Archived threads in /sci/ - Science & Math - 135. page

It is physically impossible to travel back in time because how time actually works, let me try to explain why.

In the 19th century, scientists realized the speed of light is always constant to everyone. A few decades after that discovery, Einstein came up with a theory explaining just how come. Time is relative, in a way the closer you get to the speed of light, the faster the outside world seems to run. We know that is true because satellites and some other things we use daily are based on the principle time is relative. So, if you want to reverse time, you will have to accelerate past the speed of light. That's impossible because, when you reach the speed of light, the Universe will have already ended, as, from the perspective of something at light speed, the Universe starts, happens and ends in one single instant.

>>9127470
Time travel to the future and past is not possible.

Call this moment youre in right now reading this t0. At t0 the entire universe is in some state relative to you. As time goes on, the state of the universe changes. Travel back in time implies you can completely reverse the entire universe to a previous state. This is obviously not possible because the very fact that you'd be in the past creates a different past state. Time travel to the future is the same. If you do nothing and move through states of the universe as you currently are, at tx, you'll find some state x. If you travel to the future you'd travel to some new state x'. In this new state, everything you would have done didn't happen.

>inb4 no free will

>>9127525
Time travel to the future is possible though.
Just not to the past.

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Best way to learn science is by doing science.

Same thing with math, best way to learn math is by doing math.

If you were really passionate about chemistry, you'd overcome your fear of numbers to learn chemistry.

Anyway, my college uses this book for 1 year chemistry. Find a pdf online if you want it free.

ISBN: 978-0078021510

>>9127394
https://sites.google.com/site/scienceandmathguide/subjects/chemistry

The resources in this link should give you more than enough information to attain a grasp on chemistry and dig deeper if you wish to do so.

If you desire to know about the basics of the sciences, check the sticky for useful info.

>>9127416
>>9127419
A-arigatou. I dunno if is passion or just mild curiosity, but somethings I get in the mood to try learn what I didnt in school, desu.

>>9127333
It couldn't because evolution could never predict what cucks men would've become and actually allow the always oppressed and repressed women to actually control anything and influence things. "Go back to the kitchen" interpreted collectively and figuratively is exactly what we need happen as a society if we are to survive.

>>9127333
>women have no real interests besides wanting to feel attractive and desirable?
No.

>>9127365
Only ugly women have other interests. Precisely because they cannot compete with the sexually attractive women.

it's healthy for you, actually. people who take lsd responsibly live up to 20 years longer than those who don't take any drugs or only smoke weed. not to mention the improvement in quality of life from IQ boosts, increased creativity, charisma, sexual appeal, etc.

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>>9127295
thats bullshit but i believe it

Eh. It's probably not _good_ for you, but unless your family has a history of schizophrenia or depression or whatever you'll be fine. It's worth trying at least once.

There's a small chance of HPPD, but that usually goes away on its own in a few weeks/months and it's not a big deal even when you do have it.

Wikipedia:
>LSD can cause pupil dilation, reduced appetite, and wakefulness. Other physical reactions to LSD are highly variable and nonspecific, some of which may be secondary to the psychological effects of LSD. Among the reported symptoms are numbness, weakness, nausea, hypothermia or hyperthermia, elevated blood sugar, goose bumps, heart rate increase, jaw clenching, perspiration, saliva production, mucus production, hyperreflexia, and tremors.

>>9127241
Are you getting deported José?

Too bad.

>>9127267
How is this a relevant response?

>thumbnail

nope because it would be considered ignoring your existence which is what culture promotes

I think the implication of "you happen to" in each line is where this gets tangled up. That "we" "happen to" be human implies "we" occupy something before we are born.

>out of all the conscious animals throughout all the billion years of life in Earths history you happen to be born as the only one ever capable of reflecting on this fact
So what, did "I" just barely miss the window to becoming a fish in the Triassic Era or something?

My answer to your question is no, science does not reconcile with this spiritual mumbo jumbo bullshit. If you can believe that anything that can happen will happen given infinite time, than all there needs to be is a >0 % chance of you happening regardless of how unfathomable of a fluke it may be. A process that results in an awakening consciousness able to differentiate between itself and everything else is at the heart of your capacity to reflect on these facts. It was never a matter of "what are the odds!" that you are you and not something else. That the odds ever existed in the first place is all that matters

>>9127208
you are "special" because you have to be that way. sentient experience only exists for those who were born with the ability to experience it.

no one is calling human experience a fluke. all of biological progression on earth up to this point occurred because of how it specifically happened. it's possible that biological sentience could have developed with another species besides humans (even a species which stems from something very different from primates, though it would probably be a mammal), and it is possible that the earth could have never been home to a sentient endemic species. these things didn't happen and the human species happened.

>>9127162
They put enough oxygen in those tanks to not kill you now

>>9127164
Why do normies make it so hard to kill yourself painlessly? Seems really evil to force people to use awful methods like hanging or overdose

>>9127164
>you don't get to die a painless death, goyim, you'll have to disfigure yourself in some painful way if you want out

I'm actually pretty mad about this now.

The image is vegan propaganda, peddling mental illness in the guise of health. Cheese is a threat to you brain, and please don't look too closely at the pile of pills at the bottom.

>Focusing on neurological, cardiovascular and metabolic health
Read 'Grain Brain' by Dr David Perlmutter, or check out his website for articles.

>>9127110
Fuck fuck fuck *your* brain not you brain.

Pretty much the only valid part of that image is the very bottom

Excercise, stimulation, and sleep. Those three things are infinitely more important than your diet as long as you don't have some horrible deficiency

>>9127044
Not Science or Mathematics
2 threads died for you so fuck off

>>9127309
>I cry every time
>I broke my ass to pass the entrance examination in math

>>9127309
http://www.concours-bce.com/sites/concours-bce.com/files/annales/280-2017-Sujet.pdf

>>9126968
There are people think everything is fake. Literally everything. However, wide angle lens don't really help things.

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>>9126968
>most people know dick about sciences
>most people know dick about photography
>most people are loudmouthed apes
pic related

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Why are there so many people who think this is fake?

>>9126827
Considering that the average life expectancy was 35 years old at the time.

>Considering that the average life expectancy was 35 years old at the time.

Enough with this meme. If a person could survive the childhood and teenage years, then he could easily make it to his 50's. The problem is that a shitton of people died while babies, that's why the average is 35.

>>9126838
That's what he said.

>>9126742
Link or explanation? I live in a cave.

>>9126742
Imo as a scientist, I'd say yes. People might sperg out about muh inherent value, but while his lectures were really good, it would be a really bad upholding of MIT's (or any good) moral codex to use lectures of somebody who sexually harassed his students.

So yes, MIT was in the right. He should have done it in private during his office hours like everybody else and not get caught on Skype like a retard.

>>9126773
when u nutted, etc.

Only if it is required or if homework/quizzes are given unannounced. I might show up sometimes to check in but sometimes the professors go slow compared to the book and I just read that. Got a class with random pop quizzes this semester fml

>>9126706
yes of course what kind of idiot are-
>>second year Economics
oh

>>9128919
>thinks he is superior studying engineering
>doesn't realise PhD in Econ is worth more than your already heightened narcissism
(you)

>>9126705
Yes, the initial impact would not kill you since you'd be falling like 5-10 feet into water. What will kill you is all the debris in the water that will act like the world's worst meat grinder.

these look fun honestly
http://www.dailymail.co.uk/sciencetech/article-3604428/The-Survival-Capsule-designed-withstand-tsunamis-earthquakes-hurricanes.html

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Ok what if you Jump right before it hits and bodyboard down the stunami?

[eqn]\mathrm e^h\,=\,1\,+\,h\,+\,\underset{h\,\to\,0}{o}\left(h\right)[/eqn]

My intuition says it's -1.

e^1/(log(x-1)) goes to one in the infinity.

So it's something like

(x-1)*1 - x , which is -1.

I wonder if this is correct, if it's in fact correct, my intuition is sharp as fugg.

>>9126497
I don't think it exists. Log infinity goes to 0. What is e^1/0?