exceptionally cataclysmic flood.
In spite of this, I would still hold that Atlantis is probably not located in the Atlantic Ocean. At the very least, there should be SOME cities under the ocean - if not a substantial number.
>Wait 30 years
>All of Tampa Florida is now Atlantis
Pretty good evidence of the existence of civilizations predating Plato which could be his inspiration for Atlantis but none from 12,000 BC. Also pretty good evidence for the existence of prehistorical peoples that were destroyed or at least forced to relocate because of natural disasters and flooding but none that could be rivals to Greece, most prehistoric peoples didn't even build cities. None of these existed beyond the pillars of Hercules anyway.
Pretty good evidence for civilizations that existed beyond the pillars of Hercules but they weren't in contact with Greece, weren't civilizations that could be rivals to Greece anyway, weren't large enough to fit the description of Atlantis, and weren't prehistoric
So pick your poison I guess.
So I've been thinking...is it possible to calculate the lifespan or posting rate of a meme? Some of them appear to be very parabolic or polynomial. Where would we start /sci/?
From your picture, we can surmise the following:
> memes that have a slow rise to the top have a slow fall to irrelevance, ie
>the rate at which a meme falls from peak notoriety is similar to the rate at which it rises to it
If random resurgences are not taken into account, then the meme posting rates (memeposts per day) of those in the picture you posted may be calculated by something like
p(t) = sqrt(t)/p(t-1)
Where p(t) means number of posts as a function of time in days.
I'm an engineering freshman brainlet though, so please run this through again.
Interesting
To see those different rises and falls
But I don't believe in predicting
>>9070506
Only if you could predict people. You'd have to be able to predict whether certain famous individuals on Twitter or somethkng will start in on it and bring it back up to speed.
Is cold fusion real yet?
We're pretty far from it, last I checked.
>>9070501
>yet
What is it, /sci/?
https://en.wikipedia.org/wiki/Oh-My-God_particle
>>9070431
some cosmic particle accelerator like a supermassive blackhole accretion disk is spitting some nutso particles out
I heard on leddit that all humans are genetically closer to each other than two different subspecies of chimpanzee (Nigerian and central chimpanzee). Is this actually real?
>genetical distance
Meaningless buzzword. Also, you have to go back.
>>9070396
I was quoting.
I mean does the whole of humanity have more similar alleles than two different subspecies of chimp?
>>9070417
yes because humans dont have subspecies
> shits on CS majors
> can't even show that the intersection of two hypersimple sets is hypersimple
A is hyper-simple iff it is recursively enumerable, its complement is infinite, and there is no computable function f such that for all n, f(n) is greater than the nth element of the complement of A, i.e., the complement is hyper-immune.
>>9070350
>that SJW hair
but why?
I'd bet a fortune that more math majors could prove this than CS majors
>implying CS undergrads are taught recursion theory
>>9070350
Ahem, {{}}
I don't know anything about Medicine or Technology. What would it take to produce a bionic arm like this one? How far off until humanity is capable of producing something like this?
First, for there to be any advantage we would need some way of articulating the arm that was as fast as normal arm movement and stronger than a normal arm without being too bulky. Currently we don't have anything even close to as good as muscle. Hydraulics are slow and bulky and electronic solutions would be too weak.
So pretty much what we need:
1: Something better than muscles to act as muscles
2: A lightweight, flexible material to make the arm out of
3: A power source to fuel off of this that isn't too cumbersome. I don't think you'll want to carry a backpack with 10 car batteries to run this thing.
On the bright side, research into controlling artificial limbs with brain signals is pretty far along, so that part will be relatively easy to get going.
>>9070343
first initial obstacle i thought of was the difficulty in getting the brain to control it, pretty cool how far along people have come in that field desu
thanks for the answer anon :)
>>9070333
our linear actuators are hot fucking garbage. nothing we have does muscle better than muscle. thats the first step towards synthetic appendages that are truly analogous. efficiency is a big thing too because human beings are crazy energy efficient when it comes to moving around. that efficiency also ties into the power supply dilemma. our batterys are also hot fucking garbage right now.
like >>9070343 said, the man-machine interface technology is the most headway we have made.
imo, we're looking at at least another 50-100 years before you see tech like that.
What ways of learning would you recommend to a person who has been learning mathematics in their native language for a shitload of time and just recently switched to English? I'm struggling to pick up the ideas and get used to the concepts, most of the time I'm even unable to solve problems/make the sense of things I would make sense of very easily.
Help me, /sci/
>>9070234
English has a remarkable capacity to allow autistic specificity in terminology, an autism matched only by Russian and German
I don't know, maybe a dictionary?
>>9070234
>tfw you're Greek and most of the words in math are Greek
Does the activation energy necessary for creation of transition state in simple substitution reaction (let's say Sn2), correspond to energy difference between carbon-halogen bonding-antibonding molecular orbital?
And if so, why does transition state need to exist between carbocation intermediate and final product in Sn1?
>>9070201
I dont know the first answer without doing more research/looking at notes, but the second is because the carbocation is stable enough on it's own. a transition state is not stable at all, and is only seen extremely briefly, while the carbocation is stable (relative). But because it's a carbocation, it's extremely reactive and will immediately react.
for the first question, i would guess yes.
>>9070228
Well, thanks for trying anyway
>Pythagorean School
"He adapted a cave where he studied and lived day and night, discoursing with a few of his associates"
"There were ascetic practices"
"The members of the sect showed a devoted attachment to each other, to the exclusion of those who did not belong to their ranks."
"The rigorism of the ritual and ethical observances demanded of the members is unparalleled in early Greece"
>>9070173
They also were a religious sect, who killed a guy (Hippasus of Metapontum) who proved the nonnegative square root of 2 to be irrational basically shattering their established holy dogma, as per Pappus.
>>9070594
>who killed a guy (Hippasus of Metapontum) who proved the nonnegative square root of 2 to be irrational basically shattering their established holy dogma, as per Pappus.
literally a myth, probably debunked on snopes
>>9070600
>myth
There was a guy apparently named Pappus who wrote of the murder of a Pythagorean who proved sqrt2 was irrational. You can't disprove this, even if you go on David Mikkelson's fraudulent truth arbitrating scam Snopes
This year i m going to study a degree in physics, i h read a lot of physics books but never heard about some maths good book, i talking some books that introduce you in this world explaning the math language
¿Que libro es el que esta debajo de los demas? El que pone Unidad 9, Ondas electromagnéticas.
>>9070144