[Boards: 3 / a / aco / adv / an / asp / b / biz / c / cgl / ck / cm / co / d / diy / e / fa / fit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mu / n / news / o / out / p / po / pol / qa / r / r9k / s / s4s / sci / soc / sp / t / tg / toy / trash / trv / tv / u / v / vg / vp / vr / w / wg / wsg / wsr / x / y / ] [Home]
4chanarchives logo

Archived threads in /sci/ - Science & Math - 576. page


File: Evolution[1].png (18KB, 450x300px) Image search: [Google] [Yandex] [Bing]
Evolution[1].png
18KB, 450x300px
How could humans - cousins of apes who are adapted to African savannas, develop such an advanced civilization and even get themselves to space?
51 posts and 4 images submitted.
>>
File: 1378208393644.jpg (14KB, 360x360px) Image search: [Google] [Yandex] [Bing]
1378208393644.jpg
14KB, 360x360px
>>7701252
Fuck off.
>>
>>7701252
It's evolution baby!!!!
>>
>>7701252
mating.

the essence of every single human accomplishment lies in mans desire to mate.

File: 1424683832127.jpg (151KB, 814x545px) Image search: [Google] [Yandex] [Bing]
1424683832127.jpg
151KB, 814x545px
>Energy can neither be created or destroyed
>The big bang happened

>athishits literally on suicide watch
12 posts and 4 images submitted.
>>
>>7701248
Picture made me lol.
Still laughing.
>>
File: Hitchens.jpg (247KB, 1127x914px) Image search: [Google] [Yandex] [Bing]
Hitchens.jpg
247KB, 1127x914px
>I don't believe in things without evidence
>Believes in Hawking Radiation, in the Multiverse theory and String Theory
>>
File: u.png (246KB, 392x417px) Image search: [Google] [Yandex] [Bing]
u.png
246KB, 392x417px
>I don't believe in Fairy tales!

>thinks a Zombie Apocalypse is likely to happen

File: image.jpg (9KB, 259x194px) Image search: [Google] [Yandex] [Bing]
image.jpg
9KB, 259x194px
What explodes when mixed with table salt?
41 posts and 5 images submitted.
>>
TNT and fire.
>>
Snails.
>>
File: sodium electrolysis.png (273KB, 552x442px) Image search: [Google] [Yandex] [Bing]
sodium electrolysis.png
273KB, 552x442px
1. Sodium electrolysis
2. Throw pure sodium into water

File: erer.png (896KB, 637x636px) Image search: [Google] [Yandex] [Bing]
erer.png
896KB, 637x636px
Can we have a thread about NASA failures and the toxic culture that precipitated them?

I was reading up on the Columbia disaster last night and I can't believe no one went to jail over this.

>Space shuttle Columbia takes off
>piece of foam insulation breaks off and damages the left wing
>NASA analysts insist the damage is nothing serious
>mission proceeds
>evidence from computer modelling shows that it might be quite serious
>NASA ignores the data
>DOD offers to photograph the shuttle in space so the crew can assess the damage and consider the prospect of repair
>NASA blocks the DOD from intervening, reasoning that there's nothing the crew can do about it
>NASA bureaucrats led by Linda Ham (who was later dismissed) decide that they're all dead anyway and it would be better not to let them know it
>Quote: You know, there is nothing we can do about damage to the TPS [Thermal Protection System]. If it has been damaged it's probably better not to know. I think the crew would rather not know. Don't you think it would be better for them to have a happy successful flight and die unexpectedly during entry than to stay on orbit, knowing that there was nothing to be done, until the air ran out?
>meanwhile NASA ground control sends the following message up to the crew before they begin reentry:
>During ascent at approximately 80 seconds, photo analysis shows that some debris came loose and subsequently impacted the orbiter left wing. The impact appears to be totally on the lower surface and no particles are seen to traverse over the upper surface of the wing. Experts have reviewed the high speed photography and there is no concern for RCC or tile damage. We have seen this same phenomenon on several other flights and there is absolutely no concern for entry.
>astronauts are now flying blind into almost certain death
>shuttle explodes over Texas
>Mission control declares a contingency and seals the room. Finger pointing begins at NASA
21 posts and 4 images submitted.
>>
>>7701161
Do you actually take the trouble to read up on the Columbia disaster every night before you make this thread again?
>>
File: columbia_direct_hit.jpg (20KB, 610x407px) Image search: [Google] [Yandex] [Bing]
columbia_direct_hit.jpg
20KB, 610x407px
>shuttle explodes over Texas
over Palestine, TX
as planned
>>
>>7701161
Dude, again?

File: 1449097746287.gif (54KB, 640x640px) Image search: [Google] [Yandex] [Bing]
1449097746287.gif
54KB, 640x640px
Why are women so small and weak? I mean shouldnt the sex which is taking care of the infants and is crucial for their development also be the stronger one?
85 posts and 7 images submitted.
>>
>>7701028

I don't know why exactly, but males being larger suggests that in the wild males would have multiple females.

I guess it's just something that happens in nature.
>>
>>7701028
>>7701031
Actually, the human male being larger, smarter and stronger than the female is an exception to the rule in nature.
>>
>>7701028
It's not like that in all species. Female spiders are stronger etc.

File: img9 (1).png (786B, 166x34px) Image search: [Google] [Yandex] [Bing]
img9 (1).png
786B, 166x34px
sup /sci/ atm im writing some shit for school, and i need to describe von neumanns intervention, se pic. What does it excatly describe? I have a good idea but im not totally sure.
Thx man
18 posts and 3 images submitted.
>>
Tell us about your good idea.
>>
>>7701043
>Tell us about your good idea.
Alright, so PSI tells us the wave function. Its dependent on what number "n" is, and "n" describes a position an atom can have. Cn is dependent on n aswell, as Cn describes how high chance the "n"-state has to be taken, after the Atom's superposition colapses. Lets consinder that the superposition of the atom already colapsed, therefore the wavefunction also colapses, because the function no longer is a function but a number. Because its mearly a number its described as ni.
Sry for bad english, its not my native language, and on this level of science its hard to explain in any other language than my own.
>>
>>7701077
Did you mean

[eqn]\left\vert n \right\rangle [/eqn] is a stationary state.
[eqn]\vert C_n \vert ^2[/eqn] gives the probability to find particle in state [math]n[/math]
and [eqn]\left \vert \psi \right\rangle[/eqn] is a superposition of all stationary states?

I'm going to post some puzzles I struggled with or found challenging. I think /sci/ will like them.
36 posts and 5 images submitted.
>>
>>
>>

File: 1443116303824.gif (2MB, 500x490px) Image search: [Google] [Yandex] [Bing]
1443116303824.gif
2MB, 500x490px
Post your dumb as shit questions ITT
329 posts and 46 images submitted.
>>
File: Furry Reason to live.jpg (264KB, 800x2485px) Image search: [Google] [Yandex] [Bing]
Furry Reason to live.jpg
264KB, 800x2485px
Is a Nuclear Physics PhD a waste of time?
>>
>>7700915
what is your long term project? The answer is irrelevant if we don't know what you want to do with it.
>>
>>7700915
why the fuck are you asking us? If you are at a point in your life where a nuclear physics PhD is a viable idea than you would know much better than we would.

honestly PhDs in specific fields which prepare you for research in those fields are quite obviously worth it if thats what you wanna do

What's a Banach Space?

https://www.youtube.com/watch?v=n12bfWTw9Hk
22 posts and 3 images submitted.
>>
A Banach space is a complete normed space.

For example the real numbers with the absolute value function as norm or the space of continuous functions from the interval [a,b] to R with the supremum norm.
>>
>>7700831
What the fuck is a norm?
>>
>>7700835
A function from a vector space V into the real mumbers such that for all scalars r and all vectors v,w we have

|v| >= 0
|v| = 0 iff v=0
|rv| = |r| |v|
|v + w| <= |v| + |w|

What would be the consanguinity of Christ, who was the only begotten son of himself.
14 posts and 5 images submitted.
>>
>>7700763
Weeeeellllllllllllllll
>only begotten son of himself
let's be honest here.
>>
File: 1442558637203.jpg (27KB, 480x329px) Image search: [Google] [Yandex] [Bing]
1442558637203.jpg
27KB, 480x329px
>>7700770

I see the green text but cant tell what your implying. Can you be a bit more frank?
>>
>>7700783
Oh, Jesus's father wasn't himself. Humans don't reproduce asexually.

File: asimov.jpg (119KB, 720x288px) Image search: [Google] [Yandex] [Bing]
asimov.jpg
119KB, 720x288px
In our group it is common to place some meaningful quote somewhere in the front of the PhD thesis.

Did you also put some quote in your thesis? If you are still writing, will you put one inside?
24 posts and 5 images submitted.
>>
>>7700733
No, that's pretentious as fuck.
>>
>>7700733

Agreed with >>7700737

That's ridiculously pretentious. If someone i knew did that i'd lose all respect for them.
>>
>>7700733
I did.

"I say, there is no darkness but ignorance." - William Shakesman

File: 1367110195_2.gif (75KB, 737x700px) Image search: [Google] [Yandex] [Bing]
1367110195_2.gif
75KB, 737x700px
are mathematical concepts created or discovered?
37 posts and 6 images submitted.
>>
>>7700660
Yes
>>
>>7700664
Can confirm
>>
>>7700660
>100th repost
if you were sincere, you could check the archives and not make the thread in the first place

too bad you're just a shitposter

File: 1446725413170.jpg (3MB, 2635x1897px) Image search: [Google] [Yandex] [Bing]
1446725413170.jpg
3MB, 2635x1897px
Someone asks for Empiricism to come to /sci/ and all the NEET faux-STEM wannabes start going full autist.

"Proof? Fuck you take your meds lololol!"
"Proof is for stupid people! Citations aren't allowed, they're all stupid take your meds lololol!"

Seriously?
None of you are for real.
You cannot reject Empiricism and be /sci/.
Science IS Empiricism.
24 posts and 3 images submitted.
>>
take your meds
>>
Someone asks for taking your meds and all the schizo faux-intellectual wannabes start going full autist.

"Meds? Fuck you im not crazy lololol"
"Ad hominem! Fallacy! Bulverism lololol!"

Seriously?
None of you are for real.
You cannot reject memes and be you.
You ARE a meme.
>>
they have all become politicized and egotistical
you can not tell egotists that self serving assumptions and character assassination is illegitimate
asking generation y to show their proof is like challenging them personally
run

File: 1.-Stephen-Hawking.jpg (167KB, 500x333px) Image search: [Google] [Yandex] [Bing]
1.-Stephen-Hawking.jpg
167KB, 500x333px
New /sci/ rules:
1.) Must provide citations
2.) Must not use any fallacies or biases
3.) Must not attack people under any circumstances, only their arguments
4.) Refutations require the pointing out of false equivalences

This is math and science only.
Opinions are wrong and belong in /pol/
34 posts and 2 images submitted.
>>
>>7700613
New /sci/ rules:

1.) Take your meds.
>>
>>7700623
If you disagree with these rules, then you're psychotic by definition.
Keep up with the immature personal attacks.
It's all truly stupid people have.
I however have Epistemology and Empiricism.
>>
sounds a bit harsh but kinda alright

File: 1420953299983.png (45KB, 720x720px) Image search: [Google] [Yandex] [Bing]
1420953299983.png
45KB, 720x720px
Will I still get banned if I post a specific math problem I'm needing help with, if it's not homework?
19 posts and 2 images submitted.
>>
No, not as long as it isn't obviously homework, e.g. "Hey /sci/ what's the answer to this question? Thanks". Post it.
>>
>>7700569
If it's highschool tier then obviously yes.
>>
I don't undrstand why people here suddenly came up with that hate for homework. It's perfectly alrught to help others with homework. Just make it clear that it is homework in the OP, and people can give hints or show the general direction or explain how it's done. Giving just the solutions without challenges for the student should be banned, not asking for it.

Pages: [First page] [Previous page] [567] [568] [569] [570] [571] [572] [573] [574] [575] [576] [577] [578] [579] [580] [581] [582] [583] [584] [585] [Next page] [Last page]
[Boards: 3 / a / aco / adv / an / asp / b / biz / c / cgl / ck / cm / co / d / diy / e / fa / fit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mu / n / news / o / out / p / po / pol / qa / r / r9k / s / s4s / sci / soc / sp / t / tg / toy / trash / trv / tv / u / v / vg / vp / vr / w / wg / wsg / wsr / x / y / ] [Home]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
If a post contains personal/copyrighted/illegal content you can contact me at [email protected] with that post and thread number and it will be removed as soon as possible.
If a post contains illegal content, please click on its [Report] button and follow the instructions.
This is a 4chan archive - all of the content originated from them. If you need information for a Poster - you need to contact them.
This website shows only archived content and is not affiliated with 4chan in any way.
If you like this website please support us by donating with Bitcoin at 1XVgDnu36zCj97gLdeSwHMdiJaBkqhtMK