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Archived threads in /sci/ - Science & Math - 667. page

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0.999~ ≠ 1

And it never will....

infinitely.
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True, but I don't know what that tilde is supposed to mean. 0.999..., however, does = 1.
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>>8797338
its all about the last 1
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>>8797348
It's one way to display an unending repeating string. Also no. You will never reach your dream. It is mathematically impossible. Don't try using a glitch in our current system to justify it.

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So we've pretty much hit the point where we cannot stop a positive feedback loop from occurring and the Earth is going to continue to heat up, which will release more CO2 and Methane, which will heat it up more, which will cause more methane release, etc.

So what are our options now to stop runaway global warming and stabilize the climate of the planet? Is some kind of solar shade possible? How much light could we realistically block out with satellites?
199 posts and 31 images submitted.
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>>8795832
You familiar with the idea of carbon fixing? If we can build a massive enough system of apparatuses that somehow turn CO2 into a solid organic molecule without the extra stuff needed in plant-based carbon fixation we could drastically reduce atmospheric CO2.
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>>8795847
I am but it seems a bit far fetched to pin our hopes on organisms sucking carbon out of the atmosphere when we're in the middle of a great extinction event. The algae that use the carbon are dying out, not propagating, huge problem if your strategy to lower CO2 levels hinges on them.
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>>8795851
Methane release is the biggest problem I think. But to solve the increased CO2 levels which are causing methane sinks to release methane we need a way to artificially fix CO2 into a organic form on a mass scale.

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Post your questions that don't deserve their own thread in here.

Previous thread:
>>8784484

Is Homotopy Type Theory a meme? What role will it play (if any) in the future of mathematics?
317 posts and 45 images submitted.
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What does it look like to be standing in 3D hyperbolic space? Is it just like normal space, except groups spread out faster as you approach them, and come together quicker as you move away from them?
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>Is Homotopy Type Theory a meme?
Yes.

>What role will it play (if any) in the future of mathematics?
In mathematics, almost none. People like Lurie opposed it from the start.
But it will gather interest in European type computer science and hopefully push related functional languages.

PS: Just this week, one of the HoTT in Agda guys released his PhD thesis
https://www.cs.cmu.edu/~kuenbanh/files/thesis.pdf

>Milnor Edition
I really enjoyed this essay by Thurston
https://arxiv.org/abs/math/9404236

>8794935
Groups?
Anyway, remember that in general relativity, gravitational force is explained by spacetime curvature and that's what shrinking metric distance feels like.
Say you float in empty space far away from any other masses exect a guy 10 meters next to you. Then you both throw away you pants in the same direction, giving you both a parallel impulse in the same direction (exactly negative to where the pants are now moving). You'll move in what seems to be parallel for the longest time, but since you and the guy both have masses, spacetime curves so that the metric distance between you slowly shrinks until you touch each others. That's how gravitational pull is implemented geometrically.
So yes, on the negative curvature plane, you fall or roll towards other things, unless you exert force. Unless you exert force, you'll find you can't stay parallel (at equal distance)
>>
What are the biggest things to read up on going into Calculus 1?

Let us begin!

Electromagnetic
313 posts and 9 images submitted.
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niggers
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evaluate
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>>8790638
fluctuating

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So say you're not religious but open to the idea that some form of afterlife is a possibility.

Do you ever wonder if the way you die could have a theoretical impact on this? Let's say rather than our consciousness just shutting down along with our body, it was to expand into whatever comes next.

Well what if someone died by shooting themself in the head? Since we have no evidence either way, there's some grim possibility that blowing your own brains out could fuck this up, right? Or is there?
14 posts and 1 images submitted.
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>>>/x/
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>>8802832
>>>/b/
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>>8802828
>So say you're not religious but open to the idea that some form of afterlife is a possibility.
I said that?

*blocks your math*
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>>8802150
yellowed. Am I the only one who'd unironically suck him off just to get a taste of his superior chink dna?
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>>8802150
*drops class*
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You're in a bar and this guy grabs your gf's ass. What do?

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Question for the physics majors.

I have a steel bearing of perfect smoothness. I put said bearing in orbit of a black hole at speed c - infinitesimally small value (assume black hole is large enough to keep bearing from leaving orbit, right on the edge of the event horizon).
To an outside observer the bearing would move (nearly) infinitely slow.

To an observer inside the singularity (an alium in some super advanced ship) the bearing would instantly whizz by.

Let's say this bearing was melted by a laser constantly targeting it.

To the aliums a huge magnetic field is generated due to spinning liquid metal.

My question is simple:
To the outside observer is there a huge magnetic field generated as soon as the bearing is introduced to the orbit? Or is there a weak one? Or none at all?

If none at all that would mean magnetic fields have are relative to an observer

If a small field is produced we can assume that magnetic fields have a finite energy output based on time

If a large field is produced can we assume that a magnetic field has infinite energy over time?
13 posts and 1 images submitted.
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>>8802103
>that would mean magnetic fields have are relative to an observer

Yes, that's exactly what they are.
>>
>>8802115
So if I had a planet in orbit around a black hole at radius X from the center and I placed a solar array with wireless transmission at 10X could I generate a larger amount of power per unit of time on the planet than if they were both at position 10X?
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go back to >>>/pol/ you nazi

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In this video Elon's """lover"" admits she is a golddigger and Elon is obviously very awkward socially/romantically. This seems common past a certain intelligence threshold. Is there a scientific link between high intelligence and social awkwardness/lack of dating prospects?

https://www.youtube.com/watch?v=B2wRvhbJIQQ
11 posts and 3 images submitted.
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he's to intelligent too interact with plebs
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>>8801713
Considering most major geniuses throughout history, male and female have had either HFA or Asperger's syndrome and both of those come with 'social awkwardness'? Yes, yes is the answer to your question.
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>>8801713
>>8801896
>>8801900
Correlation does not imply causation.

Social skills can be developed with practice like any other skill, they just spend more time doing their thing than socializing or doing the romantic thing. Although autistic people can me the exeption.

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What's stopping us from making a physics simulator simulate a brain?
Is it too difficult or is our hardware not powerful enough? Are logical processors incapable of emulating this? Would quantum processors help?
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What you're thinking of are artificial neural networks, it exists
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Consciousness arises from unexplained quantum effects which we can't attempt to simulate unless P=NP or we create a generalized quantum computer large enough.
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>>8801151
Because the properties of consciousness are emergent and are not reducible to physics. Reductionism is the pipe dream of physicists. Until we have good models for the interactions of neurons, we cannot hope to simulate a brain.

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>hour long exam
>student turns it in after 10 minutes
>2/3 of the exam completely blank

Why do people do this?
14 posts and 1 images submitted.
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>>8800736
...ppl do this?
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>>8800736
People don't study and don't know the answers?
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>>8800736
They just "give up". That's all there is to it.

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>conservation of energy is real
>somehow the earth is getting hotter

sci btfo
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Earth is not a closed system
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>>8800490
>>
by allah you people are dogs

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How can a sun be made of ice? Wouldn't it melt?
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Well say that they are eaqual in mass.
Ice sun is 0c +- 5c
Lava sun is 5000c +- 5c

And temp is 2500c +- 10c

The result would be lots of steam, and a slightly cooler lava sun.
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>>8800357
If it's blue. That does not mean it's ice
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>>8800388
Ice is blue you fucking retard. See attached picture

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Is it time to admit physicalism is wrong and that consciousness cannot be explained purely by the physical brain?

https://blogs.scientificamerican.com/guest-blog/transcending-the-brain
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If you're talking about the consciousness of people that are not me, then no. But if you're asking why I see the world through my eyes and not anyone else's, then I don't know.
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>>8800268
Because your soul inhabits that body
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>>8800266
>>>/x/

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One day I'll detonate this fucking planet by introducing an array of satellites that harvest sunlight and electrify the atmosphere. Then several dozen oxygen tanks/igniters will be sent straight into this piece of shit.

Discuss the implications /sci/
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>>8800115
I'll detonate ur anus first, homo
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>>8800120
That isa more probable burn OP
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>>8800120
>>8800123
>Thinks this is a joke
Keep laughing, faggots

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What's the science behind wanting to kill yourself?
18 posts and 1 images submitted.
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>>8799567
No pain>pain

But also that most problems are situational and have solutions which is realized in intense moments such as jumping off a bridge....
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>>8799569
Actually pain IS JUST a part of life.
Suffering however, is optional.
>>
>>8799582
Wrong

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