/sci/ - Science & Math

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Anonymous Sat 24 Jul 18:38:48 2021 No.13431206 View Reply Original Report

Quoted By:

Is it possible for something to happen here at the exact same time as something on the other end of the universe!?

For example, right now this second as I am writing this, is something happening on an alien world millions of light years away at the exact same time? Or, does the distance involved between earth and the other planet mean nothing can happen at the same time on either world? I hope I'm explaining this properly, it's something I always wondered. Pic unrelated

4 posts omitted

Anonymous

Anonymous Sun 25 Jul 2021 11:01:35 No.13433326 Report

Quoted By: >>13433345

>>13431212
Then if a tree falls in a forest and nobody is around to hear it, does it still make a sound?

Anonymous

Anonymous Sun 25 Jul 2021 11:10:12 No.13433345 Report

Quoted By:

>>13433326
Yes, of course
Buddhism is shit

Anonymous

Anonymous Sun 25 Jul 2021 13:51:22 No.13433703 Report

Quoted By:

>>13433266
yes , if we had a telescope to observe that exact event we would have to wait millions of light years to see it. same idea is that a lot of stars in the night sky don't exist anymore but we still see them because the light has traveled from millions of light years to reach earth

Anonymous

Anonymous Sun 25 Jul 2021 14:20:21 No.13433796 Report

Quoted By: >>13433803

>your alien gf who is just like you but a Qt female and would be a literally perfect fit for you is billions of lightyears away and you will never have a beautiful teenage romance together
>Ywn conceal the fact that she is an alien when she comes to earth and help her blend it and get married and be perfect together and have half alien kids

Anonymous

Anonymous Sun 25 Jul 2021 14:21:45 No.13433803 Report

Quoted By:

>>13433796
>Tfw she's thinking exactly of you and is heartbroken you'll never meet

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Anonymous Sat 24 Jul 22:45:43 2021 No.13431926 View Reply Original Report

Quoted By: >>13433801

*sets psychology back 2500 years*

Anonymous

Anonymous Sat 24 Jul 2021 23:46:38 No.13432063 Report

Quoted By:

Alright pal what's your thesis, don't be lazy, show your work

Anonymous

Anonymous Sun 25 Jul 2021 13:57:18 No.13433725 Report

Quoted By:

>imagine being a jew
>imagine being a pedophile
>imagine having a technique called pressure technique that you use to determining if a person has been sexually molested as a child
>imagine being a cocaine addict and claiming that cocaine is a magic substance that cures all mental issues
>imagine later saying that parents should fuck with their kids
>imagine being an atheist
>imagine being a chainsmoker
>imagine being the uncle of the creator of propaganda

Anonymous

Anonymous Sun 25 Jul 2021 13:59:57 No.13433735 Report

Quoted By:

>pisscology
not science or math

Anonymous

Anonymous Sun 25 Jul 2021 14:21:17 No.13433801 Report

Quoted By:

>>13431926
Big nosed homos always knew a lot about those topics due to their occultism (which is about manipulating people).

He was poisoning the well before real humans realized about their tricks.

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Anonymous Sat 24 Jul 15:24:37 2021 No.13430781 View Reply Original Report

Quoted By: >>13433253 >>13433795

Will it detect aliens?

6 posts omitted

Anonymous

Anonymous Sun 25 Jul 2021 10:25:38 No.13433253 Report

Quoted By: >>13433307

>>13430781
it will detect micro meteorites hitting its billion $ mirrors

Anonymous

Anonymous Sun 25 Jul 2021 10:51:03 No.13433307 Report

Quoted By: >>13433754 >>13433798

>>13431921
>>13433253
To be able to see what's out there, it's damn worth trying. If it goes right, it'll be a marvel of precision engineering. If it goes wrong, we'll have a change to push our methods and engineer even greater precision—plus it'll make a great case for in-space manufacturing.

Say, /sci/, can anyone here tell me—what are the theoretical limits of astronomical imaging? With a large and powerful enough imaging apparatus, could you see individual rocky planets orbiting around distant suns? How about their moons, the clouds in their atmosphere, the patterns on the surface of their crust? Or is this level of imaging forever locked out to us? In other words, what's the resolution on the light coming in to us?

Anonymous

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Anonymous Sun 25 Jul 2021 14:07:09 No.13433754 Report

Quoted By:

>>13433307

Anonymous

Anonymous Sun 25 Jul 2021 14:20:06 No.13433795 Report

Quoted By:

>>13430781
It will detect an unfolding error

Anonymous

Anonymous Sun 25 Jul 2021 14:20:45 No.13433798 Report

Quoted By:

>>13433307
>Say, /sci/, can anyone here tell me—what are the theoretical limits of astronomical imaging?
The diffraction limit is probably more important than the problem with interstellar dust. This should be pretty obvious so I guess you are not a physicist.
>With a large and powerful enough imaging apparatus, could you see individual rocky planets orbiting around distant suns? How about their moons, the clouds in their atmosphere, the patterns on the surface of their crust?
Let's try the number, OK? Assuming an alien city 300 km across (really big by our standards) , 4 light years away. 300 km is 1 light milliseconds. Ratio width/distance is roughly the ratio wavelength/aperture.
4 light years is 126144000 light seconds, for a ratio of 1/126144000000.
Assuming wavelength of 1 um (infrared), we need an aperture of 126144 m. That is 126 km. It is considerable outside what we have today, probably what we can put on the moon (problems with sagging in gravity). So this behemot will have to be built and operated in space. And this is for the nearest star.

OK; so let us think BIG. We place an annular reflector in Earth-Sun L3 (the night side) with the periphery in sunlight (for positioning and station keeping). That gives us an aperture of 12,000 km, nearly 100x of above. And with that we can only see 400 lightyears out to see an oversized city.

>Or is this level of imaging forever locked out to us? In other words, what's the resolution on the light coming in to us?
We sure need something better.

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Solve this

Anonymous Sun 25 Jul 09:57:29 2021 No.13433212 View Reply Original Report

Quoted By: >>13433485 >>13433493 >>13433497 >>13433581 >>13433687

Trigonometric clusterfuck integral.
Took me about 40 minutes, this will take you on a fun ride on trig identities, complex numbers and even Eulers (oilers) number makes a cameo.

Have fun

1 post omitted

Anonymous

Anonymous Sun 25 Jul 2021 12:19:43 No.13433485 Report

Quoted By:

>>13433212
the sqrt in the denom becomes tan(2x), cancels out the tan(2x) and 1/cot(2x) on top.
the cos^4 - sin^4 becomes cos(4x) which cancels the bottom.
Im guessin the sec^2 is on the top and not the bottom
The deriv of tan is sec^2 so its just the integral of e^-2x

Anonymous

Anonymous Sun 25 Jul 2021 12:23:40 No.13433493 Report

Quoted By:

>>13433212
Do your homework /sci/ kiddie

Anonymous

Anonymous Sun 25 Jul 2021 12:26:38 No.13433497 Report

Quoted By:

>>13433212
>calculating
use wolfram retatd

Anonymous

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Anonymous Sun 25 Jul 2021 13:01:54 No.13433581 Report

Quoted By:

>>13433212
i/2 e^-2tan(x) +C

Anonymous

Anonymous Sun 25 Jul 2021 13:46:28 No.13433687 Report

Quoted By:

>>13433212
>not using latex
>rather shitty calligraphy
$sorry but no$

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Anonymous Sat 24 Jul 07:16:09 2021 No.13429967 View Reply Original Report

Quoted By: >>13431720 >>13433367

How can steampunk become a reality?

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Anonymous

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Anonymous Sat 24 Jul 2021 21:28:53 No.13431720 Report

Quoted By:

>>13429967
>How can steampunk become a reality?
When we get a microfusion reactor ready.

>>13430318
Steam can be raised by other means than just coal or other fossil fuels.

Anonymous

Anonymous Sat 24 Jul 2021 21:41:24 No.13431748 Report

Quoted By:

>>13430318
we will use thorium in my steampunk kingdom

Anonymous

Anonymous Sat 24 Jul 2021 21:45:21 No.13431756 Report

Quoted By:

>>13430339
>>Steam powered dildo
He's got to be trolling at this point.

Anonymous

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Anonymous Sun 25 Jul 2021 11:25:06 No.13433367 Report

Quoted By:

>>13429967
If by Steampunk you mean mechanical rather than electronic computation, we should be well on our way with micro mechanics as in MEMS, pic. related.

Anonymous

Anonymous Sun 25 Jul 2021 13:43:47 No.13433679 Report

Quoted By:

>>13429970
fpbp

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Cognitive deficits in people who have recovered from COVID-19

Anonymous Sat 24 Jul 00:07:33 2021 No.13428863 View Reply Last 50 Original Report

Quoted By:

Enjoy losing your small cognitive reserve, /sci/
https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(21)00324-2/fulltext

>The scale of the observed deficit was not insubstantial; the 0.47 SD global composite score reduction for the hospitalized with ventilator sub-group was greater than the average 10-year decline in global performance between the ages of 20 to 70 within this dataset. It was larger than the mean deficit of 480 people who indicated they had previously suffered a stroke (?0.24SDs) and the 998 who reported learning disabilities (?0.38SDs).

>For comparison, in a classic intelligence test, 0.47 SDs equates to a 7-point difference in IQ.

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Anonymous

Anonymous Sat 24 Jul 2021 19:55:12 No.13431472 Report

Quoted By:

>>13429719
she could have died from climbing the stairs lmao

Anonymous

Anonymous Sun 25 Jul 2021 02:25:24 No.13432391 Report

Quoted By:

I heard vaccines increase your IQ

Anonymous

Anonymous Sun 25 Jul 2021 03:00:42 No.13432466 Report

Quoted By:

>>13428998
>If COVID were actually a threat borders would be closed to prevent its spread
!!!!!
I wish /pol/ weren't so fucking lazy and useless.
A campaign based on that idea would make heads explode.

Anonymous

Anonymous Sun 25 Jul 2021 12:55:42 No.13433568 Report

Quoted By:

>>13429719
the vaccines still offer protection against the mutated variants, just at various efficiency rates. in practical terms you can still get the mutated strains, but it will be the difference between a nasty flu and a mild cold. severe cases of 'rona among the vaccinated are statistically almost unheard of.

keeping ahead of these mutations is also why the various companies are developing 'booster' shots.

Anonymous

Anonymous Sun 25 Jul 2021 13:35:11 No.13433653 Report

Quoted By:

>>13429073
How do you read the diagram. Explain in laymen term please.

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Anonymous Sat 24 Jul 20:24:45 2021 No.13431563 View Reply Original Report

Quoted By: >>13433492

based

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Anonymous

Anonymous Sun 25 Jul 2021 12:23:30 No.13433492 Report

Quoted By:

>>13431563
>Africans destroying Chinese solar panels
Who do I root for?

Anonymous

Anonymous Sun 25 Jul 2021 12:33:28 No.13433512 Report

Quoted By:

>>13433474
>t. snownigger

Anonymous

Anonymous Sun 25 Jul 2021 12:43:32 No.13433542 Report

Quoted By:

>>13433474
>t. noodlenigger

Anonymous

Anonymous Sun 25 Jul 2021 13:17:28 No.13433608 Report

Quoted By:

>>13433178
>>13433290
If someone took my land, covered it in something valuable that produces profit and then I took that land back by force I wouldn't be destroying the value that was added to it, but that's just me.

Anonymous

Anonymous Sun 25 Jul 2021 13:31:38 No.13433642 Report

Quoted By:

>>13433295
they are niggers. since their skin is not white, they are prone to being stupid

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Perpetual Motion

Anonymous Sun 25 Jul 13:23:24 2021 No.13433620 View Reply Original Report

Quoted By: >>13433634

What if I told you that I discovered a perpetual motion machine but I don’t wanna share it because I hate the human race

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woah:

Anonymous Sat 24 Jul 08:06:16 2021 No.13430031 View Reply Original Report

Quoted By: >>13432337

holy shit.

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Anonymous

Anonymous Sun 25 Jul 2021 01:44:45 No.13432312 Report

Quoted By:

>>13430297
The megacorporations selling vaccines only fund research that will make them money. Public domain therapeutics like Vitamin D or IVM don't make money, simple as. Seriously, ALL of the vaccine companies are valued at least 4x compared to 12 months ago, the idea that they aren't spending a miniscule amount (billions for them) to keep shilling their product is delusional

Anonymous

Anonymous Sun 25 Jul 2021 01:57:24 No.13432337 Report

Quoted By:

>>13430031
Doesn't this just mean that people who died from COVID have been sick for a while? In other words, they have low D because they're all fucked up, not the other way around.

Anonymous

Anonymous Sun 25 Jul 2021 03:10:49 No.13432482 Report

Quoted By: >>13433324 >>13433622

>>13432279
What happened?

Anonymous

Anonymous Sun 25 Jul 2021 11:01:26 No.13433324 Report

Quoted By:

>>13432482
My hunch is Michelle Obama sticking her nose into our diet

Anonymous

Anonymous Sun 25 Jul 2021 13:24:43 No.13433622 Report

Quoted By:

>>13432482
onions

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Dasani

Anonymous Sun 25 Jul 12:31:08 2021 No.13433505 View Reply Original Report

Quoted By: >>13433522 >>13433561

posted this on /x/ a while ago but jannies man

>enhanced with minerals

???

i am literally concerned about drinking fucking water
kms off this disgusting human-run planet, or give the wild back their nature

Anonymous

Anonymous Sun 25 Jul 2021 12:36:59 No.13433522 Report

Quoted By: >>13433558

>>13433505
its not the same as drinking from a well. hard water is usually rich in calcium chloride and sodium bicarbonate which is what you find in here, but it also has trace minerals including zinc, magnesium and other things which this reverse osmosis then remineralized water doesn't provide. there's a reason why athletes don't like it. also possibly why coke makes you feel like shit compared to other brand lines

inb4 you get your minerals from food https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1956535/

Anonymous

Anonymous Sun 25 Jul 2021 12:52:14 No.13433558 Report

Quoted By:

>>13433522
okay so basically it's unhealthy for you
but how bad, or is this something that needs a study
UK banned it for good reason??

Anonymous

Anonymous Sun 25 Jul 2021 12:53:33 No.13433561 Report

Quoted By:

>>13433505
be worried about the microplastics from the bottle and production process, not the minerals they add for flavor. get a decent filter for your sink and drink that.

Anonymous

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Anonymous Sun 25 Jul 2021 13:19:04 No.13433610 Report

Quoted By:

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Cognitive deficits in people who have recovered from COVID-19

Perpetual Motion

woah:

Dasani