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/sci/ Science & Math

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Most viewed threads in this category

12 more posts in this thread. [Missing image file: ]
Is it even possible to calculate the volume for this trapezoid? (Ignore the red drawings, that's just me trying to do some futile shit)
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Are you smarter than a Nip?

China to send EmDrive to space soon

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http://www.ibtimes.co.uk/emdrive-chinese-space-agency-put-controversial-tech-onto-satellites-soon-possible-1596328 >Chinese government confirms it has been funding EmDrive research since 2010 and believes in its benefits. My overlords.

Labs at Extremely Liberal Schools

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Hey guys, I've never really cared about politics but when your at an extremely left-wing college I've feel it leaks into the sciences. I've seen all my female/gay friends get paid positions in labs while I got nothing. I mean I'm on par with all my peers in terms of grades and experience but their defiantly seems to be a bit more of a push for females and minorities to get into the sciences here. I got called for an interview and I like to think I killed it but I never heard back my gay friend on the other-hand got called the next day. I'm wondering is this a trend or only something that happens on my campus. It honestly feels as though I'm being pushed out of the sciences in order to make room and it fucking sucks.
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when will there be a cure for tinnitus? Why is finding a cure for tinnitus not top priority?
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Well /sci/?

PEMDAS

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This fucking tard led a several hour long Facebook argument, claiming that if the problem contains both multiplication and division, you do division first. Why are people so fucking stupid? She even used the term PEMDAS, which negates her argument.
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OK can somebody explain this bullshit to me I watched the numberphille video and he basically seems to pull it out his ass uising high school math

Who are the 3 greatest scientists of all time

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straight up in your opinion can be any field?

a goddamn witch hunt

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>Trump transition team for Energy Department seeks names of employees involved in climate meetings >https://www.washingtonpost.com/news/energy-environment/wp/2016/12/09/trump-transition-team-for-energy-department-seeks-names-of-employees-involved-in-climate-meetings/?tid=a_inl&utm_term=.e4cf376c5502 Is no one else here seriously concerned with this? This is starting to look like a witch hunt on scientists who publish inconvenient findings. I don't live in the US, but this concerns me nonetheless. We need to become vocal, because this is unacceptable.

Probability Theory

11 more posts in this thread. [Missing image file: ]
Can someone explain conditional expectations to me? We have a probability space [math] (\Omega, \mathcal{F}, \mathbb{P}) [/math], and a [math] \mathcal{F} [/math]-measurable random variable [math] X [/math]. Now WHY THE FUCK is: [eqn] \mathbb{E} [ X | \mathcal{F} ] = X [/eqn] How the hell do conditional expectations with respect to a sigma algebra even work?
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At what age do you think going to uni would not be a viable option?
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Is Trans-Humanism the only answer there is? The way i look at it is that eventually machines will be advancing faster then humans and the only way to prevent them from dominating society by sheer power is to merge with them.
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What are the units for the rate = -k[A]/[B] ? Also, what order is this rate?
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So I took the calculus 2 final, got an A in the class. is 'calculus 2 being hard' just a meme?
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While I was taking geology at uni we, people from the department, would often go out for drinks at the end of the day. One of my peers brought along her roommate who was hospitality management or nutrition or some other such major. She starts going on and on about the healing properties and the different auras of various natural crystals. She won't shut up about it, she thinks since we are all geo people this will get our dicks harder than corundum. Everyone is just letting it happen, but I had never met this girl before, so I guess I didn't know the drill. She pulls out this necklace calls it "Blue Sandstone", starts telling us about how it must have formed in some mineral rich location and after eons in the ground it absorbed so much energy that now it radiates it out and keeps her grounded. Isn't it amazing how something natural can be so beautiful, look how it sparkles and shines it reflects from all angles just like someone who is grounded should. I wish more people would embrace the power of natural gemstones....like you all do. I can't take it, so I just tell her straight up, that it's glass, normal man-made glass. She is probably older than that hunk of garbage silica, in fact I'm pretty sure it is a Venetian method from centuries ago to sell waste glass. It has no crystal habit, it has no natural energy, it does less to keep you grounded than the beer glass in my hand (at least that has beer in it). She got pretty pissed. I don't get it are we just supposed to let people be wrong?

Can thermate melt steel?

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I guess it can. https://www.youtube.com/watch?v=5d5iIoCiI8g
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Is peak oil a meme?
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wtf, I hate sexist Dick Feynman now! "Well, someone only has to give me the principle, and I get the idea. All during the next day I built up my psychology differently: I adopted the attitude that those bar girls are all bitches, that they aren’t worth anything, and all they’re in there for is to get you to buy them a drink, and they’re not going to give you a goddamn thing; I’m not going to be a gentleman to such worthless bitches, and so on. I learned it till it was automatic." https://restructure.wordpress.com/2009/08/07/sexist-feynman-called-a-woman-worse-than-a-whore/
16 more posts in this thread. [Missing image file: ]
>Imaginary numbers are a pure product of the mind, literally not existing >They happen to perfectly describe dozens of physical phenomenons Do you think the 4th dimension is not actually time, but something we can only glimpse through the lens of pure math ?






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