Archived threads in /sci/ - Science & Math - 44. page
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So yeah im thinking about using an aquarium that I have to "create life"
I heard i need amino acids, water, salt and some sort of nutrients (they used glycerin)
But i have a hard time figuring out what kinds of amino acid i should use. does it matter and if yes which?
*And no I'm not an idiot who thinks i will be able to create a complex new species, high likely will it only be a colony of bacteria and nothing more.
>>8170928
>high likely will it only be a colony of bacteria
>>8170928
You need comets.
>>8170928
you're gonna have to have a sterile enviornment, oh and also arsenic cyanide ammonia electricity you know shit that can kill you
For the people who live in rural areas or the middle of nowhere.
Is this how your sky looks like during middle of the night? Just want to see if this is bullshit.
That's a long exposure picture, you won't ever see skies like that with an unaided eye.
>>8170851
I grew up in the country. Town about 10 miles west of the farm.
There was still some pollution but you could see the milkyway.
Op pic uses special low light filters and long exposures.
Another way to see the sky like that is to go out of town and use night vision goggles. Same effect
It's a lot more blue than that. Pretty sure that image is false color, or at least heavily filtered.
And you'll see maybe half the number of stars.
You don't have to go out to the middle of nowhere to see this though. I live in LA and a two hour drive north into the parks will provide a clear sky like that one.
why the fuck does the second derivative give the inflection point, I don't understand.
also, stupid question threat
>>8170781
its the slope of the first derivative?
I guess I haven't really answered it but another interesting way to think about it would be;
Why is the derivative of a distance-time graph equivalent to a velocity-time graph? Same for v(t) to a(t) [acceleration]
>>8170861
I can understand derivatives in terms of velocity / acceleration
But i'm having a hard time picturing (or understanding) how inflection points are given when setting the second derivative equal to 0
>>8170880
because the derivative of a generic differentiable function f(x) is the slopes/tangents of f(x)
visualising this: where f(x) has a maxima/minima the slope is zero so f'(x) will be zero at that point
where f(x) is increasing/decreasing the greatest it will have a peak for f'(x)
continuing this logic you can see that when you take the derivative of f'(x) the peaks become zero's on f''(x) which tell you where the slopes of f(x) are the greatest and the neighbouring points...
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What are some scientifically proven methods of increasing motivation?
>>8170721
cocaine
>>8170721
1.) Pleasure
2.) Pain
3.) Need
4.) Love
5.) Hate
>>8170721
Amphetamine based drugs
Where do you get the latest science news? Particularly astrophysics and technology.
>>8170476
Phys.org's fb page is p good, and mit tech review
>>8170476
Arxiv
What is the evolutionary advantage of smoking cigarettes? Why haven't people who are genetically predisposed to enjoying tobacco and addiction bred out of the genepool if it is so unhealthy, and unhealthiness = less fitness for mating?
>>8170406
Seems like there are considerably worse genetic traits that are being kept alive.
Maybe it just takes all kinds.
It doesn't have a big enough impact on health to make people croak before having sex.
>>8170406
>unhealthiness = less fitness for mating
Not on 2016. If anything the druggies will be the most irresponsible and the most likely to breed.
That said, addiction is not a genetic thing, we all feel pleasure and if we were to decide that pleasure is more important than everything else then you are literally addicted by choice.
Are space elevators viable and worth it?
>>8170262
Yes, and yes.
Problem right now is fabrication.
carbon nanotubes greatly lose strength for every atom out of place.
so 10 atoms out of place on a cable that should have gigatons of tensile strength. results in a cable that a few hundred pounds of tensile strength.
>>8170275
How would one produce enough nanotubes for such a project? What would the cost be?
>>8170275
Do you know what a realistic construction for a macroscopic carbon-nanotube-based "rope" would be? Seems to me you need to make strands that are each a continuous nanotube miles long, which is quite a feat. Can they be shorter and braided more like a rope? I just imagine that fraying apart under the massive tension.
Not protesting, I find the idea cool, just don't know much about it.
Whats so spooky about the Pi number ?
>>8170252
It's real
>>8170255
desu, if we can imagine that we can imagine it then that is close enough to be rigorous mathematics.
Nigga over there is fine both with creating 'imaginary' placeholders for irrational numbers, like the square root of two, and he is also fine with approximating these numbers when doing applications like plotting graphs.
If we can algebraically construct numbers whose square equals two and if we can get numbers that approximate that result then why is it nonsense for him to assign those approximated...
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From a mathematical perspective , is it worth it playing lottery games? can you beat the odds?
math nerds think ya and this is why theyre homeless XD
Yes. Most of the time, you can beat them by hosting them, which is why casinos make money.
>>8170220
It's possible to make money, if you're smart enough. However, for most, it's a pretty bad idea.
http://newsfeed.time.com/2012/08/07/how-mit-students-scammed-the-massachusetts-lottery-for-8-million/
so how dull is it that dark matter is litterally just black holes, formed from primordial gas with less mass than a stellar BH, but more than a neutron star, forming halos around galaxes that keeps them together.
it's nothing amazing
Does this mean it's impossible to leave a galaxy without getting sucket into a black hole?
>>8170207
Give me a source m8
>>8170263
Even if OP was right about DM being entirely black holes, it can't be impossible to leave the galaxy because light from other galaxies can travel through the halo to our planet without getting sucked into any black holes.
>Go to college to get a good job, they said
reality:
>study every fucking day
>stress every day
>trying to focus on my studies, if I slip and go on the internet I'm completely fucked
>stress of whether or not financial aid will help cost of living
>stress of achieving a high GPA
THIS FUCKING SUCKS ASS BRO. This literally isn't fun, I'd almost rather...
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>>8170095
>work at a manufacturing company
reality:
>work every fucking day
>stress every day
>trying to focus on making ends meet but taxes, groceries, gas, electric...
>Stress of whether I will continue to have a job and be able to feed myself
>Stress of not showing up late, being a dumb shit or being unlucky and getting fired
you're...
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Make a schedule and ask for help/form a study group.
you need more drugs in this equation
Is wild fire as seen in Game of Thrones Season 6 finale episode scientifically explainable ?
whats its real life counterpart if there is one
look up on greek fire fagot. a simple google search would have given you the answer
>>8170015
Greek fire.
Napalm.
Any sufficiently compressed and aerated flammable liquid.
>>8170022
>real world not guesses and flame throwers
Well in liquid form the fumes are not flammable until the liquid catches fire. Has to be something with a lot of energy though and with explosive properties. I would say a type of rocket fuel is the only thing that really matches these properties.
how would one go about "opening" the 4th dimension? aka making it accessible in some way?
>>8169885
Math.
>>8169885
Have you ever considered the possibility that you don't actually understand the scientific terms you're using? That maybe all of the advanced scientific explanations you've ever heard have just been metaphors, oversimplified to the point of removing all useful information? And that, therefore, you not only lack the knowledge to answer the questions you have, but also to know what questions are even vaguely coherent?
I would strongly recommend looking into this possibility.
you'd die instantly, your guts would be ejected into the 4th dimension
which calculation is this number the result of?
answer fits into one post, no picture as answer allowed.
>>8169862
It could be anything
>>8169862
that number + 0 = that number
>>8169862
Judging from all the 0's at the end, I'd say it's something like "what is the smallest number divisible by every element in the set "blah" where blah is a certain subset of natural numbers. Actually, I think all the 0's at the end might be able to tell us that, but fuck counting.
Law Of Attraction thread. Does it work for you and at what percentile.
As a psychological idea it has a certain rationality to it. There is clearly a very strong (if very complex) relationship between our behavior and our thinking.
Anything beyond that is absolute garbage. The idea that thoughts somehow cause situations far removed from one's realm of activity to occur (like somehow causing the Lotto balls to come up on what you want them to be) is painfully stupid and I'm honestly shocked how popular it is and how readily accepted it is (even if only in minor variants).
Anything which tries to justify such a scenario using...
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>>8169859
I thought about making this thread yesterday in the morning. So yeah I get some synchronicities.
I had some weird experiences with it, I can share some if thread lives.
But desu, I never got the complete manifestation, just signs, sinchronicities, weird weird coincidences.
Like this one (less weird than some i had). Im used to that. I also observe everyone I know and analize their states of mind and the way they shape their lives. It works, there is correlation.
I just havent made it to...
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>>8169874
This is /thread, desu.
>>8171252
>I had some weird experiences with it
Something most people fail to recognize is that it would be weirder if nothing weird ever happened, that's probability. Failure to recognize this is how some people end up with conviction in religion, "miracles". There's also the simple fact that our consciousness lies to us about the outside world constantly - blind spots are the most obvious example.
