How did eyes appear?
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>>8969382
They've evolved at least three times, in humans the eye began as a simple patch of photosensitive cells that allowed an animal to know when it was light.
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>>8969382
Why are half the posts on /sci/ anti-science Christians posting anti-evolution and flat Earth shit?
Though, I suppose every board is trolls trolling trolls, so... Par for the course hereabouts.
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>>8969403
Because mods won't ban /pol/ poster from posting outside their shit hole and a lack of math captchas
Anonymous
Pattern Matching should replace Science 2017-06-11 05:48:26 Post No.8969366
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Pattern Matching should replace Science 2017-06-11 05:48:26 Post No.8969366
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Pattern Matching should replace Science
Anonymous
2017-06-11 05:48:26
Post No. 8969366
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Does anyone else think that the concept of Pattern Matching is a better system than Science? All science is, is a toolbox for humans to share, collect, etc various patterns. It seems stupid to use the term science and separate it from the real fundamental basis for it.
Pattern Matching and a system for identifying patterns seems far better than "Science". It also will transfer to things like AI better. Science is just a needless bit of fluff and useless complication that misleads people on what is really happening at the most basic level.
Pattern matching also gives better arguments. AKA "Have you seen any patterns to back up your belief in God" vs the old and tired science arguments. Also in the future or in non-humans there is much more of a potential to practice pattern matching without the need for scientific methods because most bias could be eliminated. For instance if complete brain state sharing or perfect empathy (actual understanding) exists there is no reason to worry about bias. In fact AI-powered pattern matching will be better than science at everything science purports to solve.
So R.I.P. Science, let's kill it soon and replace it with a more elementary form simply called "Pattern Matching" without all the dumb meatbag baggage.
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>>8969366
science for instance purports to give meaning to things to some degree. This effort is extremely stupid. Pattern matching is superior in every way to science. It gives a clearer and more accurate view of existence and is just naturally a better word and language for describing things.
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Science is to humans
What
Human Voice Machine is to dogs
Dogs would need a human voice machine to speak english.
Humans would need science to properly do pattern matching.
Things that exist won't need science soon. Hence we should start phasing out science just like humans don't use human-voice machines.
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>>8969366
This is utter nonsense,
Maybe learn what Science is before claiming to know what to replace it with?
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Ok, I'm here from /diy/, /ohm/ in particular, and I'm wanting to find the best way to etch a PCB.
Now typically ferric chloride is used. The copper-covered PCB is drawn on with an etch-resistant pen, and the ferric chloride pulls out the uncovered copper into solution, leaving behind the wanted traces/wires. This takes some time, and in the end you're left with a solution full of copper ions that you can hardly dump down the sink. Some improvements to this method involve replacing the solution with copper(I?) chloride, and adding acid and peroxide to the solution to refresh it, and this apparently lasts a while.
My proposed solution (heh) to this is to electrolytically pull the copper off the board and onto another copper electrode, speeding up the process and leaving no copper in solution. But I do not know whether this will leave any amount of copper in the solution, which I imagine will happen, or if a simple, disposable table-salt electrolyte will release any chlorine gas in the process. I'm not too good at reading wikipedia's table of reduction potentials, you see.
One idea of mine to retrieve any lingering copper would be to run a sacrificial iron anode and pull some iron into solution in exchange for the copper, but I'm not sure if this would be worth doing, if necessary, and if I could get away with using an inert electrode if the chlorine volume produced wouldn't be problematic.
Any chemists/electrolysists out there willing to give me a hand?
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>>8969349
you're going to want urine. Pee on the board, this will etch it correctly
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>>8969349
why the fuck would you use electrolysis?
http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/
You can't etch pcbs this way, because the traces have to be, well, disconnected. Fuck, why are you even etching your own PCBs? It's cheap enough to just buy from china these days.
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>>8969349
>ferric chloride
I thought most of the people use sodium persulfate nowadays
>>8969355
>why are you even etching your own PCBs?
Prototyping. You can etch a PCB in 20-30 minutes to check if everything is ok instead of waiting a month or two for a fab house to ship you a faulty PCB, because some traces are too close to each other and some magic happens.
Also, they're the preferred method for some hobby or one time projects.
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What is the most/sci/ pet?
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Another living human. Probably the only thing to satisfy their egos
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>>8969260
A framsticks zoo.
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Snek.
Anonymous
Be part of a Research Study 2017-06-10 08:09:57 Post No.8968618
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Be part of a Research Study 2017-06-10 08:09:57 Post No.8968618
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Be part of a Research Study
Anonymous
2017-06-10 08:09:57
Post No. 8968618
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This research is about online interactions in adults (18 years and over) and hence why its being advertised in this online group. It is being carried out by The University of Nottingham.
It should not take more than 10 minutes.
It is a vital piece of research to help us understand the fast changing face of online communication.
Please click on the link to find out more and complete it.
https://nottingham.onlinesurveys.ac.uk/online-interactions
Share with others if you can.
This is much appreciated
14 Posts / 2 Images
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>>8968618
>https://nottingham.onlinesurveys.ac.uk/online-interactions
>Introductory wall of text.
While it owuld be amusing to see how the typical 4chan participant differs form that of Reddit, I suspect the ADHD troubled Redditer would be no match for the grand autismo of 4chan.
There are good reasons (ethics) for the front page. It will however present a "survivor bias" into the analysis.
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>>8969650
i got to page 2 before giving up
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>>8969650
Yeah, that was the first thing I've noticed too.
Also the questions really aren't fitting for this place.
what's the hardest integral you've ever encountered, /sci/?
pic related, I just went through the derivation of the anomalous magnetic moment.
shit's so cash
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most hectic i've done so far is renormalization of phi-4 theory
u jelly, non-physics fags?
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>>8967706
>what's the hardest integral you've ever encountered, /sci/?
Other than pumping up your muscle (brain), that is the point of learning this? Does your job requires this knowledge...because you'll never use this in your life unless in that field.
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>>8967710
>not understanding the intrinsic beauty of mathematics/physics
try again, brainlet
Why aren't triangles where the side lengths [math]a + b < c[/math] considered valid triangles, /sci/?
I know why you can't physically draw them, like a lot of abstract things in math, but you can still get an area out of them with the meme imaginary numbers, for example a triangle with side lengths 1, 2, and 5 has an area of:
[math]2i\sqrt{6}[/math]
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define triangle
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>>8967634
You could just start to use rational trigonometry.
You can have a triangle with quadrances 1,2 and 5 there.
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Things that would be considered dumb useless shit in the past are serious research now
Look back on infinite sets and set theory, category theory, automatic sequences and many more
In 200 years someone might take this idea seriously and develop a new area of research about retarded imaginary triangles, and the formula for imaginary area will bear his name
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Can a molten thorium reactor avoid the pointless, brainless, stupid knee-jerk anti-nuclear reactions of hardcore enviros, popsci writers, and unwashed masses of the world? Or do we have to wait for fusion?
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>>8967549
https://youtu.be/tyDbq5HRs0o
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>>8967549
>still using steam
i swear humanity won't survive if we keep shit like this
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>>8967557
>implying fusion is not going to use steam
Anonymous
"Modern Man" Ain't so Modern 2017-06-09 07:17:22 Post No.8966508
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"Modern Man" Ain't so Modern 2017-06-09 07:17:22 Post No.8966508
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"Modern Man" Ain't so Modern
Anonymous
2017-06-09 07:17:22
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https://www.scientificamerican.com/article/ancient-fossils-from-morocco-mess-up-modern-human-origins/
https://www.nature.com/nature/journal/v546/n7657/full/nature22336.html
So, have we got a big one?
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>>8966508
Pretty neat read.
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>>8966508
HOL UP
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>>8966705
>modern humans
There's really too many races with skulls that are vastly different to have a catch-all for skull shapes. Also, sloping isn't really a thing that determines stuff like this.
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>You are given the opportunity to travel back to 50.000 BC
>However during the time travel all your memory will be erased, your scientific knowledge is 0
>You are only allowed to take one sheet of paper and a box in the size of 50cmx50cmx50cm with you
>minimum goal is to survive, maximum goal is to build a civilization
>What will you write on the sheet of paper?
>What will you put inside the box?
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>>8962316
>>What will you write on the sheet of paper?
Kill yourself.
>What will you put inside the box?
A gun with 2 bullets (incase I miss my brain with the first shot)
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>>8962316
I'd write:
If there is no government, rape is legal. You can now finally live your dream harem, but you first need power. But look, you still know how to read! Which means that you have kept your modern intelligence and your 160 IQ so you re-derive all of mathematics, philosophy and politics and then rule the world. Then enslave as many women as you can my main man. All you need for this is in the box.
>What will you put inside the box?
Swiss army knife
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>>8962322
GOAL NOT ACHIEVED
TRY AGAIN
RESPAWN IN 3,2,1....
>this is an instant loop, until you unlock the goal
Anonymous
autism/pet peeve thread 2017-06-05 09:09:30 Post No.8958933
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autism/pet peeve thread 2017-06-05 09:09:30 Post No.8958933
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"radical x"
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"Half-powered x"
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saying "foil" past middle school
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>>8958955
In what meaning? I call shiny Magic cards foil (adjective) and I call thin sheets of material a foil (noun).
Who can think of the biggest number?
I start: 100
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-1/12
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[math]10^{300}[/math]
What do I win?
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TREE(3)
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I heard an exobiologist who said that living organism are made of carbon on Earth, but that it could be other elements on another planet.
In the same way, could the element that allow us to breath be something else like fluorine for example on another planet?
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>>8971328
>>>/gtfo/
take your poorly worded questions with you
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>>8971329
English is not my mother tongue. You needn't to so be so rude.
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What questions do you have about the universe that haven't been answered yet?
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why is the earth flat?
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which other planets have life
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>>8968480
Why is this board so full of blatant ironic shitposting?
Yes, that is my question.
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Is there anything more autistic than using LaTeX in >current year given the typesetting capability even found on phones?
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>>8963117
there's nothing else good at writing math
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>>8963136
Maybe, but math academics tend to use Latex to write more than just formulas as if to say, "hurr durr look at me I am le math man"
The fonts are shit, they look like they should be in a Tim Burton movie.
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>typesetting
>phones
laffo