[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 - 1534. 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.

Is statistics falsifiable?
14 posts and 2 images submitted.
>>
stats is a bullshit
im a cs student btw
>>
>>8205943
>feminism.
Yes, /thread.
>>
>>8205946
Explain

File: operatingsystems.jpg (39KB, 500x214px) Image search: [Google]
operatingsystems.jpg
39KB, 500x214px
So, which one is it (it doesn't need to be on the list)?
18 posts and 1 images submitted.
>>
>>8205903
ubuntu and os x, if you have to ask.
although it's a rather silly question. largely, everybody just uses whatever the fuck they prefer - ubuntu, debian, fedora, arch, windows, os x. nobody uses these shitty mobile ones though, iOS, android, Chrome.
>>
>>8205903
The list is shit.
>>
im a PhD student in operating systems and my university department only uses tizen

How would you explain the concept of mengele sponge to a dumb person?
37 posts and 7 images submitted.
>>
File: 59715567.jpg (49KB, 200x279px) Image search: [Google]
59715567.jpg
49KB, 200x279px
>>8205760
>Mengele
<-
>Menger sponge
>>
>>8205760
Nice trick to trick us into explaining it to you. Kill yourself faggot.
>>
>>8205764
Fucking strange words in English and German
>>8205777
Unironically how did you know it?

File: image.jpg (625KB, 2560x1440px) Image search: [Google]
image.jpg
625KB, 2560x1440px
What's the difference between vacuum energy and dark energy?

Is it that vacuum energy is equivalent to zero point energy as measured by the Casimir effect, Lamb shift and spontaneous decay?

And that dark energy is a hypothesised form of energy made up of zero point energy and scalar fields, such as the Higgs field, that permeates all of space and which would therefore explain the accelerating expansion of the universe?

So one is an experimentally verified phenomenon, while the other is an unverified hypothesis that intends to explain an observed phenomenon?
16 posts and 4 images submitted.
>>
>>8205578
The difference is that dark energy is 10^115 times as powerful as the expected effect of vacuum energy.
>>
>>8205578
>What's the difference between vacuum energy and dark energy?
one is real, the other is not
>>
>>8205582

Right ok, so the accelerating expansion of the universe would require that much energy.

So we're left with a massive amount of mystical invisible energy?

>>8205586

That sounds a lot like:

>So one is an experimentally verified phenomenon, while the other is an unverified hypothesis that intends to explain an observed phenomenon

So, ok cool.

File: 1468425303541s.jpg (9KB, 250x175px) Image search: [Google]
1468425303541s.jpg
9KB, 250x175px
Hey /sci/, businessman here,

What are some things that you guys wish you had along your college years or for your studies? I'm considering creating a business appealing to STEM students, as I always enjoyed science, and would like to help others who enjoy it.
15 posts and 2 images submitted.
>>
>>8205493
Learn to download the image, not the thumbnail. FaggOP brainlet confirmed.
>>
>>8205496
this is true
>>
>>8205493
>What are some things that you guys wish you had along your college years or for your studies?
nothing

of course I speak only for myself and not every other STEMfag

but if I was a businessman and would cater to STEMfags I would offer cheap beer, coffee and energy drinks because almost everyone here seems to chug that shit all day long

too bad for you though. we have our own brewery and get 1 free coffee and 1 free beer a day. I never used it though because I never drink any of that shit. the only shit I drink is tap water and sometimes milk and green tea

File: 1466973829660.jpg (29KB, 640x519px) Image search: [Google]
1466973829660.jpg
29KB, 640x519px
Is it possible to simulate the effects of ferrofluid on a desktop computer? Can I use RealFlow for this or are there better tools available?
12 posts and 2 images submitted.
>>
>>8205388
yes.
>>
>>8205388
Yes
>>
no.

File: basicmathematicsbysergelang.jpg (12KB, 330x499px) Image search: [Google]
basicmathematicsbysergelang.jpg
12KB, 330x499px
Is this book the best book for beginner higher level mathematics?
15 posts and 3 images submitted.
>>
>>8205282
It's the best book for an adult wanting to (re?)learn school math
>>
File: S60715-135206.jpg (252KB, 800x1280px) Image search: [Google]
S60715-135206.jpg
252KB, 800x1280px
not OP, but i saw the thread where this book was recommended.

What subject covers pic related? And what path from high school maths will have me understand this notation and statments?
>>
>>8205370
Bump for interest.

File: 1.jpg (30KB, 425x295px) Image search: [Google]
1.jpg
30KB, 425x295px
14 days till exam
30 pages have to be 100% present
It takes 5min to learn the content of one page

How many hours do you need per day?
time_needed=time_learn*pages/days
time_needed=5min*30/14=11min

But you forget that stuff exponentially!
>pic related

If you would assume the repetitions were at
10min,1hour,1day,3days,7days

How would my formula than look? At day -14 you learn 2 pages and than 10min later again those same pages.
At day -13 you learn 2 new pages, repeat them and the 2 pages from the day before -14

I don't really know how to calculate that.
Can someone please help me? I want to have a plot everyday which calculates the time i would need to spend each day if I would start learnjng for the exams right now.

That way I would see the amount I have to learn increase rapidly when the exams approach and hopefully pick the right time to start
15 posts and 2 images submitted.
>>
>>8205255
Bump for potential
>>
File: 1.jpg (50KB, 416x472px) Image search: [Google]
1.jpg
50KB, 416x472px
Hey mathfags you are needed here
>>
Anki?

File: 1440550874672.jpg (82KB, 1600x723px) Image search: [Google]
1440550874672.jpg
82KB, 1600x723px
Let's have a thread about simple math problems.


I am pretty bad at math and have barely more than high school education. But recently I sat at the toilet and wondered, what is 1+4+9+...+x^2? Then I took a piece of paper and solved it, googled and discovered that my formula is correct. It was quite fun doing it. Some of you may laugh at the simplicity, but as I said, I am pretty bad at math.

Anyway, got more simple math problems for me? It's kinda fun.
19 posts and 1 images submitted.
>>
If you want simple math problems like that, especially ones at your level of education, consider conics.
>>
Maybe we can get some more simple math problems if we just extend your problem!

like, if "t" is some number, what is
[math] 1^t + 2^t + 3^t + ... + x^t [/math]
?
Or we may take t to be a negative number. For example, let's flip the sign in your example. What number is
[math] 1^{-2} + 2^{-2} + 3^{-2} + ... + x^{-2} [/math]
In this case, we can even let x be arbitrary high, we can even sum all numbers!
What is
[math] 1^{-2} + 2^{-2} + 3^{-2} + ... [/math]

Or what is
[math] 1^{-s} + 2^{-s} + 3^{-s} + ... [/math]

for any number? Or even any complex number. What kind of function is that? Where are it's zero values located?
>>
>>8205240
The Roymang Seto Fangtion.

File: bab.png (43KB, 681x346px) Image search: [Google]
bab.png
43KB, 681x346px
Let’s Get This Straight, Once and For All
From a /sci point of view
What is the better Adblocker?

with highly scientific poll
http://www.strawpoll.me/10752753
15 posts and 3 images submitted.
>>
>>>/g/ays are over there
>>
>>8205183
adblock in $CURRENT_YEAR lel
>>
>>8205183
Firefox and NoScript.

File: bebe.png (27KB, 608x615px) Image search: [Google]
bebe.png
27KB, 608x615px
As the title says what can I do to become more rational but also creative?The only things that I think may help me are philosophy(not baiting) and math.
10 posts and 1 images submitted.
>>
Start working into organic chemistry and molecular synthesis.
>>
>>8204751
Care to elaborate or youre just making fun of them?
>>
>>8204751
Kek.

OP, I'm not sure how to help you. For me it is curiosity that drives me to be both rational and creative. I am constantly refining and expanding my worldview, and given that I can't often have conversations about it with my friends, I am driven to express it in writing, painting, drawing, music, and eventually maths.
I suppose the best thing I can recommend is to read a lot of textbooks, philosophy, and literature.
Once you've read a fair bit, I'd recommend a trip on LSD or 1p-LSD to give you a new perspective on your knowledge. Shrooms are good too.
Just remember during your trip to be credulous of your thoughts. In fact, this is important most of the time.

File: 30236_1_xl.jpg (85KB, 500x329px) Image search: [Google]
30236_1_xl.jpg
85KB, 500x329px
Why do physicists claim the big bang ball was the size of a marble? How did they calculate that?
It could have been the size of a boulder, a star or a fucking galaxy.
35 posts and 2 images submitted.
>>
Why do mathematicians claim 1+1 is 2? How did they calculate that?
It could be 3, 4 or fucking 2145921.
>>
who claims it was the size of a marble?

as I understand it, the big bang wasn't a sudden expansion of matter in space, it was an expension of space itself, so the universe was always the same "size", because you can't measure something outside of space.
Am I wrong?
>>
>>8204716
but how do they know if it started as a marble, a grain of salt, an atom, smaller or even bigger

How many hours would one need to complete a math bachelor?
30 posts and 1 images submitted.
>>
>>8204443
about 3000 with all the homework.
>>
>>8204448
Why?
>>
>>8204451
~120 credit hours * 16 week semester. round up to the nearest thousand for homework and projects. shit nigga, maybe you should forget about this math thing.

File: Pierolapithecus-catalaunicus.gif (85KB, 600x447px) Image search: [Google]
Pierolapithecus-catalaunicus.gif
85KB, 600x447px
How did they walk? Is the knuckle-walking seen in chimps and gorillas unique to their respective genera, or was our common ancestor a knuckle-walker?
16 posts and 7 images submitted.
>>
File: pierolapithecus.gif (75KB, 350x412px) Image search: [Google]
pierolapithecus.gif
75KB, 350x412px
>>
>>8204057
>knuckle-walker

I now know what to call those fucks on my team in multiplayer games
>>
File: PDGprimates01.jpg (103KB, 650x735px) Image search: [Google]
PDGprimates01.jpg
103KB, 650x735px

File: anticlosure.png (2KB, 138x84px) Image search: [Google]
anticlosure.png
2KB, 138x84px
Not sure if this is the right word, but is there a proper word describing an operation on a set that never gives back an element from the set?

i.e. you have some magma (N, *)
for any x, y in P
x * y is not in P (but is in N)

(not necessarily a binary operation)

e.g.
the primes under multiplication
characters under concatenation
14 posts and 2 images submitted.
>>
forgot to say
*P is a subset of N
>>
>>8204022
I don't think there is a word for it. Anti-closure sounds good.

As a side effect, if the operation has an identity then said identity cannot be contained in P in order for it to have this property.
>>
>>8204022
>Asking an algebra question to /sci/
Most people here don't even know Calculus II.

Pages: [First page] [Previous page] [1524] [1525] [1526] [1527] [1528] [1529] [1530] [1531] [1532] [1533] [1534] [1535] [1536] [1537] [1538] [1539] [1540] [1541] [1542] [1543] [1544] [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.