Archived threads in /sci/ - Science & Math - 458. page

>>8960061
Boundary conditions for the wave function of the electron. That is what gives rise to quantization.

>>8960061
Well classically it's understood as the Coulomb attraction and centripetal force being equal.

But that's classical, the modern understanding is that the electron has no definite position before measurement. On measurement the distribution of positions collapses to a single definite position, on average this position will be the Bohr radius. However there's a small, but non-zero, probability of it being found inside the radius of the proton.

>what is electron capture

Neither is happening.

>>8972122
>I am afraid of islam take over the world first than the machines.

>Islam does not take over the world
Then women in western countries keep getting more political and economic power, on top of their huge social and sexual power, and then start a dark age where men are executed on the streets for disobeying and all men must be sterilized and live as livestock.

>Islam takes over the world
Women lose all of their power, even their sexual power as they have to cover everything. Men keep enjoying cold ones with the boys forever.

I have already made my choice.

>>8972122
Kurzweil just rescheduled the singularity from 2030 to 2045.

How do you know there isn't?

>>8969192
I have exaimed all of them

>>8969191
We killed and ate them.

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If I am correct then it appears to be an Ebola

>>8968996
its the brita snail. he squirms around and leaves a trail while he's cleaning the water, thats how it works

probably just a floatfly

Does your cat show signs of regrets when it has done something it knows it shouldn't have?

>>8971999

Obviously never owned a cat.

>>8971992
What subfield of math is it in?

>>8971822
what the fuck.
I swear that this plant was grown all over the place in my old school in South East Asia.

>>8971840

it's often harvested in south east Asia so it might be it

did you see anyone taking it?

>>8971822
Kratom isn't a nootropic you fucking junkie.

>>8971642
Wrong.

There are many systems we can model behavior for all time. It may or may not be possible for us to determine the evolution of the universe on a small scale so that we can predict how everything acts. Then, that means we have no free will because our actions and existence were set into motion at the start of time.
At the moment, it is undecidable but it is answerable

>>8971642

seems like we're just along for the ride desu

>>8971706
So what is the observable difference between a world with free will and one without one? The existence of something that models the universe?

a lot

>>8971559
I guess I didn't mean a specific number but it would have to be in the trillions at least, right?

>>8971580
how deep would you want to go. And it would likely be in the nature of 10's of of billions.

If you want said city to self sustain with its own agragarian section and industrial portion, in the 100's of billions.

>>8971184
the fuck would you eat soil ?

>>8971190
Africans eat soil. Even when they live in Europe they still eat soil.
http://www.bbc.com/future/story/20160615-the-people-who-cant-stop-eating-dirt

>>8971190
Remember, science isn't about the "why". Plus, soil is a bit of a misnomer. "Lunar soil" isn't really soil, it's regolith.

>>8970584
Idk ask your mom
( I fucked her()

>>8970584
you could do it practically

>>8970599
kek

Do bacterias sleep?

>>8970536
It's actually pretty amazing that we still don't know for sure. I mean we spend about a third of our lives with it, but we don't really know why.

Anyway, it seems obvious that it has to do with brain function, considering what happens when we don't do it enough. Also, I think everybody made the experience to some degree that sleep helped reinforce whatever we learned or getting over emotional trauma. Children sleep more than adults, which probably has to do with increased neural plasticity. So it kind of seems plausible that during sleep there is some sort of maintenance going on in our heads. If I think about neural networks in computer science, I can imagine hat there's some kind of gradient descent thing going on in our heads.

>>8970543
I would just add that it's also probably beneficial for some metabolic functions unrelated to brain.
Unspent energy saved from not moving around can be used elsewhere.

https://en.wikipedia.org/wiki/Virus

They probably came from bacteria-like organisms, that showed parasite like "behavior". After some time they became totally dependent of other cells.

Some scientist think they come from rogue DNA strings i belief

>Are virus living organism?
No. They don't have their own metabolism

Why are there virus in the space, how do they survive?
Lots of viruses have envelopes, much like bubble wrap around an expensive vase. Some have clever lifecycle where they never ever see outside

Since when do virus exist?
Hard to guess.

How did they evolve?
I think some were likely retrotransposon-like strands of DNA that acquired an envelope. They likely all don't descend from one single virus. Not much is known about this

Where can't virus survive?
They're pretty frail. Not many places outside their hosts or vectors unless they're enveloped.

Are some living species immunized?
Yes. Though you have to kill the already infected cells rather than the virus copies alone.

...

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>>8969710
The PNS (hehe) has 2 subdivisions: the somatic and autonomic nervous systems. The somatic nervous system is comprised of sensory and motor neurons scattered across your skin, nerves, joints, and muscles (like you have any, fag).
The autonomic nervous system (ANS) controls the muscles you’re not conscious of-the ones that regulate digestion, heartbeat, breathing, glandular secretions, etc. The automatic shit. That’s a good way to remember it, actually. “Autonomic” and “automatic” both share the root word “autos,” meaning “self,” which is why you’re fucking autistic.
Now, the ANS has further subdivisions: the sympathetic and parasympathetic nervous systems. Think your puny brain can handle all this? These two are antagonistic, meaning that they work against one another. For example, the sympathetic nervous system would amp up your heart rate and relax your bronchi, while the parasympathetic one would slow down your heart and constrict the bronchi.

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>>8969714
The parasympathetic nervous system is there to conserve energy, and as such, it’s associated with rest and sleeping. You probably use this one more. It also acts to stimulate peristalsis in digestion and exocrine secretions. “Rest-and-digest,” basically. It:
>constricts your pupils
>stimulates saliva (you drooling retard)
>stimulates bile release
>contracts your bladder
>stimulates peristalsis and secretion
>constricts bronchi
>slows your heart
The sympathetic nervous system, on the other hand, is brought into play by stress. You know the phrase “fight or flight?” That shit. It:
>dilates pupils
>inhibits salivation (you should use it more)
>inhibits bladder contraction
>relaxes dem bronchi
>ramps up your heart rate
>inhibits peristalsis and secretion
>stimulates sweating and piloerection (no, not “pillow erection; that’s your dakimakura)
>stimulates glucose release and production
>stimulates orgasm (hey, maybe you do use this one)
>stimulates secretion of adrenaline and noradrenaline

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>>8969716
The brain is covered with this thick sheath of connective tissue called "meninges." This shit keeps the brain anchored in the skull, reabsorb cerebrospinal fluid, and generally protect that brain of yours. There's three layers to them: the dura mater, the aranchnoid mater, and the pia mater. Cerebrospinal fluid is the solution inside which the brain and spinal cord rest, and it's produced in little cavities called "ventricles" inside the brain.

>>8969570
Maybe hallucinogens.

http://lmgtfy.com/?q=lsd+new+colors

>>8969570
LSD eye drops.

https://ocw.mit.edu/courses/biology/7-342-the-biology-of-aging-age-related-diseases-and-interventions-fall-2011/

>>8969433
We have. It's not available to people with a net worth less than 100 million though.

>>8969435
Sweet thanks for that link, I'mma check out those readings when I get a chance