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Science of Mundus
Topic Started: 21st February 2016 - 11:17 PM (362 Views)
Gadshack
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With Ach talking about doing an seas map and stating that the tips of Ardia and Albion aren't far from eachother, I decided to so some math and science stuffs!

Compared to RL earth, Mundus is essentially mars is size. Coming in a a circumference of 19,000 to maybe 25,000km while Earth sustains 40,000km in circumference.

Now, assuming Mundus is still made of the same density and sustains a balanced mass, the gravity would alot lower, for example someone could jump alot higher on Mundus. The planet's gravitational sphere of influence is also weaker, meaning Mundus may not even have the strength the hold a moon, and even if so, it wouldn't be anything big. For example think of mars which is roughly the same size of Mundus and much smaller than earth, for example the moon is 10,000 to 11,000 km around while while Mars two moons range from 40 to 80 km. Mundus would generally sustain earth-like years if we're dealing with the same sun at the same position in the solar system, Mundus would also have alot less 'ice' considering because it's smaller the sun would be able to hit most of the planet, so realistically Mundus wouldn't have large land masses and the pole ice caps would be smaller so to speak...The Climate could also be alot 'uncomfortable' because of all that sun ;-;

Just thought it was interesting to think over the science of Mundus :P we're essentially a Mars with life.
Edited by Gadshack, 21st February 2016 - 11:18 PM.
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The climate would be a lot more uncomfortable for us, but for the MundusiAnd it would be pretty normal, as they would have adapted to the hotter climates.



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considering because it's smaller the sun would be able to hit most of the planet, so realistically Mundus wouldn't have large land masses and the pole ice caps would be smaller so to speak


I may be wrong but I think that Earth's larger surface area would mean that it receives a greater solar irradiance and therefore absorb more energy, presumably if this were the case Mundus may be slightly cooler than the Earth. However that's not taking in to account atmospherics, it may be possible that for whatever reason Mundus has a denser atmosphere, or a higher proportion of greenhouse gases. Combine this with geography and it's perfectly possible for Mundus to be a warmer planet.

Incidentally I don't think the landmass size would be determined by this or by the size of the planet. I mean Mars' primordial ocean only filled about half the planet which means it was a 50/50 approx split between land a water, compare this to Earths 2/3rds ocean.

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Gadshack
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Mundus would hold less heat than Earth, however more sunlight would touch ice, then you factor is Mundus's exact position away from the sun as Earth is it's fairly possible more water could be present on the planet. Not saying that Mundus's ocean would fill 2/3rds of the planet but that the oceans would fill up a more significant portion than they do now. Essentially, all Mundus have are 'seas'...no big boy oceans :P But like you said, atmosphere plays a large role in all of this.

But I actually think you're mostly right about the thermodynamics of it, looking into it I was mistaken and smaller planets actually cool down faster, therefore release less geothermal energy but neglect capacity to retain enough heat. Once the core cools down, the magnetic field dies and more radiation hits the planet and bye bye atmosphere, think that's the theory behind Mars' death actually. So our RP world may be living in a brief period in which the planet may be habitable just for a tiny bit before things go south. Ofcourse I don't know how long this takes, Mundus could technically be dying right now.
Edited by Gadshack, 23rd February 2016 - 04:58 AM.
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Astetoth
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However Mundus appears to be quite geologically active, it could be possible to posit that Mundus contains a higher concentration of uranium in its crust than Earth leading to it being geologically active, if the activity was higher than on earth the atmosphere of Mundus could be explained by continuous replenishment with carbon dioxide etc. from volcanic activity.

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Gadshack
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Interesting, perhaps that could explain the large areas of Mundus that go uninhabited.

One thing is gravity, which in theory is largely proven to be determined by mass. Now to play with idea, let's replace Mundus's earth iron core with uranium, which weighs alot more and could increase gravity perhaps. What makes it even more fun is that Mundus could potentially be a ticking time bomb.
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I don't think it would be a ticking time bomb, presuming that the core was uranium and that uranium is undergoing decay, its risk of creating a runaway chain reaction would be in the past and become less likely as time progresses.

However if gravity was lower it would allow for steeper and taller mountain ranges.

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Gadshack
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Hmmm, considering Mundus has just about the same geography, such as the height and steepness of mountains, I think the gravity could on par with Earth's having a heavier full uranium core.

Perhaps a Mundus Science factbook could be in place? ;)
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I could go for a Mundusian 'conspiracy theory' type factbook, since that is essentially what this amounts to from an ICly point of view. I mean, it's not like there's no merit to any of this stuff, but we gonna carry on like earth rules apply regardless, bro :P

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As long as we are talking science we should look at psychology and sociology as well. I would estimate that 26% of the population are sociopaths or psychopaths. This can be evudenced by not only the prevalence of horrific charcters but byvthe rapid rise and fall of "nations" on mundus. I think these mentally unbalanced peoples come together fir a mutual goal, briefly. When that goal is met, the following struggle for dominance cause the grouping or nation to dissolve, often violently. Low gravity may help explain that as well.
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Gadshack
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Dijel
23rd February 2016 - 08:29 PM
I could go for a Mundusian 'conspiracy theory' type factbook, since that is essentially what this amounts to from an ICly point of view. I mean, it's not like there's no merit to any of this stuff, but we gonna carry on like earth rules apply regardless, bro :P
I'm just looking for a way to have Earth rules apply to Mundus is all, not like I'm trying to enforce anything :P
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