Archived threads in /sci/ - Science & Math - 271. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
How is this even possible?
https://www.youtube.com/watch?v=iQQqBZP8psA
She absorbs maybe 2000~ calories and shits out the rest.
>>7965071
Is bulimia the new "in-thing" these days?
>Model
Oh nevermind, she probably thinks with this demonstration she can "proof" that models arent afraid of calories. But I would guess everybody with half a brain only finds this disturbing.
>>7965071
Makes me sick just thinking about all that sugar, I don't know how fatties do it regularly.
But anyway eating one 8Mcal cake isn't going to do jack shit to you, depending on your diet/exercise patterns it might actually have some benefits. Don't do it every day obviously.
Hey /sci/. I'm wonder how accurate DNA genetic testing services such as 23 and me, and DNA.ancestry are. I'm very curious about my ethnicity. Has anyone tried them? If so, which one do you recommend?
bump for interest
>>7964581
bump
tfw 101% nippon desu
Looking for help with solving these types of problems. It's not homework, I'm not in school. I'm not asking for specific answers I just really want to know how to solve these types of problems. Inb4 Google, tried it, the explanations are NOT showing me how they get to the answer. I'm retarded obviously, please help. Thanks.
>It's not homework, I'm not in school.
Moshi moshi, baito-desu.
Brainlets; when will they learn?
>>7964381
I have a master's degree dude, but not in math. I have no grades to worry about. Didn't ask for answers. Asked for how does one solve these TYPES of problems. Is it really that fucking hard to believe? The fuck.
What Myers Briggs types are associated with what disorders? Like I'd think autism ISTJ, narcissism ESTJ, anxiety INFJ/P
Opinions or literature welcome fampai
>>7958907
This is a terrible break down. You should go away forever.
>>7958915
Helpful thanks
I've heard that INTP (or was it INTJ) is correlated with schizophrenia for whatever reason
Hi, /sci/, want to solve matn unsolved problems... Like 1/0=? 0/0?
0/0=0? Because...
0/0 = (100-100)/(100-100)
=(10+10)(10-10)/10(10-10)
=(10+10)/0 * (10-10)
=20/0 * 0
>Every number or thing multiplied by 0 is 0
=0
>Problem solved
My university friends and teachers said that
>1/0 is a black hole
Can somebody explain me that?!
>>7965283
2*0 = 1*0 (Divide both sides by 0)
2*0/0 = 1*0/0 (Cancel out 0's)
2 = 1
If mathematicians and engineers are so smart, why do they need calculators and computer programs to do all the hard work?
>>7965192
>if farmers are so smart, why do to they use plows instead of their bear hands to do all the hard work?
>>7965192
The stuff that calculators and computers do is the stuff that's so easy that a machine can do it, there's no point wasting time doing that work by hand.
>>7965192
Before calculators they used female math majors to do tedious calculations.
I have a pizza that has been cut into 10 slices.
I'll divide those 10 slices among 5 people. Each person gets 2 slices of pizza.
[eqn]10/5=2[/eqn]
I'll divide those 10 slices among 0 people. Each person gets 0 slices of pizza.
[eqn]10/0=0[/eqn]
>>7965170
gj, here you go
>>7965170
10/0 = 0
<=> 10 = 0*0
sounds about right
>>7965170
>10/0=0
If that were true, then 0*0=10
How far can the humanity go?
I have a feeling as soon as someone builds an Alcubierre drive, it'll rip the planet in two and fuck everything up
Don't trust apes with space-warping tech
>>7965088
Need to pretty much have a world war to tear down all the old infrastructure to build that kind of city in the pic
>>7965102
um, haha. Well actually. That's a city built by an ancient race haha. It's not on a planet but actually a mass relay.
I have started drinking tea to the exclusion of all else. I drink 5 pints (2.5 liters) per day, and have been since Jan 1st.
The picture shows a pint glass, after 10 pints (maybe 15 maximum). I have rinsed the glass out thoroughly before the next 'refill' but not used a cloth, I have however used washing up liquid (no scrubbing).
Clearly, there s an issue with tea drinking. I am seriously concerned about the state of my stomach and intestines. The only way to clean the glass is using chlorine bleach. I want to drink diluted bleach to clean my insides. Thoughts?
The glass on the right is what a clean glass looks like. Control picture.
>>7965039
If you're asking "will bleach clean my intestines" yes you're correct, it will kill the bacteria in your gut mostly, it will also likely kill you if you drink a significant enough amount to cause any major change in your gut microbiome
>>7965039
>The only way to clean the glass is using chlorine bleach.
That's the lazy way lol. All you need to do is get a sponge grit and some elbow grease. Trust me, if it doesn't come off then it's not tea you're drinking.
Your intestines and stomach will shed naturally, they take care of themselves. Who cares they're tea stained. While you're at it, make sure you're quitting carrots, beetroot, coffee, and spinach. Those things will all leave coloured...
Comment too long. Click here to view the full text.
are these things triangles? what is going on?
What's the sum of angles of a triangle that's on space that doesn't have uniform curvature?
>>7964739
help
>>7964739
it depends
This differential equation gives a better approximation of a falling object due to gravity, can anyone please solve this? Either wolfram alpha is being a bitch or maybe this is impossible...
>>7964489
tungstenalpha.com
>>7964491
it's an actual site..
>>7964489
Have you tried with a change of variables?
I'm going to be the TA of a linear algebra course this semester but i have problems for finding good problems to show, i've been looking on mathexchange but they are too "of the book" and i ran out of ideas for problems made by me, does anyone have good source material for this?
>>7963840
first year undergrad in Electrical Engineering here
Linear Algebra is gay, and I have proved it mathematically
That's all I have to say about that.
Although, my course used "Introduction to Linear Algebra" by Johnson, Riess, and Arnold.
It sucks too.
Give them a 5x5 fully occupied matrix and let them calculate all Eigenvalues. This will them a while.
>>7963840
do you want for all or just end game
Gentlemen, I have a question.
Does medicine count as a science, and if it is how pure do you believe it to be?
If you are in the field, what is the awesomest thing you guys have learned about/seen?
>>7963094
>stethoscope
>clothed patient
>Child
>not crying like a bitch
>doctor
>without 1000 yard stare and hollow eyes.
way to glorify a shitty job.
>>7963094
Science implies that you do, well science.
Doctors don't do science, they just look up what their patient has on google or whatever and prescribe medicine.
They're not looking for a truth using the scientific method, they have something better to do.
>>7963116
why not?
have you ever heard of medical researches, labor tests, medical university?
+medicine is part of the nature
Shamanism, healing, etc is not science.
/math/ pls help
>>7956599
Have you even tried anything? This is mostly plug and chug
>>7956599
That's trivial. You don't see it? I feel bad you should reconsider your major.
>>7956850
>Have you even tried anything?
No. It looks really tedious, I don't want to do it.
Is there a nuclear chain reaction always happening in the Earth's core? Or is it just hot because of all the friction and pressure from gravity?
Why was the planet so much more volcanic in the past / why is it cooling off with time? Will it eventually reach a state of having no more volcanism or plate tectonics?
Could the core ever become "cold?"
>>7965211
>Is there a nuclear chain reaction always happening in the Earth's core?
No
>Or is it just hot because of all the friction and pressure from gravity?
Yes
>Why was the planet so much more volcanic in the past / why is it cooling off with time?
Energy goes from hot to cold, high to low energy states.
>Will it eventually reach a state of having no more volcanism or plate...
Comment too long. Click here to view the full text.
It's hot for two reasons:
1) It started out hot and hasn't cooled down yet.
2) There is a lot of radioactive material in the core.
Both slowly decrease with time.
About half of the heat coming from the earth's core is the product of the fission of heavy elements as they split into lighter ones. The rest of it comes from friction and pressure.
Not sure how much this ratio has changed since the earth was formed
