Archived threads in /sci/ - Science & Math - 881. page

>>8652268
everybody hates flies, they're disgusting, so the answer is no

>>8652278
They are disgusting, but they can still feel pain.

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yes

t. fly

It's almost like the field realized that the data it had accepted at face value in the field's infancy was discovered to be subtly flawed as time went on.

>>8652226
I'll try to make it short for you brainlets.

Historic data records undergo periodical revisions, new versions come out, which hopefully are better than the old ones. You discover new instrument issues and are able to better correct for them, you discover new methods of flagging bad data etc. It's nothing new, it's been done since fucking forever, and it's not limited to temperature measurements - every single satellite product you can find undergoes this process.

Tabloids and shitty blogs call it a conspiracy and seek proof by pointing out where data is adjusted in a way that it fits their respective narrative, while ignoring all adjustments made to the data that contradicts their poor theory.

It's a non-story.

>>8652226
This will give the best explanation:
https://arstechnica.com/science/2016/01/thorough-not-thoroughly-fabricated-the-truth-about-global-temperature-data/
The simplest example of 'correcting measurements' in the article above is where you subtract the tare weight from a mass you're measuring, so you're measuring the mass of a substance, and not the mass of the substance and container together.
The logic behind the temperature measurement corrections is the same, but it's a little harder to explain with statistical models, because in a statistical model we have a known input and a known output, and we have to come up with some model that will map the input to the output, and also work for future inputs. One way of doing this is by 'holding' some input/output data, building a model on the remaining data, and testing it on the held data, then repeating several times so you know your model works for different kinds of 'unseen' data.

We can stop ocean acidification by dumping baking soda into the ocean.

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only self bump

Remember, human populations that depend on seafood are at risk.

genetically modify a new eco system

>>8652209

Unparalleled autism.

>>8652219
That's OP, reposting this shit month after month.

>mash a bunch of strange functions together
>find the derivative
>ask for the integral from other account
>????
>enjoy eternal Ron Gordon buttmad

>>8652204
Have a genuine interest and have courage.

>>8652231
PS you can't manufacture genuine interest

you either have it or you don't

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>>8652233
How does one know if he has GENUINE interest in a subject ?

>nobody knows this

brb kms

Alveolar hypoventilation gives an increased PaCO2, which in turn decreases the HCO3–/PaCO2 ratio, thereby decreasing the pH. I assume the ratio doesn't provide neutrlisation quickly enough. Not sure tho

>>8652193
>If 1 mole of CO2 dissociates in blood to 1 mole of H+ and 1 mole of HCO3-
guess what: it doesn't

also, I don't understand the question

>>8652174
Sure.
>implications
it's gay as fuck

>>8652178
/thread

>>8652174
like a planet-sized prison basically

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>image must be object
The arrows don't even have to be functions and the notion of image doesn't appear in the definition of a category. The object n is, by definition, what you may call codomain (target) of each arrow in hom(m,n).

an arrow f in hom(m,n) and an arrow g in hom(n,k) can be composed (f and g are matrices and the composition is matrix multiplication). The objects (integers in this case) don't have do be codomains of functions. In fact, there are axiomatizations of the notion of Category that avoid object altogether (you can come up with axioms that drop them, because the class of objects is always in bijection with the class of identity arrows in a category)

Categories that can be viewed as classes of sets with functions as arrows ... those are called "concrete categories"
https://en.wikipedia.org/wiki/Concrete_category

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I see your point, but how am I supposed to understand pic related definition "morphism A to B"? Am i "escaping" category of natural numbers via hom(m,n) in Mat or are there two types of objects in Mat (numbers and matrices)?

>Objects don't have to be codomains of functions
you mean: of morphisms?

Will this thing become clearer later, or should I fully understand it at the very beginning of category theory?

>>8652140
a category has two sorts: objects and arrows. There's nothing that says that the objects and arrows need to be similarly constructed (whatever that would mean), just that they need to satisfy the category axioms.

In this example, it might help to think about the objects being R^0, R^1, R^2, etc. and the arrows being linear maps between them. Then we're just abstracting out the fact that each R^n is a concrete space, and instead associate each with its dimension (n).

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>>8652080
>babby's first pythagorean triple: (3,4,5)

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>babby's first neutralisation with NaOH and HCl.

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>>8652080
>babby's first differential equation: exponential growth

>>8652003

SO you think the average person has an iq of 20? Wow, you're really impressing me with your bald genius :^)

>>8652003
If bald people are so smart, why don't they cure balding?

>>8652034
Youre not a genius either, the other balds may being the average up.

>visual evidence in the fucking sky
>fictitious

ummmm what?

>>8651939
You're literally right now in the fucking ground because of a force, how can you say that force is fictitious?

>>8651969
centripetal force is an example of ficititicous force that we can feel, observe, and even measure but this force is not a force in a classical sense.

Actually doing something useful.

Getting an important concept named after you.

>>8651886
>tfw shit surname and even if i discovered something they wouldn't use my name

I can, but I won`t.

>>8651754
Would you do it for a specific value of p like, 100?

>>8651797
OK, you got me, I can`t, I was lying, the whole thing`s a house of cards, I only visit /sci/ to feel worse about myself.

>>8651478
All of the above except the weeb part.

I'm not a goddamn pedo.

>>8651490
tbqh senpai i never was, i just said it to make the transition sound more dramatic

>>8651499
I bet you weren't even a NEET, you're just a big fat phony.

>>8651316
The answer is quite simple, you're nuts

Next time try the two glass method

Basically your eyes are programmed to constantly move around and scan the area. Your brain is adapted to this system so when you fight saccades you halucinate, but as it says on the wiki page when saccades begin you cant stop them, that's why your thoughts would race, because you could no longer control a physiological system which you were focusing pretty strongly on.

I cant find the article that describes this but i didn't look very hard.