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Archived threads in /sci/ - Science & Math - 1259. page

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Is medicine a meme?
12 posts and 3 images submitted.
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>>8455453
Yes. Yes it is.
Galen is the Lord of meme-lords.
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Yes Tbh I rely on the glory of the Lord to heal me instead
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>>8455453
Sage

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What's the /sci/ view on GMO's?
36 posts and 4 images submitted.
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The factual one. It's fine. We've genetically engineered food for thousands of years already.

Patents and shit is a separate issue however.
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It's like any other food, just better.
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>>8455444
By GMO OP obviously means taking genes and segments of DNA from one species and putting them into another species. What we have been doing for thousands of years is artificially breeding plants and animals for select traits we desire instead of leaving them subject to natural selection.

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>lab has 9-2÷1/4+1 beakers
12 posts and 2 images submitted.
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>>8455364
2 beakers?
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>>8455364
how do you have half a beaker?
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>>8455364
Why would you use both ÷ and /? It's retarded

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how do i stop fucking up my exams
14 posts and 1 images submitted.
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>>8455322
increase you're IQ
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study
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>>8455322
Studying and if that doesn't work, give up and learn to live with not-so-good grades (ps. You don't need high grades to becomea scientist)

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Are MD-PhD programs a meme?
35 posts and 5 images submitted.
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>>8455282
>is x a meme
>thinly veiled frogpost

Shitposting retard.
Saged and hidden.
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>>8455282
Longest and most expensive pathway to a paycheck in human history probably, but at the end of the day probably a better career than normie medicine.
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>>8455308
>too autistic for board culture
>too much of a brainlet to answer
>breaking global rule 7 with le sage le downboat

Funny you say that when you just crawled out of your reddit safe space.

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What's does /sci/ thinks of spirit cooking and the latest wiki leaks shit saying Hillary is involved in satanic rituals? Come on it can't be true r-right? I'm that kind of guy that if I saw this I would just say go back to >>>/x/ and every part of my brain is screaming that that's a false flag that's there's no supernatural phenomena and that I'm a faggot for thinking that shit is possible. But I'm kinda scared this shouldn't be happening to me. I'm a physicist for gods sake.
13 posts and 2 images submitted.
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>>8455249
don't you have a /pol/ thread to be roleplaying in
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Orgy island sounds very plausible, occult stuff sounds like people decorating the truth a little bit.
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>>8455292
Yeah that must be it. Still scared of this shit. Fuck I'm solving some integrals before going to sleep.
Godspeed everyone.

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One famous one is about the claim that a set which has more elements then the natural numbers but less then the real numbers.
It has been proven that it is impossible to construct such a set but it is also impossible to proove that such a set does not exist.

To elaborate further:

If you are not familiar with the idea of sets they basically represent a "bucket" which contains "things" called elements.

If these "Buckets" have finite elements there are two ways to compare how many elements.
You could could count the elements and compare the resulting numbers or you could take one element from one bucket 1 and put it together with one element of the other bucket 2 and if you do that for all elements and every element from bucket 1 has one element from bucket 2 assigned you know they have equally many elements.

This idea also works infinite sets.

For example you can find for every number {1,2,3,..} an even number {2,4,6,...} so you say they have the same "size". (This might seem counter intuitive but is actually part of the nature of "infinity")

It turns out that the natural numbers and the rational numbers have the same "size" but that is not true for the natural numbers and the real numbers.

The Question arises if there is a set that has more elements then the natural numbers and less then the real.
12 posts and 2 images submitted.
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Can somebody explain Godel to a pleb like me?

I'm a physicist, not a mathematician.
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>>8455213
tl;dr some math statements (theorems) involving numbers cannot be proven or disproven under certain axiomatic systems.
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>>8455352
But people say

>"There are true statements that cannot be proven"

How can it be that a statement is true and not provable?

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hi guys this is the first time I come here so I'm sorry if it's against the rules or something, but could you confirm me if the answers are correct for each question?

this is an exam from last year and I wanted to see if my answers are correct since I don't trust whoever did it first.
7 posts and 2 images submitted.
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>>8455154
No source voltage?
What is V_f or V_t or V_+ or whatever that means
V_R2 = V_Z obviously
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>>8455178
Vf = source voltage

why is Vz = VR2? the zener is inteverted
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Of course it is inverted, that's the principle. It's in parallel to R2.

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Caltech researchers have found evidence suggesting there may be a "Planet X" deep in the solar system. This hypothetical Neptune-sized planet orbits our sun in a highly elongated orbit far beyond Pluto. The object, which the researchers have nicknamed "Planet Nine," could have a mass about 10 times that of Earth and orbit about 20 times farther from the sun on average than Neptune. It may take between 10,000 and 20,000 Earth years to make one full orbit around the sun.

"The possibility of a new planet is certainly an exciting one for me as a planetary scientist and for all of us," said Jim Green, director of NASA's Planetary Science Division. "This is not, however, the detection or discovery of a new planet. It's too early to say with certainty there's a so-called Planet X. What we're seeing is an early prediction based on modeling from limited observations. It's the start of a process that could lead to an exciting result."

https://www.youtube.com/watch?v=jy6JcViPkWg
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>>8455105
Plow twist
Its a black hole and it's going to kill us :^)
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>>8455105
If planet X exist, would it be more likely that it would be something from outside our solar system captured by our sun or a planet that got shot way out there
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Nibiru is coming

what did I do
6 posts and 1 images submitted.
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>>8455038
[math] \exp\left(\frac{1}{x}\right) = \exp (x^{-1}) \neq \exp( - x ) [/math]
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>>8455047
lol, thanks. I'm a dingus. Guess I'll be deleting this so as to not pollute up the board.
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>>8455047
>>8455038
what is this, are you doing this in university op ?
i was doing this shit in 10th grade. please tell there's more to uni that this, or i'll go straight into pure math, even if i fail it

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Serious question:

How could you use virtual reality to solve mathematical problems?
12 posts and 1 images submitted.
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>>8455010
Simulate synesthesia
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what mathematical problems....
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>>8455015
Any. E.g. number theory problems.

>>8455014
Seing colors? Do you have a concrete idea how that helps solving something?

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what happens to an object when it enters a black hole
14 posts and 1 images submitted.
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If it hasn't spaghettified it will keep falling and eventually spaghettify.
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It stumbles into an alternate dimension where everything is super fucking gay
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>>8454964
So, your bedroom?

does this crap blow anyone else's mind? imo bayesian neural networks are the coolest thing since sliced bread.

>Having recovered the latent manifold and assigned it a coordinate system, it becomes trivial to walk from one point to another along the manifold, creatively generating realistic digits all the while

http://blog.fastforwardlabs.com/post/149329060653/under-the-hood-of-the-variational-autoencoder-in
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no, but im mentally handicapped so i dont rly understand it tbqh
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What is this?
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>>8455247
it's the process of using neural networks to uncover the latent manifold on which some collection of data lies, once you have said manifold you can do things like hop around on it and sample fake data that closely resembles real data.

for example, here are some generated images of bedrooms from a bedroom manifold.

and here's a paper that improves superresolution techniques by projecting an enhanced image onto a manifold of natural images
https://arxiv.org/abs/1609.04802

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You know, looking at this picture you can't help but think that in at least 1 galaxy there's some alien civilization, probably advanced enough to go around planets and starts (via cryostasis or whatever) and establish colonies.
Humanity one day might do the same, it's fine. Thing is, we're never going to meet aliens, it's just too unlikely. Crossing galaxies is going to take a fuckton of years and even then, when you arrive, the galaxies are absolutely fucking huge. And the inverse square law is such a bitch and makes radiowaves decay so quickly its never going to be close enough to pick up.
18 posts and 3 images submitted.
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>>8454901
It's not a bad thing to not meet aliens. I personally prefer a scnenario like Asimov's Foundation where the galaxy is exclusively inhabited by humans, so much easy.

Aliens are not safe. We could be ants compared to their intellect.

I agree with you about intergalaxy travel, too complex.
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If we make something that can go fast enough for trips throughout the galaxy to be reasonable, sending probes to other galaxies will probably follow within decades.
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i disagree. if the universe is never ending and that means that somewhere out there in time is smart enough to travel at the speed of light at all times.

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>The man who knew infinity
63 posts and 5 images submitted.
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>>8454892
>dies probably earlier than any other scientist
>mfw his formulaes still solve problems on black holes and cosmology
gg
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*came relatively near to without reaching infinity
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>>8455096
fml

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