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Archived threads in /sci/ - Science & Math - 93. page
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Is it scientifically accurate to say that everything that dies once lived and that everything that lives eventually dies?
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>>8451374
That's more of a philosophical statement than a scientific one
>>
>>8451374
Death is defined by previous life, so yes to the first one.
Yes to the second one because the universe itself will die.
>>
>>8451462
>Yes to the second one because the universe itself will die.
>the universe itself will die.
>universe
>die
>will

you keep using that word. i do not think it means what you think it means.

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Is there an actual, biological difference between a person's gender and sex?

Is transgenderism a mental disorder, and if so, is reassignment surgery really the best way to go about treating it?
6 replies and 1 images submitted. Click here to view.
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>>8451358
>Is there an actual, biological difference between a person's gender and sex?
Define your terms and this might be a meaningful topic.
>>
>>8451358
>Is there an actual, biological difference between a person's gender and sex?
Generally, one differentiates between chromosomal gender (If you have a Y chromosome, you are male, if not then you are female), hormonal gender (if in certain phases of your development certain hormones have a certain abundance in your body, your physiology will end up more male or more female), and psychological gender (Whatever you subjectively identify more with).

Is it real? The first two,...
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>>8451358
>>8451371
It is the best /current/ solution. Just like back in WW1 the best current solution to an infection was amputation rather than antibiotics. I'm sure in the not too distant future there will be a better solution than chopping off dicks and boobs.

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Heya /Sci/-figs. I have a question that I want to know an answer on multiple fronts. Like Etymology and Physics/Space.

Obviously most of us here know what Supernova/Supernovae are but I want to know. What exactly is a "Nova" or "Novae"? When trying to google this sort of stuff I get differing results and contradictions.

What is a Nova both in meaning and in space and physics? Obviously a Supernova is a super version of a nova, but what the fuck's a nova?
9 replies and 2 images submitted. Click here to view.
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>>8451302
A miniature version of a supernova.
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>>8451302
Northern Virginia. Super Nova is greater DC area
>>
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https://en.wikipedia.org/wiki/Nova

>A nova is a cataclysmic nuclear explosion on a white dwarf

>Nova means "new", referring astronomically to what appears to be a temporary new bright star

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A friend has given me this code, anyone lend a hand in working it out? %53%6F%6D%65%74%68%69%6E%67%20%2C%45%64%67%79%2C%21
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>>8451291
>On the image
A bunch of computer instructions that had all their whitespace removed to give the impression of it being more complex than it is

>On your text
An encrypted message

When did these things become the same?
>>
>>8451304
he's trying to act smart
>>
put it into any url decoder and you get
Something ,Edgy,!

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Presuming a powder like soylent contains absolutely everything our body needs to function, absolute perfect optimized nutrition with all the macronutrients, vitamins (pic) etc, can humans consume it indefinitely?

Does our body metabolize liquid food as well as solid food? Will our jawbones diminish from not chewing? Are there any other sideeffects I havent thought about?

TLDR; Can we perform optimally on a liquid diet containing the neccessary nutrition?
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I dunno man
I feel like your shits would all be liquidy and you'd get real sick of it. Soylent is an interesting concept but I seriously doubt anyone buying it is not retarded
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>>8451289
Yes, people in fact do survive on all liquid diets, and if you want to go really far, you can survive on intravenous nutrition. I don't see your jaw diminishing that much, but you could chew gum if you were that worried
>>
Rec me a good diet /sci/

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Did Determinism generate Randomness? Did Randomness generate Determinism? Can anyone provide a single empirical delimitation between the two? If both operate in fugally then wouldn't it mean that neither is the Fundamental Causal Agent of things?
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>in fugally

Disregard the "in".
>>
Jimmy are you doing hard drugs again
>>
>>8451285
I wonder this too.. like why does a beaver have iron in it's teeth to make chewing wood easier?

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what if light is particles riding waves?
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Like, a photon?
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>>8451274
The question then is, what does "riding a wave" physically mean?
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>>8451274
particle, wave, photon are just different levels of abstraction for the same phenomenon. I prefer the wave definition just because I can woo girls by drawing pic related.

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what if we made alliance with an intelligent species that could eat hair
and grew non-vital proteinic protrusions we could chalk up and make dough of
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>>8451204
some energy is always wasted
>>
We might just have ourselves an ecosystem. If you replace hair/dough with poop.
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>>8451204
They would need to be able to integrate with our population and space. Also would need to equal our production. Also it would be nice if they could breath CO2 and shit oxygen.

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how does saying "lol fundamental particles are really just strings" actually reconcile anything between quantum mechanics and relativity?
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>>8451073
-1/12
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>>8451237
i hate this meme
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>>8451257
It's literally string theory.

So I've got pretty bad ADHD, but vyvanse and other meds make me not eat and also just fucks with my brain chemistry heavy.
I've started using nicotine to study, and it helps a surprising amount, with no side effects
(apart from a dry mouth, using cigarettes now, but going to transition to a vape when I can afford one).

Here's an article about nicotine and ADHD:
https://www.ncbi.nlm.nih.gov/pubmed/8741955
Here's one about nicotine and general productivity:
http://www.prymd.com/blog/benefits-of-nicotine/

What do you think /sci/?
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If you want to trade poor studying for poor physical health that's you're choice m8.
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>>8451064
lmao, see if you can get a prescription for a nicotine patch
>>
>I've started using nicotine to study, it helps a surprising amount, with no side effects
Audibly laughed very hard.

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What does /sci/ think about Matrix-style VR? Is it impossible? If it is possible when do you think it'll be available for commercial use? I just wanna sniff girl's feet and butts in it.
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>>8451061
Matrix-style VR is only possible in virtual reality.
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>>8451061
With enough computation power, I dont see any reason to suggest that it wouldn't be physically possible
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>>8451163
Do you think around 2060 would be a safe bet for it to be made available to people?

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Can you give me some good articles or any other kind of sources on why is nuclear energy the best (safest,cleanest,etc.).
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Google 'Chernobyl', 'Fukushima', 'Three Mile Island', and 'Windscale'.

Thank me later, you're welcome.
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>>8451042
Why are you looking for things that confirm your bias? Im a huge proponent of nuclear energy, so as far as Im concerned just looking for actual neutral information will be enough to tell you that its worth pursueing.
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>>8451148
>actual neutral information

Start >>8451140

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Are we trapped in our material body?
Even if we invented a way for us to copy our consciousness in digital form or in another body is there a way for us to experience that transition or are we bound to our bodies?
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>>8451000
>/sci/ - Science & Math
>Philosophy question
>Not Science
>Not Math
Threadly reminder that philosophy majors should post on >>>/lit/
>>
>>8451000
>>>/x/
>>
I was going to engage in learned discourse regarding this question, but I just noticed the sex robots thread.

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Because the only part of sleep that we need is REM sleep, which occurs pretty soon after falling asleep, do we really need to sleep for 7-8 h?
39 replies and 1 images submitted. Click here to view.
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Not really, you can do fine with less or more sleep.

I'm more interested about why my waking time is synced to some particular hours. Irrelevant of when I go to sleep, I always can wake up only in some times of day. I don't use clock alarm, and I can wake up on my own only around 2:30, 13:00, 17:00 and 20:00. Why is that so?
>>
>>8451016
Probably got something to do with light in your house.
I believe that you should be able to replace an alarm clock with a light that slowly turns on about half an hour bwfore you need to wake up. If anyone has experience with that it would be lovely if you could share.
>>
Needed sleep depends on roughly 3 things. Height, mental exertion, and physical exertion. You can also include injuries should you have any that are still healing. Diet will play a part in you being tired, but it's not exactly related in the same way.

Average 6' college students need 8 hours of sleep
5'6" needed 7.5 (students were studying sciences, engineering, or computer science degrees at a pace of 6 school hours a week. Homework was not quantified.)
All sleep was standard sleep with no deprivation cycles or supplements used. As close as...
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What is the most mathematical non sense you can come off with?
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>>8450940
>the most mathematical non sense
wat
>>
(2x) sin +2^2cos
>>
>>8450940

x^2 = x+1

for

((5^1/2)+1)/2

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>Experiencing the 4th dimension is like seeing the universe from inside an infinite spinning tube, the rotation speed of which is governed by stimuli such as light and sound and which is infinitely kept in rotation by energy which ceases to take shape of physical things and instead is what can only be described as a liquid flow.
>Just a theory.
Moving this thread from /b/ because of goatfuckers.
Original thread
>>>/b/710229032

tl:dr we're discussing the...
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woah dude, show this shit to joe rogan that blows my mind
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>>8450925
Also quantum mechanics suggesting 21 dimensions and perception were brought up
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>>8450928
Why do you say that?

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What's the bitrate of human spine?
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>>8450910
https://warosu.org/sci/?task=search&ghost=&search_text=bitrate+of+human+spine

only shitheads post the same thing again and again
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>>8450913
alright
>>
>>8450913
I want to know the answer to the question. Since it wasn't answered in the previous thread, I decided to create a new thread to serve the same purpose.

I have a psychologist-administered IQ test score of 127, yet I've spent the past five hours failing to come up with an algorithm which generates all the permutations of a given string. I've given up coming up with an elegant solution and have been doing God-knows-what -- I'm at the point where I've been trying to create usable methods for a class which manipulates a depth-mapping between elements of the string so I can choose my permutations based on how 'deep' each element is in relation to the others. This is proving unhelpful.

Why can't...
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pls help
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>>8450772
>What the hell is wrong with me?
False positive buddy, there's nothing left to do.
>>
...so I'm not a programmer...
I don't know what class and methods means but..
Why isn't this just a sort algorithm? Brute force.
Since it is a permutation, you don't have to worry about redundancy or efficiency.

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What does/sci/ thinks about race? Are there major differences between them?
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>>8450771
They're due to mostly shitty unchristian culture
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>>8450771
I honestly think culture has much more influence than race and yet everyone always ignores it to argue about race.

For instance, Chinese culture for the last century or so has produced 3 generations of ruthless ass-holes how have no sense of honour or moral scruples. Chinese people a 1000 years ago were much more civilised and Honourable.
>>
it's an invitation for shitposting is what it is

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Well... This is bad...?

>http://www.dailygalaxy.com/my_weblog/2016/08/nasa-earth-is-vulnerable-to-invisible-microscopic-black-holes-universe-is-filled-with-black-holes-fo.html
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>>8450750
OMG WORLD IS ENDING!
Same old thing every month.
At least they aren't protesting to destroy the LHC now, though.
>>
>>8450757
Nothing to do with what I'm trying to say.

Rather: Does this mean that we fuck us at any time?
>>
>>8450761
Is that new to you? Look at the amount of material in the universe. Be happy that you can life for atleast 100 years without being hit or eaten by a blackhole.

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Why doesn't any billionaire extradite this slow program. just toss them 10 billion and start colonizing Jupiter or some shit
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>>8450672
>extradite
not the word i was looking for but pretend i said what i meant
>>
>>8450672
Maybe because (as I understand it) NASA needs government approval for projects, whereas privately people can build rockets, go to planets etc. as they please (maybe? Not sure).. But hey, just glad to see Tesla/Musk, Boeing, etc. all working towards interplanetary life.
>>
>>8450672
Because NASA is more interested in science. SpaceX and the rest are just engineering.

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Which set is bigger, A = n or B = 2n, and n tends to infinity
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>>8450649
This reminds me: I once took a philosophy class wherein the grad student leading the discussion section claimed that the set of integers was "twice as big" as the set of even integers.
>>
keep your pedophile cartoons and bring more from /a/
>>
>>8450651
>This reminds me: I once took a philosophy class wherein the grad student leading the discussion section claimed that the set of integers was "twice as big" as the set of even integers.

Yeah this is a common misconception. I can map the integers to the even integers with f(x)= 2x. similarly I can map the even integers to the integers by f(x)=x/2. It's a bijection so the idea that one has more elements than the other is ridiculous.

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how hard would be to code a bot waifu AI for pol?

I want to learn to make one bot AI.
where do I learn?
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>>8450630
Tay already loves pol
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>>8450642
she got shutdown though.
>>
Stop starting this thread everywhere.

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how much would it cost to send a rover to Europa?
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>>8450617
Three fiddy
>>
>>8450617

The ESA's Jupiter Icy Moons Explorer mission is budgeted at $1.1 billion, which could potentially include a Russian-built Ganymede lander called Laplace-P budgeted at$1.52 million, and they've said that a Europa lander isn't "within the scope of the mission's budget."

So more than \$1,101,520,000 I guess.
>>
>>8450617
It's a big sum

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Statistically speaking, what are my odds of getting dubs on a random post?

I bet 90% of /sci/ gets this wrong
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>>8450523
sigh....

fifty fifty either you get dubs or you don't ha ha
>>
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>>8450526
this was painful to read
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>>8450539
only half the time. It's either painful or its not. 50 50

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So I must give my cat a tablet, but the tablet is overdosed. I calculate that I need to give 40% of the tablet.

So How do I know where is the line dividing the disk into 60%-40%, once I suppose that the product is homogeneous in the tablet ?
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>>8450517
0.4*360 degrees
>>
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>>8450519
yeah but I do not want a slice, because it involves two cuts. I want to cut once.

the line red is half the pill, but I want to know if the green line is good for dividing into 60-40
>>
>>8450533
I feel like you're disguising your homework problem as a practical problem. If you need to dose it, there are lots of better ways to do it. Like crushing the pill and weighing it out on a scale

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Do they exist /sci/?
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>>8450448
Yeah probably

Will any of them be close enough that we aren't also separated by geological time scales when it comes to travelling?

Probably not.
>>
There are pretty good chances that there is alien life in our solar system.
>>
Yeah, you live on one planet with life already.

Given the age of universe and how short there have been life on Earth, it's also possible that on many planets organisms died already. Or haven't developed yet on some other.

We might as well never see nor discover any alien organisms. Either due to humans dying out, either to external factors or self destruction, or ceasing to seek them, after abandoning material world.

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Is there really a difference between natural phenomenon and magic, other than one being labeled such because we understand it?

How is gravity not magic?

And how is creating a chemical to help stomach pain, for instance, not potion making?

Is it just perception? At what point of understanding does something go from being magic to science? Alchemy to chemistry?

If spell-casting was/is real, and that was measurable and observable phenomenon, would than that be science?

>Oh silly, magic isn't real, spell-casting is...
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>>8450440
>Is there really a difference between natural phenomenon and magic, other than one being labeled such because we understand it?
Well, ignoring the mysticism that surrounds 'magic' no, not really.
What point are you trying to make? It' just semantics.
>>
>>8450440
The terms are relative. Magic can just happen, supernaturally. Science is reproducible with measures.
>>
Magic has connotations of mysticism and has oogy boogy elements. The big difference between the two is that scientific phenomena happen because of rules. Magic things happen not because of sensical scientific laws but just because they do.

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W-what now, /sci/?

I tried to calculate it on my own and I failed.

And now Wolfram failed.

What am I even supposed to do in this situation?
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>>8450404
Chances are, there's no analytical solution to this.
>>
It means no function can describe it. If you really want an anti derivative solution you need to define it and study it's properties.

You can use Riemann sums to an arbitrary number( use a shitton for better accuracy)
or put it into mathematica or whatever program you wan to use.
>>
>>8450406
That's fucked up because it's on my textbook and you're supposed to do it with U Substitution. And no, they do not give away the answer.

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Someone please explain to me why the integral of e^u equals e^u. In my head it makes sense but i cant prove it.
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>>8450373
[eqn]\int e^x[/eqn] hehe
>>
>>8450373
what is the derivative of e^x??
>>
>>8450373
because ${d\over dx}e^u=e^u$

duh

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