Archived threads in /sci/ - Science & Math - 302. page
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Anyone know any good books or online resources on the brain?
>>7938380
I'm not an expert by any mean on this, but I've seen some interesting TED talks on the subject, like it's ability to grow back neurons and stuff. 'Was really interesting!
>>7938380
There are some resources but none of them is scientific. Neuroscience has yet to become a rigorous science. Currently it is still infested with a lot of philosophical mumbo jumbo and blinded by ideological dogma.
Who would /sci/ consider living geniuses? The Da Vincis, Gausses, Wittgensteins, and Turings of our time.
Pic related.
>>7937486
The actual anonymous researchers who don't need to have others advertise their intelligence.
>>7937486
Ben Bernanke
>>7937486
GauB
What does /sci/ think about genetically modified foods? Is it safe? Should it be banned? Should labeling be mandatory? Is Monsanto going to take over the world's food? Discuss.
>is it safe
yeah
>should it be banned
no
>should labeling be mandatory
yeah, consumers being informed is never bad
>is monsanto going to take over the worlds food
they already have
i think biotics are too complex for humans to be manipulating it on that (elementary) level. anything more than grafting is blasphemous and irrespective of the complexity of life
let us remember that near every major invasive species was a human effort at controlling the environment and failed. granted, life will always change, and in the grand scheme there is never really "good/bad"
So my wife and I are having twins. Two weeks ago the doc drew some blood for a screening test that will look at the little bits of fetal dna in her blood and determine if we are having a retard. They also said that they could kind of determine the gender - if they detected XX chromosomes only then we are having two girls. If they detected a Y chromosome then there's at least one boy, but beyond that they couldn't say whether it's boy/girl or boy/boy.
Got the results today. No retards in there. Y chromosome detected. At least one boy. Then the doctor said -...
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>>7937272
This has to be an elaborate troll
There is at least one boy
No information on the other kid = it's as if you had two separate kids but you didn't do any blood test for the second one.
>>7937292
This has to be a blatant troll
3 options
Boy boy
Boy girl
Girl boy
So 2/3th chance it's a girl
>>7937292
>>7937304
no troll.
The way I see it, there are 4 possible outcomes with baby A & B -
A = girl, B = girl
A = boy, B = girl
A = girl, B = boy
A = boy, B = boy
So right off the bat we can eliminate the top one. We know that ain't happening. That leaves three possibilities. In two of those three, we are having a girl. So 2/3 chance of the other baby being a girl instead of 50/50.
Is this the wrong way of thinking about it?
Hello /sci/entist's
What are your thoughts on climate change? And what would be the most effective way to reverse it.
> climate change meme
>>>/x/
>Thoughts on Climate Change
There's no way the human race is going to survive it. We fucked up, and we will pay for our hubris with blood.
>Best way to combat it.
Voluntary extinction. I've already taken the first step and sterilized myself.
If we compare the human brain to a computer
>yes I know, le pop-sci "brain is best compooter" meme. Just hear me out.
Any computer needs hardware components and software. The hardware for computers is made up of transistors and electrical components, the brain uses biological versions (neurons, synapses, etc...) and even though they work in completely different ways, they still accomplish similar tasks. The computer's hardware is used to run software (a non physical process represented by and run on physical components in certain...
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So if we compare the two, thoughts and conscious brain processes parallel software. By this logic, would subconsious processes be the brain's BIOS? Could a person's personality/consciousnes be considered the brain's Operating system? Would split personality disorders be a dual boot brain so to speak, and could someone basically create a blank partition of their brain or emulate another mind or something like that to learn another language from scratch and think in that language?
Also, why do we think in a language? Why not have raw thoughts and ideas with no words attached? Babies don't have a language to think in, but surely the still have thoughts. Thinking in a spoken language just seams so inefficient. I can have an idea and have it flash in my head in an instant and understand it and use it, by most of the time I have a voice in my heads slowly speaking out the idea. Why is this, and can we revert back to "raw" thought without language?
>>7936128
>Also, why do we think in a language
Go ahead and solve this spatial reasoning task and tell me if you used language to do it.
Your posts are so riddled with assumptions and lapses in reasoning that they're not worth addressing. You just need to read more about the topics you seem to believe you have a firm grasp on.
The F1 rocket
http://history.msfc.nasa.gov/saturn_apollo/documents/F-1_Engine.pdf
Nice. The metalwork is in fact very simple. Simplicity=great design.
i don't understand this rocket. when there's such a big exhaustion nozzle, where should all the fuel come from? I mean, where should the black powder get stored?
>>7935855
You mean the F1 Rocket Engine.
/sci/,
I wish to devote my life trying to become immortal. why? because I hate death.
I'd like to spend almost every working hour of the rest of my life trying to live more.
what's the most optimal way to go about that? what science areas should I master?
also, any talk about immortality and anti-aging is welcome
>>7935141
If you dedicate your life to extending your life, you'll greatly regret it when you're old and weak that you didn't do anything else. You, like us, have been born way too early for immortality... even if science somehow found the key to immortality, you will still die from cancer a few years later... Just do what you like and don't waste your life.
>>7935147
>Just do what you like and don't waste your life.
And what activity do you cosnider 'not wasting your life'? After giving it much thought for few months, I've come to the conclusion that ANY activity, other than trying to work on immortality, is a waste of your life. Working for some bank or other company that's doing pointless stuff, like trying to make money, is a waste of life IMO. Why? Because you'll be 6' under in no time.
I'd really...
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>>7935141
>devote life trying to become immortal
>devote life to become immortal
>trying
>devote life
Continue doing what you are doing already is the most optimal way.
Meanwhile I am going to advance the sciences and when the time comes for my current vessel to die I will orchastrate the transferal of my soul to a new capable-minded vessel. I may not remember everything, but...
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>tfw your magnum opus is basic algebra
I'm not sure how to feel. On one hand the simplification has been incredibly useful to my work but on the other hand it's so simple no-one will take it seriously. Add into the fact that it isn't even new just existing theory neatly packaged.
It's not clear from your post, but I assume you speak about some thesis. Bachelor or Master thesis?
Then, in any case, nobody will read it. NOBODY, except you and your prof, and your mom might read the Acknowledgements. I'm not even kidding.
From a job perspective, unless you try to do a post-doc etc., it's good if you have working practice and intuition for linear algebra stuff.
>>7934843
>it isn't even new just existing theory neatly packaged.
Euclid didn't give a fuck about that shit. Publish and collect all the fucking shekels.
>>7934853
>thesis
top kek, I never even went to university. When you're making drones it's either total trial and error or whatever complex fluid mechanics that engineers do on propellers. So I did research and derived this one equation that tells you everything you want to know about your drone without wading through all sorts of calculus. Never seen it anywhere yet found it surprisingly accurate and useful so wanted to share it but /diy/ will say it's still too complex and /sci/...
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mathematician here
i study algebraic geometry. know a bit about a lot other shit. ask me whatever.
>>7934191
I'm thinking of taking algebraic geometry as one of my modules for my masters, any good references for it?
>>7934198
ravi vakil's book FoAG is easily the best book available in the subject, though it is quite long winded.
if you're a masochist, go with hartshorne.
for either, you'll need a strong commutative algebra background and eisenbud is really on the only game in town.
I prefer topology myself, but I find that algebraic geometry is quite popular. What attracts you to algebraic geometry?
Everyone always bitches about manned Mars missions and all that.
But it seems logical that at least going back to the Moon first and setting up some kind of base there would be the first step?
Why does nobody talk about new manned Moon missions
Politics basically. Laymen complain by saying things like "what's the point of going to the moon anyway?" "Why waste money on space when we have problems here on Earth?" "It's too expensive and it doesn't even do anything anyway"
You get the idea. Besides no sitting president wants to emulate the success of the past; they want to one up it because otherwise it'll make them look politically weak. There are currently 4 viable options to make a moon base (and general space travel) a reality. Listed on a scale of feasibility.
1....
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>>7933256
>But it seems logical that at least going back to the Moon first and setting up some kind of base there would be the first step?
Yeah, probably. It would also make a good successor to the ISS, providing a safe(r) environment to learn about long-term habitation in space and low-gravity.
>Why does nobody talk about new manned Moon missions
Because they think of space as a checklist of accomplishments, rather than an opportunity for exploration....
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>>7933354
To expand on #2 (I hit character limit), NASA basically used variations of the same fucking shuttle for about 50 years! When I first saw SpaceX's Falcon/Dragon combo my first thought was "it's about fucking time!". When a superior engine, fuel source, design, hard/software upgrade is developed (could be anything but I don't have an engineering background), the cost and difficulty of space travel will be decreased exponentially, allowing for more ambitious space goals without incurring too much cost.
Why do we hate pop science again?
remember: the more you eat the better you will feel about being fat
[reblog]
join us next time when Doctor OZ tells us how becoming a trans-sexual actually prevents certain types of testicular cancer, but first, let's have a look at this ad.
We don't, we hate pop-scientist faggots that like "I fucking love science" on facebook and talk about what a science nurd xD they are
>>7930027
this
>watches 12 year olds in skimpy clad outfits
>guys I watch it for the plot
I found this a few days ago, it looks easy as fuck but when you look closely it's not that simple.
I managed to find the angle alpha empirically (with GeoGebra) but I can't find a way to demonstrate it.
Help me if you can , /sci/.
inb4 unsolvable due to not on scale drawing
inb4 70°
non perfect english speaker here
>>7924511
sweet, that's one of those "tough-easy" problems, like the Langley triangle problem (slightly different angles). Hint: lots of isoceles triangles and an equilateral triangle. (Two angles equal <==> two sides equal.) You need to construct one point to solve it.
You can get BDA and EDC (via BCA), with those you can get the small angle opposite alpha. You can get the opposite angles in the center cross via DBA and BAE, then you have both angles in the little triangle that contains alpha, so then you can get alpha from that.
>>7924533
>EDC (via BCA)
nvm I dun goofed this doesnt work
Why doesn't /sci/ like philosophy?
>>7919346
It's not rigorous.
Not liking philosophy and not liking philosophers is different. Philosophers are generally uneducated in the physical sciences and mathematics, yet they seem to have lots of ideas about the validity of our work.
Fucking undergrads always talking about Hume and dropping shit over and over again.
>>7919346
>that pic
>chuckled
What are some of the most surprising mathematical facts or theorems you know?
Pic related.
What's surprising and what's not really depends on what you are comfortable with. For example the banach-tarski thing looks wierd as hell but it loses its luster once you study some simpler examples of the axiom of choice in action so you can get an idea of what's going on.
>>7919030
that an n-sphere's volume peaks when n=3 and then approaches 0 as the sphere moves into higher dimensions
>>7919045
Let's put it as surprising when you first learn about it.
