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420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated July 26)

Hypothetical flat Urf

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- Fri, 06 Sep 2019 06:23:57 EST JSks+45P No.57792
File: 1567765437710.jpg -(33667B / 32.88KB, 480x360) Thumbnail displayed, click image for full size. Hypothetical flat Urf
Lets say hypothetically the earth were flat.

The FE camp says the sun rotates around the the surface of the disc.

The disc is stationary on it's axis but rising to fake gravity.......

Ok....cool but then why would the flat earth be a round disc?

>Playing devils advocate in this tread
>Why would a flat earth that isn't spinning be a round disc?
6 posts and 2 images omitted. Click View Thread to read.
>>
Edwin Salpeter - Thu, 03 Oct 2019 18:45:25 EST tnb1PFH+ No.57810 Reply
>>57808
"What's wrong, Squid-Kun? Could it be you're craving my McNuggies?"
>>
Urbain Le Verrier - Tue, 15 Oct 2019 22:36:16 EST I49senTg No.57821 Reply
>>57810
"Whatcha thinking about?"
"Oh, I dunno, just life I guess."
>>
Biggles - Wed, 16 Oct 2019 20:15:53 EST HeCUPa43 No.57822 Reply
1571271353380.jpg -(37661B / 36.78KB, 1280x720) Thumbnail displayed, click image for full size.
>>57792
Personally believe this bullshit about loathing in the
Love for the perfect belif that gods or god, wait til [] can say we had humanity

high redshift mirrors

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- Wed, 06 Mar 2019 13:31:08 EST wIGiff+l No.57553
File: 1551897068878.jpg -(342947B / 334.91KB, 1000x1000) Thumbnail displayed, click image for full size. high redshift mirrors
lets say you were able to place a mirror in space out at such a distance that the mirror experience cosmological redshift from your perspective. If you were to shoot a laser beam of some wavelength at the mirror then the light reflecting off the mirror would be a longer wavelength than the originating laser because of the relativistic doppler effect.
what wavelength would the light be when it got back to you after bouncing off the mirror? would it be the original wavelength or would it be redshifted?
if its not the original wavelength then how was energy conserved?
13 posts omitted. Click View Thread to read.
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Johannes Kepler - Wed, 09 Oct 2019 01:24:51 EST aGo2dCNY No.57817 Reply
>>57815
i'm permanently banned from all google platforms including youtube, would you be willing to describe the contents of the video for me or upload it to somewhere thats not google owned so i can view it?
>>
James Christy - Fri, 11 Oct 2019 06:57:14 EST JvOVK4Sl No.57819 Reply
>>57817
Jesus Christ did you attempt to complete Operation Glowing Dove on them?
>>
Jist - Tue, 15 Oct 2019 15:30:24 EST HeCUPa43 No.57820 Reply
>>57553
Sounds like you fell into some distinction between quatem particals, and what happens with what lies in the scope of a laser pointer .

Fermi Paradox... why?

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- Thu, 22 May 2014 00:54:34 EST ILYTISHs No.53812
File: 1400734474447.png -(111524B / 108.91KB, 400x325) Thumbnail displayed, click image for full size. Fermi Paradox... why?
Another thread made me start thinking about this. The Fermi Paradox states (thanks, Wikipedia):

>The Sun is a young star. There are billions of stars in the galaxy that are billions of years older;
>Some of these stars probably have Earth-like planets which, if the Earth is typical, may develop intelligent life;
>Presumably, some of these civilizations will develop interstellar travel, a technology Earth is investigating even now, such as that used in the proposed 100 Year Starship;
>At any practical pace of interstellar travel, the galaxy can be completely colonized in a few tens of millions of years.

If that's the case, why haven't we been colonized already, or at least seen evidence of intelligent life somewhere in our galaxy?

My take: either A) Life takes a long time to develop, and somehow, improbably, we're the first planet to develop an intelligent civilization in our galaxy, or at least one of the first. We don't see anyone else because there isn't anyone else to see... yet, or we're all still too far apart.

Or b) Given the size and composition constraints of a planet able to foster and sustain life (as far as we know, "habitable zone," big enough to have an atmosphere, small enough to still be rocky, etc.) and continue long enough for said life to begin to explore the galaxy, the home planet simply runs out of resources before meaningful headway can be made. I think this is more of a slow-death kind of thing where maybe we get to do some exploration within the solar system and maybe a bit beyond for a while, but overpopulation, war, disease, famine, and whatever else causes us to realign our priorities from space exploration to merely sustaining life on our own planet. A civilization that had the foresight to know something like that was happening could theoretically, if they had the goal of galactic expansion from the start, avoid this situation, but the problem is that NO civilization has that kind of 10,000 year plan from the get-go, and they all sputter out right before they could have pulled it off. There's not a textbook on "how to succeed as a species" that gets handed out to a life form when it develops self-awareness, so following the natural progression, they all fail. the ability to extract resources necessary for galactic colonization from anywhere off-planet becomes viable too late in the game to save the species.

tl;dr - We're all gonna die, prolly. Thoughts?
346 posts and 80 images omitted. Click View Thread to read.
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Johannes Kepler - Wed, 09 Oct 2019 01:33:13 EST aGo2dCNY No.57818 Reply
1570599193138.jpg -(115286B / 112.58KB, 1268x619) Thumbnail displayed, click image for full size.
>>57813
Its not even a matter of having a sense of humor, its just a fact that Hitler declared the Finns to be "honorary aryans" for the duration of the war because they were good allies. I can see how someone who is ignorant of history could see that statement as some kind of /pol/ shit, but it really isn't. Hitler opportunistically declared all sorts of people to be "honorary aryans" pretty much whenever it fit his immediate interests to do so. Various individual jews, muslims and blacks were all accepted as equal to whites by the legendary king of the nazis. Show me a principled racist and I'll tell you how to find the radius of a circle with negative area.

THE MOON IS OURS BITCH!

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- Sat, 20 Jul 2019 13:56:32 EST aTAck/kf No.57760
File: 1563645392145.jpg -(284082B / 277.42KB, 1440x1068) Thumbnail displayed, click image for full size. THE MOON IS OURS BITCH!
WE FUCKING DID IT GUYS HOLY SHIT!!!!
2 posts omitted. Click View Thread to read.
>>
Riccardo Giacconi - Sun, 25 Aug 2019 19:08:44 EST DmOxsCb6 No.57786 Reply
>>57782
The flag didn't actually turn white, the French sent someone up there to remove the American flag and replace it with theirs.


WTF is up with barred spirals?

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- Sat, 23 Mar 2019 22:16:58 EST aGo2dCNY No.57596
File: 1553393818527.jpg -(6845831B / 6.53MB, 6637x3787) Thumbnail displayed, click image for full size. WTF is up with barred spirals?
Why did all of the material in those two spiral arms lose all of their angular momentum and head for the core at the same time? I bet those two hard right turns those arms tax are separated by 15-20kpc. Since so many galaxies do this, whatever is happening to this one must be pretty common.
Also check out all those galaxies buried in the background, there must be some kinda awesome galaxy cluster back there.
17 posts and 4 images omitted. Click View Thread to read.
>>
Joseph von Fraunhofer - Tue, 17 Sep 2019 21:34:48 EST Yd0hzS4N No.57802 Reply
>>57794
the magnetic field created by any active galactic nucleus should be radially symmetric with respect to the axis of rotation so if barred spirals are caused by active galactic nuclei which are off axis from the host galaxy's rotation by 90ΒΊ or so and the observed probability of off axis galactic nuclei should predict the observed frequency of spirals with bars.
i don't know if it does or not
>>
A_Wizard !cMZsY.BCnU!!vVWR8L52 - Tue, 17 Sep 2019 23:11:48 EST 7TrGAQFu No.57803 Reply
>>57802
I've been drinking, so I'm not going to check if your theory is accurate or not... but I will point out that you forgot one thing. You forgot to include the relation of the galaxy to other fields such as those manifesting from other galaxies. (though honestly, I suspect that magnetic fields aren't generated from a source directly, if this makes sense. Think of flowing water. A whirlpool in a stream is not generated by the rocks below it, it's simply directed into this form by them. If this does not make sense, I will respond eventually while not drinking.)

NSFW PICS ITT

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- Mon, 25 Mar 2019 00:14:59 EST aGo2dCNY No.57605
File: 1553487299164.jpg -(913441B / 892.03KB, 1027x1027) Thumbnail displayed, click image for full size. NSFW PICS ITT
galaxies fucking
7 posts and 3 images omitted. Click View Thread to read.

Cool shit in our Solar System!

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- Mon, 22 Jul 2019 14:41:25 EST 51a1lc6j No.57761
File: 1563820885533.jpg -(116780B / 114.04KB, 2000x2000) Thumbnail displayed, click image for full size. Cool shit in our Solar System!
First one is Saturn's Hexagon on its north pole.
Essentially formed because of a turbulent storm near the vortex creating two weird waves that makes hexagons naturally.
5 posts and 3 images omitted. Click View Thread to read.
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A_Wizard !cMZsY.BCnU!!vVWR8L52 - Sat, 07 Sep 2019 02:08:31 EST RswcXQKh No.57795 Reply
>>57790
The star is pregnant. It's giving birth to planets.

zOMG it spins!

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- Thu, 21 Mar 2019 02:08:39 EST aGo2dCNY No.57582
File: 1553148519011.png -(16747B / 16.35KB, 710x420) Thumbnail displayed, click image for full size. zOMG it spins!
lets say you were somewhat nearby a rapidly rotating neutron star such that the star's diameter was a significant portion of the distance from the star. Would the star's effective center of gravity be offset towards the approaching limb because of the relative velocities and redshifts of the approaching side versus the retreating one?
If its real, how significant would the effect be? Does the effect imply that the gravity well isn't symmetrical?
10 posts and 3 images omitted. Click View Thread to read.
>>
William Hartmann - Tue, 14 May 2019 17:38:07 EST 457vC2+I No.57702 Reply
>>57701
Mhm. That's why I said
>>We model gravity based around a sphere with a radius...
>> ...but this is a simplification
>>
Urbain Le Verrier - Thu, 22 Aug 2019 01:39:29 EST aGo2dCNY No.57781 Reply
With respect to the receding limb, as the mass is accelerated away from the observer at relativistic speeds, the mass exerts less gravitational influence because of the redshift. The receding limb appears to effectively lose mass as well as getting dimmer and cooler. Could that effective loss of gravitational pull due to the acceleration be considered "anti-gravity" and if so, what potential uses could be made of a propellant based propulsion system in which the propellant reaches relativistic speeds?

Perseid meteor shower!

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- Wed, 31 Jul 2013 11:29:34 EST evrPe8Vs No.51233
File: 1375284574338.jpg -(3913B / 3.82KB, 262x192) Thumbnail displayed, click image for full size. Perseid meteor shower!
AWWWW YEAAAH.
Anyone else gonna observe this beautiful event?


Incase you haven't heard from AUG 12th to the 13th between 10:30PM and 4:30 AM, The sky's gonna light up with massive fireballs brighter than Jupiter.
44 posts and 7 images omitted. Click View Thread to read.
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Wilhelm Beer - Thu, 15 Nov 2018 04:28:30 EST N7xCPuZj No.57491 Reply
Leonid shower's s'pposed to be coming up this weekend, for those who won't have a big honkin' snowstorm gumming up the skies, at least.
>>
Walter Adams - Sat, 10 Aug 2019 21:09:46 EST 6xb1mqvl No.57776 Reply
1565485786592.jpg -(777603B / 759.38KB, 2560x1707) Thumbnail displayed, click image for full size.
Anyone going to observe this year's Perseid meteor shower?

Wishing for a cloudless sky.


50th anniversary of this mad cunt's dream coming true

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- Sat, 20 Jul 2019 11:16:36 EST /X2JLtlU No.57758
File: 1563635796555.jpg -(4889460B / 4.66MB, 2415x3000) Thumbnail displayed, click image for full size. 50th anniversary of this mad cunt's dream coming true
DICKS EVERYWHERE

Building Blocks of Life Found on Mars

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- Thu, 07 Jun 2018 19:12:35 EST eygzYfFg No.57290
File: 1528413155979.jpg -(198462B / 193.81KB, 945x945) Thumbnail displayed, click image for full size. Building Blocks of Life Found on Mars
https://news.nationalgeographic.com/2018/06/mars-organic-compounds-methane-curiosity-space-science/

>Two landmark discoveries reveal organic carbon on the red planet, shaping the future hunt for life on Mars.

I'm scared guys. This could mean life is common in the universe, which means the Great Filter is ahead of us instead of behind us.

😰😰😰😰😰

Then again, maybe this can show us the Great Filter is already behind us but when it comes to cosmic horror, I'm a half-empty kinda guy.
43 posts and 6 images omitted. Click View Thread to read.
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Vera Rubiin - Fri, 07 Jun 2019 15:04:05 EST izGRJ+VN No.57738 Reply
>>57731
Even in the case there will be evidence in the geological records.
A layer unusually high concentration of iron compounds and scattered refined metals everywhere. Evidence of mining on the layers below.
I can't come up with a complete list but I've seen somebody do it, perhaps I'll find that again.
In the case of "turn the entire crust into a molten fireball" of course life itself would vanish and the atmosphere would be heated so much that it would be blown away into space.
This would paradoxically make it easier to preserve evidence of our civilization since stuff can't oxidize.

This doesn't mean a large enough chuck couln't do it though. With enough kinetic energy the upper crust could evaporate too and be blown away into space.
It would have to be an extra-solar object though since we are pretty much certain nothing of that magnitude is around as far as we can see.
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A_Wizard !cMZsY.BCnU!!vVWR8L52 - Sun, 16 Jun 2019 15:24:42 EST 9YXtXzja No.57744 Reply
>>57290
We've pretty thoroughly contaminated it already though. Considering that even the exterior of the space stations have microbial life on them, and how impossible it is to irradicate every spore and microbe, the red planet is likely already colonised with lichens, puffballs, and extremophile bacteria. It's going to be a long hard journey to determine if the life we find on mars had existed before our modern arrival, unless we manage to find more complex life forms than bacteria and fungi.
>>
Fred Whipple - Tue, 02 Jul 2019 20:39:38 EST eygzYfFg No.57754 Reply
>>57728
Throw that meteor hard enough, and there won't be any fossils left. Everything will turn into molten rock.

Evidence of Life on Mars?

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- Mon, 25 Mar 2019 07:04:17 EST sojeXM9D No.57606
File: 1553511857280.jpg -(163544B / 159.71KB, 800x600) Thumbnail displayed, click image for full size. Evidence of Life on Mars?
http://journalofastrobiology.com/Mars5.html
39 posts and 10 images omitted. Click View Thread to read.
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Bernhard Schmidt - Tue, 18 Jun 2019 10:45:41 EST HUBAqrsF No.57749 Reply
>>57748

you are stupid. your post about the pyramids being electric power plants was full of evolution denial. i thought you were banned anyway
>>
Harlow Shapley - Fri, 21 Jun 2019 10:21:51 EST 7rYnqTgm No.57750 Reply
>>57748
Are you the original A wizard?
Because you're still dumb as fuck
>>
Fred Whipple - Tue, 02 Jul 2019 20:37:44 EST eygzYfFg No.57753 Reply
>>57749
Wow, a fucking racist neonazi the future immigrant is also an evolution denialist. Who would have thought... It's almost like retardation comes in pairs.

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