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(io9)   What would a habitable planet twice the size of Earth be like? It might surprise you   (io9.com) divider line 74
    More: Interesting, Earth, planetary habitability, surface gravity, escape velocity, radius, hydrogen gas, albedo, lithosphere  
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10585 clicks; posted to Geek » on 04 Dec 2013 at 5:36 PM (46 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-12-04 03:56:45 PM  
I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.
 
2013-12-04 03:57:47 PM  
What would wild ass speculation be like? Irrelevant until we have the technology to travel interstellar distances.
 
2013-12-04 04:12:37 PM  
TL:DR
 
2013-12-04 04:17:04 PM  
I'm thinking it would be significantly roomier.
 
2013-12-04 04:52:44 PM  
The song "It's A Small World" would be inaccurate, as well as cloying and omnipresent
 
2013-12-04 05:03:16 PM  

Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.


Yep.
 
2013-12-04 05:42:08 PM  
No mention of sexy green slut aliens
 
2013-12-04 05:42:37 PM  

Ambivalence: Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.

Yep.


Same. Usually I can tough it out if I feel I might learn something new about science, but this article just activated my TL;DR sense almost immediately.
 
2013-12-04 05:46:14 PM  
Meh, I already knew all of this. I know everything, it's why I hang out on Fark...

/Seriously though, this is some cool shiat I've wondered about, and this article is pretty cool. Above my pay grade, but still cool.
 
2013-12-04 05:46:50 PM  
Okay, guys, for those of you who didn't read the whole article:

Oceans would probably be red due to increased algae (more water means more moderated temps and, therefore, more algae, especially of the red variety) and the sky would, therefore, likely be pink in the evening/morning and purple during the day.  Happy now?
 
2013-12-04 05:51:22 PM  
That was fun.  30 paragraphs of "If we assume that x is between .8 and 1.2 then y will be twice as high as on our current earth, assuming that a is two times z and d is at least between e and f".
 
2013-12-04 05:52:26 PM  
Heavy man.
 
2013-12-04 05:59:23 PM  
unfortunately the badass blood oceans are cancelled out by the rather less-than-badass pink sky.
 
2013-12-04 06:01:03 PM  
I came expecting Kerbal Space Program screenshots; leaving disappointed.
 
2013-12-04 06:01:07 PM  
If we assume it's like Candyland, all the life will be made of delicious candy.
If we assume it's like Ooo, Finn and Jake will welcome our astronauts.
If we assume it's like Deadwood, Al Swearinger will sell us alien whores.

It's the exact wrong kind of article to promote science. It reads like homework.
 
2013-12-04 06:10:27 PM  
Well, it may seem unlikely we'll ever discover an inhabitable world twice the size of Earth, but when we do, let's hope we took the "High-G Environment" background.  It pays to get 100% production rate right off , although the enemy will usually just carpet bomb the planet during an attack, making the extra hit for ground troops somewhat less useful.
 
2013-12-04 06:13:29 PM  
Walk outside, look at horizon.
Find scale model of earth.
Multiply by two.
Perspective complete.
 
2013-12-04 06:18:45 PM  

Arctic Phoenix: Okay, guys, for those of you who didn't read the whole article:

Oceans would probably be red due to increased algae (more water means more moderated temps and, therefore, more algae, especially of the red variety) and the sky would, therefore, likely be pink in the evening/morning and purple during the day.  Happy now?


Wow. Way to come up with a speculation that wasn't anywhere in the article.

/understood most of it, wikipedia'd what I couldn't (still relatively easy-- Ice VII/VI was the hardest concept--warm ice?)
//you guys don't like sci-fi that goes in depth, huh?
 
2013-12-04 06:20:52 PM  
To quote from the article:
Both Double-Earths are waterworlds, but one is deep. Neither has any land.

That's great.  Did io9 even see the movie Waterworld?  Both worlds would be gigantic flops and have Kevin Costner as one of the few friendly people on the planet.  No thank you...
 
2013-12-04 06:22:52 PM  
If this theoretical world were made of barbeque spare ribs, would you eat it? I know I sure would
 
2013-12-04 06:22:55 PM  

Peki: Arctic Phoenix: Okay, guys, for those of you who didn't read the whole article:

Oceans would probably be red due to increased algae (more water means more moderated temps and, therefore, more algae, especially of the red variety) and the sky would, therefore, likely be pink in the evening/morning and purple during the day.  Happy now?

Wow. Way to come up with a speculation that wasn't anywhere in the article.

/understood most of it, wikipedia'd what I couldn't (still relatively easy-- Ice VII/VI was the hardest concept--warm ice?)
//you guys don't like sci-fi that goes in depth, huh?


WHY did you have to go and tell everyone?!
 
2013-12-04 06:24:34 PM  

Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.


Tom_Slick: TL:DR


Okay, good. Now I don't feel so bad for giving up two paragraphs in.
 
2013-12-04 06:26:32 PM  
Gibberish.
 
2013-12-04 06:36:03 PM  

Arctic Phoenix: WHY did you have to go and tell everyone?!


maximum trolling.jpg

/got you
 
2013-12-04 06:40:48 PM  
A long time ago on Slashdot I proposed a kind of inside-out Dyson sphere (people on the outside, like a planet, not on the inside facing a star)  that was about a light-year in diameter and massed about double the Milky Way Galaxy (iirc, it's been years since I scribbled on that napkin). At the surface, there would be 1 gravity, and it would blueshift the background radiation so your 2.7K temp would actually be in the range of liquid water.

Of course, you'd have to have a tiny shell of buckytubes or graphene sheets or something.

No clue what kind of atmosphere, clouds, or storms would result, or whether it would be safe to set it spinning, but I wanted something that dwarfed Ringworld. Not sure if this would be classed as a type III civilization, though.
 
2013-12-04 06:54:59 PM  

doglover: If we assume it's like Candyland, all the life will be made of delicious candy.
If we assume it's like Ooo, Finn and Jake will welcome our astronauts.
If we assume it's like Deadwood, Al Swearinger will sell us alien whores.

It's the exact wrong kind of article to promote science. It reads like homework.


It's io9.  For all we know it IS some kid's homework that the writer stole and didn't feel bothered to credit.
 
2013-12-04 07:03:03 PM  

max_pooper: Heavy man.


coedmagazine.files.wordpress.com
 
2013-12-04 07:13:57 PM  

Peki: //you guys don't like sci-fi that goes in depth, huh?


I like sci-fi writers who do their homework. What I don't like is sci-fi writers who have to go and tell me they did their homework by including a bunch of equations and monotonous technical details that don't advance the story but allow them to stroke their little nerd-boners about how they understand the minutiae of, say, Rayleigh scattering.

If the planet's sky should be green, say it's green. But don't bore me with a bunch of stuff about wavelengths and isotope ratios.
 
2013-12-04 07:18:59 PM  
Krypton. Duh.
 
2013-12-04 07:20:19 PM  

Cthulhu_is_my_homeboy: Peki: //you guys don't like sci-fi that goes in depth, huh?

I like sci-fi writers who do their homework. What I don't like is sci-fi writers who have to go and tell me they did their homework by including a bunch of equations and monotonous technical details that don't advance the story but allow them to stroke their little nerd-boners about how they understand the minutiae of, say, Rayleigh scattering.

If the planet's sky should be green, say it's green. But don't bore me with a bunch of stuff about wavelengths and isotope ratios.


Okay. . . I guess that's fair.

I can't read Tolkien because he likes to describe to the inch the distance between the bark lines on the trees of whatever the hell. Much easier for me to go "Oh, if the atoms in the atmosphere absorb mostly blue light, then the atmosphere ought to be red."

/diff't strokes
//funny part is I'm an English Lit graduate too
 
2013-12-04 07:44:41 PM  

Peki: Cthulhu_is_my_homeboy: Peki: //you guys don't like sci-fi that goes in depth, huh?

I like sci-fi writers who do their homework. What I don't like is sci-fi writers who have to go and tell me they did their homework by including a bunch of equations and monotonous technical details that don't advance the story but allow them to stroke their little nerd-boners about how they understand the minutiae of, say, Rayleigh scattering.

If the planet's sky should be green, say it's green. But don't bore me with a bunch of stuff about wavelengths and isotope ratios.

Okay. . . I guess that's fair.

I can't read Tolkien because he likes to describe to the inch the distance between the bark lines on the trees of whatever the hell. Much easier for me to go "Oh, if the atoms in the atmosphere absorb mostly blue light, then the atmosphere ought to be red."

/diff't strokes
//funny part is I'm an English Lit graduate too


I'm an English major also!  But I like science and math as well.
 
2013-12-04 07:51:04 PM  

machoprogrammer: If this theoretical world were made of barbeque spare ribs, would you eat it? I know I sure would


i1.ytimg.com
 
2013-12-04 07:57:02 PM  
Meh. I was hoping for a Ringworld.
 
2013-12-04 08:01:46 PM  

StrangeQ: doglover: If we assume it's like Candyland, all the life will be made of delicious candy.
If we assume it's like Ooo, Finn and Jake will welcome our astronauts.
If we assume it's like Deadwood, Al Swearinger will sell us alien whores.

It's the exact wrong kind of article to promote science. It reads like homework.

It's io9.  For all we know it IS some kid's homework that the writer stole and didn't feel bothered to credit.


Ha!
 
2013-12-04 08:08:16 PM  

zimbach: I came expecting Kerbal Space Program screenshots; leaving disappointed.


i thought KSP was about blowing up little green retards in stupid big rockets!
 
2013-12-04 08:27:27 PM  

The Goddamn Batman: Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.

Tom_Slick: TL:DR

Okay, good. Now I don't feel so bad for giving up two paragraphs in.


Me too.
 
2013-12-04 08:38:46 PM  
We would play basketball on 5 foot hoops?
 
2013-12-04 08:40:33 PM  
This was hard for people to read?  Really???

// Amurikah!
// Fark yeah!
 
2013-12-04 08:54:43 PM  
good lord... that was an awesome article!
 
2013-12-04 09:09:17 PM  
That's a lot of words to say, "I don't know."
 
2013-12-04 09:17:01 PM  
Peki:

I can't read Tolkien because he likes to describe to the inch the distance between the bark lines on the trees of whatever the hell. Much easier for me to go "Oh, if the atoms in the atmosphere absorb mostly blue light, then the atmosphere ought to be red."

I like Tolkien, and I don't mind his detail that he goes into things.  It's part of the whole kit and caboodle when you deal with high fantasy stories involving elves, dwarfs, and other creatures.  But what irks me the most is that he has an annoying habit of expressing everything in poetry.  Sure, he was a professor who specialized in Anglo-Saxon and English Language and Literature, but I doubt it was necessary to spout that much poetry for everything.  And some of it got really childish and laughable, and it took away from the books.
Boromir got turned into an orc arrow pincushion?  Let us sing lamenting dirges while shedding manly tears of sadness at the loss of a brother in arms.
Rousing the Riders of the Mark?  Let me, the King of Rohan, recite some poetry.
In trouble and need to summon Tom Bombadil?  Recite these dozen lines or so calling me in song, and remember to recite them exactly as I say them to you, or I may not come.  Sure, you might be sucked in by evil spirits related to the Witch King of Angmar, who just happened to wipe out the humans here a while back, but that's secondary.
It's like song and dance will solve all your problems.
 
2013-12-04 09:26:00 PM  
Thanks, I didn't really own my mental inadequacies today, but that article fixed that!  I am going to go fingerpaint for awhile.
 
2013-12-04 09:26:14 PM  
www.jesuotaku.com

/HOT!
 
2013-12-04 09:27:44 PM  
Catchy title that creates interest.

random text that really doesn't help.
 
2013-12-04 09:43:35 PM  

Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.


-- Someone found a flaw in WinXP

-- Microsh*t is going to fix it, but then after that everyone's on their own because MS is more interested in pushing their Windows 8 p.o.s on everyone.
 
2013-12-04 09:46:42 PM  

TV's Vinnie: Three Crooked Squirrels: I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.

-- Someone found a flaw in WinXP

-- Microsh*t is going to fix it, but then after that everyone's on their own because MS is more interested in pushing their Windows 8 p.o.s on everyone.


Well, I hope they hurry. Being underwater and having way too much gravity is making me depressed.
 
2013-12-04 09:47:08 PM  

eyeq360: Peki:

I can't read Tolkien because he likes to describe to the inch the distance between the bark lines on the trees of whatever the hell. Much easier for me to go "Oh, if the atoms in the atmosphere absorb mostly blue light, then the atmosphere ought to be red."

I like Tolkien, and I don't mind his detail that he goes into things.  It's part of the whole kit and caboodle when you deal with high fantasy stories involving elves, dwarfs, and other creatures.  But what irks me the most is that he has an annoying habit of expressing everything in poetry.  Sure, he was a professor who specialized in Anglo-Saxon and English Language and Literature, but I doubt it was necessary to spout that much poetry for everything.  And some of it got really childish and laughable, and it took away from the books.
Boromir got turned into an orc arrow pincushion?  Let us sing lamenting dirges while shedding manly tears of sadness at the loss of a brother in arms.
Rousing the Riders of the Mark?  Let me, the King of Rohan, recite some poetry.
In trouble and need to summon Tom Bombadil?  Recite these dozen lines or so calling me in song, and remember to recite them exactly as I say them to you, or I may not come.  Sure, you might be sucked in by evil spirits related to the Witch King of Angmar, who just happened to wipe out the humans here a while back, but that's secondary.
It's like song and dance will solve all your problems.


it is better with the poetry, reminiscent of skaldic storytelling.

truly, take the time to read it all, and the experience of the story is better by far.

/ and the science in the article wasnt dumbed down enough for people?
 
2013-12-04 09:52:14 PM  
It would be filled with twice the number of morons that the Earth is?
 
2013-12-04 09:52:29 PM  
machoprogrammer


Is that you, Jack Handy?
 
2013-12-04 10:09:41 PM  

legion_of_doo: zimbach: I came expecting Kerbal Space Program screenshots; leaving disappointed.

i thought KSP was about blowing up little green retards in stupid big rockets!


That's only half the game. There's a whole solar system of planets and moons to explore and crash into and abandon those little green retards on.
 
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