Archived threads in /sci/ - Science & Math - 194. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
Hi sci!
I'm a musician and i need a little help.
I need some functions of a real variable in R like tan^-1.
I need C0 class functions, I don't need an odd one, but it should have:
f(0) = 0
f(x) < 0 ∀ x
lim x-> +inf f(x) = 1
A nice feature could be:
f'(0) = 1
Thanks you so much!
>>8025000
>f(0) = 0
>f(x) < 0 ∀ x
Uh.
>>8025000
>f(x) < 0 ∀ x
That's not how you use quantifiers (I know what you're trying to say, but that's not proper syntax).
>>8025000
>f(x) < 0 ∀ x
>lim x-> +inf f(x) = 1
What.
Also,
>f(0) = 0
>f(x) < 0 ∀ x
>f'(0) = 1
And >>>/sqt/
I know that it's a little off-topic, but is this image actually the result of a study that some anon did, or is it just /lit/ jerking themselves off?
I am almost certain that it is bullshit, but I figured that if it was real, /sci/ would know that it happened.
>>8024995
Anon please. You're embarrassing you'reself.
>>8025001
wise anon!
/wg/ is the 3th? Hahaha!
>>8025001
I'm mostly doing this to start a thread on the validity of IQ covertly by way of obvious bait.
Why? I'm bored.
how harmful is fecal matter? I'm an ocd person and my toilet is under repair so my only choice is the office toilet. Can someone explain if my fear is irrational with stats? and how I can avoid harm?
shit in yo pans
>>8024606
Bacteria stick to the oils that are naturally secreted by your skin. Soap breaks down the lipid molecules and washes them away with the water. This is why your hands are dry as fuck after washing with soap.
Seriously just wash your fucking hands with hot soapy water and you will be fine.
>>8024606
shit is like 2/3 gut bacteria, mate
but unless you go out of the bathroom without washing your hands thoroughly, you're save
can I be an academic scholar and part of the academic institution but without having to teach?
>>8024311
yes, research professors, post docs, there are tons of people like that
... you are in grad school and you arent aware of this?
>>8024352
just going to enter college anon.
>>8024353
ohhh
the answer is yeah, you can also work in national labs, other things like that, lots of places do research and dont require you to teach
I have an idea which I believe could produce unlimited energy, /sci/.
(just a spoiler, i am an undergrad who knows nothing, perhaps there is some giant thing i am missing that would make this not work)
So, geothermal energy works because water is heated by the earth until it boils and the steam spins turbines, correct?
I am guessing the limiting factors with conventional geothermal energy is the availability of this water heated by the earth; I am guessing in most cases, it is brought in externally...
My idea: What if we made a giant pipe that goes...
Comment too long. Click here to view the full text.
>>8024257
>I have an idea which I believe could produce unlimited energy, /sci/.
Ya blew it
>>8024257
>unlimited
The core doesn't contain infinite energy. Basically you're proposing artificial geothermal vents.
>>8024257
there are already geothermal power plants. Your proposal is "build a geothermal power plant next to the ocean," which has also already been done.
Halitosis is caused by sulfur producing microbes. Because sulfur just sort of burns I theorize you would need to chew on a saltpeter charcoal mixture for a while before you're saliva would be volatile enough to actually burst into flame.
I know explosive powders usually only work because they're in powdered form, and watery liquids tend to be bad for fire so I am bit concerned with that.
But in general, could you effectively spit fire if you have halitosis?
ya
>>8024174
You are a retard.
>>8024200
Yes, I am. But I am also wanting to know what it would take to turn halitosis into dragon breathe if possible.
Is there anything in the scientific world considered to be unholy? Like something that even scientists say not to delve into?
>>8023849
Race and IQ
>>8023861
Politically incorrect =/= unholy.
>>8023861
Speaking of that, after China, Japan is now lifting ban on fetal genetic experimentation.
Guess it's time to start learning either chinese or japanese.
Why do environmentalists always push for wind turbines and solar cells but conveniently omit geothermal from their usual narrative?
Is it because they want the West to go on a wild goose chase for energy "sources" which have a net negative EROI while developing economies burn all the coal they can and zoom past us in the meantime?
>>8023838
Geothermal is dangerous because it lets all the gravity out of the earth
Liberals don't believe in economics
They are mostly marxists who believe in some sort of magical post-scarcity paradise
>>8023842
Also, energy tubes corrode and melt way down thar!
ITT: Meme textbooks widely recommend that no one actually uses
David Klein - "Organic Chemistry As A Second Language"
>>8023806
That's actually a really good book if you work all of the exercises. It's been maybe 7 years since I last read it, but I still remember some of my favorite problems from that book like this one from the chapter on sequences and series (I think chapter 3):
Show that you can rearrange (reorder) the terms a conditionally convergent series (that is not absolutely convergent) to sum to any real number s.
>>8023806
>nobody reads
literally used it for my first analysis course, the first 6 chapters are great.
don't get why it has such a bad rep
how is it possible for a drug to make you "want to get things done"
is "getting things done" some sort of mental-muscle you can train and improve consciously? if a chemical can do it, why can't you?
>>8023772
Chemicals can only form habit in relation to those same chemicals. You'd need a fungi or bacteria for any reasonably advanced control of habit formation.
Some drugs can induce a state of mania though.
>>8023772
From what I heard, those drugs makes things that you would normally find boring to be exciting and fun. If you were to find studying to be boring, then taking that drug would make it not boring.
Not sure though if you could train yourself to find boring things to be enjoyable.
>>8023925
>>8023925
>those drugs makes things that you would normally find boring to be exciting and fun
I can confirm this to be true, if you know how to use them.
You have to "intend" to study to some degree, crack open the book and start reading for a bit, and if you take ritalin it's gonna make it just way more enjoyable and interesting.
But if you're watching a movie and you take it, it's not gonna...
Comment too long. Click here to view the full text.
hey /sci/ can some of you scientists explain to me the science and physics behind parallel universes multiverse alternate realities and how they might be real and we could exist in them or apart of them or within it all, thank please help me /sci/ I really want to know this stuff.
>>8023392
Mods ban this spamming faggot
>>8023392
basically there is string theory, which is enormously incomplete (value of the string coupling constant when? exact equations when?) and possibly 100% wrong. Because we know so little about what the theory actually predicts, there is a lot of room for what it could predict.
So people say things like, hey, if string theory turns out to be this way, then it's possible that there are parallel universes.
Which is analogous to saying "hey, that theory which is in its infancy, we don't really...
Comment too long. Click here to view the full text.
>>8023428
where's your theory?
Scientists,
If I work out a lot, and have lots of excess fat, will my body automatically take the fat already existing on my body to make muscles? Or will I have to take in a lot of carba still?
>>8023320
This is a /fit/ thread topic
Fat first to go, but if you don't get enough carbs your body will not make muscle gains
Muscles are made of protein.
Fat is made of fat.
You can't convert fat into protein.
Working out burns your muscles as well.
>>8023320
What doggo is that
Say you are very very wealthy ($$$ plays no role), but you really want to pursue a natural science (mathematics, or physics, etc) on a bachelor level and, if possible, up to a masters degree and beyond.
Would you bribe the guys at an ivy to be enrolled in one of the most prestigious schools, or go to a regular uni and just enjoy your time, or hire the best private tutor in the world, or whatever?
How would you do it and why?
Why would I need to hire a private tutor? Self-learning is the best
>>8023304
how is that the best when some1 who is better than you can help you at any given moment/>?
bring up my post
![animal-foods1[1].jpg](https://i.imgur.com/LQmvT1L.jpg "animal-foods1[1].jpg")
What's the scientific consensus on meat?
>>8023240
100% of scientists agree that meat is tasty.
its good in moderation just like everything else on this planet
>>8023240
It's delicious
>[citation needed]
Is race an artificial social construct?
No.
Yes.
daily polVSsjw thread ?
daily polVSsjw thread
