Archived threads in /sci/ - Science & Math - 477. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
While we wait for >>7777777
What's /sci/'s opinion about neutrino research?
>>7775673
cold
>>7775673
IDK shit about it.
David Bowie just died.
>>7775684
WHAT THE ACTUAL FUCK NIGGER
is there something i'm missing in my textbook? why the hell is y=1? and not -1?
does Z2 not denote a field of mod 2, in which case you would get (y + 1) mod 2 = 0
?
>>7775561
Isn't Z_{2} the quotient group Z/2Z, so that 1=-1 (mod 2)?
>>7775582
this
add the two equations together as stated in the solution
2x + y + 2z = 1
2x = 0 in Z2
2z = 0 in Z2
Therefore you're left with y=1
How would you tell a tin-hat that pic related isn't possible?
I need to explain this to a *very* simple minded friend.
>>7775531
Gravity.
>>7775531
Because otherwise you could see Japan from the pacific coast
It is possible though...
A causes B
>does that mean if B, then A?
no, there could also be C which causes B
>does that mean if A, then B?
no, the causation is not necessary
>so WTF does it mean?
not much
this thread is stupid
>>7775520
>this thread is stupid
now
>>7775511
Let this one sink in
>A is always B
>B is usually C
>A is never C and cannot be
Where A=OP
B=Faggot
C=above average intelligence
I stopped being pleb and read up on general relativity, time dilation, etc.
Already having some background in math and an intense logical debate with a buddy that took a day, we wrapped our heads around it.
But now I can never look at reality the same again. And everyone will think I'm crazy.
>>7775434
I remember my first acid trip
>>7775434
You, be existing are technically bending space-time to some degree
You have mass, therefore you have gravity.
You are technically affecting every planet and galaxy across the entire universe.
Not only are you made of chemical compositions that are in earth buy have most likely consumed and been made by extraterrestrial matter.
>>7775493
>let me tell you pointless factoids
nice pop-sci, faggot
Is 4-6 hours sleep detrimental? Where can I find reputable studies on low amounts of sleep.
>>7775407
I never get sleep, and I note that with too much as well as too little my mental functioning is lowered.
>>7775407
8-6 hours is what you need. Anything less is bad for the heath and anything over is actually even worse.
>>7775407
It's genetic. It might take some googling, but look into it if you want to be depressed. Some people only need 4 hours to completely clean their brain of waste byproducts, while others need 10+. Tends to run in the family. Life isn't fair and all that.
There was an interview with a woman who would always wake up ridiculous early automatically, so she started running in the mornings. She talked about how she gets to live two lives because she has so much time. I don't have it saved anymore.
And...
Comment too long. Click here to view the full text.
Is String Theory pseudoscience?
>>7775346
No.
>>7775346
Is experimental & theoretical physics a persuedo science?
>>7775346
No.
So I've just read several theories about why straight men are attracted to trannies and such.
https://www.youtube.com/watch?v=qMoEs7eQeZE
I need some sources on this shit. Research papers on the topics, raw statistics, other reliable sources. I can't find anything because searching only leads Blog posts. It's really fucking difficult to find any empirical data on this.
/pol/ and /r9k/ not allowed.
>>7775316
Bump for lulz.
also straight men aren't attracted to trannies. sorry.
>>7775316
>why straight men are attracted to trannies
oh boy, what would freud say about you
thanks for the giggul m8
>>7775316
>I've just read several theories
No.
Lrn2theory
So Powerball Jackpot has reached $1.3 billion. There is 1 in 292,201,338 chance to win the Jackpot. That's 4.45 dollars average pay out per $2 ticket. Why aren't you buying yet?
I just took out a life insurance policy on myself and bought a plane ticket. Guaranteed payout.
I don't care about money. Yes, as a hispanic, I know how important money is, but I just don't care for it.
>>7775268
You get a smaller sum (about half) if you take the lump sum cash, and you'll lose another third to taxes
How can I convince my wife's son that he should study science at university? He doesn't seem motivated challenge himself and just wants to go to his gf's place all the time.
> my wife
jesus christ get off from 4chan you old ass guy. you shouldn't be hanging around image boards and shit if you have a family.
You're probably too late, you have to foster an interest at a young age.
You can try now, but don't expect it to go well. Do something that looks impressive and is easy to do based on your field of study, e.g. if you're a chemist do an iodine clock, if you're a biologist build a 6ft model DNA helix with him. If you're not in any fields you can use, just get a teenager's chemistry set and do those with him.
Or watch Breaking Bad.
You probably shouldn't ask 4chan advice on your son...
What are the most usual laboratory practices and techniques learnt and done in a biology degree? I know it can vary from university to university so Im pretty open in that matter. Can anyone link me a list or something?
Thank you
>>7775115
It'll vary based on your concentration. In microbiology, laboratory classes basically get your feet wet.
>Intro to Micro Lab
Pipetting
Aseptic technique
Media inoculation
Slide preparation
Biochemical identification of microbes
>Micro Lab II
Media preparation
DNA extraction, purification, and quantification
Transformation protocols
Bacterial culture
>Food Microbiology Lab
This...
Comment too long. Click here to view the full text.
Basically you'll be micropipetting different substances.
>>7775115
In terms of broad spectrum?
>pipette skills
>inoculating an agar plate
>centrifuging
>that rumbly thing where it mixes shit better than your incompetent ass could
What kind of sci-related hobbies do you guys have?
I've got some money and time for the first time in a while and I'm thinking of picking one or two up before I head off for college next year (I'm doing my gap year). Is building small-scale UAV/Drones still accessible without paying thousands?
>>7775081
I built a fusor once. But otherwise my sci activities consist of reading books.
If you can get your hands on a 3D printer with a 6x6 or larger print bed you can make a quadcopter/drone for cheap.
That being said, you have to pay anywhere from 140$ to 300$ for a small 250 size quadcopter with GPS and decent hardware...
If you want one of those huge DJI sized ones you'll be paying around 400$. Better than 2k for the real one though.
Also, if you break something you can just reprint it or make new parts yourself, assuming you have a 3D printer to use.
Btw, this is all hands on soldering wires, trial error, and coding. I made...
Comment too long. Click here to view the full text.
bumping for interest
When b > a
((b x 100) / a) - 100 = (b - a) / a) x 100
how? why?
>>7774704
Are you fucking retarded? That's true regardless of b>a.
>>7774704
(b-a)/a=(b/a)-1
>>7774713
how?
What is the difference between astronomy and cosmology?
>>7774663
A lot.
>>7774663
>astronomy
The study of space
>cosmology
The study of a pseudoscience
>>7774663
One is about the zodiac signs and the other is about makeup.
Can any of you show me how to solve this? This isnt my homework or anything but I am practicing for a numerical methods class I have this semester.
I checked chegg, but dont really get their process. Thanks
>plugging numbers in
>he can't even do that
Fuck off and get someone else to do your homework.
>>7774653
define a function that returns 8000 - the right hand side of the volume function and replace b with a/K.
Then all you have to do is use a root finder or optimization routine to solve for a at every K.
Then b then S from the saved a and K values.
>>7774653
>Recent high school graduate who will be first entering college later this month reporting in.
If my understanding is correct then for any value of K you need only replace a with Kb in the volum formula and then calculation until you have something like
8000 = c*b where c is whatever constants result from multiplying 1/4 times pi squared times all that a b shit going on. Then you can get b. and because a = kb then you can also get a.
Then plug in your values of a and...
Comment too long. Click here to view the full text.
