Archived threads in /sci/ - Science & Math - 1347. page

>>8376398
Climate naturally changes, we've just sped it up.

/thread

>>8376398
yah, i mean if you want evidence you can find it down any avenue you really want to look.

if you ask "has the climate been acting strange lately?"

has the climate been acting uncharacteristically on a larger scale?

do the effects of these changes result in shifting weather patterns? why?


whereas if you look at the science against climate change, there's really not a lot. the best you will find that carbon dioxide is not the biggest contributor to climate change. and that's true, because water is. but water also evaporates at a pretty low temperature and there's a lot of it meaning a tiny increase in temperature and there's suddenly a lot more water in the air.

Get a two large bottles of water, add seltzer to one, and screw on the lids. Then direct a bright lamp toward both bottles for a few hours and measure their temperatures afterward. You should find that the bottle with seltzer water (more co2) is quite a few degrees warmer. Now extrapolate this to earth. The only thing humans have added to the atmosphere in large quantities over the past century is co2. This is because we burn fuels (containing co2) that have been buried for ages (kept out of the atmosphere). Water vapor, although it has greenhouse like effects, has largely kept to the same volume in the atmosphere because of the water cycle, and so is not really a cause of climate change alone, but it can respond to other changes in a negative way.

Now i will, thanks senpai

>>8381430
just found this out... guess I'm staying up.

thanks m8

>probe hits comet
>Deutsche Bank implodes

exciting friday

>>8384378
yeah, drink bleach

>>8384378
how much do they hurt, be honest so we can help

Quiet a bit when i move

>>8384084
Do you currently have them in the time domain?

You don't care about phase at all or do you?

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U just need dat FFT https://www.mathworks.com/help/signal/ref/spectrogram.html

>>8384265

Hey,Sorry I just came back.

Yes, I exported them to scilab with the command

[x,S,bits] =wavread("D:\Trabajos\Musica\Proyecto delay\basic delay sin.wav");

So, the signal would be on the variable "x".

Let me explain a bit further.

One is the original signal (an audio track)

The other one is the original signal with a simple FIR delay applied.

The transfer function of the delay (basically a comb filter) is H(z) = 1+gz^(-M), where M = delay time * sampling frequency

I want to analyze bot signals to prove in practice the theoretical results of the analysis of the filter, that is:

-It affects the frequency domain, as a comb filter
-The group delay also has the form of a comb, introducing phase distortion

Thanks.

>>8383886
Top kek. Not surprised either. Betas vote for lib-tards

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>>8383886
Color me surprised!

>>8383886
>links nbcnews article about a commercial, not an actual scientific study as proof

Also

>black bulls
>low T

kek

>>8383583
yes but you need to do math to get smarter.

anyone intelligent enough to do math is smarter than everyone who chooses not to do it even if they struggle at it

also

even if youre dumb and bad at math the version of you who chooses to do math is smarter than the version who doesn't.

>>8383583
If you were prepared to accept the truth, you wouldn't have bothered asking.

no. sorry.

We all slowly transcend mankind.

It's called aging.

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>>8383563
damn..

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>>8383562
Most definitely OP.

we make like lots of money and we dont want noone stealing it so yeah we jus put that shit in a bank, its normal

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>hiring people to clean up your financial situation
anyone worth their salt does it for free since the companies they invest in for you will pay them

>>8383555
>not knowing how to conjugate verbs correctly
Kys

>>8383440
>How do you pull correctly an all nighter for an exam
you don't. You read your study materials and take notes until a sensible time of night to go to bed, and show up to the exam well-rested and after a hearty breakfast.

>>8383443
you sound like a faggot

Economics is easy af. Supply vs Demand graph every problem and follow what the graph says

>>8383300
>Facebook
stopped reading there
>>>/reddit/

>>8383300
report it you fucking idiot
remember youre competing against everyone in school, so find ways to screw her and everyone else up and come out as at least one of the top 3 of the course

>>8383300
I'd report her. Do it anonymously or in private, so you don't look like a snitch.
I just hate cheaters tbqhwyrnf

>>8383090
This is a perfect application of machine learning.

Equip a program with only the tools to browse 4chan. Have it request the catalog multiple times to keep track of posts that come and and go and so that it can create its own internal catalog of alive threads.

Then through another thread (in the multi threading sense of the word) it should browse the links it has stored in its list (which would be the threads) to see how many replies they get while it keeps measure of time and it stayed alive and replies.

Obviously also give it tools to record the words used in the post and the general structure used.

After about a month it would be perfect, assuming that we would get meme-frozen by which I mean a state where we no longer create new memes but instead just keep reusing pre-existing memes. Kinda like 9gag.

One important variable that has a big impact on the number of replies and which is very easy to determine is the time and weekday at which the post is submitted.

I think one would be able to make reasonable guesses when considering aforementioned factor plus applying statistical methods on a comprehensive dataset of "content - number of replies".

>>8383090
Wildly inaccurate is my guess.

I'd hit it with the meme hammer and do some variable sequence length regression analysis by feeding an LSTM neural network character level posts and training it to output the number of replies.

dumb frogposter

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>>8383068
I can assure you those of us being oppressed are making major strides but we are under threat of reprisal.

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>>8383068
>dumb frogposter who can't use jsmath tags properly also cant use google
what a surprise

https://en.wikipedia.org/wiki/Fractional_calculus
>Fractional calculus is a branch of mathematical analysis that studies the possibility of taking real number powers or complex number powers of the differentiation operator

>>8383051
>But there is no way there are any cheat codes or player characters. That would be absurd.

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>>8383055
thats what you think dumbass.

>>8383036
The carbonation can be dissolved in the solid drink or frothed up by poor pouring, pun intended. So the carbonation meant to stay in the drink floats away once the foam disappears.

http://www.artofmanliness.com/2014/03/17/how-to-properly-pour-beer/

>>8383052
I figure there has to be at least a little more to it, as the issue appears correlated to neither how the cup is held nor the speed of the dispenser.

>>8383060
I mean we are going off of anecdotal evidence only. So, my guessed knowing nothing about your experience is that 1) the way the cup was held, or 2) there was less carbonation to start with. But you can never know unless you test it yourself or find some type of research. Otherwise i stand by my explanation over what you figure or feel.

>>8382946
>Jack connector doesn't have that, because it only has an input end
No it doesn't.
Jacks have two or more contacts. Those black bars you see are delimiting the three contacts in your picture.

Well you certainly weren't kidding when you said you don't know anything about physics or electronics.

>>8382946
Im not completely aware of the physics behind charging low power devices, but i know this:

1) Audio jack connectors are output only, and more importantly are not connected to the charging circuit. So, you cant charge using an audio cable, and even if you could the power would not make it to the battery but fry your motherboard

2) The bandwidth cap for audio cables is like 192 kBps whereas a simple usb 1.0 has a bandwitdh of 35 mBps. So not only can the usb input and output info, it is also roughly 200 times faster.