/sci/ - Science & Math

>first day of Calc 2
>professor walks in
>looks at all the students
>"Calc 1 is baby shit, If any of you thought Calc 1 was difficult then you are most likely going to fail. I will make you cry on your exams and give you horribly tough problems to make you use that brain of yours. If you don't think you can handle this then get up and walk out the door now."
>some people actually get up and walk out
>mfw the entire time

/sci/ I'm completely lost right now.

So I'm doing volumes by shells and I have:

y = x^2, x = y^2, about y = -1

so functions: y = x^2 and y = +-sqrt(x)

from x = 0 to x = 1


now my first thought is to do something like:
Integrate[ 2pi*x*(sqrt(x)-x^2), {x,0,1}]

But it's suppose to be about y = -1 and this is the confusing part for me. The about y = -1 just blows my mind apparently.


what do?

http://www.youtube.com/watch?v=rSrIkUXwsNk

how the fuck is this possible /sci/?

Fucking cuts off head and makes it run still alive by a machine fucking russians how.

>www.dailymail.co.uk/sciencetech/article-2071099/Is-alien-spacecraft-parked-Mercury.html

>It was uploaded by user siniXster and he says in his commentary: ‘It's cylindrical on either side and has a shape in the middle. It definitely looks like a ship to me, and very obviously, it's cloaked.’

Fucking aliens, so advance they build spaceships that are 2/3's the size of mercury and stay cloaked when not in the way of solar flares

>believing the op

/sci/ what's your reason for living in a supposed `First World'' country and yet you don't support/have a eugenics program.

>>1629805

FUCK