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Some of my friends were talking about someone who managed to change their eye color without surgery or contacts. How is this possible /sci/?
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>>9022565
Copper poisoning
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>>9022565
Eye color naturally changes when you're a toddler I believe
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party rockers in the house tonight
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I desperately need help /sci/
Sorry for so much text.
I come from the land of Slovakia (shithole of middle Europe) and the education system here sucks ass. You didn't get to pick whatever you want to learn, you have a fixed schedule like every other kid in the class. All students are supposed to be learning the same stuff at the same speed.
This has left my knowledge of mathematics very unbalanced and full of dents. There are fields of high school math where I could easily score A+ on a test while I just couldn't understand some other fields.
I wouldn't really care, but physics is my passion. I could not imagine my life without physics. I don't have problems with physics itself, but the complex math behind it is a totally different story. Before I graduate from high school, I want to catch up with all those dents in my knowledge to be able to gtfo my country to get some decent education elsewhere.
But the problem is: Time is limited, I don't even know what I do not know, and my drive to learn is not as high as it used to be, since school made math too forced for me.
I am willing to work my ass off, I refuse to give up on my dreams this easily, but I need a direction. I need to learn effectively. Private lessons are being considered.
Absolutely ANY kind of advice would help me.
Thank you all incredibly much, even for a mere bump you could leave here.
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X=X
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>>9022358
A statement is either true or false. Learn what a tautology is.
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>>9022358
Look on youtube "8.01x MIT Open Courseware Walter Lewin Physics"
It's basically freshman year college physics, so it should pique your curosity as a high schooler
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Name me ONE thing science can do that nature does not already do better.
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Identify racial IQ differences?
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>>9020683
enable me to shitpost on /sci/
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>>9020683
GMOs
airplanes
cars
computers
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what would they be? for some reason it makes me think of bluer creatures
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>>9016043
Seems reasonable to me. Plant life on earth is green because the suns output peaks in the green part of the spectrum. Bluer stars means that peak will shift left (ie. become bluer).
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>>9016043
Hotter (especially blue) stars don't have the lifespan for any life to develop on nearby planets. They also emit much stronger deadly radiation.
Meanwhile colder stars' "habitable zone" is very near to the star, that results in permanent tidal lock and severe radiation from the star
Not the best conditions for any organic lifeform possible
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>>9016268
https://en.m.wikipedia.org/wiki/K-type_main-sequence_star K type stars could be the for life.
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>That one friend who always questions everyone's (IQ), just because he is insecure about his own
Its gets annoying after a while
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I wish IQ had never been discovered.
I hate knowing quantitatively how inferior I am to the successful people in my field, even though in terms of the general population I won the genetic lottery (98th percentile).
It's just unfair that you have to be in the 99.9th percentile to even have a SHOT at contributing anything useful, even though plenty of people would love to do so.
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>>9024923
I am disturbed at how accurately you can tell someone's intelligence just from their face
If someone is a retard, they always have a retarded face.
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>>9024931
It wasn't discovered, it was invented you brainlet.
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Why is nuclear unprofitable?
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>>9024288
because the word 'nuclear' scares away anti-science leftists, just like 'GMO' does
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>>9024288
>>9024289
Nuclear is heavily subsidized. That's the main reason it is "cheap". Just like all other energy generation forms. The problem comes from the consumer. People are just too fucking frugal to be paying $10 per kilowatt hour. That's about how much all utility-tied energy generation would cost if none of them were subsidized.
https://en.wikipedia.org/wiki/Energy_subsidies
The reasons some energy generation forms have more subsidies than others is because it is more popular.
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>>9024288
Yayoi is poor and dirty. Literally the only one I wouldn't bang.
Anonymous
African languages & abstract concepts 2017-07-09 01:56:06 Post No.9024042
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African languages & abstract concepts 2017-07-09 01:56:06 Post No.9024042
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African languages & abstract concepts
Anonymous
2017-07-09 01:56:06
Post No. 9024042
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This isn't a /pol/ thread, I'm just curious about the claim that a lot of African languages do not include abstract concepts, such as future hypothetical (would, could, will, might) or past (would have, could have, should have, etc).
Firstly, is it even true? If so, was it a matter of a lack of necessity for these words and concepts in tribal hunter-gatherer life? Or is it the case that these concepts don't exist because the speakers' consciousness simply does not grasp them?
Unfortunately I think a lot of studies into this wouldn't clear ethics, but it's a fascinating topic.
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I doubt that past possibilities (eg would have) do not exist, given how distinct the feeling of regret is, and how it ties into past possibilities and the how you would change your actions.
Future hypotheticals would need to exist in usage, as they are fundamental to planning, which is a basic aspect of hunting and human interaction.
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>>9024042
First of all when people say their languages "don't have past tense" or whatever, they don't mean that their language doesn't have a way of expressing those concepts. You have to realize that in linguistics "tense" means something different than in everyday conversation. It refers to morphological marking, not just reference to the past. In that sense, English doesn't have future tense. We have past and present tense marking on our verbs, but no future tense. We express future tense in other ways, such as with the auxiliary "will."
The misconception that certain languages don't have a way of expressing the concept "past" essentially stems from irresponsible or ignorant reporting.
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http://www.bbc.com/news/science-environment-13452711
That's about an Amazon tribe but yeah seems to be true.
Think it's more likely unnecessary for tribal life than inability to grasp the concepts.
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Can /sci/ name them all without looking it up?
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>>9023791
The guy on the center is Einstein, girl is Marie Curie, guy to her right looks like Freud, and on the back row there's Teddy Roosevelt
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>>9023793
behind Albert to his right is also Paul Dirac and behind him to the left of him is Schroedinger in the second row to the right in Boher and two guys to the left is Louis de Broglie
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>>9023791
>Einstein
>Marie Curie
>Schrodinger
>Niels Bohr
>Heisenberg
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So lets say there is this procedure where you have 50% of surviving and your doctor do this procedure twice on you.
What is the new percentage of surviving for both procedures and why is it like that?
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25%
you survive half of the first time and half of that time you survive
1/2*1/2 = 1/4
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>>9023718
25% chance of surviving. This is basic probability (assuming you your chances are not reduced in the second for medical reasons).
The chance of an outcome in the first event will not affect the chance in the second. As such, you still have a 50% chance of surviving the second procedure regardless of the outcome of the first.
Before any procedure you have a 100% chance of survival
After the first procedure, you have a 50% chance of survival.
After the second procedure, you have a 50% chance of surviving again. 50% of 50% is 25%.
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Enrolled in Genetics, General Physics 1, General Chemistry 1, and Statistical Methods. I enjoy stress and a 16 hour schedule this fall
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>>9023489
>only 16 hour
>not sarting with linear algebra and vector calculus
>not immediately taking modern physics
brainlet tier. back when I was an undergrad, I took 19 credits my first quarter because the university wouldn't let me enroll in more.
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>>9023489
This is a completely regular schedule for STEM, so you better get used to it. It only gets harder from here.
Maybe not, though - looks like you're probably premed.
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>>9023489
You are like a little baby. I have 31.5 hours this winter
>communications for engineers
>numerical methods
>digital electronics
>physical electronics
>electromagnetic waves
>systems and simulations
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So, after two glasses of sweet red wine, I was thinking about numbers raised to the zero power... Let's take 6^0 for example... Most people say that anything raised to the 0 power is 1. ...But I dont think this is true. Their argument being, that the associative property tells us that for example 6^3 is 6 * 6 * 6... which is the same as 1*6*6*6.
But the existence of the 1 is purely there for logistics sake. It's like putting a 1 in front of an X variable. The people who argue that any number raised to the 0 is 1, imply that the 1 must be there and therefore 1*(nothing) is 1. BUT
that 1 doesn't need to make there, we fabricate it's existence because it can help us out during certain operations. Just like the 1 in front of the X.
The problem is, is that the 1 in a situation like 4^0 or 90^0 directly impacts the outcome. Without thinking that there is a real 1 in exponential multiplication like 3*3*3*3, then that would mean 3^0 is really zero, and not 1..because that 1 doesn't have to, and shouldn't be be taken to mean it's literally there. Does anyone else agree with this?
It seems to me, like we're artifically saying that anything to the 0 power is 1, based on a 1 that is used for convention and not really "There". Because of it's optional nature...it should not be able to 100% affect the operation of raising something to the 0 power...
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>>9023477
Are you the 1/0 guy?
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>>9023477
Whoops, I meant to say, the Identity property, NOT the associate property...
>>9023478
lol no... I'm assuming he's a troller on here?
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>>9023477
But you can also argue that
ln (x^0) = ln (1)
=0*lnx = 0
So really, defining x^0 =1 is just an identity for exponents.
1/1=1
1/0.1=10
1/0.01=100
1/0.001=1000
1/0.0000000001=10000000000
1/0= infinity
Right? Why not?
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Infinity isn't a number
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>>9023106
False because 0 and infinity don't exist.
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>>9023106
Euler, best mathematician ever, said in his calculus textbook that a/0=infinity
But these brainlets will tell you it's "undefined" or some bs like that. Go figure
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Is it sometimes beneficial to be anti-science if that science hurts more than it helps?
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>>9022740
only if you're tying to get laid
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>if I can't kill people I don't like, then science isn't worht it!
>"help"
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Science only tells you what's going on, it doesn't tell you what you should do, so it can't really hurt or help anything. And you'd only know to be anti-science AFTER the science was done and you had the information.
So no.
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Do you think that engineers will be replaced by machine learning in our life time?
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No not at all, we're going towards a society where humans use computers to accomplish their goals, not autonomous machines. We're very far off from autonomous machines. In our lifetime? Depends how fast science progresses. With an increased population and countries like India joining the stage, it's hard to tell. I would say like 40 years away as a conservative estimate, autonomous machines. But honestly I'm not an expert and that's entirely speculation. This would be a good question to ask the guys at IBM or Microsoft. That's where I'm hearing this stuff from.
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>>9022601
Maybe not in our lifetimes though. I mean, how long will our lifetime be? It's all so hard to tell.I think it's important we embrace science and be brave, not to be afraid of what we don't understand, or what could be.
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>>9022607
But also I believe in massive global surveillance mechanisms to detect threats to humanity. I think it's important that this technology can out-pace genetic engineering. Along with pandemic prevention protocols in the health care industry to prevent bio-terrorism.
"Science"
Reminder that government agencies like these basically function to protect industry from justice for everything it hurts and actual science. This is just mindless, uninformed empiricism and it's because the nanny state protects bussiness and not people.
What they are doing is retarded anyone who understands complexity, biodiversty and resilience knows that.
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https://www.nrs.fs.fed.us/pubs/34252
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Nobody cares about some dumb fish or frogs. It's because of deranged nofun allowed faggots like you that ddt was banned and I'm being eaten alive by mosquitoes now. Fuck you.
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I was just about to post
I really wanna delicate my scientific knowledge to Kathryn Blysma. (sp).
She was the one who gave me books like an origin of species, on the shoulders of giants, a brief history of the universe, etc. I failed her class, but she would just let me sit in a corner and read. She was the only teacher that seemed to really care about me, and I love her for it.