Archived threads in /sci/ - Science & Math - 163. page
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Debate everything related to:
-Terrafoming planets
-Eath-like exoplanets
-Space habitats/colonies
Will the humans be able to do all of this? Which is the best candidate for a human colony, Venus, the Moon or an Space Habitat?
wouldn't it be easier to just mine planets for resources and then live in artificial environments, ie space stations?
isnt transforming an entire planet to meet your physiological needs rather than creating your needs in an isolated area really inefficient?
>>8058559
I've always thought about space colonization like this. I guess it's about cost effectiveness
Would it be cheaper to: a) continually move the resources out of the influence of the planet to the station/next planet. or b) terraform the planet and use the resources there.
>>8058545
So far Photshop and blue/green colours in the palette are the most sofisticated terraforming tools we have.
http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/
So it turns out I've been wrong about this. All that philosophical talk about "is it really me anymore if all my cells are replaced" is just useless.
>>8058458
We knew that already
Sage
>>8058458
I understood that was bullshit since first time I heard it in elementary school. Who even belived that?
>>8058458
Why does it render that question useless?
I am currently making my project for my fucking liberal arts class pertaining to Abundance and Need.
I decided to tackle the topic of the world's food shortage and the solution I came up with is "The use of Artificial Islands for agriculture and it's effect on the world." A bit wordy, I know. I also have to do this myself because two of my teams members can barely speak English (Still love 'em though), and some girl that never responds to my texts or comes to class.
Instead of getting into specifics in the OP, just ask me about anything specific.
The...
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>>8058314
>some girl that never responds to my texts or comes to class
I fucking hate this type of girl, and then whenever she does show up she "has to leave early". Fuck you.
Okay, what kind of islands? Like those airports in Asia / China but for farming? Floating things as in a frame and then soil on top?
How feasable is this? I suppose such an islands incurs huge investments.
What about maintenance? Water and nutrient recycling, soil conservation..
>>8058319
Yeah, last thing she said to me was "I can't meet, I have a meeting."
Never said if she did the worksheet and she never sent me any sources that she was supposed to research and summarize.
>>8058320
I was thinking along the Dubai mindset. Redistribute sediment onto coastlines or raised areas in the sea to support the island.
Feasibility? Probably fucking non. I'm estimating 6 billion in costs for the project. But hey, hypothetical solutions.
Didn't...
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I don't fully understand IBM's quantum computer stuff. Am I a brainlet?
Very simply, normal computers work, either there's power going through a wire, or not. It's 1, or a 0, they're binary systems. What quantum states allow for is much more complex information to be encoded into a single bit.
>>8058281
sounds dumb
>complex information encoded into a single bit
then it wouldn't be a single bit
>>8058285
Regular computer bit is either a 1 or a 0, on or off. A quantum state can be much more complex than that, because as we know things can be both particle and wave at the same time and the uncertainty about quantum states allows us to encode more information into a much smaller computer. So that's what's exciting about quantum computers.
Don't get me going on this, I'll be here all day, trust me.
Any chemistry fag here? My fucking teacher mailed us an assignment over mail due to tomorrow. I don't have my books with me so I'm pretty much fucked. Can someone help me to name the organics bellow? Dutch fag here so english isn't that good.
Im seriously fucked /sci/. Please help me name the fucking organics
You deserve to fail if you are not able to check on the various internet pages how to apply the organic nomenclature.
>>8058236
>H3C
>not CH3
>>8058236
3-ethyl-2,4dimethylhexane
hexanoic acid
Hello /sci/. Math noob here that's starting trig next semester.Did anyone struggle with trigonometry? Do you still have the unit circle memorized after all the years since you were in it? Its very different than basic algebra(just got an A in college algebra). What are the best ways of mastering trigonometry? Tips, tricks, best text books etc? Thank you!
I'm halfway through a trig class right now, in what's probably the worst format possible: online course with no homework. Instructor posts lecture notes every week, gives us a weekly six-to-ten-question quiz, then a midterm and a final. Pretty much like teaching yourself trig from a textbook.
So I may be having a harder time with it than is usual. I'd say so far the really challenging parts were the first two or three weeks, when you're still wrapping your head around the basic concepts. After that it starts to feel more comfortable.
But then, I haven't finished yet. Might be speaking too soon.
As far as tips, before the start of the term, make sure you really understand translating and inverting functions- that will probably come up on, like, week 2.
Also, don't just look at a picture of a unit circle when you need to reference one; draw your own. That will help you commit it to memory faster.
Last thing: Khan Academy is great for trig. I've been pretty much entirely relying on it.
>>8058049
Memorize the unit circle, there's a pattern to it that's easily remembered once you get the hang of it. There's obviously more to mastering it, but that's a good start.
Deep web, does the mariana deep web really exist?
Also what is a closed shell system and can you really access Teslas experiments?
>fell for the meme
That pic is a troll image
where's that one image that goes through the layers and explains why it's bullshit
also >>>/x/
>>8057965
can you find me that pic please bro
reminder: if you're not mathematically modelling what you're studying you're doing it wrong.
why does the scientific method excuse such sloppiness? i'm sorry but writing your opinions in a diary isn't worth the paper it's printed on.
itt: mathfags with a superiority irrational
>>8057887
>t. diary keeper
>>8057882
writing your opinions on 4chan isn't worth the bytes its saved on.
So, I'm a an ugly guy in my 20s. I'm quite frustrated because I'm judged by my facial structure.
What I wanted to ask you is, do you think there is a possibility that in the future there will exist more means of improving one's face beyond plastic surgery, that would be able to turn someone's ugly face into an attractive one? Current capabilities of plastic surgery can't do that as we all know, you just end up looking worse, a freak. Please help me out on this one!
date outside your race
>>8057889
>date outside your race
Nop OP, but I've tried that.
Didn't really help.
Celebrity I resemble the most?
goddamn Stephen King, FML
>>8057881
like a buttload of problems in life this can be solved with tissue engineering.
How do we reach faster than light travel, whether it'd be traveling across the Sol System, to sailing across the galaxy? How do we do all this without the negative effects of time dilation?
>>8057785
become lighter than light
/thread
There is no way to travel faster than light itself, however a shortcut in space such as a wormhole can make it seem like you travel faster than light. Since you are taking a shortcut you will reach your destination far before light can do so (not counting the light that moves also through the wormhole). This is still not travelling faster than light but just reaching your destiny before light does.
>>8057785
We had this same exact thread earlier this week:
>>8046456
Hey /sci/, why aren't you into Kerbal Space Program yet?
>>8057664
>Not Orbiter
>>8057669
Poor cows, they can't handle the future.
>playing a shit game by retarded mexicans that hasn't changed significantly in nearly 3 years
epic
If I say [math]f:A \rightarrow B[/math] , f maps from A to B, is A the codomain or the preimage?
Give me a straight answer please. I want to settle this.
Given that [math]f:A \rightarrow B[/math] , are there elements [math] a [/math] of [math] A [/math] for which [math] f(a) [/math] does not exist in [math] B [/math] or aren't there?
>>8057602
*last question should ask "can there be" not "are there."
>>8057614
So the codomain of a relation equals the pre-image?
>>8057602
Both, but you prob mean codomain
And no there can't.
Say you had some subset [math] C \subset B [/math]
Then the pre-image of f restricted to C is the subset of A [math] \{ x\in A : f(x) \in C \} [/math]
That's how I understand it
I think I get the concept of "hypercube", but I can't completely understand it or mentally visualize it mentally.
Can you?
>>8057591
>mentally visualize it mentally
Oh gawd, forgive me anons.
>>8057591
yes, I can
>>8057591
>Can you?
yes. if you can't, then either you don't understand what 'visualization' means in dimensions greater than 3, or you don't understand the 'concept'.
So /sci/ how did you pay for college? Just graduated and I'm wondering how it gonna pay for it.
>>8057537
don't have poor parents
>>8057537
Student loan, help from family, part time job
How else do you think anyone pays for anything?
>>8057537
hack
banks
Lab accident thread
>accidentally make manganese heptoxide
>it was in an organic solution
>hand gets coated with manganese dioxide
>>8057406
wow, it made some areas of your hand white
>>8057406
You can get free welfare now!
have you noticed a change in your penis size ?
