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420chan is Getting Overhauled - Changelog/Bug Report/Request Thread (Updated April 10)
Discuss... Ignore Report View Thread Reply
The Fool !oj3475yHBQ - Wed, 08 Jul 2015 20:14:54 EST ID:NjsLJs2P No.55484
File: 1436400894839.jpg -(114479B / 111.80KB, 854x687) Thumbnail displayed, click image for full size. 114479
If time is equal to the distance that light travels, yet slows as one approaches the speed of light, does this not indicate that the speed of light is actually timeless?

If the speed of light is timeless, yet time is equal to the distance that light travels, does it not mean that the observer is responsible for the conception of distance in relation to light?

If time is equal to the distance that light travels, yet the speed of light is timeless, than space/time is actually light, as a measurement of time is actually a measurement of light.

If a measurement of time is actually a measurement of light, but the speed of light is timeless, does this not mean that to measure light is to create time?
20 posts and 2 images omitted. Click View Thread to read.
>>
Karl Jansky - Tue, 11 Aug 2015 09:12:09 EST ID:YHjXylC8 No.55591 Ignore Report Reply
11.jpg -(80085B / 78.21KB, 666x69) Thumbnail displayed, click image for full size.
>>55589
>Theoretically, if one could obtain a unicorn that could wish you to the nearest star system...
Even your imaginary unicorn would have difficulty, the top equation is time dilation at constant acceleration.
c= the speed of light, v=velocity. If v<c, you end up with an imaginary number.
>>
Bernard Burke - Tue, 11 Aug 2015 22:36:58 EST ID:415JX8nG No.55592 Ignore Report Reply
>>55484
It's relative.
If you yourself are traveling the speed of light, the closer you get to c, the slower time gets for you only, the rest of the universe starts to fast forward.

I guess a photon itself would be a timeless object, it has to interact with something to change.. but nothing quantum mechanical exists singularly, it exists in the context of the nature around it.
I guess in photon time, the universe is only a tiny fraction of a second old, if that is even an accurate description.
But the rest of the universe still matters.

The way I think of quantum mechanical objects is that they aren't like a ball or anything concrete like that.
A beam of electromagnetic energy is like a river.
You can run up to it with a glass, take a scoop out, and proclaim you have an electron.
You are measuring the location of that electron, as it is in your hand, but it's not going anywhere. You could then spill that electron out of the glass, back into the river. Although you don't know where that electron is anymore, you could figure out what it's speed is and where it is likely going based on the contours of the river, or getting out of the metaphor, the physical nature of what is going on around it.

Photons are only timeless to themselves, the rest of the universe collapses any notion of them existing in a timeless place.
If light didn't exist in time, I imagine, if the universe was able to form in the first place, it would just look like a big clump of white noise
>>
Fritz Zwicky - Thu, 13 Aug 2015 19:25:39 EST ID:BF8zYeiD No.55595 Ignore Report Reply
>>55592
It sounds like you have a pretty decent understanding of what you're talking about, and you're good at communicating those ideas understandably.


The Universe and Your Significance Ignore Report View Thread Reply
Edward Pickering - Wed, 21 Jan 2015 17:42:34 EST ID:7UdqYDqD No.54926
File: 1421880154554.jpg -(416926B / 407.15KB, 2560x1440) Thumbnail displayed, click image for full size. 416926
I've noticed this a lot when people take about outer space and the universe they always like to mention how "insignificant" it makes them feel.
"Yeah man space, wow, you know it really puts my life into perspective; how insignificant we are in the grander scheme of things."

This is my opinion but I think that's such a belittling thing to say its also unsettling how common it is a thing to say when talking about the universe.

Granted the universe is huge, and in comparison us tiny humans are very very tiny. Doesn't make us insignificant though, or our lives meaningless.
You are the most significant person in your life, because without you, your life wouldn't exist. Who cares if you don't become famous or invent something that changes the world, you are the universe experiencing itself through your life, defining it with every thought, action, emotion and experience you have.

Sure you are a tiny droplet in an ocean of water, however what is an ocean but a multitude of droplets?
43 posts and 5 images omitted. Click View Thread to read.
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Gerard Kuiper - Tue, 10 Feb 2015 17:00:43 EST ID:KSSVR3HT No.55021 Ignore Report Reply
We can compare for significance if we want. Compared to a rock im significant, I think. But we dont know what is actually significant, because we dont know what the fuck is going on.
I certainly dont see any reason to believe that all of this is good or bad, significant or not, either way.
>>
Terror Incognito - Fri, 20 Feb 2015 15:22:25 EST ID:7DU4fAaH No.55056 Ignore Report Reply
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>>54926

The fact that we're alive right now, able to experience and observe all that is in the universe makes us the most significant part of it, regardless of how small we appear to be on a specific scale of perception.
>>
William de Sitter - Mon, 03 Aug 2015 14:44:27 EST ID:AIswEXs0 No.55581 Ignore Report Reply
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>>55016

Nice linear perception of time, human.


Does anybody else agree with me when I say that a black hole is basically a glitch in reality? Ignore Report View Thread Reply
Georges-Henri Lemaitre - Sun, 18 Jan 2015 14:01:11 EST ID:Kc+YGl6y No.54910
File: 1421607671240.jpg -(104918B / 102.46KB, 700x400) Thumbnail displayed, click image for full size. 104918
It just shouldn't happen.
24 posts and 4 images omitted. Click View Thread to read.
>>
Alan Guth - Wed, 29 Jul 2015 22:05:59 EST ID:v2I6+0VG No.55565 Ignore Report Reply
>>55047
This is the best quality post I've read in a long time on this board. I've never heard of fuzzballs before. But wouldn't the black holes eventually evaporate away as Hawking radiation?
>>
Irwin Shapiro - Wed, 29 Jul 2015 23:18:59 EST ID:415JX8nG No.55566 Ignore Report Reply
>>55564
Hey I'm not autistic dick face.
I wouldn't use the phrase "glitch in reality", I don't know why I said that, doesn't seem like it lines up with my line of usual thought or philosophy in general. I was probably drunk
>>
George Gamow - Thu, 30 Jul 2015 21:58:26 EST ID:sFc2Gs9d No.55569 Ignore Report Reply
>>55564

I disagree, what he said makes perfect sense. Black holes are impressive by their sheer magnitude, but are simple objects and--given what we know about mass and gravity--are pretty much inevitable. Flowers, on the other hand, are fucking complicated on many levels and its a wonder such a thing ever came to be at all.

Still though, I can wrap my brain around a flower, but I'm pretty sure trying to truly comprehend the sheer pan-celestial magnitudes of mass, gravity and density that is a black hole would be a veritable Lovecraftian experience.


Time dilation and the Alcubierre drive Ignore Report View Thread Reply
Johann Bode - Thu, 30 Jul 2015 12:30:55 EST ID:/fL15l2I No.55567
File: 1438273855753.jpg -(16840B / 16.45KB, 200x303) Thumbnail displayed, click image for full size. 16840
if one were traveling above c in a ship using an Alcubierre drive, would they experience time dilation?
as i understand it, the object affected by the drive isn't moving but rather space is simply expanding and contracting around it. the object has no velocity and isn't moving in the normal sense.
>>
Karl Swarzchild - Thu, 30 Jul 2015 13:05:05 EST ID:lHGvTKQL No.55568 Ignore Report Reply
>>55567
No, because the entire ship is contained within it's own stationary spacetime bubble.

The negative time generated by dilation will only speed up the journey relatively to the speed of light.


Stephen Hawking - Aliens Ignore Report View Thread Reply
Georges-Henri Lemaitre - Wed, 22 Jul 2015 09:52:58 EST ID:eZ452btZ No.55537
File: 1437573178193.gif -(145178B / 141.78KB, 250x250) Thumbnail displayed, click image for full size. 145178
Discuss

http://m.space.com/29999-stephen-hawking-intelligent-alien-life-danger.html

http://news.bbc.co.uk/2/hi/8642558.stm
7 posts and 4 images omitted. Click View Thread to read.
>>
Alan Guth - Wed, 22 Jul 2015 16:29:07 EST ID:YHjXylC8 No.55545 Ignore Report Reply
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>>55543
>the stars we observe every night are already dead.
Unless you're using a telescope to look at galaxies very far away, they're all within a hundred thousand light years and probably aren't dead.

>>55544
Pic related is a much better explanation for UFOs.
>>
Johann Bode - Wed, 22 Jul 2015 17:08:26 EST ID:415JX8nG No.55547 Ignore Report Reply
>>55545
Hahaha that's awesome.
It would be an interesting statistic to see how the numbers change from populations with lots of alien cultural references to others were it's less prevalent, and how it changes with the scientific education levels of the respective populations effect the out come as well.

I've seen one ufo, it was probably a meteor, about twice the size of the full moon, comparable color and brightness, but it didn't have a tail and it flew right over me. I've seen large (good fraction of the full moon size) meteors before, and the big ones still had tails, but maybe it was a simple perspective issue, as the ones I saw with tails were all on the horizon. It still scared me though and I'm a super tough guy whose not afraid of anything
>>
Intelligent life? Here? You must be kidding !8NBuQ4l6uQ - Fri, 24 Jul 2015 22:43:50 EST ID:oIw5gxix No.55559 Ignore Report Reply
>>55542


MFW Ignore Report View Thread Reply
Joseph von Fraunhofer - Thu, 16 Jul 2015 05:52:22 EST ID:LD9WXxz6 No.55518
File: 1437040342119.jpg -(144755B / 141.36KB, 459x403) Thumbnail displayed, click image for full size. 144755
I realize we will never set it for ourselves.
8 posts and 1 images omitted. Click View Thread to read.
>>
Alan Guth - Wed, 22 Jul 2015 08:35:39 EST ID:YHjXylC8 No.55536 Ignore Report Reply
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>>55534
Yeah, but we're really far away too. If we were closer (and blocked out light from other sources, we see dim objects near very bright objects by covering up the bright object), some structures would be brighter, to an extent.
But nebulae are so big and diffuse they've be invisible up close. The face of OP's unicorn is about a light year long.

The IAU currently does not recognize space-unicorn as an alternative to light-year.
>>
William Huggins - Wed, 22 Jul 2015 16:49:15 EST ID:rIYomINL No.55546 Ignore Report Reply
>>55534
That doesn't mean they aren't real or aren't visible light.
>>
Irwin Shapiro - Thu, 23 Jul 2015 00:48:39 EST ID:OXINl/7g No.55549 Ignore Report Reply
>>55546
They're definitely *real*, but they're not as visible as the photos make them appear. Most of those awesome nebula photos are long exposures, yes, but they're also composites of infrared, x-ray, and visible light, with some coloration and hue/contrast added to make them "pop." It's a real thing in the photo, but it's not the "natural" way it looks.


the sun has fallen down Ignore Report View Thread Reply
Kiyotsugu Hirayama - Tue, 16 Jun 2015 22:13:13 EST ID:fhuRENSe No.55412
File: 1434507193485.png -(22297B / 21.77KB, 411x411) Thumbnail displayed, click image for full size. 22297
what would happen to the earth and the rest of the pack in the system if suddenly the sun dissapeared? how quickly would the planet freeze?
6 posts and 2 images omitted. Click View Thread to read.
>>
Urbain Le Verrier - Mon, 22 Jun 2015 18:01:16 EST ID:4qq7TOTM No.55437 Ignore Report Reply
>>55429
thanks to this video I found this short speculative fiction gem:
http://www.baenebooks.com/chapters/0743498747/0743498747___6.htm
>>
Thomas Gold - Wed, 15 Jul 2015 23:13:49 EST ID:415JX8nG No.55517 Ignore Report Reply
>>55416
If my imagination is allowed to run wild, I would put the earth in orbit around Jupiter, close enough to cause a decent amount of geologic activity and keep some sort of an atmosphere, even if it's toxic and much less dense than ours is today.

The center piece of civilization would probably be fusion/fission nuclear reactors, we could mine hydrogen from Jupiter. But we would need manufacturing hubs, mines, and genetically modified plants in vertical farms. I think it might be best to put residential areas around hydrothermal vents. But the other stuff will probably need to be above ground
>>
Johan Galle - Sun, 19 Jul 2015 19:34:02 EST ID:BF8zYeiD No.55530 Ignore Report Reply
>>55437
I love that story. So cool.


Gentlemen... Ignore Report View Thread Reply
John Bahcall - Tue, 14 Jul 2015 22:24:03 EST ID:lHGvTKQL No.55511
File: 1436927043339.jpg -(10788B / 10.54KB, 512x480) Thumbnail displayed, click image for full size. 10788
BEHOLD!

The mission was a success.

We have a picture of Pluto now.
5 posts and 2 images omitted. Click View Thread to read.
>>
Pierre-Simon Laplace - Fri, 17 Jul 2015 14:53:48 EST ID:P+fSJ1RL No.55520 Ignore Report Reply
>>55514
I love that they call it Mordor. It so perfectly marks the time table of our exploration beyond our world. All planets in our system maintain old Latin names of old gods and deities. Now one holds a name from almost 100 years ago and has a region photographed and named Mordor.

Wonder if we find any other sneaky moons around the Jovians what will the names be?
>>
Pierre-Simon Laplace - Fri, 17 Jul 2015 14:55:42 EST ID:P+fSJ1RL No.55521 Ignore Report Reply
>>55520
derp charon has mordor and was discovered only just back in 78. Didn't mordor exist in tolkiens books by then? What ever still impressed by the difference in names in system based on time discovered. nb
>>
Alan Guth - Fri, 17 Jul 2015 20:19:27 EST ID:okoywjgZ No.55524 Ignore Report Reply
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>>55520
I hope it becomes official some day, it also fits the underworld theme the IAU wants

Here's a map of Pluto with names suggested by NASA


Star pussy Ignore Report View Thread Reply
Henry Draper - Tue, 14 Jul 2015 12:22:51 EST ID:euFuFwSC No.55507
File: 1436890971618.jpg -(83549B / 81.59KB, 451x379) Thumbnail displayed, click image for full size. 83549
Astrolabia


Venus and Jupiter June 2015 Ignore Report View Thread Reply
Rudolph Minkowski - Sun, 21 Jun 2015 23:01:02 EST ID:Mx4j4tsI No.55436
File: 1434942062578.jpg -(34158B / 33.36KB, 560x475) Thumbnail displayed, click image for full size. 34158
The best view in northern hemisphere for June, and not ONE thread about it?
Where are all my Venus and Jupiter observers at?
15 posts and 7 images omitted. Click View Thread to read.
>>
Chushiro Hayashi - Sun, 28 Jun 2015 17:16:18 EST ID:jOF47H5F No.55465 Ignore Report Reply
>>55464
>He stole his data from Tycho.

In the end that's ultimately what he had to do, but you're conveniently disregarding everything he went through up until that point. Maybe you should read up about the man some time.
>>
Karl Jansky - Fri, 03 Jul 2015 18:44:29 EST ID:0TqljQT/ No.55467 Ignore Report Reply
>>55465
No. He didn't have to do anything, he chose to. Just as you chose to neglect the fact his data was stolen and accuse me of ignoring history. Pot? Black?
Personal difficulty does not change the facts, Kepler was brilliant but the data was stolen.

And no the sentence "the universe is a high-dimensional object constantly rotating within itself" isn't going to cause anyone to stumble onto some new cosmology, it's so vague it doesn't many anything, it's technobabble.
>>
Tadashi Nakajima - Thu, 06 Apr 2017 14:34:06 EST ID:S0k+HZwt No.56907 Ignore Report Reply
>>55467

Yes, some things you morally HAVE to do(would you watch your significant other (or self) be tortured over and over again, while unbound and free with a cell phone? No you'd be compelled to do something different, or your guilty of doing nothing when a huge injustice is being done(injustice is an open ended term I know) and you can do something about it... Or guilty of being a sadist/masochist.


The shape of Galaxies. Ignore Report View Thread Reply
Nicolaus Copernicus - Sun, 14 Jun 2015 00:27:54 EST ID:kfQx+w9j No.55402
File: 1434256074283.jpg -(638900B / 623.93KB, 1920x1200) Thumbnail displayed, click image for full size. 638900
So if I'm correct, every galaxy has a supermassive black hole at the center of it. Every galaxy was once an active Quasar and then cooled after the black hole at the center of the galaxy spewed and consumed all the matter around it. So if a black hole has angular momentum at the center of a galaxy, does that mean the galaxy would result in a spiral shape? And would non rotating black holes instead form more of an irregular galaxy shape? I'm thinking in terms of galaxy evolution and the various shapes different galaxies take. Cheers.
11 posts and 4 images omitted. Click View Thread to read.
>>
Roger Penrose - Sun, 28 Jun 2015 09:38:23 EST ID:IQY0YtFB No.55461 Ignore Report Reply
Eventually the spiral forms take shape of malicious code and Avira antivirus will detect them as false positives, You should try a Linux Distro, OP.
Just sayin'
>>
Henry Draper - Sun, 28 Jun 2015 13:23:21 EST ID:XJHlYsmW No.55462 Ignore Report Reply
>>55460

Space is big and also hard.
>>
Kiyotsugu Hirayama - Sun, 28 Jun 2015 14:38:04 EST ID:L3OB90Tk No.55463 Ignore Report Reply
>>55441
>>55446

You're both sort of right. Before major mergers when galaxies shave a lot of gas and are actively forming stars most of the big ones are spirals, some of the small ones can be irregular bit that's a different story. Left to it's on devices a spiral will not evolve or normalise into an elliptical.

A major merger is when two roughly equally sized galaxies collide and merger. It is believed elliptical form major mergers of spirals. As part of this merger the gas is usually stripped out and star formation shuts down with nothing to make stars out of (After the merger is finished). When it reaches a steady state it will be an elliptical, it will not evolve back into a spiral. The reason ellipticals have older stars is because they don't form any new ones, the oldest stars in each galaxy will not be significantly older or younger than the other.

>>55431

Frame dragging is a tiny effect, it doesn't affect things like that.


Aw Shit Ignore Report View Thread Reply
Giovanni Cassini - Wed, 17 Jun 2015 17:51:11 EST ID:KlwZpL5U No.55418
File: 1434577871926.jpg -(325142B / 317.52KB, 650x488) Thumbnail displayed, click image for full size. 325142
I just started work at MIT, working on the Transiting Exoplanet Survey Satellite [TESS] program. Ask me stuff about space & shit, I can answer it for you.
7 posts and 2 images omitted. Click View Thread to read.
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Fred Hoyle - Fri, 19 Jun 2015 06:44:57 EST ID:YHjXylC8 No.55426 Ignore Report Reply
1434710697724.png -(795268B / 776.63KB, 1259x696) Thumbnail displayed, click image for full size.
Do you feel the current method of detecting planets in the habitable zone is exhaustive enough to extrapolate an upper bound on how frequently rocky planets where water exists in all three phases occur, at least for certain classes of stars?

Also, did you get a cool mission patch?
>>
William Herschel - Fri, 19 Jun 2015 22:26:23 EST ID:KlwZpL5U No.55427 Ignore Report Reply
>>55426
Good question!
This mission is designed to find candidate star systems for follow up observation by more sophisticated telescopes, like the JWST or GMT. What this means is that our mission is to simply characterize and catalogue as many candidate systems as possible. After speaking with a professor on the program yesterday, he explained that simulations of one year of operation showed a potential catologue of up to 75 earth mass exoplanets, up to 150 between earth and Neptune mass, and more in the Jupiter size class.
However, These candidates are going to be in orbit around the best candidate stars for water to exist, namely red dwarfs and smaller main sequence stars. It is hard to say which ones could have all three phases. At least what TESS can tell you is the mass, period, and a brief sniff of the atmosphere (if you subtract the star spectra before a transit from the spectra during a transit, you get a vague idea of the atmosphere composition).

Alas I have not gotten my patch yet. I'm hoping to score a TESS patch and a CHANDRA patch, cause that's' another one of our missions.
>>
William Herschel - Fri, 19 Jun 2015 22:27:25 EST ID:KlwZpL5U No.55428 Ignore Report Reply
I'm also on my phone, so, sorry for the wall of text with no format.


HYPOTHETICALLY SPEAKING Ignore Report View Thread Reply
Caroline Herschel - Sun, 01 Jun 2014 00:36:25 EST ID:VdooM9pB No.53894
File: 1401597385591.jpg -(271052B / 264.70KB, 746x746) Thumbnail displayed, click image for full size. 271052
What do you think would happen if highly intelligent, stronger, more powerful aliens made contact with earth right now and told us the meaning of life.
27 posts and 3 images omitted. Click View Thread to read.
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Friedrich Bessel - Wed, 03 Jun 2015 01:40:52 EST ID:/Tm3UOch No.55381 Ignore Report Reply
>>53894
We'd reject that, obviously.
Our meanings are superior anyway.
>>
Russel Hulse - Thu, 04 Jun 2015 21:57:03 EST ID:415JX8nG No.55382 Ignore Report Reply
The meaning of life is subjective.
The meaning of our lives to aliens could be rather demeaning to our sense of ourselves and I doubt aliens are going to tell us we are to rule the universe or whatever.
I think life has a general role to play in the future of the universe, as it is a natural byproduct of the Big Bang, but I don't think that would even manifest itself through mere biologic organisms. I think a mastery of quantum technologies will have a dramatic effect on the biology/physiology/psychology of humans.
We're still apes, smart apes for sure, I might even argue that we're great apes, but still just apes
>>
Joseph Taylor Jr. - Sat, 06 Jun 2015 22:21:11 EST ID:9Jg5Dok5 No.55389 Ignore Report Reply
>>55382
Who knows? Lulu Amelu have been created by gods from apes to be their slaves, but they rebelled and evolved

and we may evolve further. or embrace our half-ape nature and be forever as we are now. that is meaning, too.


BOINC Report View Thread Reply
INTERPOL !3mB4iDBpWw - Sun, 24 May 2015 00:38:44 EST ID:kiOQuM9F No.55362
File: 1432442324237.jpg -(460601B / 449.81KB, 1170x778) Thumbnail displayed, click image for full size. 460601
Hey all

I just got a new video card and decided to fire up the old BOINC to see how it stacks up to the old ones I had. At the zenith of my BOINC days I had x2 5970's doing 4 workunits, one for each GPU, every 1:30-2:00 minutes each. This 7990 that I just got is doing 2 workunits in 12 seconds for the easy ones and 30 seconds for the longer ones, but they have them mixed in with each other. So in the time it took to draw a 3d map of the cosmos in one unit for my old setup if I only counted one card, my new one is doing the work of just over 4 of my old cards in the same amount of time.

Is there still any interest in this now that Bitcoin shit the bed finally? We can start using our unused CPU and GPU cycles again for science if you want to join the team, we have teams for most of the major projects, Rosetta, Milkyway, Primegrid, etc.
>>
George Gamow - Tue, 26 May 2015 09:03:53 EST ID:0IM2ydyR No.55370 Ignore Report Reply
>>55362
I should stop being lazy and get into this now that you've reminded me.
>>
INTERPOL !3mB4iDBpWw - Wed, 27 May 2015 23:09:31 EST ID:kiOQuM9F No.55373 Report Reply
>>55370

2 days plugging away at it on and off (not even really trying), I'm already in the top 300 out of nearly 3 and a half million people in recent credit.
>>
Edwin Salpeter - Mon, 01 Jun 2015 21:31:35 EST ID:lHGvTKQL No.55378 Ignore Report Reply
Cool beans, interpol.

I like to say "boinc" and I like what they're trying to do but my graphics cards sucks balls, so keep up the good work!


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