Archived threads in /sci/ - Science & Math - 59. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
>Professor explains recursion using dominoes
>>8157412
>Professor explains recursion in terms of the mu-recursive functions
>Professor explains dominoes using recursion
>>8157412
>professor explains continuity by "no leaps"
What makes a person themselves? Is this consciousness separate from all personality and behavioral traits? I.e. if a person's "consciousness" could be moved from one carrier to another, would any traits survive the transfer, or would they essentially be a new person? And finally, is there any possibility of such a transfer ever happening?
>please no spiritual shit, looking for ideas with at least a little bit of plausible basis. Thank you for answers.
>>8157248
How could you ever conceivably test this by modern means?
The integrated information theory is pretty much the best explanation we have right now for consciousness.
As I understand it, if a physical system of inputs and outputs is sufficiently complex and integrated, a consciousness naturally arises. However, the system must be very causally connected, meaning my consciousness is distinct from your consciousness and just because two people think very alike it doesn't create a consciousness between them or merge their consciousnesses.
Also, you can't not be conscious. There's no such thing as inexperience,...
Comment too long. Click here to view the full text.
>>8157248
>What makes a person themselves?
their unique biology, history and location.
>would any traits survive the transfer, or would they essentially be a new person?
well if you change the biology but preserve their history and location, then only the biology would change, no?
what do you mean by "new person?"
you aren't the same person that started this silly thread, your history and biology have changed since then....
Hi /sci/,
This question is probably a bit amateur for this community, but for some reason I'm having a hard time finding the surface area for this shape. I'm digging out a garden plot and my sister gave me somewhat odd measurements to go off of. I've drawn them out.
I keep getting different answers depending on the technique I used. I think it's 948 square feet but I also got 870 square feet.
>>8157205
I don't need an exact answer or anything just a rough estimate so I can order enough top soil and so that I know I'm on the right track.
It kind of threw me for a loop considering I have no angles to work with aside from the one 90 degree fence line in the bottom right.
>>8157205
OK I'll bite. Draw a line from the bottom left corner to top right. This divides it into two triangles. One triangle is a right triangle so the base and height are easy to determine. The hypotenuse, which is the third side of the other triangle, can be found by pythagorean theorem. Thus you know the lengths of all three sides of the other triangle, and can find its area using, e.g.,Heron's formula.
>>8157205
~650 sq. ft. using an online calculator
someone explain to me why the integral of
[eqn]6/x^3[/eqn] is NOT 6lnx^3, therefore 18lnx
>>8157190
Because it's -3/x^2. Why would it be something else?
think of it as 6*x^(-3)
>>8157190
>18lnx
Because the derivative of that shit is literally 18/x
This is why if you don't think of integrals completely in terms of anti derivatives you are bound to end up at Mc Donald's sucking dick at the playground.
All right /sci/, lets come up with some ideas and brainstorm how to accomplish said ideas.
>>8157049
Ok i'll start. Using overly complicated rube goldberg machines to sustain our civilization instead of oil and fossil fuels. It may take up a lot of space, but with the technology and capabilities we have now, I think it could be done.
>>8157049
Prove OP is a faggot
>>8157060
This is actually really genius. If we have enough laborers constantly building the future path of the apparatus faster than it completes its motion (not hard if it's sufficiently slow), we will have literally unlimited kinetic energy.
We could make a giant circular tunnel like the LHC, and have a few hundred or a thousand people constantly resetting large domino-esque blocks.
Does anyone know what C^3 take away the hyper planes defined by x=y, x=z and y=z. I honestly have no clue how to even go about this.
>>8157036
By C^3 do you mean the complex vector space?
>x=y, x=z and y=z
Do you mean 3 subspaces for R 3?
And what the fuck do you mean by 'take away the'. Do you mean the '-' operation in set theory?
Then I may be able to answer.
You know what, just fuck it. Can you post the question in mathematical notation instead of bumfuck stoned descriptions?
>>8157048
I dont know how to use the notation in /sci/ but for your questions.
Yes the complex plane.
No I mean the sub spaces defined by the equations. For x=y its the subspace defined by vectors of the form (x,x,z) where x and z are complex numbers.
Lastly yes I ment the set theoretical '-'.
Sorry for the confusion.
Okay, for my own purposes I will be working over the reals. C^3 is isomorphic to R^6, whatever.
The equations x=y determine the subspace (a.b,a,b,c,d) where all those variables are real numbers.
x=z determines (a,b,c,d,a,b)
y=z determines (c,d,a,b,a,b)
Note that these subspaces are all isomorphic to R^4
If you join them all together you get the subspace (a,b.c,d,e,f) where either (a,b) = (c,d) or (c,d) = (e,f) or (a,b) = (e,f)
If any of those conditions is true then that vector is where we want it.
I don't even know if I'm...
Comment too long. Click here to view the full text.
>In the future we're going to upload our consciousness into computers
Can someone explain this meme?
>>8156798
It's a pipedream of dualists who want to believe that mind can be separated from the body.
>>8156798
Singularity-grade bullshit inspired by teenage science fiction.
>>8156798
Yes.
Sometime in the future we are going to be able to transfer our consciousness into computers.
Well /sci/?
>>8156706
Real number fags
BTFO
T
F
O
easter bunnies are uncountable. yep, still holds.
>>8156706
>What happens if I replace "Easter Bunnies" with "Easter Bunnies" in your statement? Do you still hold to it?
I've been reading up on vitamin D the past couple of days since someone said being deficient, which I am, might be a bigger problem than I thought.
But there are lots of places with crazy different standards for the amount you should take. I've seen one place say 600 IU daily and another say 6000 IU daily.
So how much do I take?
Dude, just stand in the sun 10 minutes a day and you'll be fine
Whats your ancestry? Depending how northward you are from there you need to match your dose to.
Basically you can take as much as you want, it's one of the few vitamins that doesn't really have a hard limit, just take like 1000 and see how that works, I know people who take obscene amounts of it but I dunno if that's ever a safe idea even though apparently you can
If a planet come near another planet, their magnetic fields do something to avoid, or at least try to avoid collision?
>>8156487
No?
Most celestial objects don't have a nice magnetic field
Planetary magnetic fields are far too weak to be relevant.
>>8156487
What is this? Is this some kind of a joke? Jupiter, Uranus, Saturn, and neptune have the same planar trajectory?
This probably belongs on another board, but an anon a while back gave me a link to a wonderful place where I could read textbooks and whatnot for free. I'm trying to read up on tensors and whatnot (inb4 brainlet, I know) and pic related or something similar seems like a good place to start.
As a poorfag, I'd appreciate a link to the land of piracy I can't dig up on Google for some reason.
>>8156418
nah
was it libgen
http://gen.lib.rus.ec/
book in op's pic is there
What's the difference between direct sunlight and for example the sunlight you get through a window/glass? Or shade? What changes?
it loses its intensity to a degree. thats about it
>>8156325
that's it? how much intensity does it lose? is there a measurement for this? i'm sorry, me and science are strangers, but this is kind of important, you'd be saving my life science bitch
>>8156330
The atomic sctructure of the glass does not absorb electrons so the photon particles go right through it without losing energy, but its also reflective to a degree, also there are lots of other shit in the glass. So I'd say its between 1% to 4% sunlight energy loss overall.
Hi /sci/!
I am using an analytical balance for gravimetric analysis of samples.
At the beginning of the day, I weigh initial weights of my dust collectors, plus a field blank and "weighing scale blank." The "scale blank" is then left sealed beside the analytical balance.
Ideally, the "scale blank" should have no weight difference since it is sealed and equilibrated to the same conditions that the balance is subjected to.
However, when I measure the weight of the "scale blank" after 12 hours during post weighing...
Comment too long. Click here to view the full text.
>>8156277
What kind of model do you use?
>>8156287
It's pic related. Do you need a brand or any more info?
>>8156296
Nah. Was just wondering if it was a Mettler.
What's /sci/ think about neuroscience?
>>8156208
Monkey torture kicks ass.
neuroscience
more like
memeroscience
XD
>>8156208
I think it's awesome. I just did brain surgery on a rat.
What are your opinions on transhumanism /sci/? Are your for or against human animal hybrids?
>>8156153
I support it and I guess I don't have a problem with hybrids
I appreciate the /thread OP.
I'm a pretty memecore transhumanist so I've hopped on the cyborg bandwagon
Never heard about animal hybrid shit, but whatever keeps our consciousness going legitimately fucking do it.
>>8156156
I'd say it would make our species less lonely in a way. Other intelligent life to fraternize with even if we created them.
