Archived threads in /sci/ - Science & Math - 148. page
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is there any meaningful dialog between any branch of philosophy and science ?
no
philosophy is dead
>>8071814
Depends on your definition of "meaningful".
>>8072313
what a terrible answer
How can we be so sure vaccines don't cause autism ?
I understand the science behind vaccines and don't deny that they saved plenty of lives and i understand the difference between correlation and causation but what if vaccines really are the cause of the rise autism ?
How dumb will you look when it has been confirmed vaccines cause autism ?
Because there is not one single thread of evidence for them. If you spend more than 10 seconds reading an article and follow their sources. Every single article that claims vaccines causes autism connects with a fraudster (aka a person who later exposed to the world that they said what they said for money) - in case you didnt know what the word meant with your 5th grade education
>>8071642
>How can we be so sure vaccines don't cause autism ?
Because we have no reason to believe they do
Besides, what in a vaccine would cause autism?
>>8071642
How can we be so sure you don't cause autism?
One idea for how the Moon formed is the giant impact hypothesis. Theia, a Mars-sized planet, struck Earth 4.5 billion year ago and the debris field that remained around Earth ultimately coalesced into the Moon. Does anyone know how fast Theia would have struck the Earth in km/s?
-1/12
>>8071439
Dammit you!
I was just googling this nonsense and I still don't get it.
Encyclopedia Cassiopeia
How the observer can collapse wave funcion simply by observing particle?
Duuuh
Observing means interacting
>>8071567
No it doesn't, it means anything that leads to a subjective change in knowledge.
An electron can move through and interact with an electric field without collapsing.
Lab partners or managers or procedures. Work or class, share them.
>be masters student as a TA in a basic applied chem class
>all students have been through at least a year and a half of courses so far
>procedure calls for 15g of sample -> add 15ml DI water -> add 5ml of HCl
>300+ lb idiot student starts testing sample
>it isnt working help! its basic not acidic!?!
>spend 10 minutes...
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Pic related
>>8071291
holy. fuck.
>>8071291
kek.
every time
How do you convince someone who thinks the square root of 250 grams is 500 (0.25 kg's square root is 0.5kg) that they're wrong?
>>8070988
Why are those particular countries circled?
>>8070988
Sqrt(0.5) = 0.25
Sqrt(500) = 10 Sqrt(5)
>>8070988
Because the square root of 0.25 kg is 0.5 kg^(1/2), and the square root of 250 grams is ~15.8 grams^(1/2).
1 kg^(1/2) =/= 1000 grams^(1/2)
![Binary_Back[1].jpg](https://i.imgur.com/hI3USE8.jpg "Binary_Back[1].jpg")
We have laws about the conservation of energy and matter.
Does the same apply to information? When information is destroyed is it really gone or just scrambled? Couldn’t you restore the information if you knew the proper algorithm?
>>8070886
The information isn't scrambled, actually.
It's restorable unless you write new information over it.
information is the arrangement of matter and yes it can be destroyed just as it can be created
>>8070886
That's a topic of debate. The main offender are black holes. Anything they suck up gets compressed into a singularity, which by definition (presently we know, at least) does not give any information back save for hawking radiation. Hawking radiation (presently theorized) can not be used to figure out what went in. e.g. information is lost.
Now, if you were talking about something like a hard drive, no matter what you do to it, degauss it, burn it, crumble it, if you know the state of the universe and the...
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Have any NP-hard problems in math ever been solved?
>>8070834
What do you mean solved? Lots of applied computer science requires us to find solutions to instances of NP-hard problems.
I'm working on some graph theory weirdness that with some more development might give rise to a general solution method for NP-hard problems, but I'm not sure if it's feasible or not yet because that's not the main focus of what I'm doing.
>>8070844
By solved I mean transofmred into a problem where a solution can be found to any instance of the problem.
For example, for the traveling salesman problem, that would be finding the lest cost path every time given the inputs we specify (such as the distance between cities, the conncections between cities, etc.)..
I'm taking the traveling salesman problem as an example because it's NP-hard (and NP-complete).
Anyone knows how to solve the convergence of this integral ?
[eqn] 1 - x^4 \geq 1 - x [/eqn]
[eqn] \sqrt{1 - x^4} \geq \sqrt{1 - x} [/eqn]
[eqn] \frac{1}{\sqrt{1 - x^4}} \leq \frac{1}{\sqrt{1 - x}} [/eqn]
[eqn] \int_0^1 \frac{1}{\sqrt{1 - x^4}} dx \leq \int_0^1 \frac{1}{\sqrt{1 - x}} dx = \int_0^1 \frac{1}{\sqrt{x}} dx = 2[/eqn]
>>8070862
>>8070910
How can i see it?
>>https://boards.fireden.net/sci/thread/8068656
suite de ce fil
How can C be the speed limit in the universe when quantum entanglement can transfer information instantly (view "spooky action at a distance")?
because dumbass monkey brains have an habit of misinterpreting shit
>>8070810
>not even knowing enough information theory to understand that no information has been transmitted
>>8070813
" any measurement of a property of a particle can be seen as acting on that particle (e.g., by collapsing a number of superposed states) and will change the original quantum property by some unknown amount; and in the case of entangled particles, such a measurement will be on the entangled system as a whole. It thus appears that one particle of an entangled pair "knows" what measurement has been performed on the other, and with what outcome, even though there is no known means for such information to...
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Some of you think psychology is pesudo-science but what do you think about behavioral neuroscience / neuropsych?
I thought psychology was just uninformed people's talking about their observations of active neuroscience?
