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00:00 - 17:0017:00 - 00:00

17:13
I think ultraviolet stars would be pretty
@AndyD273 ultraviolent stars?
They come to your planet and demand protection money in their racket.
17:32
@dot_Sp0T They are alien, right? Is it possible that they can see different wavelengths than us? It would be amusing if the flag looked completely white to us, but to them it's all kinds of interesting color.
Or mantis shrimp vision... They have crazy eyes
@AndyD273 16 colors or something, was it?
@Secespitus Including 6 wavelengths of UV
@AndyD273. They originate from Kepler 452b.
Yeah, they are pretty cool. It's fascinating how different "eyes" can be if you look closely at how the visual systems of different creatures work.
And that planet orbits a G-class star.
17:41
@FutureHistorian Yup. If they lived in the air where a flag makes sense, it would have UV patterns.
Well, is our sun NOT a G-class star?
Kepler-452 is a G-type main-sequence star located about 1400 light-years away from Earth in the constellation of Cygnus. It has a similar temperature to that of the Sun, but it is 20 percent brighter, 3.7 percent more massive and is 11 percent larger. It is approximately six billion years old, 1.5 billion years older than the Sun and also has a much higher metallicity. Thus, Kepler-452 can be considered a solar twin, however its age pushes it more back towards the "solar analog" criteria. == Nomenclature and history == Prior to Kepler observation, Kepler-452 had the 2MASS catalogue number 2MASS...
This is the star itself and the planet is Kepler 452b.
So, the star is VERY sun-like.
As in: it is similar to our own Sol star.
@Secespitus That article also points out that the nerves for visible light go to one part of their brain, but the ones that detect UV goes to a completely different part of the brain, so they are two independent systems.
@AndyD273? What do you think? Could a G-class star still mean they see visible light or do they see UV light instead?
Even though I think that would be more suitable towards an F-class star?
Er....
@AndyD273? Are you sure the UV light can be seen by the Visitors, even when their home planet orbits a real life sun-like star and is also a real planet?
@AndyD273 Yeah, those critters have some completely different way of "seeing" than what we are used to. For example even though they can see 16 colors whereas we can only see two they are actually worse at discriminating colors. They are doing something crazy with all that information that goes beyond what we normally think of as "seeing".
@Secespitus? What are you two referring to? My flag design proposals or something else?
is confused
17:49
@FutureHistorian Mantis shrimp vision.
@FutureHistorian Buddy, there are arrows on the left side of most chat messages. Those indicate what I am referring to. Hover over my messages and you see what I am replying to.
Oh.
@Bellerophon? Where exactly did the UV star thing spawn from earlier?
36 mins ago, by AndyD273
I think ultraviolet stars would be pretty
Oh.
I knew it.
@Bellerophon? Question: did you see the flag conversation?
Because I wonder why colour it purple.
And more importantly, how would that translate to human understanding?
@FutureHistorian No. I only just got here.
17:51
Oh.
Well, to clarify, I had two proposed designs for a flag.
For use by the GPI.
One is to include a star with light beams reaching towards six stars that surround it, which represent Earth's continents (inhabited by humans, of course), while Earth's oceans are represented by a navy blue background.
The second one is a bicolour flag, with navy blue on the left and green on the right, a large star in the centre surrounded by seven smaller stars, each representing the planets of the Solar System. Earth at the centre and the rest around the Earth.
@Bellerophon? Which is more appealing to you and do any of them break the flag design rule principles as described in "Good flag, Bad flag"?
Because I am not sure if Version 1 > Version 2 or vise versa.
Or which version has anything that breaks the rules.
These rules in particular.
Or to copy-paste them from the link:

1. Keep It Simple. The flag should be so simple that a child can draw it from memory…
2. Use Meaningful Symbolism. The flag’s images, colors, or patterns should relate to what it symbolizes…
3. Use 2 or 3 Basic Colors. Limit the number of colors on the flag to three which contrast well and come from the standard color set…
4. No Lettering or Seals. Never use writing on any kind or an organization’s seal…
5. Be Distinctive or Be Related. Avoid duplicating other flags, but use similarities to show connections…
Oh and in the second version, the navy blue also represents Earth's oceans, and life on Earth is represented by green.
@FerretCivilization? Did you decide on any colours to differentiate the shining star in the centre for version 1?
Because yellow is the shining star, while I am still undecided on the colour of the other six stars.
Should they be green, given their symbolism or should another colour be in order?
Oh.
White it is, then.
@FutureHistorian I prefer version 2.
0
A: Sandbox for Proposed Questions

DubukayWhy would hominid, intelligent creature melt when splashed with pure water? [[Sandbox note: Is the large amount of text quoted from the Wizard of Oz necessary? It was certainly the inspiration for my question, and thus provides all the details that I believe an answer would need, but there may b...

18:17
And I finished both on MS Paint.
These are the two versions I propose.
@Bellerophon? Take note: these are preliminary versions, so expect a few errors every now and then.
So, which looks better?
Errors aside?
White on yellow is really hard to make out.
@FerretCivilization? Your preference out of the two flags I just posted?
@sphennings. It was @FerretCivilization's idea.
Saw it differently in my head, yours makes me think Imperial Japan now, ha.
Still, you have a better colour for the first flag's stars, @sphennings?
@FerretCivilization. It is not final.
And it is still prone to changes.
So, you could at least try to make a better version of it.
So, @FerretCivilization? Any changes to flag 1?
Or not really?
That you recommend, I mean?
@FerretCivilization? Your recommendation to make the first flag more original? Or do you think Flag #2 is better now?
And I originally planned Flag 2 to be navy blue on the left and green on the right. A slight error, but oh well. It looks better this way.
@sphennings? Since white is hard to tell on this one, do you have a better colour recommendation?
Thinking about ideas. You changed it to 8 stars for flag two there. Going to stick with three colors like a hard rule?
18:23
Three or less, yes.
@FutureHistorian Not really
@FerretCivilization. Yes, since I realised that seven stars was probably not going to look very appealing.
At least the eight planets of the Solar System are still represented, along with our own star.
:(
Well, @sphennings. I did want the six stars in flag 1 to represent the six inhabited continents of Earth.
So, should I make them green instead?
Take out the bottom one, space out the three on each side. Or put 3 on one side four on the other, make it heavy on one side is an artistic thing that is done.
@FutureHistorian You can if you want to. Try a bunch of colors and see which ones look good to you.
18:25
@FerretCivilization. It still would look confusing to any human PoV (most of the time, I mean).
I know there may be a few exceptions, but the aesthetic would still be rather unappealing to most people.
Well, I do like the white stars, but you said it yourself: it was difficult to pinpoint with the shining beams of light.
And so I updated it.
Better? @sphennings?
@FerretCivilization? Does this update to the first flag look better to you or do you think the original version of flag 1 was better?
And I know, it still has errors concerning the position of the sun and the surrounding stars, but it is still better than nothing.
@FerretCivilization? Could you tell the stars in the original design?
Or would that be too difficult to notice for the average human being from a distance?
By the way, I fixed the original proposal's position to make it more consistent.
I could tell, but going from using a bright shade to analogous color does not really help it stand out if that is what you would want to go for.
@AndyD273 I'm gonna cook some of those bastards next week
Oh.
@FerretCivilization? What do you recommend I do, then?
Do I revamp the design or do I just make small variations to see which one is more distinct?
A start would be seeing how complementary colors look.
18:34
I still prefer the second one.
@FutureHistorian that one looks better to my aestethics
You might want to play around with the blue and yellow saturations
Oh. That makes sense.
Thank you!
So, flag #2 it is, then.
Wait.
@FerretCivilization? Which one makes more sense in terms of the symbolism to you?
Especially when we are talking about a human puppet government controlled by the Visitors/Xwlnnr.
Any of them.
Well, final decision: flag #2.
By popular choice.
:P
The symbolism makes sense, not to mention that flag 2 is also more aesthetically pleasing as well.
Without having read more than your mentions of a puppet government, can I assume the Green (and Blue) to stand for earth and the stars for the benevolent visitors?
18:42
Hmmmmmmmm. Well, I will leave it up to you to interpret it.
Oh and NOTE: The official explanation is that the green represents life on Earth (or Earth if you want), the blue represents Earth's oceans (or the benevolence of the Visitors, now that I think about it would be a better symbol), the centre star represents the Sol star and the surrounding stars represent the planets of the Solar System.
Earth may be the occupied planet, but the Visitors have plans to set up shop beyond Cislunar space, since the Moon is also controlled by the Visitors for the past 10 years since the Invasion.
So, consider this the fact that the GPI has de jure control over the Solar System and is treated more or less like an autonomous colony.
It can decide most of its own internal affairs (with a few exceptions, of course), but cannot decide its own extrasolar affairs.
And this is a model that the Visitors have tried on other species, with varying degrees of success. Some were later turned into direct rule, others were given semi-independent status as a part of the Xwlnnr civilisation (at least following the eradication of their cultural norms before they got conquered) as "honourary Xwlnnr", whereas others were exterminated with this model.
Depending on how things go, humanity either directly ruled later on, exterminated or becomes the first civilisation to successfully revolt against the Visitors (at least for a while, depending on how things go).
But again, it depends on how the situation could realistically allow any of these paths to happen.
So, the only realistic way humanity could be able to revolt and not be wiped out trying is basically with some aid from renegade Visitors within the Invasion force trying to actively aid the Resistance and its various groups (hence the radical faction of Negotiators).
@FutureHistorian i'd rather you either confirm or correct my assumptions
sighs
Well, the eight small stars represent the Solar System's planets, the big one represents the Sol star.
BUT the green represents the Earth and the blue represents the benevolence of the Xwlnnr/Visitors.
It makes more sense this way.
@dot_Sp0T? Happy that I partially confirmed your assumptions?
And corrected the ones you got wrong?
@Gryphon? Did you just show up?
If so, I will repost the two flag designs I had in mind.
@FerretCivilization? You think the green and navy blue in flag 2 should represent Earth and the "benevolence" of the Visitors instead of what I originally planned?
Oh, I forgot to mention.
Special thanks to @dot_Sp0T for giving me the idea.
:P
Doesn't matter to me.
Oh.
Well, in that case, I am still going to use @dot_Sp0T's suggestion for the green and navy blue colour symbolism.
Oh and.... @FerretCivilization? In a science related note, is there any modern or experimental material that can A. Sustain extreme temperatures generated by plasma surrounding a projectile and B. Sustain projectile rounds going at up to 5 km/s?
@FutureHistorian there's no 'happiness' in this. It's just wanting to understand something / know it correctly
18:56
So, are you at least satisfied?
yes, I got a useful answer
How do you judge information? :)
As for the materials science concern, @FerretCivilization, would Inconel be a good material to assist in modern type IV body armour systems?
It has to be able to protect from coilgun rounds and the plasma generated by the velocity/acceleration of these things in an atmosphere.
That is my requirement for GPI body armour.
And more specifically, body armour that can be used by heavy duty or special forces units, not necessarily regular infantry.
You could look at how space shuttles survive going at 7 km/s
@FerretCivilization. Well, we are talking about a coilgun firing at a human being with enough kinetic energy to one shot most conventional armour, especially considering the plasma generated by the projectile as it speeds towards its target.
So, would Inconel be a good way to enhance conventional armour systems + the experimental graphene body armour design I proposed enters service the year before the Invasion?
Is plasma not generated on reentry of orbit?
19:00
It is, but this is for infantry use.
What could be good enough for body armour to sustain projectiles going that fast and the surrounding plasma?
Especially for heavy duty infantry and special forces?
Oh and bonus points if it is lightweight in the latter's case.
So, special forces variant has an extra requirement: it must be lightweight.
Material does not care about different use, there are materials that can survive worse than your proposal that are in use now.
@FerretCivilization. How do you translate that to body armour, though?
And in a way that is light enough for the average infantryman to use, if possible?
Because Inconel can resist up to 871 degrees Celsius worth of heat.
Right?
But......how do we translate that to body armour?
And how do we make sure that the materials involve are safe for human use?
Well, turns out that I just remembered.
@Shalvenay proposed I integrate Inconel into existing body armour systems, considering most Resistance forces still use conventional weapons.
With some units and divisions (or what is left of them) from the IA alliance of national military remnants using lower quality coilguns anyway.
IA = International Army, which is composed of various surviving remnants of national armies, which in turn, represent a small number of various Resistance groups across the globe.
Officially, they are known as the Army of the Free People of Earth.
So.......
Well if you really had to go old school about it a suit of armor can do the trick. Using metal like that Inconel solely to protect against heat and the object. Still die of shock. Better going off with what was talked about all that time ago, just avoid being shot.
I know.
But still, it does help.
@FerretCivilization. It is for GPI use, not use by pre-Invasion military forces.
Then again, the GPI has to deal with forces still mostly limited to conventional weapons, so.........
Pretty much just end up with suits of armor, ha. Much like most the images and ideas of the future armor designs.
19:28
@FutureHistorian You were talking about stars on the flag being different colors. I thought it might be interesting if the stars (on the flag) were UV instead of visible light. I don't know what their eyes are like, but they might not be like ours.
That is all.
19:54
@AndyD273 hiding a second flag between the first? Sweet
20:07
@AndyD273 did you happen to notice if either of the Three Books questions made it to HNQ?
@Green Physics is on there right now. I didn't see chemistry, but maybe it was, or people are getting there through related question links.
20:28
@AndyD273 cool. Thanks for checking. I'm stuck on mobile and don't know how to see what's on HNQ.
20:43
@James Poor Tanya got ganged up on so fast, I didn't even have time to type up a welcome message before the question got closed :)
@kingledion Yeah I figured I had better close it before the peanut gallery came out and got mean.
@kingledion You wrote a good welcome message. I hope they edit the question so that it can be reopened.
Its an admittedly cool/terrifying idea.
@James I didn't even notice the other answerer was also a new user efore I callously nominated him for deletion
21:05
@kingledion Rules are rules as long as you are not a jerk when you explain it ;)
3
21:17
Back.
@AndyD273? Well, would a G-class star allow the Visitors to see UV or not really?
Because I am probably considering that, now that I think about it.
I just have no idea if it would work, given the fact that Kepler 452b orbits a G-class star.
@FutureHistorian Insects see UV, and as an example flowers use UV patches to help bees locate the nectar. Our star does emit UV. There is nothing that prevents it from happening.
Hmmmmmmmmm. Good point.
But do you remember that time when I posted about their biology?
Oh.
I will search for it in the chat logs, then.
Dec 20 '17 at 15:55, by Future Historian
They have four muscular legs, a natural exoskeleton, have two hands, but with four fingers per hand, one being the thumb and the other three...well, you can probably guess. They also have spiracles to breathe, their lungs can clear out volcanic ash from their respiratory system, with their eyes being protected against said ash as well, and how the legs function, I have no idea.
Check in here.
Here is the more detailed version, by the way.
Nov 20 '17 at 16:56, by Future Historian
The Visitors have four extremely muscular legs, a natural exoskeleton to sustain the higher gravity from Kepler 452b, they can basically see visible light, but they also have a protective layer in their eyes' internal structure to protect them from volcanic ash, since eruptions there are more frequent compared to Earth, they have an upper and lower torso (which I have not decided on what their functions are, though at one point, I thought the upper torso contained the brain of these things and possibly a few organs, while most organs needed to function are in the lower torso, though if that
Nov 20 '17 at 16:56, by Future Historian
They also happen to have some sort of natural way to filter out volcanic ash from the air in their spiracles.
Nov 20 '17 at 16:57, by Future Historian
Not to mention that the exoskeleton is probably weaker for these Visitors, given the fact that most of them on board the spacecraft, which humans may as well call the Leviathan, while the officers like one of the Visitor PoV characters were in cryonics when in an interstellar journey.
@AndyD273? Do you understand now?
K. I guess it only really matters if you think them being able to see other wavelengths might be useful. You don't have to do anything with it.
21:23
Hmmmmmmmm. Well, what use would UV light have for these bastards anyway?
As in: what use does it have for insects and what use could it have for them?
¯\_(ツ)_/¯
Wait.
Digging into Earth animal biology use.
So, it is like extra radar, right?
Because I am not sure if the UV light will make it easier for them to spot human targets.
Would it?
@FerretCivilization? How useful is UV light in tracking human targets anyway?
And what uses could it also have for Kardashev Type II civilisation like the Visitors from a biological perspective?
How useful is using ultraviolet rays to track humans, terrible, can't be done like that apparently.
:(
Well, what can UV light be useful for, then?
And why is UV light not useful for tracking down us, pesky humans anyway?
@AndyD273? Can you link me again to that one article you mentioned about an animal that has 16 colour receptors?
Humans only give off visible and infrared. Probably plenty of articles on why insects use ultraviolet and its relation to plant life.
21:32
You can use it to track rabbits by their urine trails I think.
Hmmmmmmmmmm.
What about humans, though?
Can we get tracked by those things based on our [censored] and our [censored]?
@FerretCivilization? I have an idea. Could the Visitor knowledge on astronomy be more advanced thanks to UV light?
Or how they perceive UV light?
Well, think about it. Some insects use the stars to guide themselves on Earth.
Why not have the Visitors do the same for Kepler 452b?
It makes their biology EVEN WEIRDER than what I had originally planned.
Insects are also not really an advanced sapient species with the compounding problems that come with it.
21:39
Oh.
Well, still, UV light = bad idea for a technological K2 civilisation, right?
Not saying that either.
Well, just what are the pros and cons of an intelligent civilisation seeing through UV light?
Especially one capable of interstellar travel and conquering other civilisations?
Pretty much, it would just be something that is.
I just want to know how their cultural, technological and societal development is affected by their perception of UV light.
Could literally say anything and not everyone would be happy with it. Your story that your writing.
21:43
Hmmmmmmm. True.
@AndyD273? I have an idea. Visitor eyeballs have 8 receptors, six for visible light, two for ultraviolet light.
How is this going to affect them culturally and technologically in the road to entering the K2 stage?
Humans have two receptors, right?
Or is that three?
They would find it easier to distinguish male and female blue tits.
Cool question
11
Q: How could a natural road form across a sea?

EraBACKGROUND I'd like my earth-like world to have a naturally formed narrow strip of land that bridges a major sea. Now, before anyone rushes off to comment about island chains and land bridges, I'll add that I'm looking for unusually long, thin, and well, road-like formation. Here are the gui...

which begs another question. In a geological timespan is it possible/likely we will see the mid-atlantic ridge form a new landmass?
21:59
@FutureHistorian Three types.
22:15
So, what if the Visitors had eight?
Two of them for UV light perception?
Depends what the eight do.
Which wavelengths they can detect.
Well, they can perceive green, blue, red, yellow, orange and purple, with two UV light receptors.
That's five colours. Do the other three just slot in-between?
@FutureHistorian Remember that humans have only 3 light sensing cells and can see all of green, blue, red, yellow, orange and purple.
True.
So, how do we add in UV light receptors anyway?
22:26
@FutureHistorian You say "my aliens can see in ultraviolet"
If so I would assume it would make them better at picking out small differences in shade but they would need a lot more brain dedicated to vision to handle the extra input. Humans already have to discard some information to reduce white noise. With UV receptors these filters would have to be much stronger to prevent effective blindness. Most ultraviolet seeing animals on earth can only pick up a tiny fraction of the available ultraviolet.
They also wouldn't understand the colour wheel. To them the joining of purple to red would seem bizarre as they can pick up the differences far better than us.
22:44
We're going to get a lot of comments on this one.
23:11
hey there @Green
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