Archived threads in /sci/ - Science & Math - 198. page
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/sci/ do any of you torrent textbooks? Also, is it too risky to keep them on google drive?
Hell no dude WAY too risky my cousin just got sentenced to life in prison for a couple of Rudins.
>>8018510
Too risky to torrent them in general? What if I just use vpns... also i've downloaded two right now, can they get me on that? I haven't done anything with them really.
>>8018518
Tell Tyrone I said hey
Is there a bigger number than this?
Sure. Just feed Aleph into the Ackerman function. Boom.
>>8018496
What about Aleph -> Ackerman function + 1?
what about [math]\frac{-1}{12}[/math]
I know this is verging on not /sci/ material, but I think I'll ask anyway.
My whole life I think I have understood that post-death is a void in the same way pre-birth was a void. My problem is this: if death takes you to the same state as before you were born, then isn't it logical to say death isn't final? Because something took you from pre-birth state to alive state, and death takes you back to dead/pre-birth state. Where am I going wrong?
You are assuming there is an abstract thing called "you" that is continuous.
>>8018448
But functionally isn't it the same thing? As in, if something happened once, why is it reasonable to say it can only happen once?
>>8018456
You are the sum of your experiences. When the experiences cease, so do you.
okay, so I was thinking: what if there was a moon (c) of an other planet and it circled around planet b but also around itself (see image) How would its day and night cycle look like?
That's a cool idea
assuming its rotation is a bit faster than its revolution it would have a couple short nights and then a long night
>>8018435
The fact that the moon c is orbiting planet b would not change its day/night cycle. Its day night cycle would only be determined by its rotational period (i.e. how quickly it spins on its axis and the tilt of this axis).
However, depending on how the moon's orbital plane around b is oriented, occasionally the moon would fall in b's shadow and it would experience an eclipse.
In the long term (millions or billions of years), the moon's rotational period would eventually slow due to tidal...
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![20160420_112123[1].jpg](https://i.imgur.com/Qx2lIYe.jpg "20160420_112123[1].jpg")
I was in chemistry class today and i was holding a Sulfate (i don't remember if it was silver, copper or zinc, but i think it was copper)and accidentally dropped some water on it while it was in my hand, the water got blue and now my hand has black spots, the teacher told me that should be normal in a few days or i could use acetone to help it
what do
That looks necrotic, anon.
Looks like your hand might need amputating.
>>8018438
This ^ You need to get it off fast before it spreads to your arm.
do what your fucking teacher said, use acetone, why even ask here?
Why are people who search for aliens on Mars ridiculed? So long as they are prepared to accept the debunking if there is one then I don't see the problem? It is well known that Mars was very like habitable in the past, been around for billions of years, is a huge planet tens of thousands of kilometers in circumference and we've explored barely any of it. Just a couple of small hills with rovers, that's it There could be an artifact or two sticking out of the dust somewhere and we don't know. Even if they don't find ayys they are still helping the mission by pointing out interesting rock formations and keeping the public who are you know, paying for the mission engaged.
DUDE AYYLIENS LMAO
R U TINFOIL SON ? U BELIVE IN PONIES TOO ?
DUDE WAT R U SMOKIN LEL ? ALIENS xDD
CONSPIRITARD LMAO
>>>/xxxXXXXXXXxxxx/<<<
>>8018345
Everytime we learn something about Mars, the less likely life, even microbial, becomes. Something such as an animal running around is almost garunteed to be bullshit, but life in total is not out of the question. The lack of atmosphere would give bombardments of UV rays and mutations out the wazoo (assuming they use DNA), so anything that reproduces would have a problem upholding fertility.
>>8018359
I was talking about evidence of past life. Even existing life is still possible though, underground water away from radiation, those weird methane signatures. I don't see anything in the science book that says past or present ayys on Mars is completely impossible.
>The High Frequency Active Auroral Research Program was an ionospheric research program jointly funded by the U.S. Air Force, the U.S. Navy.
>>8018243
It's just another paranoidfag meme. Put the drugs down desu.
>>8018249
I don't use drug man, weed is not a drug it came from a plant.
>These are drugs:
Bromfenac
Etodolac
Fenoprofen
Flurbiprofen
Ibuprofen
No longer funded. It was cool though, they were trying to use it to make ELF waves without requiring a fuck huge antenna so they could talk to subs.
How long until we can make this stuff in large enough quantities to make a space elevator?
5, maybe 10
15, if we stray a bit.
Is econophysics a meme field?
not at all. thats how you get rich. or rather learn how to manage your income so you build a sustainable account for the future
>>8018053
>econophysics
literally what the fuck
Anything with physics in the title is a meme field
I have a question regarding freight train speeds.
Explanation: I live in Australia, directly across a set of train tracks. Occasionally at night a freight train would pass and it got me curious as to how fast it's going.
Question: how fast would a freight train be going if there are ~80-90 containers aboard weighing ~26,000kg each ± 3,000kg; assume they go at a set speed, does not stop, and goes on a fixed straight line?
Feel free to just post the answer but showing your working out helps understanding how you got to your conclusion.
>>8017946
There is no way to answer that. You're only giving a mass of the train and saying that it moves at a constant speed. Nothing can be done with that information.
>>8017950
I can confirm this, if it helps; it goes faster than 40km/h but no faster than 100km/h
>>8017951
Cool, man. You only put a restriction on the answer, not added any info in order to find the answer. What you need is a measure of the train's momentum or kinetic energy.
http://harvardmagazine.com/2013/09/walter-isaacson-on-bill-gates-at-harvard
>would study for 36 hours in a row
>took a double course load at Harvard standards at 70s standards when only smart people went to university
How do I be like this?
>>8017886
>How do I be like this?
posting it over and over again on /sci/ probably won't help
>>8017886
Mechanical brain augmentations.
Then again, people like this can also get those augmentations, rendering the point m00t.
>>8017886
lie through your teeth
not that he isn't a smart man, but the reason most superhuman feats appear the way they do is because people exaggerate or distort them to be impressive
can /sci/ solve this simple problem?
8+9/3
[math]8+log_{9}9 + \frac{2}{3} * 3[/math]
>>8017771
8+2-9-4+7-6+10+3=11
>Fields medal when?
Is 7 hours/night the minimum level of long-term sleep one should have?
Pic related from a study of the military
my productivity hovers around 100 regardless of sleep, am i retarded
>>8017717
I read somewhere that the grown adult needs exactly 7 and a half hours of sleep to function correctly
>>8017717
What are 'rounds per tube'?
how would u define math
what is it?
Math is a model originating from the set of laws the the universe operates on.
>>8017597
study of patterns
>>8017597
Problem solving.
sci if you could throw out mathemeticians like pokeballs to win arguments for you, who would you choose for the proof that
0.999... does not equal 1
>>8017327
NJ WILD FUCKING BERGER
Ted Cruz
the guy that proved 2+2=jesus
