Archived threads in /sci/ - Science & Math - 573. page
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Can Michael Spivak's 'Calculus' book be used by someone who is terrible at Maths as an entry point into Calculus?
>>7703747
>someone who is terrible at Maths
if you keep telling yourself this, no book will help you.
You aren't bad at math, you just havent practiced enough. Maybe try a lighter calculus text, something stupid like stewart, just to get used to doing the operations and the train of thought you need to have. after that, hop right into spivak
you can do anything if you put your mind to it
>>7703764
Trust me dude, I've been trying for three years to get a hang of Maths. I love the subject but I'm close to just accepting it.
Yo, going to college in like a month. We can have pets, but only aquarium pets.
What are some good and cool looking fish/shell fish, I can put in an aquarium? Scientifically tho.
Don't do it OP. You'll get drunk in the first week and pour vodka into the tank as a joke or drunkenly stumble into it and smash the glass. I've seen both happen.
>>7703690
For some reason I read that as "we only have adamantium pets". And I was like, "Why."
He's right you know
This is what mental illness looks like by then way. Surprised everyone just made fun of him instead of getting him help for his delusions
>>7703682
holy crap it's legit. http://www.independent.co.uk/news/people/terrence-howard-thinks-1x1-2-has-a-secret-system-called-terryology-and-spends-17-hours-a-day-making-10502365.html
>>7703685
He really just doesn't understand the words he is using and how they relate.
Is there an official age at which you are old?
>>7703605
Not really. You're always old, and you're always young. Until you get into your 90's and early 100's. Then you know very few people exist to consider you young.
>>7703605
Yes, it's the age when you stop understanding the new dank memes kids are using.
15 is pretty old imo
>>7703614
this too
Can anyone tell me why is my homemade electrolysis happening so slowly? I've poured a metric fuckton of sugar and stirred vigorously, connected batteries ranging from 1.5 to 9 volts, got some good wires, and after an hour all I got is a 4mm bubble of gas and a very hot battery.
>>7703594
>*salt
bump for interest
as an anecdote, i once this this but instead of a battery i used cables straight from the outlet, shitload of salt and it got green in no time
this was 20 or more yrs ago though
anyone?
I'm still trying to wrap my mind on what a confidence interval supposed to be.
Say for example the mean height for all males on my campus is 6' with a standard deviation of 1" the 95% confidence interval would be (5'10", 6'2")
Does that mean "we actually don't know what the mean value is, but we are 95% sure is it in this interval" ?
95% confidence is 2 standard deviations for a normal distribution.
We are 95% confident that the population mean ยต lies between 5'10" and 6'2".
You are estimating population parameters with sample statistics. The part about not knowing the true value of population parameters is implicit.
>>7703576
>Does that mean "we actually don't know what the mean value is, but we are 95% sure is it in this interval" ?
Yes. When you expand the confidence interval to 98%, 99% or even 99.9%, this results in your interval being wider because you're more sure that the mean falls within that range.
>>7703599
This.
>Does that mean "we actually don't know what the mean value is, but we are 95% sure is it in this interval" ?
No. Confidence intervals as people usually describe them are frequentist constructs, and belief or surety does not enter the picture. You can construct confidence intervals for Bayesian estimates but usually if you're talking about a Bayesian CI then you're specific that it's a Bayesian metric.
In this case, a 95% confidence interval describes a relationship between the sampling distribution and the...
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Hi friendos, time for /ogen/
>Recommend me a textbook
Wade, Clayden, Solomon, whatever. It doesn't actually matter too much, you just need to keep doing practice problems (I really like the problems in Bruice). Please don't shit up the thread asking for textbook recommendations.
>Guys I'm a future doctor taking organic next year. Tell me how to get a good grade!
Just make sure you memorize everything. Don't bother trying to understand the concepts, that's a waste of time....
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I work in a synthesis lab and I'm a straight up baller
>>7703564
>Don't bother trying to understand the concepts
I second this. If you were meant to understand orgo, you would've crawled out your mother's snatch expounding on the relative merits of lithium, boron, titanium, tin and zirconium enolates in carbon nucleophile reactions instead of whining like a little bitch.
>>7703564
>Just make sure you memorize everything
This is a guaranteed A
>Don't bother trying to understand the concepts, that's a waste of time
What's exactly wrong with this? I feel like the concepts are fairly straightforward in orgo, like they just build off of simple concepts from general chemistry. Well, except for MO theory.
Which one of you tards doesn't believe in the Expanding Earth Theory?
expanding earth is inconsistent with sea level rise
Guys, I'm really worried about my son's education. Friday he came back from school and told me his teacher introduced "imaginary numbers". What the fuck is this bullshit? Back in my time we learned real math and not this new progressive politically motivated pseudo math.
>>7703450
Nice b8.
>i-i = 1
>>7703450
Even though this is b8 I wanna know
>i-i=1
how do they arrive at this? or is this part of the ruse?
What causes heroin to produce the euphoria it does for users, /sci/?
Probably the large amount of heroin stimulating your every dopamine receptors
ฮผ-opioid receptors
https://en.wikipedia.org/wiki/Heroin#Pharmacology
Health care / medical field discussion thread
>your job, estimated salary, your age, (or people you know
>your satisfaction with the job, or if you could change to what job?
Or
>your experience as a pre-med student (or anything similar)
>personal experiences or stories pf anything related
>any tips, advice, recommendations for people interested in your job/major
>what are the best salaries...
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And I didn't mean just "salaries". But jobtitle/work description as well.
>>7703226
> medical student, no clue, 22, super excited
>>7703243
Do you mean ending college as a med student or starting medical school?
Is he overrated, /sci/?
>>7703177
Yes
/thread
Maybe, but he's a cool guy
>>7703177
He's a sexual predator.
/sci/ is the only board that has any taste. I need some smaller supplementary gifts for my girlfriend's christmas. She's an English teacher and desu she spends all of her time at home in her reading chair by the fireplace in the winter, and on her porch in the summer. She hardly uses most of her house, or any of the space I could get her something to fill. It just seems trivial to get her anything and it makes things very difficult for me. I'm building her a book shelf because she needs one since moving earlier this year, and I've gotten her a couple of books...
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>>7702956
dildo. make it black. engrave my name 'nathan' on it.
>>7702956
I can't believe this faggot has such a deep dialogue with himself hoping for inspiration from basement dwellers that don't know what a gf means.
>>7702956
Mine is also a reader, so grabbed a Kindle Paperwhite during black friday.
Saves my gf''s back and she can pick whatever she wants to read on a whim when out.
Grabbed some cute stuff from Smoko too, in particular:
http://www.smokonow.com/products/yewfoob
http://www.smokonow.com/collections/2015-holiday-gift-guide/products/yetiuh
You considered puzzles anon?
I love NASA with a passion but I feel that their focus is too spread out on stuff that isn't that important
I think they should stick to three main priories:
1. Getting Humans to Mars - achieving this would be one of the greatest accomplishments of Mankind
2. Study Europa - we need a probe that can get beneath the ice and search the ocean, I bet you anything there are fish, tube worms and algae down there. Discovering life beyond earth would be the greatest discovery of all time.
3. Exo Planets - NASA should be looking for relatively close planets...
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NASA isn't going to do any of that. Blue Origin and Space X and other growing companies will, but slowly.
The budget for NASA is too low to do any of it. They can't even keep the ISS running properly how do you expect them to get to Mars.
Getting humans to Mars isn't a scientific concern, it is a technological
NASA is first and foremost a scientific research establishment so they will prioritise study of the deep cosmos over the technical mundanities of setting up a human base on Mars.
This should be reassuring though because it shows that Mars is already within our capabilities, we just have to make it happen through the public sector/capitalism.
>>7702921
>1. Getting Humans to Mars - achieving this would be one of the greatest accomplishments of Mankind
NASA doesn't nearly have the budget for that.
>2. Study Europa - we need a probe that can get beneath the ice and search the ocean,
Pretty sure that;s on the todo list. But it would need both lots of money and the right orbital alignment.
>3. Exo Planets - NASA should be looking for relatively close planets that...
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Fuck your damn science. I can prove that my dog isn't colourblind.
Their no as much as color blind as they are color impaired. They can see colors but not the same verity as we can as humans. Still science though.
>>7702902
>Their no as much as color blind
>Their no as much
I've got evidence that a select group of dogs have the ability to compare colors equally or better than humans. I may need to do more research and put out a thesis.
>>7702895
damn qualia, they're at it again
