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Your Project Ideas; A place to share your ideas for projects
Topic Started: Oct 14 2015, 09:27 AM (65,369 Views)
opeFool
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My ideas which may or may not be original:

Green Marble- planet with only plants, exobiology.

Dragons- humans create Dragons because why not and then humans die out.

Possibly a water-world exobiology project.

A vanilla future evolution project focusing only on life 100 million years into the future. Humans are still around though, albeit highly evolved.

Exobiology project focusing on a gas giant.

Landlocked exobiology project similar to Illion but without an ocean and only has life near the terminator.

Life on an icy moon like Europa.

Not too creative but I'd like to give these a try.
Edited by opeFool, May 29 2017, 09:52 AM.
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Kerguelen
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Interesting. I think that I may do an exobiology project someday or at least think of a premise for one.
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A merciless world where the rains never come. With rolling dunes and gigantic mountains. Welcome to the land of
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Far far away in a distant land. Emperors reign and beasts prowl. Monsters and demons fill the deadly forests. Let us take a
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IIGSY
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A planet with only one metazoan. C elegans.
Projects
Punga: A terraformed world with no vertebrates
Last one crawling: The last arthropod

ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)

Potential ideas-
Swamp world: A world covered in lakes, with the largest being caspian sized.
Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal.
Tri-devonian: A devonian like ecosystem with holocene species on three different continents.

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Phylogeny of the arthropods and some related groups


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Rodlox
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gestaltist
May 29 2017, 04:28 AM
Rodlox
May 29 2017, 02:14 AM
gestaltist
May 29 2017, 12:11 AM
Inceptis
May 28 2017, 05:39 PM

Fonix is still tidally locked, it's just that it experiences extreme libration of its sun, distributing the sunlight more evenly across the surface. It would also create some interesting spots in the shadows of mountains where the sun rises fatally and sets friendly, working vice versa.
Hmm. Tidally locked on a very eccentric orbit? Alright. Then we are back to my original question. You only have one side of the planet recieve heat. Air on that side will be constantly rising due to warming, whereas it will ge falling on the dark side. Such a one-sided movement will probably tear the atmosphere apart - it will simply evaporate into space on the day side. What is your solution? An eccentric orbit does little to change that.
unless it gets around to the other side of the planet (or even to any nonsunward side) before it evaporates into space.

yes, every planet loses some gas to space. even Earth (arid zones are particularly bad for this, my science lessons always said, because gas and humidity escaped the atmosphere during the day)...and yet Earth manages to survive 4 billion years with arid zones.
True, but Earth has various counterbalances. E.g., the most arid areas are in the subtropics where the air actually falls due to the Hadley cell terminating there. This prevents too much air from escaping at those latitudes. On a tidally locked planet, creating a stable circulation pattern is much harder - I'm not saying impossible, mind you, but unless you want to handwave it, it is the primary concern on such a planet.

Interactions between the planetary rotation (and Coriolis force) and the constance of the subsolar point are not trivial to calculate. It's a completely different situation than on Earth, where it's not a point but a band that gets the most insolation. Having a hot band allows for Hadley cells forming, and - subsequently - the whole atmospheric circulation with jet streams, etc.

With a tidally locked planet, it's different. The air movement wouldn't start North and South from the Equator, like on Earth. It would start North, South, East and West from a single subsolar point at the equator. It would be deflected by the Coriolis force to one side, but it would be more local.

Look here for some more information.

an interesting site; i'm fairly wary of sites that say "vote on how accurate this is" but other than that, its neat - useful ideas at the very least.

though it says, in contrast to your statement:
Quote:
 
Note: While this isn't a complete answer, it turns out that your intuition is mostly right.

The Wind

Wind currents would, generally, go from the day side to the night side. This depends, however, on a lot of factors. Such factors can be temperature of the star, landmasses, density and composition of the atmosphere, oceans, and others. Cornell University did a neat study on tidally locked planets, if you would like to take a look. They even address Coriolis Effects! As a simplification and summary, the faster your planet goes around your star, the more your winds get mixed up.

We know that, eventually, the air from the cold side will "want" to go to the warm side, due to pressure, gravity, and diffusion. This may form the equivalent of Hadley, Ferrel, and Polar Air cells, except it involves air going from the day side to the night side instead of equator to pole. It turns out modern simulations find that such circulation would actually keep the night side quite warmer than previously thought. See the wikipedia article about the Habitability of Red Dwarf Systems.


so the hot air goes to the night side rather than into space.
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Rodlox
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whats worrying is this one: no hurricanes on tidally locked planets
https://worldbuilding.stackexchange.com/questions/80664/air-routes-around-a-hurricane-eye-on-a-tidally-locked-planet?noredirect=1&lq=1
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Parts of the Cluster Worlds:
"Marsupialless Australia" (what-if) & "Out on a Branch" (future evolution) & "The Earth under a still sun" (WIP)
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gestaltist
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Rodlox
May 29 2017, 09:06 PM
an interesting site; i'm fairly wary of sites that say "vote on how accurate this is" but other than that, its neat - useful ideas at the very least.

though it says, in contrast to your statement:
Quote:
 
Note: While this isn't a complete answer, it turns out that your intuition is mostly right.

The Wind

Wind currents would, generally, go from the day side to the night side. This depends, however, on a lot of factors. Such factors can be temperature of the star, landmasses, density and composition of the atmosphere, oceans, and others. Cornell University did a neat study on tidally locked planets, if you would like to take a look. They even address Coriolis Effects! As a simplification and summary, the faster your planet goes around your star, the more your winds get mixed up.

We know that, eventually, the air from the cold side will "want" to go to the warm side, due to pressure, gravity, and diffusion. This may form the equivalent of Hadley, Ferrel, and Polar Air cells, except it involves air going from the day side to the night side instead of equator to pole. It turns out modern simulations find that such circulation would actually keep the night side quite warmer than previously thought. See the wikipedia article about the Habitability of Red Dwarf Systems.


so the hot air goes to the night side rather than into space.
I did provide a link to a scientific paper in an earlier post but that one didn't get any comments. ;) I linked the "interesting site" mainly due to to pictures that illustrated my point.

You are right, it is possible that there would be sufficient air transport between the day and night side to keep the atmosphere running. The problem is: under what conditions? I have found another paper that deals with Earth-like planets around M-class stars. Quite interesting, and it seems there is quite a range of possible planets. I think it's a must-read if you want to work on a tidally locked planet. An interesting takeaway is that it largely depends on the atmospheric composition, and specifically, on whether the dominant gas will freeze on the dark side. So I was wrong in my assumption that the big problem was the air escaping into space. The real problem is the air becoming trapped due to the cold.

But the OP hasn't commented in a while, so we may have scared them off anyway. ;)
Scosya - my project
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Inceptis
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I've been trying to read what you've given me. Will give more info on Fonix later.
This was getting fairly big.
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Nembrotha
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A Future Evolution project, set 80 million years from now. It's still the Cenozoic and Mammals still rule, but some new terrestrial birds and endothermic squamates are ramping up the competition.
New lineages have evolved, such as Shelled Frogs, massive crocodile-like salamanders, Megafaunal flightless Geese, marine otters, giant predatory tenrecs, and elephant-sized camels, among others. There will also be a new lineage of plants, which are essentially flowering conifers. Their pollen cones have convergently evolved to be similar to the flowers of angiosperms, even evolving "petals" of sorts.
Journey to the Makrinocene, a world in the twilight hours of the Cenozoic! (Slightly Inactive, will eventually pick up)
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Inceptis
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Quote:
 
Shelled Frogs, massive crocodile-like salamanders, Megafaunal flightless Geese

So, testudine-like frogs, neo-metaposauruses, and terror geese?

Posted Image

Quote:
 
There will also be a new lineage of plants, which are essentially flowering conifers. Their pollen cones have convergently evolved to be similar to the flowers of angiosperms, even evolving "petals" of sorts.

I honestly would be more up to gnetales getting a spot in the limelight, but conifers have a fair bit of potential. Would the seeds develop internally or exposed to air like in conifers? Also, how would the leaves be structured as compared to conifers?
Edited by Inceptis, May 31 2017, 05:31 PM.
This was getting fairly big.
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Nembrotha
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Inceptis
May 31 2017, 05:30 PM
Quote:
 
Shelled Frogs, massive crocodile-like salamanders, Megafaunal flightless Geese

So, testudine-like frogs, neo-metaposauruses, and terror geese?

Posted Image

Quote:
 
There will also be a new lineage of plants, which are essentially flowering conifers. Their pollen cones have convergently evolved to be similar to the flowers of angiosperms, even evolving "petals" of sorts.

I honestly would be more up to gnetales getting a spot in the limelight, but conifers have a fair bit of potential. Would the seeds develop internally or exposed to air like in conifers? Also, how would the leaves be structured as compared to conifers?
Yup, you're right about the first two! The flightless geese aren't really Terror Geese, they're more like Moas.

Gnetales are indeed an underlooked group and should have more time in the spotlight. I've already had a concept of a "grassland" composed of Ephedra, so go figure!

As for the Flowering conifers (which I have dubbed Coniflowers), their seeds would develop inside a sort of "False fruit" which is actually a modified cone. The leaves would still probably be needle-like, however. Sorry if this doesn't make much sense, plants aren't my strong point XD
Journey to the Makrinocene, a world in the twilight hours of the Cenozoic! (Slightly Inactive, will eventually pick up)
Come to Terra Fantasia, a bizarre world where nothing is as it seems! (Ongoing)

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Inceptis
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It doesn't make a lot of sense. Gymnosperm means naked seed, because the ovules develop exposed to air. In angiosperms, they develop in a cavity in the ovum. However, I think it would look like a magnolia fruit. Does this seem about right?

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This was getting fairly big.
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Talenkauen
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Leaellynasaura72
May 31 2017, 05:51 PM
As for the Flowering conifers (which I have dubbed Coniflowers), their seeds would develop inside a sort of "False fruit" which is actually a modified cone. The leaves would still probably be needle-like, however. Sorry if this doesn't make much sense, plants aren't my strong point XD
Yews and podocarp trees create berry-like fruiting cones, that are eaten frequently by birds. Pine seeds are often farmed for food as "pine nuts", as well.
PLEASE NOTE: If I come off as harsh or demanding whilst talking to you, please tell me. I apologize in advance.....


UPCOMING PROJECTS:

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Nembrotha
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Whoops, I totally forgot about podocarps and yews! :") But yes, the Coniflower's fruit would be similar to the fruit of said trees.

EDIT: Inceptis, that magnolia does look like what I envisioned. As I said, plants really aren't my strong point, so thanks for the constructive criticism!

Edited by Nembrotha, May 31 2017, 06:53 PM.
Journey to the Makrinocene, a world in the twilight hours of the Cenozoic! (Slightly Inactive, will eventually pick up)
Come to Terra Fantasia, a bizarre world where nothing is as it seems! (Ongoing)

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IIGSY
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If you saw my other thread, then you would know I have this idea of having three independent lineages of land vertebrates co-existing on a terraformed planet. At first, I presented the epaulette shark, mudskipper, and australian lungfish. But after a bit of discussion, I settled on a more realistic set: Australian lungfish, giant snakehead, and ganges shark. I might add some more vertebrates, but that's undecided.

The planet has three continents, all very far away from each other. Each fish will be introduced to their own continent. There will be no angiosperms and (probably) no gymnosperms. The flora will consist of moss, lichens, hornworts, liverworts, ferns and green algae. Terrestrial arthropods will consist of isopods, springtails, amphipods, crabs, millipedes, proturans, mites, symphalans, pauropods, silverfish, bristletails, scorpions, and mygalomorphs (probably some more). There will be no pterygote insects or araneamorph spiders.

Basically, I'm recreating devonian terrestrial ecosystems with holocene species on three different continents. Can this work? Do I have to add more vertebrates? How should I handle aquatic ecosystems?
Projects
Punga: A terraformed world with no vertebrates
Last one crawling: The last arthropod

ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)

Potential ideas-
Swamp world: A world covered in lakes, with the largest being caspian sized.
Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal.
Tri-devonian: A devonian like ecosystem with holocene species on three different continents.

Quotes


Phylogeny of the arthropods and some related groups


In honor of the greatest clade of all time


More pictures


Other cool things


All African countries can fit into Brazil
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Kerguelen
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I've been thinking of a world where all organisms use Lamarckism to evolve. For those of you who don't know what it is, Lamarckism is the theory that if a person runs better than most people and marries a person who also runs, the baby will have strong legs and high stamina.
In the shadows and crevices they lurk. Hiding from human eyes they are
Creatures From Beyond

Upcoming Projects

A merciless world where the rains never come. With rolling dunes and gigantic mountains. Welcome to the land of
Aridia

Far far away in a distant land. Emperors reign and beasts prowl. Monsters and demons fill the deadly forests. Let us take a
Journey to the East

A lab experiment gone wrong. A flash of thunder and lightning. Mankind finds itself cast into a new world.
Predators of the Plioence

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