Relativity states that Alice sees "time slow down" for Bob when he whizzes by in his almost-light-speed rocket.
But through what dimension/parameter/variable does time slow down, if not time itself? My car slows down through time, no problem. But can time slow down... through time? Through a second time that time changes within?
alice took a boatload of acid, i wouldn't think too hard about what she says she saw
>>9148108
This isn't an /x/ thread, friend.
What is the scientific/evolutionary reason why people, both male and female, enjoy getting dick in their ass?
It sure doesn't help our species to reproduce. Quite on the contrary, precious semen just goes to waste in such activity.
First of all, humans don't depend on individuals producing tons of offspring. Our evolution takes place at the societal level now, we're not rabbits. But that's probably not why. It's probably just because of the proximity between the ass and genitals where there are lots of nerve endings.
>>9147918
>It sure doesn't help our species to reproduce
not every feature that a species evolves has to be for the sole purpose of boosting reproductive fitness.
and no scientist ever said anything of the sort.
so why are you implying that it has to be the case?
>>9147918
>god created us in his own image
>humans like dicks up the ass
what does this mean?
Your brain is more powerful than any computer on Earth yet you still have a relatively low IQ. Come on are you even trying?
>>9147590
>yet you still have a relatively low IQ
Speak for yourself.
>>9147599
Can you instantly solve complex math problems that are typically left for computers? That is what I meant by relatively. The processing power of the brain vs what people demonstrate it can do is pretty sad. You can say it is because we did not evolve to do it but technically we should be able to anything a computer can do, only better.
>>9147590
Your delivery was offensive and it hurt my feelings. Try again
Guys, I am a brainlet.
If you put $1000 in to a bank account at the start of each year and you get 5 % interest at the end of each year, how much do you have after 25 years? I know how to do this with a calculator or with a loop on a computer but I can't figure out how to do it with the formula for geometric or arithmetico-geoetric series.
You mean this?:
[math]
1000 \cdot 1.05^{25} + 1000\cdot 1.05^{24} + ... + 1000 \cdot 1.05 \\
= 1000 \cdot \sum_{k=1}^{25}1.05^k \\
= 1000 \cdot \left(\frac{1.05^{26}-1}{1.05-1} - 1 \right)
[/math]
>>9147858
Sum from k=1 to k=25 of q^k is (q^26-q)/(q-1), not (q^26-1)/(q-1)
>>9147865
nvm I was trolling
This is not homework, trying to learn a subject before I enroll.
How would you go about solving this?
Thanks in advance.
>>9147578
It's not a puzzle, just expand the equation.
>>9147598
I'm a mathlet, I don't exactly know what N(s) and D(s) are...
I assume T(s) represents the transfer function (expected H(s)).
Any hints?
I should be able to take it from there.
>>9147612
look up laplace transform
Hello /sci/
I'm a new master's student in computer science, it's only been a month since I joined the program. My initial idea of research was on approximative algorithms and metaheuristics, and got an advisor assigned to me that specializes in that subject, as usual.
The thing is: I read some of the material he pointed out as being basic to the matter of metaheuristics and I'm surprised how statistics-based it is. Being a guy who has also studied mathematics as an undergrad I can surely say I can't stand the field of statistics, it feels really boring to me, specially because I'm more attracted to the whole "proving theorems" kind of theory, as in graph theory, for example. Now I'm having second thoughts if it really is what I want to research in the next couple years. Is approximative algorithms also heavily leaning on statistics? If it is, how should I approach my advisor to let him now that's not really what I would like to get into. Is a month in already too late to switch my research subject?
Enlighten me with your graduate knowledge, /sci/, please
>>9147464
It's too late for you now. You must deal with the ramifications of your actions.
>>9147471
Nigga, I'm not playing fucking Skyrim, we all know life isn't like that
>>9147464
>got an advisor assigned to me that specializes in that subject, as usual.
consider yourself damned lucky.
I'm a newfag to this board; what are your views on climate change?
To me, it's a natural occurrence and I do not believe humans have caused a significant impact to the environment to rival what astroids have done in the past.
Sure, air pollution and concrete jungles have increased local temperatures, but they are not creating deserts and we're definitely not creating another ice age... yet.
>>9147441
Can you be more specific? Can you cite some papers or scientific articles that compelled you to distrust the scientific consensus?
>>9147441
The worst part of the post is the phrase "to me", which connotes the creation of one's own truth. The point of science is that it demonstrates certain categories of observable and (nominally) objective Truth which exist independently of subjective experience, and which consequently and happily do not brook contest once perceived aright, viz:
"To me, 2+2 = 5."
>>9147441
>to me
Nice opinion, please show me your academic credentials as a scientist, unless you want me to print your post and wipe my ass with it.
is physicist an exciting profession full of adventures?
>>9147424
Ha, no. And you won't be one anyway.
>>9147428
what gives me away?
I don't know, do your Physics teachers look excited? Because that is your future.
What would happen if 1kg of light collided with 1kg of dark?
1kg of gray. Next question.
>>9147384
Wouldn't that be 2kg of gray
>>9147384
Really? I would have thought 2kg of gray. Physics is scary.
So, say I wanted to fully understand this book with no prior understanding of mathematics or logic, is there something absolutely important to know before starting to try and understand this? If so, what would it be your reccomended study material to come to understand it?
>tfw no one responds to my shit thread
JESUS if only there was a way people could review something after they purchased it so they could express disappointment or praise.
You could also just dive right in and find out, then if it's too complicated find a more basic book, and when you finish that read this one.
You could also preview it on google.
Hopefully learning about the logic of life will help you figure stuff out like this on your own.
https://www.goodreads.com/book/show/13748126-logic
https://www.amazon.com/Logic-Truth-Nicholas-J-J-Smith/dp/0691151636
>>9147341
Start studying. Stop talking about studying.
i thought math was supposed to be perfect
>>9147276
extraneous solution
>holy my precalc teacher showed me this and my mind is bloooooooooooooooooo-
stay in school, kids.
>>9147276
Woah dude rounding is crazy
What are irrational numbers.
What does it mean when the decimal part of a number goes on forever (repeating or not)?
Pic unrelated.
>>9147237
>What are irrational numbers.
real numbers that aren't rational
>What does it mean when the decimal part of a number goes on forever (repeating or not)?
what exactly do you mean? all numbers can be written this way
Irrational numbers are numbers that can't be formed as a ratio of whole numbers. That's about the beginning and the end of it. Ancient Greeks formed a mathematics of geometry and ratios (not yet working with purely abstract numbers, i.e. they'd never just say "3", they'd say "a length three times of another length"). They quickly discovered that lengths existed that can't be interpreted as a ratio of another length. In particular a right triangle of two equal lengths will have a third side who cannot be interpreted as a ratio of any equal subdivision of the two equal-length sides. In other words sqrt(2) is irrational.
>>9147237
>What are irrational numbers.
Most likely, female.
Can one of you guys start a youtube channel about complex mathematical theories?
Even if your ideas are baseless, even if they are foggy. I love hearing about math.
Are there any good channels with depth? not just surface level stuff? in depth theories about topology and chaos theory
Harvard Math
https://www.youtube.com/channel/UCZgHOeJBfMKOZ5PMlZysy8Q
Institute for Advanced Study
https://www.youtube.com/user/videosfromIAS
Taylor Dupuy
https://www.youtube.com/channel/UCHWnZ1NtJ4WvE5AHmNVXziw
>Number Theory, Algebraic Geometry and Model Theory
>>9147173
The problem is we all haven't got much time as it is and I personally don't find it that appealing to make a whole youtube channel for just select few individuals. I think there's alredy plenty of the necessary parts on the YT.
>>9147178
To add to that
Anyone who actually got through these advanced topics couldn't probably see themselves covering the topic without necessary rigour and that pretty much means creating a whole set of rigorous lectures. That's a lot of work
This American pastor brilliantly lectures Stephen Hawking on Physics and debunks his non sense pseudo science about black holes and quantum gravity.
https://www.youtube.com/watch?v=91t8agMVpKg
https://www.youtube.com/watch?v=aELte7hNEUs
How long until Hawking suicides?
but did gravity exist before the universe existed?
>>9147131
hawking is a fraud. i knew it by 14, because that was the time I read his overhyped books.
>>9147131
https://www.youtube.com/watch?v=r1lw5EkvRP4
Another video.
http://zeenews.india.com/science/how-neanderthals-made-the-worlds-first-glue-decoded-2039068.html
How intelligent do you think Neanderthals could have been? We really need to de-extinction them.