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Archived threads in /sci/ - Science & Math - 1829. page

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>Ceres DAWN has been in LAMO for months
>here have this nice closeup of some random crater
Um, I'd like to see some high detail of the Occator bright spots.
>haha we already told you they're salt (probably) didn't you see that heavily manipulated image we put out in August :^)
Why can't we see a raw image like all the rest of the features.
>because it's salt we told you what are you a tinfoil :^)

Why can't we see some pics of this interesting feature? I just want to see them, what's the big deal?
169 posts and 26 images submitted.
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>>7946134
Tell me, do you honestly believe it is ayy lmaos? Not trying to discredit your post, just curious.
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>>7946137
Denying the strong possibility (pretty much certainty) of alien life is super retarded.
Its like going to the ocean and scooping up a cup of sea water and saying "obviously no whales live in the ocean, heres the proof"
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>>7946146
Not that dude but obviously he's asking if you think proof of aliens is in that image, not if they exist entirely.

You're going "this whale could be in this cup of water"

I'm doing an undergrad research gig at a government lab this summer. Will I be drug tested?
12 posts and 1 images submitted.
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Since it's a temporary thing I doubt they would bother.
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>>7946131

If it's a government lab I would not be surprised at all. You should be ready. Of course, I'd say this is far more likely if it's somehow related to national security than for much else.
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>>7946141
It's CS related, but not security or anything.

Should I also plan for tests throughout the summer or just one when we begin?

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What is the most efficient way to get your brain out of that funk of "I've been doing too much work, I need to relax before I do more work" phase? Because I really just want to keep working, and even though the idea of continuing exhausts me, there's absolutely nothing else I actually WANT TO DO. Just NOT WORK. What's the cure, /sci/?
>inb4 get off 4chan.
This is the first time I've been here all week, and it was just to ask this question.
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is it weird or just the result of the circumstances that the most "successful" people are the ones everybody wants to fuck? is it just the true manifestation of the human nature? is this all we are, monkeys? can we become more than human? if anyone knows please tell me
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>>7946032

Relaxing might do it.
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>>7946044
>Relaxing might do it.
Well, yeah, but what's the most efficient way to relax, that allows me to get in and out as fast as possible and ready and rearing to do more work?

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This place is pretty shitty with the "I'm class of 2020 hur durr" and "Pre-Calculus HW Help Thread". Where are the grad students doing interesting mathematical research? This place is 10000x worse with the underage kiddos here. The intellectual depth is lacking.
12 posts and 2 images submitted.
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check out the epistemology thread its pretty poppin rn
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>>7946015
I did and it's still lacking intellectual depth. I used to envision this place as 4chan's MathOverflow. That vision is long dead.
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>>7946023
You just need to find the right threads.

I've seen many threads that clearly have math grad students in them.

nb

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Why does highschool tell students why math is useful, but not why it can be fun and interesting? It's like the "math is a chore" meme infected the teachers too. Has the education system failed in that regard?
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>>7945970
because all the fun math is too advanced for high school
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>>7945970

Yes

I had a teacher who tried the "math is fun" stuff, but most people would mostly shrug it off and keep chatting in their cell phones whenever she tried to convince us with talk no jutsu.
I really liked her and the other applied students did too because she really worked on her classes and was legitimately concerned about her students.

But normies just don't care about any of it. They just want to fuck, consume and get decent enough grades so they don't get grounded for being lazy pieces of shit.

I tip my fedora hard on this
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>>7945970
Because you can't force people to have fun.

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The Sun and the Earth revolve each other.

The Sun that hypothetically revolves the Earth is, as significant as, the Earth that theoretically revolves the Sun.

Observation shows that the Sun revolves the Earth.

Evidence can be discovered to show that the Earth revolves the Sun.

We observe an evident phenomenon- and phenomena that can be taken as evidence.

>We cannot capture 'the Sun's revolution' around the planet beyond our immediate senses and therefore there is no physical evidence.

>We can only discover the Earth's revolution around the Sun with technology beyond our sensory ability- it's not mentally evident.

The Sun and Earth are a duet of positive and negative rotations and revolutions.
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put the bong down son...
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>>7945329
Repetitive comments are a result of evidence-heavy science- i.e. pseudo-science.

Had you believed the Sun revolves the Earth, you would strive to be original as to keep a decent image, instead you hypothetically hit readers with unoriginal perversity.

Oh well you'll pay one day.
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>>7945333
is that afghan kush or purple haze you're smoking ?

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So I've been playing with ANSYS to solve this problem I had. This is what the problem/case looks like this: https://files.catbox.moe/n13u3f.png

Just pretend it's a pipe. When I simulate some water flowing through (at inlet pressure of 100 Pa, and outlet pressure of 0 Pa) what happens is that the there's some vortex goin on at the end of the constriction. Here's what it looks like, with pathlines representing streamline values:

https://files.catbox.moe/7vef4e.PNG

Here's the same thing, but with contours instead, and with pressure values representing the spaces. Note the vacuum effect at the end of the constriction.

https://files.catbox.moe/hmd6wg.PNG

Supposedly, I can explain the vortex, and a buttload of other things in there with the "stream function" concept. Yeah well, my dumb brain doesn't understand what it even is, really.

Can anyone lend a hand?
14 posts and 2 images submitted.
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>>7945132
http://stackoverflow.com/help/how-to-ask
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>>7945141
I'd rather not receive replies at a rate of one per day.
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>>7945143
Your not going to receive replies at all because you literally did not ask a question.

Read that page, you need it.

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Is there any self-programming programs ?
15 posts and 1 images submitted.
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>>7945127

yes
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>>7945127
Stuxnet.
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>>7945130

unpackaging yourself and programming yourself are two different things.

By your logic any bootloader is a self-programming program.

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What is so "wrong" about Popsci?
61 posts and 11 images submitted.
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>>7945075
>What is so "wrong" about Popsci?
Most of their statements
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nothing. as long as it doesn't get mixed with real science.
thats why we desperately need a board called >>>/pop/. but the mods dont give a cuck
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>>7945100
will that be just for science, or for literature, music, games and fasion as well? because utherwise we need more than one >>>/pop/.

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>Hell might actually be other people -- at least if you're really smart.
>Kanazawa and Li theorize that the hunter-gatherer lifestyles of our ancient ancestors form the foundation for what make us happy now. "Situations and circumstances that would have increased our ancestors’ life satisfaction in the ancestral environment may still increase our life satisfaction today," they write.
>First, they find that people who live in more densely populated areas tend to report less satisfaction with their life overall. "The higher the population density of the immediate environment, the less happy" the survey respondents said they were. Second, they find that the more social interactions with close friends a person has, the greater their self-reported happiness.
>But there was one big exception. For more intelligent people, these correlations were diminished or even reversed.
>"The effect of population density on life satisfaction was therefore more than twice as large for low-IQ individuals than for high-IQ individuals," they found. And "more intelligent individuals were actually less satisfied with life if they socialized with their friends more frequently."
>Let me repeat that last one: When smart people spend more time with their friends, it makes them less happy.
>But why would this relationship get turned on its head for really smart people?
>I posed this question to Carol Graham, a Brookings Institution researcher who studies the economics of happiness. "The findings in here suggest (and it is no surprise) that those with more intelligence and the capacity to use it ... are less likely to spend so much time socializing because they are focused on some other longer term objective," she said.

Can /sci/ explain this? I consider myself smarter than average and I do need at least one day a week to decompress, but I love hanging out with friends and meeting new people.
109 posts and 13 images submitted.
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>>7945044
>I consider myself smarter than average
An opinion held by many brainlets. What actual evidence do you have to distinguish yourself from the masses? Your mummy and an internet IQ test?

I think this thread would fit in /r9k/. You could all cry about how sad you are that no one recognises your obvious intelligence.
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>psychology

religion masquerading as science belongs on >>>/x/
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>>7945044
>Kanazawa and Li theorize that the hunter-gatherer lifestyles of our ancient ancestors
>evolutionary psychology

Into the trash.

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Does the fact that we have numbers that cannot have their exact value represented in our notation (irrationals, I) show an insuffiency in our number system? Obviously, there was no need for these yet when the Arabs first wrote "1,2,3,4",etc. Would it be possible to start over from scratch with all new symbols, concepts, etc to create a notation system where all these are accounted for? Would it make maths more intuitive and advanced math easier?
12 posts and 3 images submitted.
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>>7944952
i hope shes doing porn
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>>7944958
Why would you hope that? Her face is shit.
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>>7944961
we're gonna disagree on that

Have any other architectures besides the Von Neumann architecture ever been researched. And if so how successful have they been?
13 posts and 2 images submitted.
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>>7944887
Harvard architecture

>Under pure von Neumann architecture the CPU can be either reading an instruction or reading/writing data from/to the memory. Both cannot occur at the same time since the instructions and data use the same bus system. In a computer using the Harvard architecture, the CPU can both read an instruction and perform a data memory access at the same time,[1] even without a cache. A Harvard architecture computer can thus be faster for a given circuit complexity because instruction fetches and data access do not contend for a single memory pathway.
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FPGAs with millions of vertical stacks instead of a single bus to the ram are in development. Neuromorphic computing is a thing.

A month or two back an anon asserted that Von Neumann and his friends intentionally withheld most of their ideas from the USA because they knew Americans were just as bad as everyone else. If he's here I'd like to hear more on this.

I suspect Von Neumann's nanomachines were intended as software that would run on a hardware implementation of his binary neural networks. What happened instead was the Americans took their design and scaled them to a ridiculous size, while keeping the single bus.
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>>7944904
so what's the downside? if it were that great then we'd all be using it instead, right?

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>be sick for the second time in 2 months and 6th or so in the past few months
>doc says "lol k" "ain nuthin"
>start getting better after a week
>decide to take antibiotics to finish off the recurring infection
>feeling worse

Why isn't it standard to immediately test for all bacterial strains that cause infection?
This wouldn't happened if I knew the exact strain.
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>>7944753

Dumb frogposter
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>>7944755
what's dump about my post, you stupid bearposter?
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>>7944753
>Why isn't it standard to immediately test for all bacterial strains that cause infection?
There are extremely many reasons. The most pressing ones are that it would literally take years to test, that there is no guarantee that compound x from the bacterial strain that they are checking for is in the particular blood sample they're using, and that there will be a lot of false positives and negatives.

Deciding for yourself that you'll start on antibiotics is detrimental to yourself most of the time, and detrimental to society 100 % of the time.

Depending on the strain of bacteria, some antibiotics will work whereas others won't. It is not unusual that antibiotic x kills benign bacteria that are useful to you while the antibiotic has no effect against whatever's causing the inflammatory response (IR), resulting in the bacteria causing the IR displacing the benign bacteria and thus you've just made it harder for your immune system to tackle this shit.

Also, judging from the extremely limited information you provide in your post, statistically it's more likely that you're infected with one or more viruses than one or more bacterial strains.

Just do the world a favor and finish the antibiotic treatment independently of how you feel. That means you keep taking it even if you stay sick or think you are cured.

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Give it to me straight, do nootropics have any worth? I hear more about them all the time. I've heard of adderall which helps your attention span, but I don't want that one. I've heard of theanine that lessens social anxiety and when I searched for it I found out there were tonnes more, including ones that supposedly increase brainpower.

We all know winners do drugs lads. Ok, an even better justification is that we already eat tonnes of artificial shit in our food so surely nootropics isn't some freak category?

What do you recommend? Though I live in the UK so I can't even get adderall.
12 posts and 2 images submitted.
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>>7944719
modafinil
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>>7944767
modafinil is bad bro. its gor a crash like mdmas, just makes you feel like shit for hours
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>I've heard of theanine that lessens social anxiety

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How does Google pull a search result from an index over a hundred million gigabytes in a fraction of a second? Aren't search algorithms completed in exponential time?
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prediction and optimization
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>>7944620
magic
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>>7944620
>Aren't search algorithms completed in exponential time?
Not if they're done well.

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