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A potential answer might be as follows;
I have wanted to imagine a red dwarf tidal locked world with a sea on it’s dark side. As improbable as that might be, it might exist in a few instances somewhere in the universe. Humans should they ever travel between stars might create or enhance such worlds.
The day side a dry desert, the night side wet in some locations, but dark. No competition from photo organisms, so chemical driven organisms if any organisms, being the highest, unless some organism could harness kinetic energy, the energy of wind of the air or waves in water or currents in the water.
That is not so silly, as some organisms on a microscopic level use proton flow to drive themselves through water. They consume internal chemical energy to swim. Not with muscle, but with proton motors in some cases. So in a dark star lit place, with wind and waves and currents, the masters of such a method might reverse it and generate energy for their use by anchoring to a surface and allowing a flowing fluid to impel a mobile sub-device, an organic generator. So plants in the darkness feeding on the motion of fluids. Very likely animals would appear to feed on such organisms.
But put a spin on the planet then, and let it be lighted part of the day and a more powerful energy source would lead to a ecosystem such as we have, and any organisms which live off of a lesser energy source would become prey, would be gone in short order. But I do wonder if there are any microscopic organisms hidden on Earth that might harness fluid motion for energy.
Telepathy, Radio heads, blabbers:
Any communicative method such as telepathy or radio heads suggests that the efficiency of a hive mind will internally weed out any autonomous large brained subset. Any thinkers will have their intellectual property taken without payment. No rewards for big brain within the tribe under those circumstances.
Tribes are bad, unless you think talkers should get free rewards and rule. The villagers don’t understand me. The torches and pitchforks, I hate them. :0 It takes a village to raise a child badly.
Family:
A competing organism which only uses hiving to “Program” it’s members may have the advantage, as they will not as easily reveal plans and intentions to be taken as intellectual property theft by the hivers.
We are in a continual contest between these forces. Now communication is breaking down, chaos is taking over, because the communicators could not avoid being gluttons, and had to take too much. It’s a pity, but one hand washes the other. It takes time though. Take a vacation if you can. Life is short, eternity is forever.
So, could these things be used to provide a dense solar flux pointed at Venus, to swell it's atmosphere, and allow solar powered aircraft to extract it to orbit? Mine the atmosphere of Venus.
A swollen atmosphere would put floating colonies further up in the gravity well of Venus, and also provide energy to to colonies to Freeze CO2, into boosters, and also heat them at a rate suitable to provide thrust. I would also hope that Sulphuric Acid could be induced to break down, and recombine with other atmospheric chemicals to reduce and eliminate the acid nature of the environment.
http://iaxo.web.cern.ch/iaxo/the-experiment/physics/
OK, so there are maybe's.
Which direction would grant energy and which would consume energy? Photon>Axion, Axion>Photon?
I think you indicated Axion>Photon.
Dark Matter apparently clings to matter gravitationally as a rule, or vice versa. So, there would be fields of concentration if we were lucky enough to have a Axion dominated Dark Matter. Too bad there would not be a way to funnel it into a magnetic field.
Stars might be doing this though, since they are magnetic to a degree?
I am not capable of answering your questions Josh.
However I can ask questions. Maybe very silly ones.
I am currently curious what is the interaction of Dark Energy and its presumed virtual particles with Baryonic Matter?
A pair of virtual particles, winking into being inside of a matter object. Do they interact ever? How? Does it matter what is the temperature and pressure of the matter?
A comet with low pressure and low temperature, and a Super Massive Black hole with enormous pressure, energy, and heat I presume. Those might be the Baryonic matter extremes.
Where is Dark Energy getting it's means to expand? If it is possible that Black Holes were supplying some of it, can it work in reverse, and donate energy to objects?
I know my body is not heating up from it or dissolving from virtual anti-matter winking into being inside of it, but my understanding is that it is so dispersed that our whole solar system contains only a little.
As for Dark Matter, I have read that there is a notion by a minority that some types of it might interact to some small degree with baryonic matter.
http://science.nasa.gov/astrophysics/fo … rk-energy/
One explanation for dark energy is that it is a property of space. Albert Einstein was the first person to realize that empty space is not nothing. Space has amazing properties, many of which are just beginning to be understood. The first property that Einstein discovered is that it is possible for more space to come into existence. Then one version of Einstein's gravity theory, the version that contains a cosmological constant, makes a second prediction: "empty space" can possess its own energy. Because this energy is a property of space itself, it would not be diluted as space expands. As more space comes into existence, more of this energy-of-space would appear. As a result, this form of energy would cause the Universe to expand faster and faster. Unfortunately, no one understands why the cosmological constant should even be there, much less why it would have exactly the right value to cause the observed acceleration of the Universe.
If I had make a speculation, I would say that more space is created by injecting energy into it. But that is only guessing. I am very poorly equipt for this subject.
If this were somehow true, then I would be looking for evidence that energy from hot baryonic objects is creating more space/dark energy. Black Holes, Stars, hot planet cores?
This is all I have.
http://www.space.com/26713-impossible-s … -test.html
I am ignorant on this topic, so I will not try your patience any further. Perhaps when I have more time in the near future I may try to get some education on the matter.
That's baryonic of you?
Perhaps it expands dark energy when the virtual particles vanish and might carry extra energy with them?
Do hot planet cores, stars, black holes, radiate energy into dark energy, so causing it to expand and the universe to expand? It might explain how energy stored in baryonic matter goes into black holes and perhaps exits as dark energy, and causes the universe to expand at an increased rate? Maybe dark energy is a "White Hole".
Quack! Quack! I really don't have the capacity to argue against your points, but I am inclined to bet my money that there is more than baryonic matter.
Just a speculation. Maybe I did not understand your reply well enough. No offense was intended.
I can't go very far in this conversation without displaying extreme ignorance. But I will ask a further question.
Taraformer.
If a small collection of virtual particles existed at the same tiny moment in this device and the microwaves heated them a bit before they winked out and they gave momentum to a spacecraft by that heating, did you intend to say that that momentum would be pulled back when the particles winked out? (When the virtual plasma winked out).
And I agree this is probabbly NASA saying they don't have it defined enough and someone wanted to publish a news article about it for sensationalism.
However many people think Dark Energy exists (Very tenuous amount in out whole solar system). I don't see that anything is being violated if you supply the energy. It just might not actually work. And will then be another "Cold Fusion".
But there is apparently lots of Dark Matter and even more Dark Energy. I have to be attracted to speculations about it.
Hi guys, didn't notice your posts until now.
All right, I left myself some loopholes. I did mention a possible rocket thruster added to the mix, I was thinking a solid one that would ignite just before landing and keep the impact materials from becoming unrecoverable or contaminated by mixing with soil too much. But I would prefer to find a hard lander method that would leave a recoverable/valuable material on the ground to retrieve.
Robert could be right, that is a complex machine, and I do have trouble figuring out what the rotors could be reused for. Still I will not abandon it entirely, I will just like to hear more of alternate ideas. My understanding would be that the rotors would act like a parachute. I understand the parachutes are quite expensive. I was hoping the rotors could be mass produced. Actually, I was hoping that they could also be the heat shield to a degree.
I know I am out of your league both of you. But if you dropped a spider from a high altitude on Earth, it can survive because of the surface area, the air drag being a large component of its character relative to it's mass. If you dropped it on Mars it would splat, but if you felt a splattered spider was useful to you it would be available for recovery.
The flying saucer ballute thing just tested is also a potential variation.
I have seen ideas about landers that would be like sheets of paper.
Roberts idea might be best though. I would like to get a low cost delivery of a needed solid state material (No liquids or gasses).
I think this would be valuable during certain phases of development.
I have also thought of impacting the edges of dunes ice filled or not ice filled. An angular impact. However that requires extreme precision I think, and it might scatter the materials delivered too much. I have also thought about a little bomb that fluidizes the ground before the device impacts (The bomb hits the surface first), so then you would
have a splash-down, but might get it burried too deep. If it was a shallow deposit of sand on top of bedrock maybe that would be OK, but then you have to prep the site, and again your accuracy has to be very high.
If your stuff does splatter, perhaps a crater with walls would help.
The roton is rather complex I admit. It was fun to think through it.
During the initial phase of habitation of Mars, your activities are Apollo Moon Mission like.
Later, after hunting for means of surplus and storage, Your risks are mitigated.
If you have machines that generate surplus and have means of storage, you have more options.
For the low latitude base, I would like to avoid moving and baking soil. I suggest a rover with a transparent dome over it, and skirts that can near the ground.
During the morning hours when solar energy was starting, the rover could dwell over ground surface enriched with condensation from the night, and allow the solar heat inside the dome to vaporize it. it being lighter will tend to float an vacuum device could collect and and compress it a bit, and produce a small amount of condensate. IF a microwave system were useful it could be incorporated into the process.
The wheels of the rover could be composed in part of Iron/Nickle magnets, and would pick up Iron/Nickle particles as it traveled. Robotic systems could collect these Iron/Nickle particles off of the wheels.
If there was a junk yard of hard landed processed materials, then the rover could go over and collect some of it. Then it would bring it back, then humans would dust it off, and perform maintenance on it, and collect the water and Iron/Nickle, and scrap. That water would be make up water to make up for losses that would happen during the process of making a living at the low latitude base, but water recycling would be very advised.
The low latitude base would have more regular solar energy, but would be subject to disruption from dust storms which it might have a hard time dealing with.
The high latitude base would have more irregular solar energy, but also large water supply. Further, by carving a system of tunnels in a glacier, a storage place for O2.
Further if a melt water puddle were used it could also store some oxygen.
Plastics would be an answer to how you build a surplus of Oxygen. Turn some hydrocarbons into plastics, structures.
A simple device to generate useful materials would be a plastic bag of ice water, only slightly pressurized, and exposed to sunlight.
As for devices that generate Oxygen and fuels from CO2, and H2O, having a surplus and a means of utilizing excess capacity to fill your storage devices with Oxygen, and making plastics, would be economically correct. Having redundancy, spare parts. Being able to manufacture the parts from local materials, recycled materials, and materials from the hard landed scrap yard.
Solar energy, a surplus of capacity is required there as well, and a means to put surplus energy to a useful purpose.
Hardening the high latitude base would allow staying at it year around. Ice caves filled with Oxygen, were people might even dwell at times.
Salt and fresh water suggest a way to store energy through the winter. Fuel tanks and Oxygen from the ice caves as well.
After that level of development, mines, but who knows where they would be? You would have to move to a new level of ability for that.
Scientific American "Secrets of the UNIVERSE Past, Present, Future".
Anyway, I risk very little. Not planning to advance to anything that matters.
I am comfortable thinking that if a particle exists even only for a instant, and it has mass, and you can push on it an opposite reaction will occur. The words significant, and useful apply though.
The effect may be insignificant related to the usage of resources to cause it.
But the truth is that Dark Matter and Dark Energy have not been sufficiently defined to even hope to develop machines around them, but discovery so far hints that there is a whole different reality that we have not been aware of. It's kind of funny. Might aliens, angels, and God be found in these other realities? Certainly if Dark Matter and Dark Energy do exist, then they contain information about themselves, and perhaps an aware presence.
Many persons have looked at baryonic matter, and said "Man is all that we see as aware". Therefore they have begun to think in terms of masters and slaves and have begun to frantically try to justify such a selfish attitude. Horrible wars based on calculations based on insufficient information. Practices of domination justified, thinking that a human can play God.
Vague understandings are now filtering down to the general population, which they can become aware of if they wish. At that point, with more people who actually deal with non-theoretical science learning, the material and spiritual culture have an opportunity to change. Inventions, perhaps, and perhaps a new awareness of the infinite, or what to us is the infinite.
It seems that our sciences are beginning to delve into items that are not on the periodic list more or less. It may offer doors to entirely new possibilities.
When I went to school, none of this was considered. They already knew everything that there was to know. Now they don't know so much ![]()
I have noticed that a great deal of confusion comes from our time perspectives, and also the uncertainty of the facts on the ground.
At a high latitude such as a glacier in the Hellas Basin, an abundance of water seems available and resupply perhaps assured. But the seasonal climate is unfriendly.
At a lower latitude, then water would have to come from the soil, be baked out. I suggest a migration method.
Robotic rovers, and stripped down landers. Rover robot technology is being demonstrated on Mars as we now exist. That should be continued and expanded into more rugged and capable devices, once humans can obtain materials on Mars. As for the landers, if you strip off the heat shield, and reposition the canted engines, perhaps they could serve to migrate humans between a summer base at a higher latitude, and a winter base at a lower latitude. Twice a year, until the high latitude base was a safe and useful place to keep humans in year around.
An abundance of water is necessary for any civilization, so, the lower latitude base would only be for survival until the higher latitude base had been built up enough for humans to safely winter over, and be able to do useful work year around.
I have mentioned hard landers in another thread. One activity of robotic rovers could be to retrieve pieces from a junk yard created by hard landing some device. Ideally, the device would not require a parachute or rockets. Hellas offers the best chance of that, but it would be a long way from the low latitude base, so I would suggest two junk yards,
one each near but not too close to each base. The rovers at the low latitude base might focus on collecting water from the soil. Microwaving the top layer, and vacuuming
the vapors with a pump, compressing the vapors into a liquid, bringing it back. Also collecting iron and nickle particles, and also perhaps retrieving parts from a crash junkyard.
The high latitude base should not require it's rovers to collect water. But retrieving junk and collecting iron and nickle particles would be useful.
I don't know if it would pay to have the rovers migrate between bases, likely not.
Solar panels might power each base to a degree, at first with electricity. In off peak times, they might supply electric power to split CO2 into CO and O2. Concentrating mirrors where a device in the focus would provide a heated cavity. Into the heated cavity could be injected CO, and H20. That should provide hydrocarbons and waste gasses.
A vacuum would have to collect that product, to compress it a bit and a cooling process would be desired.
I suppose that a similar process could just heat the CO2 of the atmosphere up in a cavity, and with a catalyst, perhaps split it into CO, and O2, but I don't have many facts on such a dry process. The only think I have heard of is a spinning disk which splits water by being heated and cooled, I think it was some type of iron. It absorbs Oxygen from the water, and expels it when heated, the disk would have one part heated and one part exposed to water vapor I suppose that is cool.
Anyway, if you can't get your Oxygen surplus by splitting CO2 or H20, or from plants, I guess going to Mars is pointless.
Returning to the process that splits CO2 into CO and O2, and then a second process that combines CO with H20 under a mirrors focus, if at the high latitude base the collected hot gasses could be cooled in a melt water puddle, serving multiple purposes. Heating the water, cooling the gasses, and providing a habitat for chemically driven plankton. The plankton could be fed Hydrocarbons and Oxygen, or CO and Oxygen. The mirror process would have amplified the energy level of the chemical, but maybe the hydrocarbons would be too valuable to use that way.
If desired, the puddle could be given a low pressure transparent shell covering, allowing light in. I suggest bubbles of plastic. Plastic pillows so to speak. With skirts around their perimeter. The soil over the ice would be cleaned off, and a pillow placed down to make a window, and soil and rocks placed over the skirt to hold the device down.
creating a solar window. Then in addition to chemosynthisis, photosynthisis might occur. But this would be the process of building up the high latitude base. As vapors migrated under the skirt, they would tend to condense, as the soil temperatures would be rather frigid. This would reduce but not eliminate water losses. So a second pool would be necessary, where it's volume would be sacrificed over time, the provide make up water for the pool with the bubble windows.
That is enough for now. I look forward to various criticisms, and will try to justify myself with more if the inhabitants of this site like.
http://www.space.com/26713-impossible-s … -test.html
I have wondered if you could push on virtual particles between the time they wink in and out of existance.
The virtual particles would provide the mass, but you would have to supply the energy.
However I wonder if the inertia of dark matter could some day be harnessed? But then it has gravity and I presume mass as well also.
I am not a scientist and have no need for credentials. So, I will bite on the rumors.
Thats a fair question.
Yes, if a needed material can be obtained in an easier fashion, why do it?
I am only think of steps.
In step1, I presume that needed cargo is delivered to the first humans on Mars before they land, and after they land as needed. If the device I described could be competitive with already planned methds, then use it.
In step 2, I would presume that the landing site would have been choosen for access to materials needed, but more than likely would not have the full spectrum of useful materials availible in a form that could be used at that level of industrial developement. So, I choose Copper, but it may be that the landing site would have that mineral, but I am betting it won't have it in a form that is easily converted to useful metal, not unlil the infrastrucure has been better developed. If not Copper, maybe Gold or Silver, rare Earth metals or something else. So, economics would determine it. If you had the material and the tools, and the labor force (Ability to manipulate a raw material into a finished material), then absolutely why do the roton thing? But I have heard talk of hard landers before for certain materials, here is a hard lander (Maybe), and maybe it would work better than other designs for hard landers.
In step 3, the infrastructure would be built up sufficiently that such devices would seldom or never be used again.
But you are right to question it. I am only proposing a supposed machine that might be a useful tool. There is no proof yet that it is a useful or preferred tool.
Talking to myself ![]()
http://cen.acs.org/articles/91/web/2013 … Salty.html
Another method to utilize solar energy on Mars. Since Greenhouses are desired, perhaps with windows and not artificial lights, I suggest that they have a water pool in their floor, and elivated above that perhaps
hydrophonic gardens. The salt water pool will mitigate the day night temperature extreems, tend to stabalize the humidity within the enclosure, and in general will be evaporative.
Fresh water condensing on the walls collected at night could then be the source of drinking water, wash water, and electric power (Along with brine from the evaporative pool), as suggested in the link above in this post. So water, electricity, food, and likely Oxygen from one type of structure design.
While it might be nice to eventually have other types of solar collectors, it can also be noticed that if you have reservoirs of salt water and fresh water in the proximity of this setup you then have longer term energy storage (And fresh water) as well, a hedge against dust storms, seasonal variations of solar power, and some equipment breakdowns. That is not so easily accomplished with other forms of solar power.
Concentrating mirrors would also be useful in this scheme, if you wanted to get your brine and fresh water that way as well.
I am thinking that the whole device would spin on its way down. For a heat shield, I might be at a loss, but the blades to a degree could provide surface area, and dissipate heat. Perhaps critical areas would be coated with an ablative material.
Looking a bit like this: _____________ <---Rotor
|
|
| <---Shaft
|
0 <---Payload
No Bearing.
The payload could be of a material desired such as copper, formed into a crushable sponge to absorb some of the impact.
Building up rotational speed as it falls, and as the atmosphere thickens becoming more effective in slowing the rate of fall.
Perhaps at the altitude just before impact some small rockets fire to increase spin, or perhaps in a more conventional manner to fire from the Payload/Shaft in a downward direction.
A sensor that determines when that rocket action occurs. Possibly triggered by air pressure, or some other instrumentation.
The thing would not be easy to steer to a chosen location.
At some point duing the development of infrastructure when critical materials are needed but hard to obtain this might be useful.
Some of the structures, such as the blades might be hard to recycle into useful purposes, but the intention would be to have as much of the device serve a further purpose as possible.
01-August-2014:
I have thought of a possible steering mechanism. Helicopter blades build up a static charge.
So if you had a conductive electrical drain path at about the center of each blade, and used some type of electronics to discharge the charge on a blade as it pointed in a certain direction of the compass, it might draw the whole device towards or away (I don't know). I am thinking of SCR's, with electronic control, but the switching action would have to be very fast.
The drain for the charge could be the payload and shaft perhaps, but I don't know how well that would work. Maybe some kind of hot cathode discharging into passing atmospheric molecules?
Anyway, maybe.
If there were a possibility that that could work, then the lander would have an on board electrical power source while it was dropping through the atmosphere. (I hope)
I don't know what the gyroscopic effects would be either. I don't know that it would be worthwhile to keep the impact soft. Maybe a good wack on impact would be preferred, as it would help dissassemble the device. Maybe the blades could be so constructed that they would bend and break at a preferred location and fly off away from the device.
OK, I'll break the silence.
http://phys.org/news/2014-07-nanostruct … y-co2.html
http://www.mbl.edu/microbialdiversity/f … _dugas.pdf
http://www.alternet.org/story/148403/ca … er_a_spill
http://discovermagazine.com/2013/julyau … man-health
For fuel and food? Chemosynthisis on a large scale might be accoplished by simply melting a puddle/pond in existing ground ice deposites of significant size at higher lattitudes. Add Oxygen and perhaps Methanol from the process in the first link. From that created biological material, perhaps fish food.
And the Methanol I presume as a fuel, and a source for plastics.
Some plastics being used in the evil 3D printer.
The point being that such a construction method for a biological "Farm" from chemicals could perhaps enclose a significant volume to host organisms at a cost competitive with building a solar driven greenhouse.
Creation of Methanol could be done as a load leveliing process, the electricity used for that purpose when it was at a surpluss. A Mars community would need solar electric or nuclear electric (Same difference).
And yes maybe Mushrooms could deal with Methanol as a food as well.
01-August-2014:
This actually would fit well:
http://www.space.com/26705-nasa-2020-ro … -tech.html
With the CO, it would be easier to create hydrocarbons, or really, there might be microbes that could live off of O2 and CO directly. Fish foods, and feedstock for plastics. Maybe even a direct food to humans fom the microbes?
Breathable air and rocket fuel
The instrument is known as MOXIE (Mars Oxygen In-Situ Resources Utilization Experiment). It will pull carbon dioxide from the thin Martian atmosphere, which is composed of about 96 percent CO2, and turn it into pure oxygen and carbon monoxide, said Michael Hecht of MIT, the instrument's principal investigator.
A bulk food source would be nice to have. Something the equivalant of Potatoes, Cheese, Yogurt?
That actually would be better than trying to raise fish.
And then of course you would want produce from greenhouses.
So you melt a puddle of water with an ice and dirt cover, and pump O2 and CO into it, and then hope to extract plankton of sorts.
OK, correct, if in a boat, on a water only world, you might drift to any place in accordance with the force of surface currents of water and wind.
A good conversation I think.
However we are modeling two different worlds. You are speculating on an extreme water world, and I am speculating on one that resembles Earth with
the exception of having just enough extra water to cover all or almost all land.
In the case you propose, it is possible that a hot core would drive ocean currents that would dominate surface flows, and so the ice pack.
In the case I propose, I make the case that there are several materials to pay attention to.
1) Ice, lighter than water.
2) Cold Fresh Water.
3) Warm Fresh Water.
4) Cold Brine.
5) Warm Brine.
It is intuitive that water ice will float on water in the planets gravitational field.
It is intuitive that brines and/or cold water will sink in the presence of lighter types of water, those that have less salt and/or are warmer.
While the fluid shell of the planet is in large part controlled by being in the gravitational field of the planet, it is also in the gravitational
field of the star that the planet orbits around. (I will keep things simple by leaving out possible influences from a moons influence).
So, in any moment in time separated from all other moments in time, so ignoring the orbit of the planet, and rotation, but looking at how the stars
gravitational field acts on it, the stars gravitational field will attract the cold and briny waters toward the star, and will allow the lighter items
to "Float" to the back side of the planet. So ice and surface water warmed by the stars light will tend to "Float" to the back side of the planet.
However if water is warmed by the star, and some of the water evaporates, then a more briny and heavier solution will result. On the "Dark Side"
of the planet, the fluctuations of temperature under the ice at the interface with liquid water, will cause freeze/thaw cycles where the freeze part
will squeeze cold brine out of the ice, which will fall to the ocean bottom, and then begin "Falling" along the ocean bottom towards the stars
gravitational attraction, to the day side of the planet.
But the spin of the planet will modify things a bit, but it is also true that if the core is gravitationally locked, the rotation of the planet
under the water against the water (Friction), will tend to drag the water along. As it happens, if the rotation of the planet is synchronous
with the orbit of the planet, in effect, there will be little disagreement between the average momentum of the water and ice, and the average
momentum of the planet.
In the case where a planet had a large mass such as Tibet protruding upwards, it is very possible that the planet itself would lock with that
land mass pointing at the star. If that land mass actually alone protruded above water, then that would be interesting. If that land mass
had a rift valley running through it like the Mariner Rift Valley, and it was flooded, then that sea could be warm, even though the bulk of
the exposed water would likely be much colder.
From the dark side Very Cold Ice, to the day side warmer ice at the terminator, as progressing toward the star even warmer ice, then finally
ice water, then somewhat warmer water, then a ring of land, then an inland sea, which would be the warmest water, particularly if the communication
of currents between that inland sea, and the greater sea was limited, but not absent.
It is sad to see how little activity is happening here. I hope I am not the cause of that.
Anyway, I have done some thinking about minimal water worlds around "M" type stars, that is red dwarfs. And just a little about "G" type yellow stars.
I speculated that an Earth with twice the water perhaps, at an orbit between Mars and the Asteroid belt, and with a reasonable amount of a Nitrogen atmosphere, could support a sun pointing sea, if the planet was gravitationally locked. Most of the planet would be ice, but there would be a sea pointing at the star.
I have speculated that if life were there and if evolution were actually a acting fact, guided by a higher mind or by rules of physics, perhaps microbes in the sea.
Then fishes. Then flying fishes, to escape predators. Eventually flying warm blooded fishes. Eventually birds sort of. To nest, the warmer ice shelves would be a good place to brood young, away from predators. Then deposits of guano on the ice, then plants? Then a strange form of tree, where they are interlocked to hold against the wind, and they are on stilts, and not roots, where the stilts, grow from the plant and then push against the ground. Symbiosis, where the "Birds", bring fertilizer to the trees, and the trees shelter and perhaps even feed the birds. This would occur at the edges of the sea, on the ice shelf.
While seasons would not exist, oscillations in the weather would. At times fierce frigid winds would blow off of the dark side discharging thermal differential, and at other times, the winds would be still, allowing the temperatures to climb in the constant sun. Some melting would occur.
The Mona Loa bug exists in below freezing temperatures in Hawaii. It has antifreeze. Tibet has an insect with antifreeze as well that operates in below freezing temperatures.
Perhaps you can speculate on a world around a "G" type star. Would it have a significant moon?
I can't resist adding a bit more.
For the ice covered polar oceans, in the event that the ice is kept thin enough for sufficient sunlight to pass through it into water, the potential
exists for Oxygen bearing layers of water, long before the atmosphere itself could permit animial life. That Oxygen would come from photosynthisis
by plankton either in the layer of water under the ice, or if it is and ocean with salt in it (Which is likely), then brine tubes in the ice, allowing
the plankton to be inside the ice layer almost to the surface of the ice perhaps at times.
http://oceanexplorer.noaa.gov/explorati … a_ice.html
So I am speculating that fish or other Oxygen breathing animals could grow at some locations in the sea where a lack of toxic gasses existed and the
presence of Oxygen would become sufficient. The humans would have to decide if they wanted to have fish, or Oxygen. They could balance it by poking
holes in the ice with Orbital Mirrors, which would release the Oxygen to atmosphere, and also poison the waters with CO2. They could choose how
much habitat for fish there could be.
This also brings me to some interesting questions. For dry valley Antarctic lakes, are the algae in the top less salty layers from mariene lineages or from fresh water heritage? If not mariene then these lakes might have a much richer and more effective biosphere than I would expect, since brine channels allow algae to be inside the ice/brine tube matrix, which brings them much closer to the sunlit surface of the ice.
So an ice covered ocean on Mars, might be a much more powerful biosphere than an Antarctic dry valley lake.
The first effort would be to use terraforming methods to prohibit the condensation of CO2, and to release the permanent CO2 in the south ice cap.
Having that I would expect that river systems would try to form in the southern hemisphere. Later if they become significant, hydroelectric power would be an option.
By force melting the northern ice cap in particular, and also as a side concern, parts of the south ice cap, ice covered reservoirs would hasten the release of gasses from the flooded soils, which upon release from the waters into the atmosphere would universally contribute to a greater greenhouse effect, warming all the exposed soils and ice surfaces to some smaller degree. It is a happy convergence that an expanding ice covered body of water at each pole could have concentrating mirror type solar power plants that would generate electricity seasonally, and could quench their steam into the waters below the ice. By doing that the thickness of the ice could be kept to a desired minimum to allow the ice covered reservoirs to collect some solar energy as well.
In the northern hemisphere, the desire would be an ice covered ocean that expands until filling the maximum possible area, hopefully being able to fill the Mariner Rift Valley,
In the southern hemisphere, an initial pool would have outlets and perhaps natural rivers, and in some cases created channels, that would cause it to conduct the melt water to lower latitudes to help support a biosphere, and evaporation, biasing the collection of water to the northern hemisphere. That would have to wait until the atmosphere and greenhouse gasses were sufficient to cause a general melting of at least some of the seasonal condensation in the southern hemisphere.
So solar power in the south would be hydro-electric, in low latitudes could be solar panels, and in the north concentrating mirrors, and a semi-natural process where the ice covered sea is also a solar collector. This all tied together in a string like grid running north and south at a particular longitude.
For the northern sea it should be preferred that the ice pack be held fast to the north protruding lands, and that at least in the Mariner Rift Valley there would be open water.
This is more possible on Mars than on Earth, since Mars has only tiny moon tides, its northern hemisphere will continue to be colder, and if the atmosphere is thinner, a wind process for breaking up the ice pack will be weaker. Also on Earth, the oceans have a lot of tropical area to generate warm currents to warm the northern polar seas, it would not be so much on Mars.
But there is no reason not to poke holes in the ice with solar energy from orbital mirrors at locations desired. In particular, I would not object to bringing the average solar flux of the Mariner Rift Valley up to Earth levels, or even higher, to facilitate conversion of CO2 to O2, and Hydrocarbon materials sinking to the bottom of the sea, and to make one place on Mars even more Earth like.
The objective would be to speed up the terraforming process, and to also integrate humans into it fully, and make its processes facilitate the survival and comfort of humans.
I guess I will blab my latest suggestion for a terraforming goal for Mars, and then try to explain how to get to it.
The ideal pressure without adding Nitrogen to the atmosphere would be ~300 mb. But if there is More CO2 than that then it is unlikely to be possible to keep down to that level.
I would see the southern hemisphere and northern hemisphere treated differently.
The south ice deposits are on high ground, and gravity feed would tend to move that melted water towards lower latitudes where I would expect rivers would end evaporating from salt pans.
The north polar cap would be melted to create an ocean covering perhaps 1/3 of the planet. That is if there is enough water.
I would suggest that an irrigation system would move water from the southern condensation and melt areas to lower latitudes as effectively as possible to create a bias where the southern hemisphere donates extra water to the northern ocean. The things irrigated in the southern hemisphere could be salt pans, crater lakes, and perhaps even crops on a seasonal basis at higher latitudes, and to provide water to a very large system of greenhouses at lower latitudes.
The desire to inflate the northern ocean to the maximum possible would be for those parts which would be filled at the lower latitudes, open water could exist. Gravity of the northern ocean into the Mariner Rift Valley system might be a preference. Ice covered parts of the ocean might even so support a more limited amount of solar driven biology.
The ice layer thickness would be modified to thinning by having installations of solar power plants (Concentrating Mirrors) on the ice pack and quenching the steam into the waters of the ocean. Keeping the ice from getting too thick would allow some sunlight to enter, and to also help warm the waters.
A north south electrical power grid at a preferred longitude would transfer electrical power from the ice pack power plants to the shores of the ocean, or to island cities poking up from the ocean ice. The power grid would extend from pole to pole if possible and would support the transfer of power to strings of cities, and would also provide for a trolly car system, which could be used to have seasonal migrations of populations, and to conduct the transfer of commercial materials.
One function of the northern ocean and other smaller bodies of water would be to warm the subsurface to release some of the gasses bound to the rocks and soil as is proposed to exist by others.
The warming methods are many, and most have already been mentioned previously in this thread, so I will spare you from repeating those, unless you want to further discuss them.
Excellent maps have been provided by Josh previously in this thread which could help in visualizing the proposals of this post.
I have cross linked to my post on Radiotrophic organisms, since my answer is the same.