Archived threads in /sci/ - Science & Math - 1119. page

>>8524633
The initial conditions obviously. Actually string mechanics is a little more complicated than baby's first parabolic PDE though.

>>8524633
I learned about the one-dimensional version of this PDE 2 weeks ago, cool stuff

>>8524633
Wow op fuck off, this equation is so aesthetically unpleasant to look at, the way it is written. Kill yourself, bye

>>8517944
maths more job prospects than compsci.

Pic related: my face when i complete a proof with an especially illuminating logical relationship.

>>8517950
How so? It seems like it's all academia/actuarial/business related. Not that those are terribly bad, just doesn't seem like there's a lot out there.

Dna counts as automated learning (on a large time scale), right?

>>8524743

Have sex with a woman, force her to give birth. Indoctrinate the child.

>>8524800
That's just normal intelligence

both

>>8524650
A bit of both.

>>8524650

very difficult, bordering on impossible to parcel out the contributions. I tend to think it is environmentally very flexible and you can see that even by just observing other primates and mammals. However, there are biological differences in the sexes so it is logical to think there are some psychological differences (we already see this in some hormones/neurotransmitters) and that these have some effect or predispositon on social structure out of implications from sexual selection and parental investment. I do think though, genetic effects cannot exist without environmental (and partly genetic) sandpits which we ourselves can construct and in away genetic effects might depend on that. I think we can manipulate it. I think theres no teleology in biological roles necessarily and any behaviour can be permitted so long as it is in coherence with selectionism. I think heritability also doesn't effect the malleability of a trait.

>>8524266
>to violet*

>>8524266


If i told you the truth THEY would probably kill me.
shhhhhhhhh

>>8524266
>same old red to viotel bunch
wouldn't this just depend on how our hypothetical eyes/brains were constructed to perceive?

>>8524257
No it doesn't. The methodology is valid, doesn't mean the results are. Move along, you cretinous fuckwits.

>>8524287
Do you have a single fact that backs this up?

Also - anyone has any info about that CubeSat with EM drive? I can't find any sources online.

>>8524090
Why doesnt the character with telekinesis just win every fight by crushing the opponents brain.

>>8524093
Thanks for the idea, might use that midway through, but I gotta make it tougher than just that to keep the story interesting. I plan to have the opponents have their own defenses to keep it from going Mary Sue.

>>8524090

What defense is there to that though?
"Oh, I'm just gonna crush those veins in your brain and you die".

As an RPGer, I've always found manipulating kinetic energy to be bullshit, coz you can pretty much manipulate the energy and position of atoms.
Make artificial gravity by moving things superfast in a localised space. Crush, scatter or disintegrate things by imparting energy to atoms. Move fast by imparting energy on me and my surroundings. Halt harmful objects in their tracks. generate or remove heat by providing absorbing ambient kinetic energy.
Cough, bullshit, cough. Though I don't know how stringent you'll be in your world.

There is no real way to make it not bullshit. Either your character is an idiot and can't apply his abilities fully, he's OP af and is only hampered by his crippling social anxiety and poor fashion sense, or he's restricted in some ridiculous way that pretty much makes it that "oh, i don't have telekinesis, i just have this really limited and totally situational 'power' ".

As for this pyromancer fellow, you'd need to define what he does. Does he manipulate the thermal energy of objects, causing spontaneous combustion? Does he just project flame (and if so, how? Fires gotta burn something)? Is it FMA Mustang style air modification?

It's difficult because of the level of complexity.

The rudimentary AI we've created so far is already too complex to "understand" how it actually functions. As a result we don't even know how that works, never mind a human brain.

>>8524063
But its not so complex in a way that it appears incredibly random does it? for example, if you think about trees, a certain pattern of neurons should fire right? and if you think about trees the majority of the same neurons should fire again, I don't know if its true, but I doubt that thinking about the same thing twice should result in two totally different results.

After looking at this concept with more detail and probing shouldnt we be able to draw any conclusions?

>>8524058

The brain is a spiritual and not purely physical process. Even the ancient Greeks knew that.

>>8523801
something like 98% of people who buy homeopathic shit already know that it is not scientifically proven to work

>>8523838
I have been given this stuff for all my infancy (plus antibiotics but whatever), my mother and brother whom I do not consider unreasonable people use them.
I remember when I needed some cough syrup she gave me an homeopathic one, didn't work, she still bought another one.

>>8523801

This will just make lay people distrust science even more

>>8523794
>Get me to Mars and back with enough fuel and a spacecraft that is affordable for NASA.

That's easy...

wait, is your survival essential for this mission?

Because if we just loaded you up into a little coffin thing, we could probably use a long term Hohmann Transfer with a RTG powered ion drive to get you there in less than a decade, and then do a gravity transfer back to an earth intercepting orbit, followed by lithobraking.

Although, it would be easier to just cremate you instead of putting you in a coffin, and just send the pile of ashes that used to be you... water is heavy.

Surviving is the hard part, but you could probably do it with a nuclear engine easy enough, although i'm not sure how much that would cost, or if blasting a nuclear reactor into space would violate international treaties.

So, i;ll get back to you on that one.

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>>8524099
(continued)

Sorry, that was kind of morbid, wasn't it?

The realities of space travel in interplanetary distances, ESPECIALLY when you are talking about long term life support accommodations, are tricky, costly, and complex.

Probes are significantly cheaper and easier, because crew, crew spaces, rations, air supply, water, filtration, rad-hardening, artificial gravity (yes, you WILL need it for interplanetary voyages), etc, weigh a LOT, and significantly impact your spacecrafts propellant ratio.

This problem can be somewhat offset by using nuclear engines whose fuel efficiency is greater than chemical rocket propulsion ISP's, but as previously mentioned, I believe there are some "Concerns" in blasting a multi megawatt class nuclear reactor into space on top of a disintegrating totem pole made of controlled explodium.

However, there ARE plenty of designs that already exist for missions such as this, but they probably aren't real cheap.

it would probably be more economical (in the long term, with multiple missions planned) to first set up a lunar mining base, and maybe a lunar space station (Stanford torus type) for processing/construction, because lifting materials off of the moon is by far easier and cheaper than lifting them from earth

Although, if this is a bit more effort than you wanted to put into a mars mission (maybe you just wanted a single mission), I would probably suggest visiting this site:

http://www.projectrho.com/public_html/rocket/realdesigns.php

IT is an AMAZING web resource for all things rocketry and space related, and the list of conventional designs (even those created by NASA) is simply staggering.

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>>8524107
There are other theories concerning lift off from terra, (besides just straight up rockets), that are currently being researched/developed.

The "Skylon" spaceplane (pic related) uses an innovative hybrid engine concept, centered around the supercooled, turbocompression of incoming air to mix with onboard fuel, thus reducing it's propellant fraction (weight saving) and allowing a single stage to orbit style configuration.

Research into controlled fusion reactions (stellorator, laser confinement, etc) could potentially be a game changer in space access that would open up the solar system to exploration and colonization by reducing propellant fractions on lift-off vehicles (single stage lifters) to a point where space access could be as affordable as less than $100/kg

Although, as far as I can recall, we still have not achieved a self sustaining fusion reaction in laboratory settings, so that's still a ways off, unless some novel approaches to controlled fusion can be discovered.

>>8523620
>Like today you are basically screwed bc math is in everything.


people like you are meant to be wage slaves, doing the jobs we haven't made robots for yet.

Know your place, the sooner you accept it the sooner you can kill yourself.

>>8523638

Didn't say I was bad at it faggot. I just hear multiple people always complaining about so I came here for everyones thoughts.

>>8523638
He's right. Math is in everything. There's no way around it.

The name of your school may effect where you can get papers published. That said, a research pipeline is also quite important.

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>>8523667
Tell me a bit about yourself. What is your experience with research opportunities?

>>8523705
My experience is that I don't like publishing QUALITY research papers for the sake of publishing papers, nor do I like having vindictive assholes with inflated egos run my life all for the chance to get the exciting opportunity hone my grant writing skills for the next few decades.

entry-level:
https://en.wikipedia.org/wiki/Iannis_Xenakis
https://en.wikipedia.org/wiki/Aphex_Twin
https://en.wikipedia.org/wiki/Karlheinz_Stockhausen

>>8523579
My main inspiration when it comes to the music i produce is Aphex Twin, currently trying to use pictures as patterns to create rhythms:
>see the banner
https://soundcloud.com/testdemopage121

Hadn't heard of Iannis before thank you...

>>8523574
bump

>>8523504
1+1=

(a) 0

(b) 1

(c) 3

(d) -1/12

B.

Its either correct, or it isn't.

>>8523268
Depends. If you ride for the same amount of time in non angled rain, faster will get you wetter

Yes because you cover more area

>>8524142
Also the wind is drying and moving some of the water off you when you on the bicycle