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Archived threads in /sci/ - Science & Math - 1648. page

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IT'S OVER

HTML IS MASTER RACE, C FAGS LITERALLY ON
SUICIDE
WATCH
A
T
C
H

https://www.youtube.com/watch?v=-csXdj4WVwA
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>>8103938
>>>/g/
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>>8103942
oops.
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>>8103938
This just in: popcorn beats existentialism.

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My passion I pursue in the academic world involves a lot of math. Unfortunately, a lot of the time it just doesn't click with me. Has anyone ever overcame this struggle?

Everyone on /sci/ seems to be good at math and say so in ways where it seems like it just came inherently.

I will admit I have been one of those people who have came on here and asked for homework help. I'm ashamed about this as I read the textbook and all that good stuff. Oddly enough, the person who is actually willing to help presents in a way that doesn't follow my textbook's way and the answer is a lot easier when the person suggests their way of approaching the problem.

What is going on in this situation? I understand math can be like a puzzle that can be figured out in numerous ways with the same result. Why do textbooks suggest one way of answering the problem, often in the most time-consuming way? Am I simply missing something? Are there any suggestions for looking at math in a different light than just plugging in what your textbook tells you to? I actually want to appreciate math...
30 posts and 2 images submitted.
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Not to be a downer, but in my experience, math proficiency is dependant upon an intuition that you either have or do not. Maybe you can get better. I don't know.
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>>8103920
Everyone who has ever been good at math has dedicated a large portion of their time to studying/practicing/working with math.

No one inherently just understands everything.

The only way you're going to understand math is to just practice, again and again. Only then will you appreciate math.
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>>8103920
Every single person on this board with a lick of mathematical knowledge worked hard to obtain and understand that knowledge. Math is hard. But the more you read, think about, and practice math, the easier it will become.

I have a Engineering Physics background among others. In my experience I often didn't understand the more advanced topics we were talking about at the time of learning them (think picking up Quantum and PDEs at the same time). After a few years of feeling that I was flying by the seat of my pants, I realized I suddenly understood what at first was baffling. Good ideas take time to ferment in your head.

Famous story:
"There is no royal road to geometry" (μή εἶναι βασιλιkήν ἀτραπόν ἐπί γεωμετρίαν)
Reply given when the ruler Ptolemy I Soter asked Euclid if there was a shorter road to learning geometry than through Euclid's Elements.

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Quick Question:

I need to generate a sine waveform between 1 Hz and 3 kHz for a shaker. Which function generator do you think would be the best for the job?
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>for a shaker

sine waveforms makes lousy protein shakes my dude

and i should know im an engineer
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(I'm looking at the BK model 3003, but this is my first sine wave generator purchase and I want to get it right)
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>>8103851
its to jerk me off

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http://biorxiv.org/content/early/2016/05/26/055699

It looks like there might actually be some kind of link between cell phone RF emissions and rare gliomas.

Any thoughts on a mechanism? Personally, I'm betting on some kind of blood-brain-barrier disruption that makes it slightly more permeable to carcinogenic compounds, which would explain the low incidence of the tumors in humans.
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>>8103745
Idk but I'm guessing since it's non-ionizing radiation DNA damage is out of the question
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and so the misinformation and lies begin
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>>8103745
or how about not a large enough sample size

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Anyone on /sci fool around with arduino? Make anything worthwhile? Is it worth getting into?
15 posts and 1 images submitted.
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>>8103647
That's a /g/ thing. They even have a arduino general, sometimes.
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>>8103651
Thanks, didn't know that
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>>8103647
yes, yes, yes
>>>/diy/ is more arduino stuff

>The warping of spacetime is the cause of gravity

This is the stupidest thing I have ever read.
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did you read the bible
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>>8103615
Is that that book that they stole the Big Bang Theory from?
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What cause time to stop in refrigerator from the relativistic point of view?

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What would happen if I took an entire bottle of melatonin pills?
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>>8103442
Nothing. It's not a drug, it's a diet supplement, you would piss it out in an hour or two.
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>>8103447
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>>8103442
don't do it senpai

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Which private company or research institute has the most advanced AI to this day?
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AI isnt real
its a scam by the Illuminati funded by bush
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Bumping this thread, want to know.
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>>8103408
My guesses:
Google Deepmind
Acxiom
Tesla

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Is it true that

>top student spends 2 hours studying, learns almost all content
>you spend 6 hours studying, retain like 10%
50 posts and 2 images submitted.
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>>8103333
No. Just fucking take notes and read your textbook dammit
>>
yes

they're just more efficient and accomplish things in bursts rather than continuously.
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>>8103333
Yes and no, depends on the person. I know a few bio majors who are like what you described. However a friend of mine has been top of the class and he studies like a champ. 5-7 hour sessions of reviewing notes, re-watching lectures, and re-reading textbook chapters over and over.

If you aren't naturally gifted then you get out what you put in. If you do shit all study expect shit grades.

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Congratiulations, 'murrica!

Recently a so called "superbug" was found. This is a bacteria resistant to the antimicrobial drugs typically used to kill them, each year about 700,000 die from superbugs.

Why are superbugs a thing? Because there are more and more antibiotic agents each year. Say thanks to factory farming, say thanks to industrial farming where it's all about profit.

Basically with every new stuff we spray on them we exponentially speed up their evolution.


And now we face the challenges of a future where a simple pneumonia will be deadly again.
And what do "scientists" (of course without any private economic interests at all !) propose? Yeah, let's make even more antibiotic agents!!

10/10 'murrica, you can't make this shit up..

>http://edition.cnn.com/2016/05/26/health/first-superbug-cre-case-in-us/
21 posts and 4 images submitted.
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The solution is really, really simple:

Mix multiple antibiotics together so that bacteria can't simultaneously evolve resistance to all of them. Crisis averted.

Also it doesn't make sense to stop prescribing antibiotics because you're afraid that the antibiotics you're not allowed to use might lose effectiveness.
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Go to any local doctors office or hospital. There will be at least one infographic directed at patients or doctors urging the sparing use of broad-spectrum antibiotics. The Healthcare community recognizes the risk and is working to slow it with targeted antibiotics, for instance.
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>>8103263

>Mix multiple antibiotics together so that bacteria can't simultaneously evolve resistance to all of them. Crisis averted.

Hahaha, no.
That's exactly what they do.
That's exactly why the crisis is coming.


Also nobody said we shouldn't use antibiotics at all. It's about the many places where antibiotics could easily be avoided.
Multiresistant bacteria are not caused by antibiotics, but by the excessive use of them.

Example: If you give pigs enough room to live you don't get that stupid problem in the first place. But if you cage them in a tiny room full of shit you create a bacteria paradise.

Instead of doing the right thing we do the wrong thing and try to fight teh consequences. It's so stupid..

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Hey /sci/ is the universe logical?
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It's as logical as /sci/, op.
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>>8103222
Nice trips
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no it is probalistic

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Do you think that psychopathy is linked with nature or nurture?

I do not believe that something so prevalent and well documented over hundreds of years could result from a (nearly even) combination of the two since differences between cultures, standards within individual cultures, quality of life, and parenting styles are always different and constantly changing.
14 posts and 1 images submitted.
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>>8103078
You can have a genetic predisposition to psychopathy, but experiences during development can trigger a break with reality. There are cultural differences, of course. Look up rates of schizophrenia in first and third world countries. Yes its both.
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I think it's definitely a combination of things, but nature is definitely a factor. I think our greater capacity for imagination and knowledge over the other animals which is also our curse. The more connections and complex a brain, the more ways it can go wrong. Just the slightest misalignment can lead to all kinds changes.
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>>8103078
psychopathy is a myth.
Psychology is not a science.

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I'm trying to calculate something but I don't know exactly how to set up the equation because I don't normally work in this field and I'm pretty new to STEM in general, only just half way through with my BA in chem.

Anyways, I'm trying to figure out what the effect of trump's wall getting too tall would be on the center of gravity of planet earth.

Let's take F to be the approximate height of the wall as originally intended.
However, the real height of the wall will not be expressed simply as a function of F because every time Mexico does something belligerent the wall gets 10 feet higher.

So the final height of the wall can be expressed as something like

F + 10(x)ft where x is a function of Mexican belligerence about paying for the wall.

I know I need to use this somehow in order to calculate both the surface area of the wall and the weight of the wall, but I'm not sure what I would have to do after that in order to calculate the ultimate impact of this on the speed of the rotation of the planet on its axis or on the center of gravity of the planet earth. Would it also effect the tides if it got high enough to effect these things? What kinds of materials would the engineers need to use to build the wall this high? How would that effect the final weight of the wall?
Nevermind the logistical issues assume it's technologically feasible this is just a hypothetical I'm trying to work out. How many times would the wall have to get 10 feet higher in order for there to be consequences that would be measurable on an astrophysical scale and what would those consequences be I guess is my question, but I want to be able to see the demonstrations, not just armchair guessing games. Thanks in advance, I'll be monitoring and helping when I can with the notes I've been making.
11 posts and 1 images submitted.
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Make wall inflatable, fill it with helium, it can now go up to space changing earth's CoM by fuck all.
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Negligible.
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>>8103026

But what if somebody popped it? wouldn't the entire wall come down?

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To all the dumb physicists in here trying to give ontological character to their mathematical discourse (which is only descriptive of relational properties):

"But hitherto I have not been able to discover the cause of those properties of gravity from phænomena, and I frame no hypotheses. For whatever is not deduc’d from the phænomena, is to be called an hypothesis; and hypotheses, whether metaphysical or physical, whether of occult qualities or mechanical, have no place in experimental philosophy." -Isaac Newton
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>>8103019
Do i need to draw?
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>>8103040

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/sci/ is there ANY food, drugs or drinks that can help increase your intelligence? I'm doing those brain puzzle games but I think I hit a plateau.
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>>8102829
fuck off
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>>8102830
Nice try memer.
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Caffeine and amphetamines can give you a small boost, but there is not magic compound to make you smarter. Use sparingly of course.

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