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Archived threads in /sci/ - Science & Math - 637. page

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Post Beautiful Equations
31 posts and 5 images submitted.
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[eqn]1 - 1= 0[/eqn]
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>>8824911
Is that even true? The Maclaurin Series of a function does not necessarily converge to the value of the function for all values of x.

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30 posts and 3 images submitted.
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biology ->psychology -> sociology -> back to philosophy
It's a cycle.
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>Philosophyfags actually believe this
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>>8824608
Not an argument.

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>purposely use dumb as fuck bro language to perfectly describe subject matter and answer questions with professors/supervisors.
>their faces when
17 posts and 1 images submitted.
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>>8824523
I do the same thing brah
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>>8824523
Top lel I do this as well.
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>>8824523
woah bruh, chill out man! It's just language doing its thing yo. fo' real

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Lets say i have two metal hemispheres made of iron and they are fitted together like so and a vacuum is made inside of them by the air being pumped out.

Normally, atmospheric pressure would keep these two hemispheres firmly pressed together, but what happens if I were to take them underground in a cave like pic related?

Would it still be as difficult to separate the hemispheres or would there be marginally less atmosphere in this situation to keep them held together? Would they just fall apart as soon as i walked into this lower air-pressure area?
12 posts and 2 images submitted.
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Just depends on what the pressure is in that area.
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>>8824496
The water levels being equal indicates that it is 1atm inside your little alcove there also. It would take a very low pressure environment to separate the spheres assuming there's a good seal on it. Air at 1atm is 14.7 psi relative to vacuum I believe. You would need the strength to overcome that over the whole surface of the sphere. At 0.5 atm air would weigh 7.35 psi, still pretty heavy.
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>>8824496
It would be pretty much impossible to separate the hemispheres, if i recall correctly not even teams of horses linked up with ropes could pull them apart once a vacuum was established inside of there

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Would Rifling a coil gun affect accuracy or power in anyway?
27 posts and 3 images submitted.
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>>8824248
It could probably improve accuracy since spinning the projectile makes it more likely to stay straight in flight

However some tanks have these projectiles that have fins to direct their movement for which I think spinning doesn't really help them because it's a missile at that point
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>>8824248
Rifling improves the accuracy with longish bullets but not with spherical ones. It only depends on the shape of the projectile, not on what its accelerated by.
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It's impractical without a reliable power source.

I've been looking for this book for hours now. Genlib, bookzz, none of my usual ebook sources have it. Several university libraries have it (i.e.) Oxford but since I'm not enrolled in any of them it's of no use. If any of you are going there/have it somewhere I'd be thankful af.

The book is :Introduction to Neuropsychopharmacology
Authors:Leslie Iversen, PhD, Susan Iversen, PhD, Floyd E Bloom, MD, and Robert H Roth, PhD
ISBN: 9780195380538
Publisher: Oxford University Press
12 posts and 1 images submitted.
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Oh come on, noone on this whole board is attending Oxford???
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>>8824114
Oh god the prefixes
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interest bump

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There is no hard problem of consciousness, and if you think there is a hard problem of consciousness, I doubt you are conscious.
39 posts and 4 images submitted.
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In a battle to the Death between Dennett and Chalmers who would win? Maybe that's how we can settle this once and for all.
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Never heard of this before
Sounds like its just the result of us thinking we're more than just organisms and we can't grasp that fact
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There is a hard problem of matter, too. When you think about that it's a bit easier to see why there might be a hard problem of consciousness.

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Is there any scientific merit to the notion of alpha/beta/gamma males in humans?
54 posts and 3 images submitted.
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>>8823586
>Is there scientific evidence for social rankings on human societies
What do you think retard.
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>>8823586
Nah, that is just missbehaviour of wolfes in captivity. Not even wild wolfes have alpha and beta males.
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>>8823596
Social rankings and the concepts of alpha/beta/gamma male aren't the same thing. Alpha males in biology are males who have mating priority, usually having a harem of females with which they mate.

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Who cares about prime numbers? Like, how are they useful?
>divide only by 1 or same number
>whoa! so unique!
112 posts and 6 images submitted.
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>>8823223
Idiot. Every number is a unique product of primes. This means if your structure depends on an integer you can usually break it down into substructures which depend on primes, which are usually very simple.

E.g. classifcation of small simple groups, chinese remainder theorem, classification of finite fields, etc
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>>8823223
I don't do number theory, but in geometry SpecZ is the terminal object in the category of schemes.
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>>8823223
And you bothered to use a prime number too.

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How do you find the EXACT value of an inverse trigonometric function? What's the EXACT value of arccos(3/5), for example?
19 posts and 1 images submitted.
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Newton method
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>>8823040
Pretty sure it's irrational.

https://books.google.com/books?id=ov-IlIEo47cC&pg=PA21&source=gbs_toc_r&cad=4#v=onepage&q&f=false
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>>8823107
Kill yourself

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How long does it take to delude yourself, excuse me, to """school""" yourself, into believing this equality to be true? Do you have to use cult like methods?
83 posts and 11 images submitted.
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I wonder if this is a genuine question
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>>8822496
You don't think it's crazy to believe that if you keep on summing positive numbers you'll arrive at a negative number fraction?

Are you too that delusional?

Maybe you can then answer this question. And no, this is not a troll in the slightest. I just can't even begin to understand why anyone can think this way.
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>>8822501
once you take a complex analysis class you learn about analytic continuation

i'm assuming you're still a freshman, so just wait a while before tackling subjects beyond your comprehension

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Redpill me on CS and related directions. Why are programmers considered brainlets on /sci/ while mechanical engineers are more often treated like equals by math/physics people?
58 posts and 9 images submitted.
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BECAUSE PROGRAMMING IS MACHINE SLAVERY. MOST TIMES YOU DON'T GET ANY VALUABLE KNOWLEDGE NO ONE SANE IS INTERESTED ABOUT CHAR POINTERS AND SIMILAR CRAP
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>>8819922
>mechanical engineers
>treated like equals by math/physics people
you're very wrong. engineers are lowly faggots. the elite is pure math / math physics
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You're mistaken. Mech are the generally brainlets. I had a Calc 3 class full of dudebro Mechs and they made noise like wild apes and couldn't get the material.

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A zoologist is traveling through the rainforest when he is bitten by a venomous snake. He knows that only the female of a certain species of frog native to this rainforest secretes the antidote to this venom, on its back. He also knows that males and females of this species are in equal proportion, look exactly the same, but only the male croaks.

Luckily he sees such a frog a few meters in front of him. But then he hears a croak from a male behind him and turns around to see two frogs of this species a few meters away in the other direction.

Knowing he only has enough time to run in one direction and lick the pair of frogs or the lone frog before the venom kills him, which should he choose and what is his chance of surviving?
94 posts and 4 images submitted.
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I've always been shit at probabilities, but I think it shouldn't matter whether he chooses the first frog or the pair of frogs.

Regardless of which option he chooses, he still has the knowledge that one of the frogs from the pair is a male. At this point, there should(?) be an equal chance that either of the remaining frogs is female. With a total population of 100 frogs, we know know that either choice has a 50/99 chance of being a female.
Although,
>I've always been shit at probabilities
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>>8818581

This is good so far, but there's also the chance that he doesn't catch any frogs at all. In which case, it would be better to run toward two frogs, in case the second one is close enough if he can't catch the first one.
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>>8818581
You're correct about boyh choices giving the sane chance of survival, but for the wrong reason. And your calculation is wrong. You can't assume there are only 100 frogs, plus you're missing something big.

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>going to grad school for anything other than med
I'll have a large coke with that.
35 posts and 3 images submitted.
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>>8818418
>losing ten years of earning potential for a medical """"doctorate""""

shoulda gone to trade school
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>>8818418
Med is for gaylords.
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>>8818418
hahaha have fun with 10 years of being shit poor and overworked only to be certified to deal mostly with shit-for-brains normie retards that refuse to follow medical advice/common sense

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No text here
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>>8808927
It's actually a good question
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>>8808927
Each has 2 in denominator and 1 in numerator. Unsolvable.
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>>8808941
Thats the joke.

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