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Archived threads in /sci/ - Science & Math - 872. page

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Is this correct?
12 posts and 1 images submitted.
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Problem in the first line.

The language suggests that time and money is just a necessary condition for finding a woman. You can't just infer equality from that.
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>>8660118
money is the root of all evil, not problems, you faggot.
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>>8660145
The love of money is the root of all evil

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Is this book a joke? People keep recommending it but it's incredibly difficult to understand anything in it. Baby Rudin is infinitely easier to understand.
How am I supposed to read it? I can barely make sense of the introduction.
18 posts and 2 images submitted.
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>>8660086
The book was used for a course in Stanford, the students were very smart and yet the passing rates for that course were abysmal. It's basically common knowledge that it's impossible to use it for independent study as an undergrad.
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>>8660103
So are all these people pretending it's accessible? I see comments on stack overflow of guys going like "Yeah I used it in highschool and it was great!".

While reading it just feels like the purpose of the book is to make one feel like an idiot. Is there a book you'd recommend on discrete math instead of this?
>>
>>8660111
As a matter of fact, yes. MIT OCW has a very good course with videotaped lectures, assignments and everything on discrete math, I'm assuming you're reading it for CS.

https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2010/

As far as people recommending it, beats me. Maybe they are geniuses, maybe they are pretending to be, or maybe they read it, skipped over the proofs, did at best one or two of the warmups and act like they actually worked through the book.

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WHAT THE ACTUAL FUCK IS THIS SHIT?????
>3cm diameter (learn decimal, you caveman retards)
>increased the brightness a little
>too afraid to even touch it
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>>8660085
>>
>>8660085
1. start live stream
2. touch it
3. ?
4. become an hero
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>>8660085
Not enough info - where is it? What is the white substance? Are you indoors or outdoors? If indoors, what kind of building, etc.

Take a wide picture of the surroundings.

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can you solve it, /sci/?
41 posts and 8 images submitted.
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Not enough information
>>
32
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>>8660027
It's really rather trivial, but I'm not going to do your homework for you.

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Draw a perfect line, straight or curved without the aid of a ruler. Writing, Drawing, Life Organized

https://www.indiegogo.com/projects/straight-pen-art-design#/
19 posts and 5 images submitted.
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that's like the most autistic pen i've seen in my life

does it come with a propeller hat?
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>>8659999
>9999
Wee!
>>
Just use your arm, don't they teach this in school?

Its like basic art/math education.
Don't use your wrist when drawing/graphing.

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Is there any other species on earth that's so self-destructive, they consciously denegrate the environment they depend on for survival? All other mammals live in equilibrium with the number of their kind that the local environment can take; humans reproduce without any regard of how destructive their numbers can be.

Are humans the most violent species on earth? As far as I know, no other species wages warfare and genocide against members of its own race. Are humans not the ones who murdered all their cousin species that emerged from Africa with us?
43 posts and 9 images submitted.
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Lots of rodents will reproduce exponentially if there's food about, only to crash and burn when they have too many mouths to feed. That said, the only time this really happens is in human grain stores and stuff, so can't really say it's the same as humans knowingly fucking our ecosystem over.

>As far as I know, no other species wages warfare and genocide against members of its own race.

There's a continuing war over two ant colonies in America. One controls much of California and one controls land the other side of the US border. They're always fighting for territory. Different species but not dissimilar to wars humans fight.

>Are humans not the ones who murdered all their cousin species that emerged from Africa with us?

If I remember correctly we out competed rather than murdered other hominids. I think there's even some thought that we might have lived alongside and reproduced with Neanderthals.
>>
>objectively the most intelligent species
>"Why're humans so fucking stupid?"
>consciously modifies the environment to suit the species, ensure population growth and comfort
>"Is there any other species on earth that's so self-destructive"
>the only species able to contain primitive, natural impulses like rape through sets of rules, morality and law enforcement
>"Are humans the most violent species on earth?"

Misanthropes are retards.
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>>8659969
>All other mammals live in equilibrium with the number of their kind that the local environment can take
lmao how can you be that deluded?
bring foreign species into a new habitat without predators and you'll see how nicely they take care of their environment

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>physics and chemistry are """hard sciences"""

more like fake sciences desu senpai
19 posts and 2 images submitted.
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>>8659863
Here is the link: http://www.nature.com/news/1-500-scientists-lift-the-lid-on-reproducibility-1.19970
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>>8659863
/sci/ literally on suicide watch
https://www.youtube.com/watch?v=42QuXLucH3Q&feature=youtu.be
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> less than 31% think that failure to reproduce published results means that the result is probably wrong, and most say that they still trust the published literature.

top kek science is blind faith

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Our course covers several sections out of our math text per course. We speed through the sections and their definitions/theorems/proofs. There is absolutely no way anyone in course follows every rigorous deduction/proof at this pace.

I have been reading the relevant text ahead for each lecture, but it takes up 4+ hours of my time to read 2-3 sections for us to only speed through it in an 1 hr 30 minutes of lecture. We cover between 4-5 sections per week out of the chapter so this is about 8-9 hours of reading/doing proofs. It feels almost unsustainable as my other courses are neglected.

I am pretty certain I understand the math course better than majority of the people in my class, as I can tell whenever we are doing complicated proofs (ones I've ruminated hours over) in 2 minutes in class people just nod their heads and I know full well they haven't had time to process the tricks and subtleties of the proof.

Should I feel bad if I don't finish the 2-3 sections prior to class? I am covering 90-95% of the reading before each class and then finish the remainder when I have the time.

I don't like to speed read through the proofs. I like total understanding. Most of my classmates told me they don't even read the book lol.
15 posts and 1 images submitted.
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I'm far ahead of the lectures senpai, how else would I have perfect GPA?
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>>8659848
Ditto kek
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>>8659834
Yeah something's wrong. You should be able to cover the relevant sections faster than lecture. Skip small things when possible since they'll be covered in lecture.

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A productivity app developed in Taiwan that prevents you from dillydallying on your phone when you need to study :

You set a time (usually 25min) and plant a tree, it will keep growing as long as you ignore your phone. If you give in and use your phone, your tree dies.
The more you plant trees (aka work) the bigger your forest gets. how lush it is gives you an idea of how much work you've done.
There's a global ladder where you can see others' forests

I use it like a pomodoro timer, set periods of 25 min and take 3-5 min breaks.

Download here : https://www.forestapp.cc/en/
And add me, my Forest name : Nayun
so we can see who's the most studious
21 posts and 6 images submitted.
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>not using phone while working
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>>8659681
Wow, I dont use my phone for anything but checking the time

can people seriously not resist using their phone at work?
>>
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>>8659694
Children are raised with a phone in their hand these days. No need for parenting or physical social interactions at all.

Go ahead, try to take the phone away from them and see what happens.

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>In microbiology class
>learning about bacterial growth
>common nutrients required include carbon, sulfur and nitrogen
>bight idea
>those are also vehicular emissions.
>maybe bacteria could be used to metabolize or otherwise integrate harmful chemicals in emissions

So i googled this and found a patent from 15 years ago. Its all fucking there, down to the genus and species of thermophilic bacteria used. Really it's a brilliant setup, How is this not a thing? Like, seriously?

https://www.google.com/patents/US6218173

there is also this article from 2007 which vaguely describes a completely different mechanism.

http://www.baka.com.au/news/environment/the-bacteria-that-eat-pollution/2007/04/16/1176696757657.html

Why cant I find anything else on this? Was it scrapped? Too expensive or impractical? What do you think?
14 posts and 1 images submitted.
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>>8659554
Microbes are the only reason oil spills ever get cleaned up. People literally can't do shit about oil spills besides spray them with dispersion chemicals to allow microbes to break it down faster.
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>>8659559
yeah but i'm specifically talking about a piece of technology for a vehicle.
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>>8659562
Doesn't seem that practical to maintain a microbial ecosystem inside your car.

Imagine having to fix that shit if you're a mechanic.

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is there anyone here with knowledge on category theory? what are some of its applications?
11 posts and 2 images submitted.
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>>8659517
haskell programming
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>>8659519
applications that contribute to prosperity not autism.
>>
condensed matter apparently
that's when you know it's time to move on

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Hey /sci/.

"A lady steals $100 from a store. Later that day, she returns with those $100 to buy a merchandise worth $70. The cashier then gives her the change: $30.
How much money did the store lost?"
16 posts and 3 images submitted.
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>>8659454
The merchandise is worth $70 and she paid $70 for it so they lost $100. Can't trick me idiot.
>>
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Whatever profit margin the store was making off the merchandise plus $30

You are lost in a jungle, walking along a narrow path. You come to a T-junction, and you are aware that one way leads out of the jungle to safety, the other to a snake infested area and almost certain death. There are two tribesmen at the T junction, and you have been informed that one of these men will always answer a question truthfully, the other will always lie. What question will you ask?
>>
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>>8659454

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So whats the science behind remote viewing? How does it work?
17 posts and 3 images submitted.
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>>8659430
There is no science behind it, it doesn't work.
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>>>/x/
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>>8659430

The mind is a metaphysical device

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So I graduated from college with a BA in Geography about a year ago, and haven't been able to find a real job with my useless degree.
Should I just bite the bullet and go back to school and get a (Associate's?) degree in engineering or some other challenging STEM field?

Do you think that me going back to pursue another degree is a waste of time and money, or would the payoff be worth it in the end
11 posts and 2 images submitted.
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>>8659399
>BA in Geography

Can you tell me where Aleppo is?
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>>8659402
>sweating intensifies
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>>8659402
fuck off goverrnor johnson. go smoke a doobie

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So has there ever been anyone who has read through all of this? The first volume alone is around 700 pages. Is it worth even picking this up?
38 posts and 6 images submitted.
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>>8659267
Kurt Godel read all of it
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>>8659314
Proof?
>>
my head hurts just trying to read it

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