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Archived threads in /sci/ - Science & Math - 12. page
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What are the biggest public health memes?
30 replies and 3 images submitted. Click here to view.
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Tap water is in any way dangerous
>inb4 rajeet shitposts on how his country has faeces in their watrer
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>>7846228
You don't need to be Rajeet to live near a fracking facility and drink lead water.
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>You can get a cold from standing outdoors when it is cold.
>If your hair is thinning, shave it and it will grow back thicker.
>Condoms are extremely effective in stopping transmission of viruses such as HIV and HSV.
>HSV is dangerous and ruins your life forever.
>A glass of red wine a week is good for everyone.
>Eating fat makes you fat; avoid fat at all costs.
>Sugar...
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How can humans compete with actual gorillas?

>bigger muscles
>don't need jobs for survial
>vegan
>don't even bother lifting

No wonder all those women in Japan have been going over to the gorilla and visiting the Zoo just to see the gorilla. Gorilla theory is an new theory stating that women's sexual attraction is really the gorilla due to their combination of height and frame. Gorillas have bigger frames than humans and...
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11 replies and 2 images submitted. Click here to view.
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>>7846213
>don't need jobs for survial
they live on welfare, from the zoo
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Human skeletons are more aesthetic.
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>>7846227
because you are a human and you are biased to see human shape as more aesthetically pleasing

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your privilege, humans pls check.
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> its got a bigger brain
> can't even walk
This proves that smaller brains means better intelligence :^)
>>
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>>7846096
bigger brain = more rape
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>>7846096
I dolphin brain is superior, why do they tricks for human entertainment?
Dolphin make bubble hoop to copy human technology and practice gangbang.
Why no dolphin city? Why no dolphin space race?

If I feed hornworms carrots all their lives will they turn orange?
What color will the moths be?

Sorry if this belongs on /an/ but they're all women who own cats, they don't know this stuff.
11 replies and 5 images submitted. Click here to view.
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why don't you try it and find out
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>>7846053
I don't have any hornworms, and if one gets loose it could cause an agricultural nightmare!!
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>>7846046
it took me exactly 2 mins of google search to look for this :Tomato hornworms are known to eat various plants from the family Solanaceae, commonly feeding on tomato, eggplant, pepper, tobacco, moonflowers and potato. Accordingly, they are often found on defoliated tomato plants, the caterpillar clinging to the underside of a branch near the trunk. They are difficult to spot due to their green coloration. Tomato hornworms fluoresce differently from tomato leaves. Using an ultraviolet light source of 375 nm and viewed...
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NASA isn´t a Spacial Organization to explore the lie "they" (the famous and rich 1% of people who runs this sad World) call "Universe", their ambition is to explore Antartic, the forgotten Continet, since they find out about "what" really is behind that intimidating ice/snow wall´s. We can think/imagine about so many possible and credible reasons for this constant lies and corrupt educational system, for exemple:
-> one reason we can´t even imagine, behind that ice walls in Antartic is a military resistance for this fake sociaty (like MATRIX);...
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19 replies and 8 images submitted. Click here to view.
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Australia is really smooshed in that pic
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>>7845999
Hey. If you want to be fucking retarded, you are in the wrong place.
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why you calling me retarded? I´m only want to know some opinion´s.....

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All matter is composed of waves. Particles don't actually exist outside of the mathematical model. Photons, Electrons, Bosons etc do not exist as individual ball-like particles, and are a mathematical quantification of a wave-like phenomena.

Am I correct?

Discuss...

Also, with Einsteins' wave theories on gravity due to be confirmed, can we finally stop looking for the "Graviton" etc and switch to Quantum Field Theory?
13 replies and 1 images submitted. Click here to view.
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OP here, I just saw this thread..

>>7843901

.. And I have to say I'm disappointed with the level of discussion. Is /sci/ a serious discussion board? I assumed it was.
>>
> Is /sci/ a serious discussion board?

>>7845400

>>7838087

>>7845374

No.
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>>7845948
The general gist is that things are not intuitive. You are trying to map something that happens at a completely different scale to something you can relate to like a wave.

The reason waves to you behave a certain way is because of lots of observation and matching waves to a certain pattern.

When you talk about things at a very small scale they don't behave along the same patterns as at bigger scales. So you can't match their actions to any known pattern you can think of.

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Why cannot divide by zero? Tell me /Sci/ mathematical dumbos.
20 replies and 1 images submitted. Click here to view.
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>>7845901
You can't divide by real numbers since they don't actually exist
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>>7845901
Back to >>>/r/eddit
>>
consider the function 1/x for any real x. as you get really close to 0 from either side, the output of the function gets bigger and bigger.

what should the output be when x = 0? it must be bigger than all the other outputs, which cover all real numbers. so the function must be infinite there. But infinity is not a real number, so 1/0 is undefined.

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Friendly reminder that e^(i*pi) + 1 = 0
19 replies and 2 images submitted. Click here to view.
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>>7845900
THANKS REDDIT
>>
Was euler a redditor?
>>
So (e^i*pi)/0=1.

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>too dumb to study pure math with confidence i'll get tenure as a researcher in an academic institution
>too smart to compromise by studying engineering and doing industry research

what do?
28 replies and 2 images submitted. Click here to view.
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>>7845891
>implying you could do either
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>>7845905
>what is reading comprehension
>>
>>7845891
Applied math, duh.

>"He thinks mathematics is discovered!"
11 replies and 1 images submitted. Click here to view.
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>>7845887
In my experience it is usually someone from a religious background trying to replace man god with math god
>>
Discussing whether math "exists" or not involves so many ambiguous concepts that it doesn't drive us anywhere because there is literally nothing to know about semantics (they're defined by us), so OP is as much a faggot as the people he's criticizing.
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>>7845887
>he isn't a pythagorean
>he isn't a radical platonist

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How much math did you have to take to get your CS degree?

How much did you take as electives?

I took quite a few elective courses such as real analysis, abstract algebra and stochastic processes.
17 replies and 2 images submitted. Click here to view.
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Are differential equations useful for CS? Obviously, they are used for simulations, but beyond that?
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>>7845852
Diff eqs are also used in signal processing.
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>>7845852
signals and circuits both use diffy qs

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>wasting billions of dollars on rockets when there are still millions of starving children in the world
Explain yourself spacefags
58 replies and 11 images submitted. Click here to view.
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They should learn how to fucking feed themselves.

They should learn how to build a waste system.

They should stop being so fucking stupid and clinging to retarded beliefs that only make their lives worse.

They should start a real fucking government and actually make it work. Not just have some Jumba Mumba who is the leader for a year and forces everyone to carry him around the place he leads on their shoulders while he praises some false god.

Yes I am mad, all of the stupid fucking idiots who demand help from first-world countries need to get off...
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>>7845663
Well, it isn't even this >>7845672 you see they did feed them selves at one time. However, the USA sent them food for a generation or two then removed that food. During that time, farmers stopped farming because they couldn't compete with the free food. By the 2nd generation no one who was physically able to farm knew how to farm properly. The food was cut off from the USA and everything turned to shit.

This is a common method the USA uses to completely...
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Because traveling through space will actually enable us to visit new worlds, rich of resources and we also escape the threat of being wiped out by a meteor one day.
And because starving is only the problem of starving people by the way.

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Is there a formula to calculate the grey area shown in the picture?
I was thinking about subtracting from the area of the bigger triangle $A_T = \frac{r (r\tan x)}{2} = r^2 \frac{\tan x}{2}$ the area of the circular sector $A_c = r^2 \frac{\pi x}{2\pi}$ and the area of the smaller triangle outside the circle $A_t = \frac{a b }{2} = \frac{(r - r\cos x) (r\tan x - r\sin x)}{2} = r^2\frac{(1 - \cos x) (\tan x - \sin x)}{2}$.
So we get [math]A = A_T - A_c - A_t = r^2 \frac{\tan x}{2} - r^2 \frac{\pi x}{2\pi} - r^2\frac{(1 - \cos x) (\tan x...
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24 replies and 3 images submitted. Click here to view.
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>>7845615

Your writing is incomprehensible but I'm assuming you are asking you to do this without integrating?
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>>7845619
Yeah I need to calculate the grey area but I don't even know if it has a name, on google I couldn't find anything.
That's an attempt I made but I don't know if that's right.

I'll repost the text using the eqn tag, maybe it will be easier to read:

I was thinking about subtracting from the area of the bigger triangle [eqn]A_T = \frac{r (r\tan x)}{2} = r^2 \frac{\tan x}{2}[/eqn] the area of the circular sector [eqn]A_c = r^2 \frac{\pi x}{2\pi}[/eqn] and the area of the smaller...
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>>7845629

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this "adiabatic" engine developed by Smokey Yunick and Ralph Johnson in 1984
16 replies and 1 images submitted. Click here to view.
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specifically, how does it avoid destructive pre-ignition detonation?
http://www.hotrod.com/how-to/engine/hrdp-1009-what-ever-happened-to-smokeys-hot-vapor-engine/
>>
moar details:
http://www.rexresearch.com/yunick/yunick.htm
>>
...it clearly werks, but hao?
http://www.gafiero.org/smokey.shtml

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/co/ couldn't figure it out. Let's give sci a try.
Two men of equal intelligence attempt to outwit each other. One can see the future and one can read minds. Who outsmarts the other?
32 replies and 2 images submitted. Click here to view.
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>>7845474
No one wins, because one cannot win without the other
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>>7845475
If one of them knows the answer, then it depends on who shouts first
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>>7845474
Assuming only one of them know the answer, then it is the future reading guy, he can see the answer immediately, while the mind reader has to go through the other guy's thought process which takes time

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