[Boards: 3 / a / aco / adv / an / asp / b / bant / biz / c / can / cgl / ck / cm / co / cock / d / diy / e / fa / fap / fit / fitlit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mlpol / mo / mtv / mu / n / news / o / out / outsoc / p / po / pol / qa / qst / r / r9k / s / s4s / sci / soc / sp / spa / t / tg / toy / trash / trv / tv / u / v / vg / vint / vip / vp / vr / w / wg / wsg / wsr / x / y ] [Search | Free Show | Home]

Archived threads in /sci/ - Science & Math - 1859. page

This is a blue board which means that it's for everybody (Safe For Work content only). If you see any adult content, please report it.

File: NOTPOSSIBLE.jpg (30KB, 514x536px) Image search: [Google]
NOTPOSSIBLE.jpg
30KB, 514x536px
why does everyone hate DeGrasse?
54 posts and 7 images submitted.
>>
File: oMldW2R.jpg (19KB, 720x572px) Image search: [Google]
oMldW2R.jpg
19KB, 720x572px
>>7925918
>why does everyone hate DeGrasse?
Because he's a stoner, and the rest of /sci/ had to quit smoking weed to make it through college.
>>
>>7925925
>and the rest of /sci/ had to quit smoking weed to make it through college.

speak for yourself
>>
Because he's a meme scientist. He's a stamp collector who has memorized a bunch of facts and he regurgitates them in a bite-sized form for the general public to consume. He hasn't contributed anything to the field of astrophysics in the way of research or discovery. He was dishonest in his correspondence with Carl Sagan and has been Brian Williams-esque in over-representing their relationship. To his credit, he's well-spoken and passionate about all things related to space. That counts for something.

File: Mars_atmosphere_2.jpg (1MB, 1205x1349px) Image search: [Google]
Mars_atmosphere_2.jpg
1MB, 1205x1349px
Who will get to Mars first?

>NASA?
>SpaceX?
>ULA?
>Russians

Vote here http://strawpoll.me/7056572
20 posts and 4 images submitted.
>>
Interesting that the Russians are winning. Anyone want to give a reason as to why?
>>
>>7925599
Autocracies are pretty efficient, because the populations' wealth is redirected toward goals without long discussion processes like those of parliaments and voting.
>>
>>7925618
but they're broke

File: hqdefault (11).jpg (17KB, 480x360px) Image search: [Google]
hqdefault (11).jpg
17KB, 480x360px
What's your favorite area of math?

Mine is graph theory.
46 posts and 5 images submitted.
>>
>>7925329

Same. What's your favourite area of graph theory?
>>
>>7925541
Math
>>
>>7925541

The nodes

The furthest known galaxy has been discovered this March
http://www.nasa.gov/feature/goddard/2016/hubble-team-breaks-cosmic-distance-record
It's called GN-z11 and it's 32 billion light-years away. I have a question, if we can now see galaxies that existed just 200 million years after the Big Bang does that mean that soon we will be able to see the Big Bang itself?
26 posts and 3 images submitted.
>>
File: CMBR.jpg (62KB, 588x408px) Image search: [Google]
CMBR.jpg
62KB, 588x408px
We've already seen the Big Bang

>pic related
>>
>>7925210
I've seen this image so many times can someone explain it to me? I always visualized the Big Bang as a single point?
>>
>>7925213
>https://en.wikipedia.org/wiki/Cosmic_microwave_background

File: Untitled.png (43KB, 691x632px) Image search: [Google]
Untitled.png
43KB, 691x632px
While I know that no such lens exists in real life and probably never will, as far as I can tell the mere existence of a lens like this would cause entropy to decrease and allow background heat to be turned into useful energy.

Is there something wrong with this, or is two-photon excitation really that magic?
43 posts and 3 images submitted.
>>
>an hour later
>no attempt at explaining why this doesn't work
/sci/ does realise that this is a power source for a perpetual motion machine, right? I thought someone at least would try and refute it.
>>
File: 1447448787239.gif (3MB, 230x173px) Image search: [Google]
1447448787239.gif
3MB, 230x173px
>>7922743
Probably something to do with thermodynamics or quantum mechanics or the EM spectrum
one of those seciency things, you know?
>>
>>7922609
You can't double the frequency without actually interacting with the material. The total entropy still rises.
I assume that's what you're suggesting.

Maybe with a ridiculously strong electric field the vacuum itself would become non-linear, but that's a completely different beast.

File: Grable 15 kilotons.webm (3MB, 800x450px) Image search: [Google]
Grable 15 kilotons.webm
3MB, 800x450px
How exactly does the damage occur in a nuclear / thermonuclear explosion?
I mean, I can see what happens, but how does the fusion or fission of atoms result in that sizzling burn and huge shock wave? Does all the energy exclusively come from the fissile material, or is there some kind of chain reaction with the environment that helps drive the explosion?
And what is the bright, burning "fuel" that appears to make up the explosion's fireball?
83 posts and 14 images submitted.
>>
File: ivy mike.webm (3MB, 1280x720px) Image search: [Google]
ivy mike.webm
3MB, 1280x720px
>>
File: Poplar.webm (3MB, 1280x720px) Image search: [Google]
Poplar.webm
3MB, 1280x720px
>>
>>7921906
how come the plane didn't get hit by an EMP burst?

File: 1373241872696.jpg (45KB, 405x344px) Image search: [Google]
1373241872696.jpg
45KB, 405x344px
Is the concept of time a human construct?
Doesn't time require observation?
79 posts and 9 images submitted.
>>
Time exists, the concept of ticking seconds in just a construct
https://en.m.wikipedia.org/wiki/Spacetime#Spacetime_intervals_in_flat_space
>>
>>7918505
Just remember that time is a result of causality not the other way around
>>
>>7918515
Units of time are defined as seconds.
Further, the entire phenomenon is 'observed' from a reference frame.

File: maxresdefault[1].jpg (65KB, 1920x1080px) Image search: [Google]
maxresdefault[1].jpg
65KB, 1920x1080px
If you already know from the existence of mankind that biological life can occur in a planet with the right conditions to a level where those biological entities create civilizations, means of transportation and communication, then does it basically make it impossible to debunk the possibility of the existence of aliens ?
29 posts and 4 images submitted.
>>
well ? >:o
>>
>>7928828
yeah but it doesn't mean you proved they exist or anything
>>
>>7928828
Ya. No one can actually say alien life is impossible and be able to prove it. In fact that'd be a much more difficult thing to prove than proving aliens do exist.

ITT: We create the perfect human

-2.00m
-75kg
-8% body fat
-20cm penis, 16 cm circumference
-iq of 4000
-immortal cells
-perfect neurotransmissors

what else?

Also, since this is /sci/ make it scientifically possible.
37 posts and 6 images submitted.
>>
File: 1420755246155.png (506KB, 1000x625px) Image search: [Google]
1420755246155.png
506KB, 1000x625px
>>7928056
>Also, since this is /sci/ make it scientifically possible.
>-iq of 4000
>>
Curly hair
>>
>>7928056
>2.00m
>-75kg

You do realize that's a fucking stick insect?

File: circle-35_42929_lg.gif (92KB, 1024x1024px) Image search: [Google]
circle-35_42929_lg.gif
92KB, 1024x1024px
Why is the area a of the circle of radius r a = pi * r2 ?
23 posts and 4 images submitted.
>>
because the area of a circle of radius 1 is π

:^)
>>
Just set it as an axiom. Any other response would move the goalpost.
>>
File: CodeCogsEqn(1).gif (3KB, 609x84px) Image search: [Google]
CodeCogsEqn(1).gif
3KB, 609x84px
Becouse, pic related. Use transformation [math]x=r \cos(\theta) \wedge y=r \sin(\theta) [/math]

More proofs: https://en.wikipedia.org/wiki/Area_of_a_disk

File: thinking bear.jpg (85KB, 600x428px) Image search: [Google]
thinking bear.jpg
85KB, 600x428px
What's the point in studying science if you're never going to be like Einstein?
20 posts and 2 images submitted.
>>
>>7926997
You could study science to discover what made Einstein's brain special and replicate it in other humans, like yourself.
>>
Einstein was a Jew who worked for the patent office
>>
>>7926997
Bad way of looking at it ~100% of people won't be Einstein, but then Einstein was only able to be Einstein because of Maxwell, who was only able to be Maxwell because of Faraday... The point is the massive paradigm shifts are very rare and when they happen they're built on a foundation of other, solid, research. You're unlikely to be the next Einstein, but you very well might help the next Einstein have his idea, at some point down the line.

Personally I just want a larger paycheck, security, and job that isn't mind numbingly boring.

File: image.jpg (25KB, 300x168px) Image search: [Google]
image.jpg
25KB, 300x168px
If telekinesis was possible, how many laws of physics would that break? 3? 5? 8? 13? 21?
19 posts and 2 images submitted.
>>
without some kind of telekinesis field this would definitely violate fund theor of thermodynamics
>>
>>7926641
Not really that many to be honest, telekinesis is possible with strong enough em forces
>>
File: arminposting.png (95KB, 504x332px) Image search: [Google]
arminposting.png
95KB, 504x332px
>>7926641
Is arminposting the new gorillaposting? Stop trying to force these memes.

File: bunnybutt.jpg (418KB, 1280x1707px) Image search: [Google]
bunnybutt.jpg
418KB, 1280x1707px
How do you convert seconds to microwave time?
let's say you have 60 seconds that would be 00:60 but if you have 61 seconds then it would be 01:01.

What's the wizardry, /sci/?
17 posts and 4 images submitted.
>>
>>7926613
If x=seconds
Just do (x/60) for minutes and (x%60) for remainder seconds.
>>
>>7926613
you realize 61 seconds is just 00:61 right?
>>
OP I type in 00:99 all the time just to save button presses. I know that it's the same as 01:39. Why can't you comprehend this?

Yesterday a guy was giving pamphlets that said that the man who discovered ADHD affirmed the inexistence of the disorder.
27 posts and 2 images submitted.
>>
>>7926579
bump
>>
thats probably because he didnt discover it, and it was already labeled, he just wanted to sell drugs. hysteria has probably had 5 different names in the last century itself
>>
>>7926579
>discovered
*invented

File: 4L_VWKCnxiu.png (2MB, 1920x1080px) Image search: [Google]
4L_VWKCnxiu.png
2MB, 1920x1080px
Question 3: Remove All
Implement a function remove_all that takes a Link, and a value, and remove any list node containing that value. You can assume the list already has at least one node containing value and the first element is never removed. Notice that you are not returning anything, so you should mutate the list.

def remove_all(link , value):
"""Remove all the nodes containing value. Assume there exists some
nodes to be removed and the first element is never removed.

>>> l1 = Link(0, Link(2, Link(2, Link(3, Link(1, Link(2, Link(3)))))))
>>> print_link(l1)
<0 2 2 3 1 2 3>
>>> remove_all(l1, 2)
>>> print_link(l1)
<0 3 1 3>
>>> remove_all(l1, 3)
>>> print_link(l1)
<0 1>
"""
"*** YOUR CODE HERE ***"


Use OK to test your code:


python3 ok -q remove_all
19 posts and 2 images submitted.
>>
I won't make your homework, faggot.
>>
I'm sorry OP, but I only program in assembly via smoke signals, I can't help you there
>>
CS is unfortunately a meme because of people like OP

Pages: [First page] [Previous page] [1849] [1850] [1851] [1852] [1853] [1854] [1855] [1856] [1857] [1858] [1859] [1860] [1861] [1862] [1863] [1864] [1865] [1866] [1867] [1868] [1869] [Next page] [Last page]

[Boards: 3 / a / aco / adv / an / asp / b / bant / biz / c / can / cgl / ck / cm / co / cock / d / diy / e / fa / fap / fit / fitlit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mlpol / mo / mtv / mu / n / news / o / out / outsoc / p / po / pol / qa / qst / r / r9k / s / s4s / sci / soc / sp / spa / t / tg / toy / trash / trv / tv / u / v / vg / vint / vip / vp / vr / w / wg / wsg / wsr / x / y] [Search | Top | Home]

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/


If you need a post removed click on it's [Report] button and follow the instruction.
DMCA Content Takedown via dmca.com
All images are hosted on imgur.com.
If you like this website please support us by donating with Bitcoins at 16mKtbZiwW52BLkibtCr8jUg2KVUMTxVQ5
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.
This is a 4chan archive - all of the content originated from that site.
This means that RandomArchive shows their content, archived.
If you need information for a Poster - contact them.