Archived threads in /sci/ - Science & Math - 20. page
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7
What's up with this number?
7 is a Prime Number.
7 is a Mersenne Number.
7 is an Octahedral Number.
7 is a Lucas Number.
7 is a Centered Hexagonal Number.
7 is a Heptagonal Number.
7 is a Hexagonal Pyramidal Number.
5 can be Partitioned in 7 ways.
7 can be Partitioned in 15 ways.
7 is the number of + signs needed to write the Partitions of 4
Sum of the first 4 Fibonacci numbers= 1 + 1 + 2 + 3 = 7
7 is the number of frieze groups, i.e., the groups consisting of symmetries of the plane whose group of translations is isomorphic...
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>>8192885
2
What's up with this number?
2 is a prime number.
2 is the only even prime.
2 is the first even number.
2 is a Mersenne number.
2 is a Lucas number.
2 is a Ramanujan prime.
2 is an Einstein prime.
2 is Markov number.
2 can be partitioned in 2 ways.
2 is the first integer that is not a Gaussian prime.
There are 2 groups of order 4.
2 is the size of the smallest non-trivial group.
The 2-sided polygon in the Euclidean plane is the first whose construction is degenerate.
2...
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>>8192965
I'd post a similar post for 3, but 3 is bland af.
>>8192885
>The 7 directions: north, south, east, west, up, down and the center.
Hello /Sci/ i would like to have a conversation about anatomy and physiology
Ok
Did you know that your immune system kills cancerous cell literally everyday?
>>8192660
That's far to profane for a blue board.
I'm trying to learn more basic physical chem and I've never been satisfied with the explanations given for pic-related representations of electron orbitals.
What does the 3-D surface represent? Is that some particular spatial probability density for finding an electron there, and if so what is that density? And what is meant by the opposite lobe of a p-orbital having this "negative" potential; how can it have negative probability density?
Also, e.g. for s-orbitals the density seems to peak at the nucleon location -- is it actually possible to...
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Just do the quantum. There is no intuitive explanation outside the math, which itself is blindingly obvious once you've worked through it.
>>8192493 (OP)
>that is some particular spatial probability for finding an electron there
fixed
Also, on the title, most of quantum, and in-turn, subatomic interactions are non-intuitive which is a difficult concept to grasp.
>>8192493
>is it actually possible to find an electron right in the middle of the nucleus?
Not a physicist, but I'm almost positive the answer is absolutely no.
hard sci fi -(that's sci fi with real science in it)-
there is a disturbing lack of hard sci fi in pop culture (nothing new) but also in real science as of late
scientist used to dream about what can be or what may be or what will be all the time but it seems like if your doing sci fi then you throw out hard science for some vaguely sciency bullshit that is little more then a plot device and /or magic in a different form
-and if your doing science then there seems to be no willingness to try and dream big or imagine something that is vaguely possible and run...
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>>8192097
![FS9[1].jpg](https://i.imgur.com/C1n8T9d.jpg "FS9[1].jpg")
>>8192110
>>8192121
should we rename chemical engineering? There's very little chemistry involved at all. it should be called process engineering
pic not related
sure
so what now? why did making this thread not actually change the name?
>>8191908
>There's very little chemistry involved at all
>>8191976
There's only one class of Chem. You spend more time on physics and math
Is consciousness the same as self-awareness in your opinion anons? Are we capable of creating a truly conscious machine?
I've recently heard about this robot who positively passed the test for being self-aware. I don't see the point of getting into the details, but essentially the robot was capable of distinguishing himself from a group of other robots and recognize his voice as his own. And from what I understand the consensus among many scientists in the field of A.I. and robotics is that by somehow bettering and scaling up this capability at some point we'd create a machine with human-level consciousness. But I honestly don't understand how the fuck is that supposed to work. Sure, at some point we can have a machine with an advanced abstract of itself and it's environment within it's digital brain, capable of perfectly recognizing it's own actions and having the concept of "I" programmed in it. But would at any point this machine become able to "experience" anything at all? To be conscious the way humans are? Experience it's own thoughts, be happy or scared, see colors and hear sounds? To me the concept seems idiotic; how by perfecting one thing could you create another? I have a feeling that a lot of scientists like to ignore the fact that that human consciousness even exists, they say things like "it's just an illusion" (like that somehow solves the problem) or try to reduce it to somehow reduce it to something that it isn't to avoid the uncomfortable fact that they don't understand it.
Imo consciousness is much more than self awareness. There's are so many things that we humans do just cause we can.. there's no explain for certain actions... for instance, if I'm sitting on a chair, I would get up randomly and go outside my room, possibly get distracted etc. Why did I get up? What made my brain force my muscles to push my chair back spontaneously and get up? Idk... There are so many involuntary actions (not reflex actions) that humans do for which there's no explanation. Every person does something of this sort if not the same. Consciousness...
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>>8191610
>There's no explain for certain actions...
>for instance, if I'm sitting on a chair, I would get up randomly and go outside my room, possibly get distracted etc.
>Why did I get up?
kek.
Why do the AM and FM bands start with seemingly random frequencies like 85 MHZ? Why can't I tune into 1 HZ or something?
because it's reserved for shortwave communication
>>8191507
The entire electromagnetic spectrum may just be waves of different length explained by the same physics, but how waves interact with matter critically depends on material properties. For instance, glass may be transparent to visible light, but you'd have trouble getting a tan because glass is largely opaque in the UV. Same principle appliesto the atmosphere; some waves get through, and some don't. Furthermore spectrum is a finite resource. Without careful regulation, radio would be largely useless because...
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>>8191507
I've heard interesting arguments for both. Theres the usual 'most animals aren't monogamous and don't feel guilt for fucking everything but on the other side I remember reading about the evolutionary advantages to couples that weren't polygamous. What do you guys think. I for one feel like we're always gonna want to fuck others. I have no issues with committing to one person but should we scold people those who can't? After all they're just after the chemical rush.
>>8190081
polygamy =/= being a manwhore
You still need to take responsibility.
>>8190083
Polygamy =/= being a whore
You can take several dicks but you still have responsibilities.
>>8190081
Well, I for one would love to have multiple women.
Physics replaced natural philosophy.
The scientific method solved epistemology.
Math took over logic.
Which field of philosophy are we gonna make obsolete next?
evolution already replaced ontology so like whatever man
scientism is toxic
what's next anon. at some point there would be nothing left in this world for me to be interested on. should I just kill myself?
>>8189985
Since when did the scientific method solve epistemology? That's asinine
I send this to my professor 3 days ago, he hasn't replied. d-does this mean I am wrong and made a total f-fool of myself?
I don't think I'm wrong but people who are wrong usually don't
here's my proof
>>8191659
If there isnt information you didnt present here, I think you dun goofed.
The underlined sentence is given you as crucial information in order to solve the tasks. For all intenses and purposes it is absolutely arbitary and I dont even know how you concluded it should say something else
>>8191689
that's all there is..
but do you see my working?
20% are overbooked, 25% are late, so this means that 5%chance that a flight is overbooked and late since 0.2x0.25=0.05 and 15% of flights are overbooked and depart on time since 0.20x0.75=0.15
what I'm trying to say, it's impossible to be 60% if the two values 20%,25% are given
https://www.youtube.com/watch?v=mkDzmI7YOx0
it's statistics 101
https://en.wikipedia.org/wiki/Chiles-Whitted_UFO_encounter
>Two pilots report seeing a cigar-shaped UFO about 100 feet long with "rectangles" on it and flames spewing out the back
>They are told by the military that they saw a meteor
>This same military had just captured plans for a 91 foot long cigar shaped rocket-powered space plane with rectangular segments
Maybe it wasn't aliens this time (why are they using rockets to cross the galaxy?) but since getting...
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50 years ahead of what? Pretty sure we already have all the equations that govern flight, what's so special about these UFOs? Maybe dumb people should stop trying so hard to try and feel special because they were ass raped by ayy lmaos.
>>8189665
>nothing new will ever be invented
>we already know everything
>>8189710
He was saying that a rocket-powered aircraft doesn't use any technology that wasn't available in 1948.
ITT we come up with plausible explanations for how consious beings experience death without resorting to religion or mysticism, for example:
By definition a consious being cannot experience nothingness or death. If you are in a coma you do not remember the coma. It is no different than remembering the time before you are born. Therfore, it isn't unreasonable to permit that even after millions or billions of years after your death at some other time and place in the universe you experience Consiousness again, albeit with no recollection with the time beforehand.
>>8184359
>>>/reddit/
>>8184362
Sorry if these types of topics frighten you anon. Thanks for the (You) anyways.
>>8184359
>after millions or billions of years after your death at some other time and place in the universe you experience Consiousness again, albeit with no recollection with the time beforehand.
I remember a thread some anon made a long time ago where he asked if it was possible for particles to rearrange into an exact replica of himself with his consciousness at some other time and place in the universe.
This could be possible I guess.
But if the universe is infinite though,...
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Any medpacks here, what happens when one of them dies?
It's one organism , not 2 humans stapled together
>>8180663
This, they share certain organs IIRC, therefore barring some freakish experimental surgery the other would die
>>8180663
What if one gets a clot in the brain and dies thouh?
Not OP
I'm finishing my master's in Computer Science, specializing in AI and algorithms. Even though I'm doing the career I wanted since little and I'm loving it, for some reason, I think this shit is useless and want to do some more useful, in my opinion, like chemistry or physics, since I like both of them, but I don't want to do another careers since I don't have money for that.
What you would do?
>>8192363
What would Jesus do?
>>8192368
Probably get himself crucified
>>8192394
Then you should do that.
Is "survival of the fittest" a misnomer?
Wouldn't "death of the unfittest" be more accurate?
>>8192677
pic definitely related
each statement implies the other no?
>>8192688
Maybe I'm just dumb, but "the fittest" seems to imply the most fit, i.e. those that are the pinnacle of being "fit," while "the unfittest" implies those that are the least fit.
Survival of the most fit implies that those that are of middling "fit" die as well as those that are least "fit," while death of the unfittest implies that only the "least fit" die while middling "fit" groups manage to survive along with the most "fit" groups.
