Archived threads in /sci/ - Science & Math - 95. page
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>"DNA tests should be compulsory!"
what did she mean by this?
Btw, it's incredible how really every person ever has ancestors from all over the world. Really makes you think.
https://www.youtube.com/watch?v=tyaEQEmt5ls
Horrible acting tho
>>8123663
so that people stop being bigots focusing on appearances instead of trying to see each person for who they are.
>>8123663
>cucks vote fascist law in
>cucks build the infrastructure to crack down on dissenters
>now cucks want to build a genetic database of the whole population that can easily be repurposed for genocide
Hahaha. The pendulum swing is going to be glorious this time.
Will a large enough sample of pitchblende be able to enrich the U-238 enough to be warm enough to melt gallium?
Also, will it emit gamma rays?
I was wanting to try make a kinetic sculpture where gallium would flow in a physical simulation of plate tectonics, although I note that gallium is lighter when solid which may cause weirdness.
>>8123559
>Daily reminder that 4chan's first boards were /a/-Anime General, /b/-Anime Random and /c/-Anime Cute
Oh wait, I forgot. You are like 12 and just started coming to 4chan last week. Yeah, you wouldn't know shit about fuck right?
4chan boards may now involve a bunch of other subjects but the sticky cum that holds us all together, regardless of board, is anime. This is a website for people who like anime to come and discuss things that are not anime, with other people who like...
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>>8123712
Nah, I'm just someone who likes science and anime.
But seriously, shut the fuck up.
Stop spamming the board with drivel people won't listen to.
OP here, calm down and look at little piggy.
ITT we prove that the Kolakoski sequence has the same density of 1s and 2s.
It's defined as the unique sequence of only 1s and 2s starting with 12 such that the [math]n^{th}[/math] element defines the run length of the [math]n^{th}[/math] run of elements.
The sequence starts as follows: 12211212212211211221211. It's also not hard to calculate either once you're used to it, so don't get put off too fast.
Notice that when we group the runs of elements and create the sequence of their lengths, we recover the original sequence.
[1][22][11][2][1][22][1][22][11][2][11][22][1][2][11]
Taking...
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>>8123145
We can write a proof by considering the rules as a singular transformation which preserves a uniform density. Thus equipartition of the 1s and 2s is unchanged while the number of digits increases. Thusly fluctuating from 12->122 to 22->1122 or 21->112 composes a cycle with closure such that the density on the RHS remains uniform.
Right now I would not mind oz.
>>8123145
Thanks for introducing something to me, but, help me write a novel paper thread sounds a lot like a homework thread.
>>8123165
Maybe I'm misunderstanding you, but consider this.
1212121212...
If we expand this sequence according to the rules above we get this.
122122122122122...
So obviously, for some sequences of 1s and 2s, we fail to keep an even distribution in the expanded sequence.
How would you handle something like that?
I'm an undergraduate researcher and I wanted to investigate some proteins involved in LTP and LTD. Obviously as an undergraduate I don't have access to a mouse lab and I don't really have the neurosurgical skills to be dissecting the dentate gyrus.
That being said, if say I introduced AMPAR into an E. coli through a vector plasmid, if I put the E.coli in a Ca2+ or Glutamate solution, would the E. coli measurably change in concentrations? Writing this now I think this might be retarded, as I'm ignoring the scaffold proteins that orientate the AMPAR...
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>>8123113
Wait... to add to this, maybe switch out an existing glutamate receptor with a mouse neural AMPA receptor?
>>8123113
have you tried looking up the methodology of papers to base this on? Review the literature to find a suitable method.
Have you found a supervisor and spoken about this idea?
I'm not a molecular biologist but your method is complicated and a fair bit of error can be introduced. Needs to be simplified.
>>8123132
The original proposal/presentation for my design is independent, so I can't really get outside help until the proposal (15 minute presentation + paper etc.). Once I propose, I can get a team and we work on the idea and get professor help.
I haven't found anything about anyone inserting neuronal DNA into E. coli, because most researchers just go straight to the source and get slices of the hippocampus or use mutated mice. I can't do either of those unfortunately.
What are we going to do when this is all gone? Is there a way to synthesize more that's less ridiculously expensive and complicated than a fusion reactor?
>>8123104
Maybe we'll have figured out fusion by the time we run out of helium.
>>8123104
It is also a major greenhouse gas. All those party balloons? Great fun until you realise that the helium is floa ting up and combining to provide a heat absorbing layer. Bloody kids.
>>8123222
Helium is not a greenhouse gas. Carry on.
ITT: List the social sciences in decreasing order of hardness. Or alternatively, what are the most/least hard social sciences.
Anthropology, Archaeology, Criminology, Demography, Economics, International relations, Linguistics, Pedagogy, Political science, Psychology, Sociology
Quick links:
https://en.wikipedia.org/wiki/Social_science
https://en.wikipedia.org/wiki/Hard_and_soft_science
>>8122665
International relations (If you actually want a job and not a useless degree) > Economics > Linguistics > all the rest > Psychology > Sociology
Archeology and linguistics are subfields of anthropology...
>>8123247
What are the major divisions of social science?
All I can think of are Economics, Anthropology, and Psychology.
What's the best text book for relearning pre calculus over the summer? The education system in canada is fucked and and has skipped over a lot of shit including geometry that I need to relearn.
>>8122267
https://sites.google.com/site/scienceandmathguide/
stewart. dont do serge lang cuz its an old meme.
>>8122432
>I am not OP
>OP clearly indicates a desire to master precalcluus
>it's the biggest word in his graphic
>someone else promptly recommends a calculus text
>someone else is about to try to wriggle out of their stupidity by No True Scotsmanning' that Stewart is shit, not a real calculus book etc, which would both be factually false in one sense, but...
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Is sociology a science?
>>8122149
No.
>>8122149
Yes
>>8122149
Maybe
Who here does calculus in Banach spaces?
Can someone redpill me on it?
>>8121863
>pill-faggotry
yeah, kill yourself
>>8121895
You sound bluepilled as fuck.,
>>8121863
engineer here
we use them to establish properties of wavelets and to study finite elements techniques, but that's about it I think
So if the real-valued trigonometric functions correspond to the (unit) circle, then what do the complex trigonometric functions correspond to? Those wonky surfaces living in 4D space?
>>8121778
Obviously the unit 4-sphere.
They correspond to the shape that satisfies f''+f=0
>>8121778
The complex "unit circle" is the set of solutions to [math]x^2+y^2=1[/math] for complex [math]x[/math] and [math]y[/math]. This object is a 1-complex-dimensional (2-real-dimensional) manifold which contains both circles and hyperbolas a cross-sections. It is unbounded.
>"the smallest object is the atom"
>atom split into nucleus and electrosphere
>"the smallest object is the nucleus"
>nucleus split into protons and electrons
>"the smallest object is the proton"
>protons split into quarks and leptons
>"the smallest object is the quark"
>quarks split into...
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>>8121685
>nucleus split into protons and electrons
>He wasnt smart enough for neuroscience so he studied psychology
>>8121685
You're supposed to insult physicists at the end of your post to complete the meme.
>>8121693
She*
Hello /sci/.
Has the double-slit experiment ever been tried in a medium that shows the path of the particles?
For example with electrons through that gas that lights up when electrons pass through them. What would happen? Would we see the pattern below or would we see the usual bullshit like when a detector is placed at the slits and just get two bright spots on the target rather than the wave pattern?
just do it a container and blow some smoke in there. but im sure you'll see small light rays splitting up
>>8121679
How is that any different from the original? You realize that the screen is essentially showing the path of the particle right? It's a 2D slice of the path. If you put some idealized gas that shows the path you would just get a 3D version of what the screen shows, the diffraction pattern but spreading out.
>shows the path of the particles
wew
>housemate studies chemistry
>already knew she believed in ghosts, astrology and other quack shit
>find out she believes in homeopathy
>ask her how she can believe it when she understands some of the chemistry of how it wouldn't work
>she can't answer but refuses to believe they don't
How does that even work?
>>8121577
I've met some people who believe in homeopathy but they weren't science majors. Tbqh I've never met any science majors that believed in pseudoscience, although I'm sure that has to do with the kind of people I hang out with.
Hell, even Steve Jobs refused to get actual medical treatment for his cancer because he believed in alternative medicine. It's kind of unfathomable to me how people do that, but w/e.
>>8121586
Yea she's the first person I've met who both studies and excels in a science, while also believing in lots of bullshit. It baffles me, especially when lots of what she believes in goes against basic chemistry (she's big into alternative medicine)
[Note: I'm am atheist]
My family are young-earth creationists.
I also went to a religious boarding school.
My therapist wrote a book about Christian therapy practices.
About 99% of people I know believe stereotyping people is a form of psychological insight.
I had a roommate that used to light catholic vigil candles believing they did all sorts of things.
Vegan roommate that believed in all sorts of vegan hocus pocus.
Had a friend that refused to believe in atoms.
I could go on.
This is an interesting clash of Neuroscience and Philosophy, but I cannot help but ask:
Is Free Will actually a thing?
I'm not saying that all our choices are predetermined by something,
Does Free Will mean to have an unlimited number of choices, if so then currently this is not appliable to real life (see punishment by law etc.)
>inb4 we live in the Matrix
>>8121339
Free will is an outdated meme. It literally cannot be defined coherently without losing all meaning.
>>8121342
Meaning is not even the problem...
Nothing matters and I got no problem with that, but even if so, as a human, knowing that literally no of my actions will have an impact in say... 10k years is already disdaining, but knowing that all my "choices" weren't mine to begin with, now that's what'd put most people into a noose
>>8121349
>there is no free will
>there is no god
>there is objective morality
>life has no meaning
>your consciousness is merely a passively suffering observer of a life over which you have no control
Sometimes the red pill is hard to swallow. Enjoy your existential crisis.
File attached: gorilla.jpg
Which word is best to call a flavored sugar water?
Pop
Soda
Coke
Soft Drink
Carbonated Beverage
Have you ever found that smarter people tend to call it something different than dumb or average people?
>>8120201
Lemonade.
Purple drank
Coke
Lemonade
Dr Pepper
just by brand names or overarching type
