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science/math .gif thread post your shit you un-evolved apes!

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Thread replies: 241
Thread images: 83

science/math .gif thread
post your shit you un-evolved apes!

normal static images also excepted!
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File: 1392346255615.gif (2MB, 800x600px) Image search: [iqdb] [SauceNao] [Google]
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Al + Hg.gif
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>>6597382
what gas was in that container?
>>
>>6597427
Das wut I finna kno
>>
>>6597427

sulfur hexafluoride is a pretty solid guess.
>>
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>>6597427
>>6597444

sulfur hexafluoride
>>
you guys should put a link to explanations, I think
also, move to webms already... you can download webms from youtube with youtube-dl
>>
>>6597549
reverse image search is a good way to find out, it will likely link to blog entries with explanation provided.
>>
>>6597374
fucking Russians.
I tried this with a car battery (my understanding is that that copper is a wire) and jack shit happened, so it must be hooked up to significant voltage, or maybe I was wrong
another possibility is >photoshop
>>
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>>6597376
Immeasurable feels
>>
>>6597573
heh, this comment kinda reminds me of this documentary I watched recently:
https://www.youtube.com/watch?v=TMbl_ofF3AM
>>
>>6597445
>>6597447
and why not just use co2
>>
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>>6597384
I didn't realize two galaxies colliding would be this violent
>>
>>6597763
Because aluminium is heavier than CO2?
>>
>>6597376

>implying we won't figure out how to move the earth away from the sun within thr next billion years
>>
>>6597384

If galaxies are 99.99999...% empty space, how does this happen?
>>
>>6597850
Its the gravity of the situation..
>>
>>6597850
>things that don't touch acn't interact witch eachother
u wot m8?
>>
>>6597850
Does it really dark matter?
>>
>>6597374
>>
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>>6597573
its an extreamly high voltage, there is no way in hell you were ever going to get eny where with the voltage of a car battery

also why "fucking russians"?
>>
>>
>>6597783
>I didn't realize two galaxies colliding would be this violent

I wish I could reduce that to something absurd, but I guess that's already as funny a sentence as it gets.
>>
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>>6597573
That's because batteries are DC voltage.
>>
>>6597771

Supersaturated sodium acetate?
>>
>>6597846

Why would we want to move the Earth, even with the technology to do so? Its only oustanding properties are its location and electromagnetic field.
>>
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>>6598116
I think it's supercooled water.
as soon as it finds a site to start growing crystals it can finally freeze.
>>
>>6597376
the continents are drifting the other way around. The Americas are going to hit asian, not crunch back with Africa and Europe.
>>
>>6598513
there is supercooled water that looks remarkably like that, though. you can find plenty of videos of it on youtube, it's really trippy looking.
>>
>>6597995
"At 13.2 degrees Celsius (about 56 degrees Fahrenheit) and below, pure tin transforms from the silvery, ductile metallic allotrope of ?-form white tin to brittle, nonmetallic, ?-form grey tin with a diamond structure. The transformation is slow to initiate due to a high activation energy but the presence of germanium (or crystal structures of similar form and size) or very low temperatures ~?30 degrees Celsius aids the initiation. There is also a large volume increase of about 27% associated with the phase change. Eventually the ?-form decomposes into powder, hence the name tin pest.[3]

The decomposition will catalyze itself, which is why the reaction speeds up once it starts; the mere presence of tin pest leads to more tin pest. Tin objects at low temperatures will simply disintegrate."


Neat. I learned something new today.
>>
>>6597573
>my understanding is that that copper is a wire
>my understanding is that that copper
>my understanding
>understanding

anon, what you see is called an "inductive heater"

use the internet for something other than porn and you can learn why that metal "levitates" and then melts. it's not hard to do IRL once you learn a few things you could cobble one together for a weeks wages or less
>>
>>6598561
A winrar is you!
>>6597374
The material pictured then must generally have a high relative permeability, and a magnetic phase transition at its melting point.
>>
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>>6598688
pretty
>>
>>6598606
>>The material pictured then must generally have a high relative permeability, and a magnetic phase transition at its melting point.

or you know it could just be conductive
>>
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GODDAMNIT BUMP
>>
BUMP OR COCKSLAP
>>
>>6597853
underrated post
>>
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more math gifs like this pls
>>
>>6600438
it's fucking incredible how distinct the three positions of the are and how almost jerky the CF1's conformational change is. this shit amazes me without fail every time
>>
>>6600487
It's like someone combined Burgertime and Frogger.
>>
>>6597414
What did he just mix?
>>
>>6600798
KI H2O2 and Soap I think
Google elephant Toothpaste
>>
>>6600487
>>
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>>6600818
hurr durr forgot to attach
>>
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>>6600487
one of my favs
>>
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>>6598561
>wages
>from working
>>
>>6600821
what is and why should I care?
>>
>>6597834
that's not how it works.
Aluminium is still heavier than sulfur hexafluoride.
it's buoyancy
>>
>>6597771
Ice nine?
>>
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>>6601248
lmfao
Mad props
>>
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>>6601262
What's this?
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>>6602462
pV=nRT
>>
>>6600824
i dont ge it
>>
>>6601260
Interesting but how does the bacteria know to get away?
>>
>>6602482
all cells are pretty much constantly throwing off chemical signals and proteins

it's probably sensing one of those and moving down the concentration gradient
>>
>>6602478

It's a graphic illustration of how to build 2d traveling waves out of oscillators with a phase lag.
>>
>>6602465
aka ideal gas law if you're exceptionally retarded
>>
>>6602502
[spoiler] i am sofa king we todd ed [/spoiler]
>>
>>6598956
>Implying conductivity is the basic mechanism between coupling a magnetic field to a medium
It is a good indicator, though
>>
>>6601259
coffee_shits.jpg
>>
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i'll dump what i got

>filetoolarge
fuck
>>
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>>6602665
mostly math
>>
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>>6602671
thank god for 4chan pass

fuck cooldown timer
>>
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>>6602674
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>>6602727
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>>6602728
damn, these are mainly pretty lame
>>
>>6602731
>>
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>>6602737
>>
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>>6602741
i remember in classic mech 1 we had to do a double pendulum. hated that class during but now i miss it.
>>
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>>6602743
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>>6600821
what's this?
>>
>>6602727
OH MY GOD IT MAKES SO MUCH FUCKING SENSE NOW!!
>>
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>>6602747
>>
>>6602756
What are you, 12?
>>
>>6602768
posted without looking. must've thought it was cool a couple years ago or something.
>>
>>6602768
>implying

Okay, anon, Okay. I realize that I'm drunk, but fucking seriously:

What the fuck is wrong with you? "What are you, 12?" Are you serious? What are you? Pompous? Don't you realize that there are people in the world who aren't exposed to "science and math" as something that is "good on this earth"?

Don't you realize that every little bit of exposure to the interesting things that humans do is good for our species?

What are you? Fucking 12? Do you have to shun those who know less than you?

Seriously. Fuck you, anon.

Instead of sitting there on a Friday night complaining about a gif which explains what radians are graphically, why don't you go and fucking tutor someone who has never solved for tan(x) = .707 instead of complaining that a poster isn't rigorous enough?

Or, perhaps, if that isn't your thing -- why don't you just go fucking jump off a cliff instead of impeading knoweldge.

You are the problem, anon. You are the cancer. Not just the cancer killing /sci/.

The cancer killing humanity.
>>
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>>6602753
?
>>
>>6602768
>people younger/less educated than me aren't allowed to appreciate science
>>
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>>6598136
>I think it's supercooled water.
I think you're wrong.
>>
>>6602756
>>6602778
Different anon here. If it's any consolation, I learned from your pi*rad gif. Truth be told, I don't think I ever had a good high school math teacher. Ever. It's been years since the section on radians, and when I had it, I pretty much just memorized answers. Thank you for posting the gif to show me how the math actually works.

Sincerely, thank you for your contribution.
>>
>>6602768

arsefucks like you are usually losers or pakis.
>>
>>6597853
>>6600450
verily
>>6597384
very unsatisfactory, a lot of things happen ater the initial collision
>>
>>6602665
Completing the square will haunt me for a long time.
One of my exam questions had a part to do with it and I completely forgot how to do it when there is a coefficient of x^2.
>>
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>>6603013
I believe I was the one who found it elsewhere on the interwebs and brought it to /sci/ for repost after repost.
also google agrees with me
https://www.google.com/search?tbs=sbi:AMhZZitY1dX62T8DpgAL48avER3fdc2I88DsbD4L3aqdPUfBKvIaGM3ZQskxSY0l7U6FYdPZw8_1q-4IepvWwO8P3myk8zLm7OtFQpfgISpDaxBtcbn71JIjtkaMJg2tbF3GBgzca8rjOqXkdfOd20dJdFvWDbNLDBF2WA4yNI4bMjGo0hn-rHGSRPAyKtgxa-k9w2RqlFeWm06zLy2IIrNn6tREjd7NQh4JBFktM1QvRLotxLw4cIgezwoWekpFDDjF1MevymvpqBHYPzpDrr6VbjoiHuFSIyeSk_1DVC2CnKweT_1CXPJd-h7YKrWNOW8_1AP8aESYXNSPQJCu2rLbN9GqT0q_1E9iTJFkg_1QUZv2X-653Ws-9wyHSaNvRkdNpA98fouHNXsmWOy-stpJhNflj04zTXNNxbN0B5DHg_1ilFWbB_1K1VlCSRLJNow3uN0DwheYXdg4tFd_1UIc9SjIfJDGT-nYWqhfLI8AWvuLU2KvmvNRaSXq0aBnaqoaLZeOjJbz9j-gO1J6hl0PE5NkphQftbLgGtD53wfH_1t3X2uJUqx6fd6VTDXTvdHSztInHoWWS3WttWOOaTpkW-zM_1gAsK3fDAPFkRiECwzUM-FjgPY2pNEdmi1p3S1OdCEdatySSbUszioAA6tOOTkfWxd3TQ7QwUohvuDmNU8b8UMZgTAo1Iy-0DF0P-2Pmg-dYbU0CYH2pzX9CZ52bSnNuP3TwAZ98e_1gOCRqGRSihmQes2PIWxdmf4myxklMSbO0yxeLKfdTdPWj2qmQ7l_1vpRhXxD4Dvm3tYFDqisnlkDSfy0Q11RxVHtTk0s_11xz4TK9XL_17C1lQ0FdHWcKpzA6oik28Y1kiFUr9OGPdWn5q4jeNZTNqMCdxGu8rJSJJMv5ZGhz9sfPXKVedaFUqc5Rf54dQrhjZbHa95g85CcrB35w9sNHiukzuRLWCirGrUubnXIqeb6JtVePX_1V6HeRwgbr9lIb86ZDdd0RrlTQALb3WLfmm8OsbsiJzyaEB2VxGhRePjEsnZPDpGMQ1uBOdzf8_195Ty_1oQ2wVXAK11xRf-iHCS0Xe-KREJaTQudKRyT6G65D7YLaT-yA-QrwsZUGYa1iD7jr0Pg9iNTBQ2SlECZzMIZ0O-ST9mMYKVNyK256vZ531Q66XNjvzsxKnWRVuMqYORy_1DKPDWaarZKfb_1EAmRZSOu2V3ZB7EQe4IAybDH0Ur_11wKkLzO8OesCX_1xbAz2KcNyJTtfufsrbEIHkghD0AUPYoRxaTUAVSa_1HTLPFJbFO2qwd1WBHf9H9qCJg4E02NQ5T_1J89IcrYexn_1cfIpNeRsMwKII-cUDavNgJ1zwXicRLoGUWf1pLqzEJAjtAxwGOACKrwn2Q
>>
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>>6604118
bigger better version
>>
>>6604135
>that pic
holy shit

that is, hands down, the greatest optical illusion I've ever seen.
>>
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>>6600438
more biology stuff please!
>>
I'm sure I've seen that exact same thread with those exact same gifs posted about a month ago
>>
>>6604135
all my wuts
>>
>>6597378

Gallium ?
>>
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>>6604187
mercury attacking aluminum
>>
>>6602741
>2d printing gone wrong.jpg
>>
>>6597549
this thread is awesom, but as I wrote hre, I'd prefer webms... and more to my argument: you can stop and rewind webms.
>>
>>6602756

came here from /fit/, think I learned something now, brah
>>
>>6597850
You are this much empty space as well. Tell me.
>>
>>6604192
>WTF!?
>SHIT! SHIT! SHIT!
>>
>>6597374
>un-evolved
>apes
>yep, I understand evolution
>>
>>6598125
Keep in mind that hoarding exists. SOMEONE will want to keep the Earth.
>>
>>6598317
That's not how plate induction works. The Pacific Ocean won't close.
>>
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>>6597934
>>
>>6601054
I'm not completely sure, but it's a self-propagating wave, at the very least. It could be a visual representation of the oscillations of a photon, for example.
>>
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>>6604950
>Not turning it upside down and launching it

sad, really.
>>
>>6604147
>>6604118
So why the hell aren't we using LFTRs right this second? If even half the statements in that picture are true then its ridiculous to not use thorium over traditional nuclear reactors. Actually, it's worse than ridiculous, it's irresponsible and imbecilic
>>
>>6605069
The gas would pour out.
>>
>>6605072
Uranium reactors are better understood from an engineering perspective. IIRC china is researching LTRs at the moment. But also, no one is really happy about building nuclear plants.
>>
>>6598136
If I recall correctly, it can be done with supersaturated solutions of some salts, like sodium bicarbonate and sodium acetate.
>>
>>6597376
this
>>6598317
America and Europe are moving apart

>>6597376
>muh intelligent design
>>
>>6605089
>china is researching LTRs
>no one is really happy about building nuclear plants
I guess in some ways its better when the ignorant masses don't have a say in what goes on. It frustrates me to no end that all these people with zero understanding are keeping us from such a better energy source. Maybe nuclear isn't the end all be all of power sources but its a hell of a lot better than what we currently use
>>
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>>6598688
>dat hexagon
>>
>>6598927
fugg :D
>>
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>>6605159
How is such a picture created
>>
>>6605407
CT scan ?
>>
>>6602671
Line Integral right?
>>
>>6601192
>Boats don't work. Steel is heavier than water. It's bouyancy.
>>
>>6605159
its a MANG, baby!
>>
>>6602482
Cytokines.
>>
>>6605407
Slides of a deceased person innit?
>>
>>6605564
Not necessarily, looks like CT to me.
>>
>>6605436
Yup.
>>
>>6602665

Completing the square. Love how that was visually represented.
>>
>>6604192

Rekt
>>
>>6602671
Is there something similar for surface integrals?
>>
>>6605828
it's literally the exact same thing just in two dimensions.
>>
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>>6605838
Yeah I guess I don't conceptually understand surface integrals.
>>
>>6605159
looks like he's hung like a horse
>>
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>>6600438
Can we turn this into a tiny motor?
>>
>>6606713

Sure, once we have the ability to manipulate things on such a tiny scale.
>>
>>6606713
it already is a tiny motor
>>
>>6604164
/au/
>>
>>6606716
Can't we?

>>6606717
Let's use it!
>>
>>6605072
LFTRs are part of the Gen IV nuclear reactors, which means they're only in the design stage right now, there hasn't even been a prototype developed. Gen IV reactors are expected to become commercially available in 2030, so comparing LFTRs to LWRs or SBRs - reactors that were built in the 60s and 70s - is comparing apples to oranges. In fact there are Molten Salt Uranium reactors that are equally viable as the LFTR and there is a Traveling Wave reactor that uses depleted uranium that is imho so much safer because all of the necessary uranium for the next millennium has already been mined and is being stored in holding tanks, and will only need to have its fuel replaced every decade or so, compared to the LFTR of I think 120 days, that seems to be the standard number of a molten salt reactor but I have no idea.
>>
>>6606720
we are alreay using it
>>
>>6605846

I didn't understand surface integrals until I found an application for them.

Imagine a steel plate in a magnetic field - you don't care about the volume of the area beneath the plate (Which is what a double integral would give you), you care about the sum of magnetic field lines that intersect the plate (Because that's the first step to finding out how much current will be generated if you move the steel plate).

The math is approximately well-explained here:

http://tutorial.math.lamar.edu/Classes/CalcIII/SurfaceIntegrals.aspx

(Also, I am amazed that page still exists. I used it when learning about Laplace Transforms back in... 2009? The internet never forgets.)
>>
>>6606745
Not him but is a surface integral essentially summing each point in the surface, weighting them according to the corresponding point of the integrand?
>>
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>>6607049
this can't be true
>>
>>6607049
Wait, they stole him Mentos?
>>
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>>6605407
You take a dead guy, preserve them, and slice them into many thin slices while taking pictures.

At least, that particular image. Most things that look like that are actually just MRI scans.
>>
>>6601259
I imagine the coffee trying to uppercut someone for saying something stupid.
>>
>>6605588
No, I've seen the origin of that particular image. It really is slices of a dead guy.
>>
>>6608089
Artichoke?
>>
>>6602731
I don't know man, they're pretty damn nice to look at.
>>
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>>6608122
>>
>>6607049
>"something so simple a chimp could do it"
My fucking sides have achieved cold fusion
>>
>>6607054
Won't that blow up immediately? Could really only be used as a mine
>>
>>6608167
look at the top of the diagram
>>
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>>6608140
wat is?
>>
>>6597850
Same way that atoms are mostly empty space but are able to exert forces on each other.
>>
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>>6608194
watermellon
>>
MORE!

For the love of Jesus Science, MORE!
>>
>>6602489
are there any real word applications?
>>not bate
>>just dumb
>>
>>6602778
How do you solve tan(x)=sqrt(2)/2?
>>
>>6608140
Watermelaun
>>
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>>
>>6606720

Did you ever wonder, how are you even moving? Where, do you think, this energy comes from?
>>
>>6608440

is it hydrophobic? i dont get how it works.
>>
>>6608457
yes it is hydrophobic
>>
>>6601260
>mfw they used this exact gif during first year bio
>>
>>6603013
I know the exact video showing the same thing, as well as the origin of at least 3 of the gifs here
https://www.youtube.com/watch?v=sQdLttUh_b0

It's just plain supercooled water
>>
>>6605407
Looks like he leans slightly to the left...
>>
>>6608457
The sand is covered with a hydrophobic substance. I don't believe that the sand is special.

>is it hydrophobic?
Damn, did you guess that all by yourself? If I had seen this gif before ever learning how it works, I would have assumed it was magic. If that's the case, bravo, anon.
>>
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for those geometrically challenged out there
>>
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>>6597853
this post has nourished my weary spirit
>>
>>6602747
>>6602741
>>6602731
>>6602674
im curious as to what these explain, anyone care to explain any of them?
>>
>>6597376
I thought that when andromeda passes through the Milky Way there would be too much space between space between each star for any damage to be done solar systems in either galaxy. Though I may be mistaken.
>>
>>6609456
well there are billions of stars in each galaxy so there is a high chance that things could go crazy, it would be weird if nothing happened.
>>
>>6609449
first is swing atwood machine
second is double pendulum
both are chaotic systems
>>
>>6609470
as long as we don't get flung to a dense part of either galaxy we wouldn't notice much
>>
>>6609480
that's true, but something would still happen either way.
>>
>>6609475
thanks for the info young blood, any idea on the third and fourth?
>>
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>>6609484
we don't notice any interactions with stars in our system.
we wouldn't notice andromeda either.
>>6609488
third is a 2d wave.
fourth is pretty self explanatory. do you know any trig?
>>
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>>6609516
>>
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>>6609516
sadly i havent into trig yet. im pretty mathematically impaired

care to explain?
>>
>>6609535
Well that explains why you don't get the fourth one.
sin and cos are two trig functions or functions that have to do with right triangles (a triangle with an angle that is 90 degrees).
They map an angle to a ratio of sides. The gif shows how the two functions change with changes in the angle
>>
>>6609540
okay i seem to understand a little more now thanks.
>>
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Mitosis
>>
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>>6609639
>>
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>>6609639
What a overcompensated buildup
>>
>>
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>>6609752
>inb4
>>
>>6605839
Carbonated soft drinks. Not even once.
>>
>>6609778
only colas and rootbeers. a&w has none but that's why it's shit root beer.
>>
>>6609778

I drink my cans of soft drinks through a straw

>inb4 harmful chemical coating inside cans
>>
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>>6609778
I don't hold soda in my mouth for a whole day.
>>
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>>6609984
reminds me of this
>>
>>6609765
>maybe they can jettison
>>
>>6597376
me gusta
>>
>>6597376
They say 100,00 years is the minimum it would take humanity to colonize the galaxy with some level of feasibility
In 8 million years, all or most of the C02 in our atmosphere will have left Earth, making photosynthesis impossible anyways
When Earth becomes a desert do to the warning of the Sun, our solar systems habitability zone will shift towards Mars, making Mars a paradise for humans and should last us an extra billion years
If the TOE is correct, protons themselves will decay in several trillion years, making matter will be impossible
If anything else, protons will just decay into neutrons and can easily change back into protons
If science fiction writers and speculists are correct, humanity may some day prevent the death of the universe with our superior technology in the far future
>>
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>>6610726

>you won't be alive by the time they figure out immortality
>>
>>6610747
>you will die before the "Age of Galactic Exploration"begin
>You will never be a lonely cabin boy for a galactic trading company traveling through space and to all the colonies on grand adventures
>born too late to explore the world.etc
>>
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>>6610756

>you will die before they figure out how to install your brain in a hot grill's body

Why do I even bother being alive?
>>
>>6610762
>dem toenails
absolutely disgusting
>>
>>6610762
We can already do that dummy, just get sex change surgery and get lots of HRT and you'll pretty much be an actual girl
>>
>>6610747
You never know anon, what pisses me off though is scientists are pretty much saying "We pretty much CAN find the root causes of natural death, but we wont because overpopulation"
Why are scientists such sociopaths?
>>
>>6610772
no...you wont...
>>
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>>6610784
>Vagina
>Female hormones
>not a girl
Pic related
>every fucking time
>>
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>>6610790
>>6610762
>>6610756
>>6610747
:why:
>>
>>6610756
Idk, of all the times in history it is probably best to be alive right now. Sure, if you are rich and powerful centuries ago, you could explore the world, but if you are poor though shit, you would die young and live a painful life.

Who know, in 20 years there could be a war and civilisation collapses. We might just be living in the best time in history.
>>
>>6605072

uranium LWR got so widespread because they had military applications in a cold war world, ie making weapons grade material.

LFTRs really are that much better, were just still stuck with the cold wars nuclear legacy.
>>
>>6608140
those spirals
>>
>>6611252
No, LWRs got so widespread because they're straightforward, can be made of cheap materials, are based in the very well-understood engineering of steam turbines, and don't have as much potential to go horribly, horribly wrong as something like graphite-moderated reactors.

LFTRs were mostly in competition with LMFRs (liquid-metal fast reactors), as compact, high-power-density breeder reactors for long-term independence of naval vessels, and LMFRs won because they were cheaper, more compatible with existing infrastructure, ran on cheaper fuel, and generally worked better.

Attempts to scale up LMFRs from naval reactor to power plant did not provide the expected economies of scale. Instead, they found that the corrosive molten metal provided unending headaches in a large reactor. The even more corrosive molten fluoride salts in an LFTR would be even more impractical for economical operation. Hot water's much easier to deal with, or at least we have centuries of experience with it, so we're very good at it. Now proposed fast reactors tend toward helium coolant, which if not as familiar as water, is at least entirely non-corrosive.

For bomb production, it's generally better to use an isotope production reactor, rather than deal with fuel rods full of nasty fission fragments and unwanted plutonium isotopes. These can be kept near room temperature, instead of running hot to generate power, which tremendously simplifies their engineering. Uranium's cheap, so "wasting" it just to produce neutrons isn't a problem for countries with large, secure supplies.
>>
>>6609778

That's what the fluoride in your toothpaste does, anon. It hardens the tooth against etching by acid. Brush regularly and you'll be okay.
>>
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>>6597384
Atleast this ain't never gonna happen.
>>
>>6608140
looks like the fMRI images of a brain
>>
>>6601260
but how do they know where the "enemy" is?
>>
>>6612293
by smell
>>
>>6612265
it might have happened somewhere

>tfw i'll never get to watch two stars collide in real-time
>>
>>6612293
chemotaxis
>>
>>6612318
can we make them "tank" sized? can they swallow a car?
>>
>>6610773
>Lack of any job security
>Shit teir salaries
>Spend most of your youth preparing to be a scientist and then upon graduation cannot find work
>Doomed to either beg for grants or be a highschool teacher.

This is the kinda shit that makes scientists sociopaths
>>
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>>6597374
>>
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Magnet Spinning Atop Superconductor
>>
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>>
>>6598688
*tips fedora*
>>
>>6603259
Just divide everything by the coefficient and you have a normal quadratic. Duh.
>>
>>6602674
How are these made? Just good old animation? Or is it some kind of software?
>>
>>6613590
Flash, probably.
>>
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>>
>>6602750
The replied image? An oscillation model, represented by waves.

Your image?
Cavitation, son.
>>
>>6608440

Is that that fucking Squand shit they used to advertise on Nickelodeon?
>>
No gifs, but a vidya.
https://www.youtube.com/watch?v=oS6FGzh3ygw
Thread posts: 241
Thread images: 83


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