Archived threads in /sci/ - Science & Math - 1512. page

They still exist

See : Australian Aboriginals, Pygmies

>>8229165
If dolphins had better ways of retaining intergenerational information they would have reached similar levels as humans.

>>8229197
Idk. Granted they're dumb but they're still closer to human intelligence than they are to something in between humans and animals.

>>8229102
>>8229099
Any thoughts OP. I can just go through the steps and figure it out from the book. But you did sorta say you'd try.. Just curious what you'd get.

>>8229115
>>8229114
84 units

https://en.wikipedia.org/wiki/Mathematical_proof

check out methods and go dig deeper from there.

learn proof by induction.

ex: 1+2+...+n = n(n+1)/2

proof: case n = 1 , left side says 1, right side says 1(1+1)/2 = 2/2 = 1 , so the base case is true.

fix a natural number k, assume the proposition is true for k, then we show it's true for k+1:

1+2+...+k+(k+1) = k(k+1)/2 + (k+1)
= [k(k+1)+2(k+1)]/2 = (k+1)(k+2)/2
so the prop. is true for k+1.

Therefore by the principle of induction, the proposition is true for any natural number n (1,2,3....) .

QED

proofs by induction are a good way to practice basic proofs. Another common way is proof by contradiction (ex: show that there is no rational number r that satisfies r^2 =2)

>>8229036
There is only one way to get better at proving and that is doing it yourself.

It is something every person studying mathematics has to learn and the intuition you gain from it will be what makes you good at maths.

For starting out I would suggest doing very easy things like proving something like >>8229060 or some field or set properties.

>>8229010
>I read the space shuttle Atlantis travelled 126 million miles from 33 launches...
>But I didn't read how much fuel it consumed during these 33 launches
>can I draw fuel efficiency conclusions from this?
aren't you supposed to be huffing glue somewhere in the corner over there?

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>>8229015

.... Dude, the majority of rocket fuel in this picture is solid propellant, right?

Liquid fuel is much heavier, right?

Look how big a 4 million gallon tank is. Its fucking BIG. And if you drive a car that gets 30 mpg, you'd use muvch more than 4 million gallons to go 126,000,000 miles.

This is kinda my basis for my argument

The logical conclusion is we should all drive spaceships to save the planet and truly go green.

>>8229062
>The logical conclusion is we should all drive spaceships to save the planet and truly go green.
no

You are by definition not conscious if you are not perceiving anything.

>>8228925

What would keep you from perceiving your own thoughts? What would keep you from thinking?

If you're right, would having *less* sensory input make you less conscious? For instance, was Helen Keller less conscious than another person who was blind only?

>>8228931
I think you are just misusing the word "concious". You are not conscious when you are deep asleep.

>>8228875
Take your pedophile cartoons back to >>>/a/

>>8228883
I appreciate you.

Paedophile cartoons to >>>/a/ please.

>>8228823
what?

Just the US being biased.

>>8228823
Virtue signalling, step it up son.
Also this is more pol than sci

Sorry for the shit crop, I wasn't thinking

>>8228618
are you hacking them or buying?

>>8228729

Using school request system

>>8228574
I suppose that in most of Europe and us someone will knock you door asking why are you launching missiles

>>8228579
dude dont worry about it

But what I meant was just build the engine, not the entire rocket.

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>>8228574
>>8228579
Just wear a turban OP, and they'll leave you alone because it will be racist to follow it up.

>>8228506
wut

>>8228506
Yes, but only three more times

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>>8228506
We are evolving now.

>pic only tangentially related (sorta)

>>8228453
stuff

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>>8228453
Really makes you think...

>>8228459
>stock 4chan

I think it's a possibility but neither necessary nor desirable.

We've known how to immerse ourselves in games long before pseudo-3D graphics became a thing. All we've done ever since are incremental improvements in the presentation.

Why is VR underwhelming? Because it's too expensive, the content is lacking in quality and diversity and people quickly get used to it.

With each new gadget, we think it will make us happier, but that's a misunderstanding of how the human mind works. We were already just as happy with Final Fantasy 6 on the SNES as we will ever be with Oculus Rift.

The only thing that would actually make us happier is an innovation that targets how the brain processes pleasure and pain, and systematically improves the pleasure while reducing the pain. But such an invention would be universally condemned and banned by the parasites.

>>8228310
>I think it's a possibility but neither necessary nor desirable
>not desirable
Am I making my idea clear enough? It is a headset that literally stimulates a new reality in your head. You can be whoever you want to be, girl, boy, alien, superhero. You can do whatever you want to do with the full physical experience as if you were doing it for real: sky diving, sex, flying etc. And when you're done you can unplug. It'll be like the Matrix. It would be a cash cow. I see it as very desirable.

>We've known how to immerse ourselves in games long before pseudo-3D graphics became a thing
Yes but there's immersion and then there's 'immersion'. Don't imagine holding a controller with a VR headset, imagine actually being inside the game. That's what I'm envisioning.

>>8228316
>You can be whoever you want to be, girl, boy, alien, superhero.
We've had that for millennia, it's called basic storytelling and imagination.

>Don't imagine holding a controller with a VR headset, imagine actually being inside the game.
It's irrelevant. You're confusing authenticity with utility.

The point of entertainment is to have a good time, but we're all on a hedonic treadmill. The enjoyment of a 12-year-old playing The Witcher 3 is not higher than that of a 12-year-old playing Zelda 3: A Link to the Past, they're just used to better graphics.

Having "presence" in Kim Kardashian's ass doesn't make you feel more pleasure, only hedonic enhancement would make you actually experience more utility. That is, the only innovation to actually make you feel better would be to target your pleasure and pain processing in your brain and improve it in a sustainable fashion. Which of course, would cause an outcry and bans more so that violent video games do.

>>8228235
>Brilliant physicist, crackpot or both?
Yes

>>8228235
He gives good lectures, but he spends most of his time promoting his popsci bs, and nobody in the scientific community cares about him for that

>>8228245
Do you think there's any truth to that shit he was spewing about type 1, 2 and 3 civilizations?

>>8228110
>I'll explain.
Stopped reading.

>>8228116
Well good. That was the end of the message. You shouldn't keep reading after it's done

I'll show him anything you post. He says that animals were bigger because the Earth's rotation was slower, and that lowered gravity and somehow allowed animals to grow very large. I cant find very much on centrifugal force affected gravity greatly. This also means that the rotation of the earth would have sped up to the 21 hours it was 600 mya and then slow down again, right? I know that when earth got its moon was one time that it's rotation changed and can't find another time it did.

>>8228100
d) all of the above

>>8228100
We're machines, by eating more than is needed, we are preparing for famine. That famine doesn't come because we're in a perpetual state of surplus. (In the first world, at least)

People rape because they want sex/they get off on the pain/control of rape
People kill either because they get off on killing or because they gain something from it. (money, women, in rare cases confidence or attention)
They seek attention online because they want compliments/money/encouragement/discouragement

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>>8228100
How is this science?
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