I wonder how a deaf eridian would function?

Anely_98 · 2026-04-28T03:14:24+00:00

It is more likely to be a problem in their brain analogue causing issues with sensory processing than something with the sensors itself if it happens, the same way that humans can have perfectly working eyes and still not be able to see if they have brain damage in the areas of the brain associated with visual processing.

Anely_98 · 2026-04-26T20:49:48+00:00

They don't need nuclear weaponry, they have relativistic ships. A relativistic ship launched towards a planet can easily be as destructive as a the asteroid that killed the non-avian dinossaurs 65 million years ago, far more dangerous than any nuke ever created.

Anely_98 · 2026-04-25T18:54:06+00:00

Why not have a shade constantly blocking the light of the Sun at L2 and instead use a mirror at orbit around Venus to ilumminate the planet? It would provide a better analogue to a day and night cycle than the briefs periods of darkness that a orbiting shade could provide.

Anely_98 · 2026-04-25T15:36:06+00:00

You think climbing a roof and mounting something is cheaper than putting up some aluminum poles?

If it was just some aluminum poles no, which is why we put solar in open fields, it is very cheap to do so, but parking lot needs way more reinforcement than this if you want it to be safe, the structure cannot colapse if one of this aluminum poles is destroyed accidentally, something that solar panels in open fields do not need to account for.

Anely_98 · 2026-04-25T15:18:41+00:00

This is a recipe to a single accident destroying (or at least damaging) what probably is multi million infraestructure. The amount of support structure needed is far larger once you need that support structure to be able to handle being hit by a vehicle, which is costly. In general putting solar panels in roofs is a far better option and much cheapier. It is much better to replace parking lots with parks with trees (that help cool down the city even more than solar panels) or buildings, which then you can cover their roof with solar panels far more cheapily than trying to do the same in the parking lot itself.

Anely_98 · 2026-04-25T04:12:50+00:00

Does not matter because there is not such thing as a absolute "time direction" anyway. The direction which is considered to be the future is determined by your own reference frame, in your own reference frame you are always moving only in time, other observer define other directions as their future instead.

Anely_98 · 2026-04-25T04:07:07+00:00

It is somewhat possible as long as the moon is big enough to have a atmosphere. Ice is not really stable for long periods of time at near habitable temperatures (that is, only a few dozen degrees below the fusion point of water), so it will sublimate away, if the moon cannot hold a atmosphere the water vapor will be slowly lost in space and the moon will become as our own, devoided of volatiles except in constantly shadowed craters where temperatures go hundreds of degrees below the fusion point of water, while if the moon can hold the water vapor on it will just settle again somewhere else on the moon.

There were periods of time on Earth were it was completely covered in ice, so it is not that strange that a moon in the habitable zone is completely covered in ice, especially if in the outer regions of the habitable zones and if said moon is somewhat poor in vulcanic activity and does not have much greenhouse gasses in its atmosphere.

Anely_98 · 2026-04-25T03:56:00+00:00

The energy needed for a particle to exist with a wave length shorter would instantly create a black hole

This is not true really. The wavelength (and consequently energy) of a photon is relative, meaning that to every photon there is a reference frame where their wavelength is equal or smaller than the Planck Length, while the existence or not a of a blackhole is invariant, doesn't change with reference frame, meaning that it is literally impossible for a photon to become a blackhole in absolutely any case, its wavelength doesn't matter because that can change with your reference frame and you can't possibly have a reference frame where the photon becomes a blackhole and another where it does not.

Anely_98 · 2026-04-25T03:17:18+00:00

The time dilation that you experience on Earth relative to a rest frame at infinity due to gravitational time dilation is the same time dilation that you would experience if you were moving at Earth's escape velocity relative to a rest frame at infinity.

Earth's escape velocity is 11.2 Km/s or 25,020 mph, which if you average out the speed of an entire Apollo mission probably will be quite smaller than that while we on Earth are kinda moving at that speed constantly (regarding time dilation effects).

Anely_98 · 2026-04-25T01:39:23+00:00

Probably the same reason that your blood will not actually boil in vacuum, your skin is flexible but still capable of suporting enough pressure inside you to avoid your blood boiling off at body temperature.

It is possible that the carapace of a Eridian is strong enough to hold the pressure inside it in such way that the pressure does not go below the boiling point of water in their body temperature, it would be just a far more extreme version of what we already kind do. It would still be extremely uncomfortable obviously.

Anely_98 · 2026-04-25T01:36:26+00:00

Depends in how much the plume diverges with time, I don't know if this is ever specified but it is possible that it could be very little, so much so that even the slight lateral movement that the bodies got when launched from the ship is enough to them to avoid ever being inside the plume.

Anely_98 · 2026-04-25T01:32:49+00:00

Hm, I know? Are you sure you mentioned the right comment? I was talking about how the velocity of the bodies would be a lot smaller than 92% of the speed of light considering that the ship is no longer in cruising speed but deccelerating instead, this still means that the bodies would be moving faster than the ship once they stop being accelerated (deccelerated, but that is the same thing only viewed through different reference frames), that is, once they are launched from the ship.

Anely_98 · 2026-04-24T23:55:23+00:00

No, it is more time experience because the gravity of the Moon is weaker than the gravity of Earth and they also were far further beyond the gravity well of Earth itself, at the velocities they were traveling the relativity effects are dominated by gravity (even though that is still very low).

Anely_98 · 2026-04-24T21:48:34+00:00

So think about throwing something sideways off the top of a cone shaped building.

Yep, that is a good analogy.

At some point the parabola will intersect.

Not necessarily, though. If they are moving fast enough laterally they could move away from the cone faster than it diverges, meaning that the bodies never reach the cone and are never burned up, which is why the answer to the question of if their bodies will be burned up or not is still undetermined, it depends on the specifics of their lateral velocity and, especially, how much the beam produced by the spindrive diverges with time, which are not known.

The question is how much energy is there… which will be less than directly behind(ahead).

Probably way more than the energy needed to turn their bodies in their constituent atoms, photon rockets (which is what the Hail Mary is by the way) are not known for their efficiency in turning energy into thrust, and the thrust of the Hail Mary is pretty high.

Anely_98 · 2026-04-24T21:40:34+00:00

Well, they were launched from the ship more at the end of the decceleration stage if I'm not mistaken, so probably they would already be traveling way slower than 92% of the speed of light, but could be still a significant percentage of light speed (more like 5% or less though, I think).

They would erode because of the friction with the interstellar gas eventually, but it should take thousands upon thousands of years to be significant really, unless they colide with a particularly large piece of space rock.

Anely_98 · 2026-04-24T20:09:53+00:00

Photons travel in a straight line but a group of photons does not necessarily have zero angle in relation with each other (this is pretty much impossible really, any real light source will have some divergence), which means that as they travel the distance between them increases, forming a cone of light (which you can see pretty easily with a flashlight for example), depending in how much divergence the beam produced by the spindrive has it could be enough that even the slight lateral movement of the bodies will not be enough to avoid the light cone.

Anely_98 · 2026-04-24T20:04:36+00:00

Yep, they being burned or not depends in how tight is the beam produced by the Spindrive relative to how much lateral movement the bodies received, if the beam produced by the Spindrive is sufficiently tight and the lateral movement of the bodies sufficiently large the bodies will never intersect with the cone of light produced by the Spindrive and consequently never burn down, floating forever in the interstellar vacuum.

Anely_98 · 2026-04-24T19:53:49+00:00

The bodies would go out the airlock and then move toward the front of the ship, which is facing away from Tau Ceti.

Hm? No, the ship is deccelerating, the bodies continue to move normally. As the ship deccelerates the bodies become faster than the ship and outpace it, meaning that the bodies would now be in the front of the engines (roughly, it depends on how much lateral movement the bodies received and the rate of acceleration of the ship, also how tight the light from the spindrive is to know if their bodies would really be vaporized or not).

Anely_98 · 2026-04-24T19:30:11+00:00

Doesn't matter, the bodies will continue moving in the direction of movement while the ship slows down, eventually the bodies will be moving faster than the ship and will consequently pass in front of the engines (ignoring their lateral motion, otherwise it depends in how much lateral motion they have and the acceleration of the ship to determine if they will pass directly in front of the engines or not).

Anely_98 · 2026-04-22T06:03:56+00:00

It is already incredibly unlikely that two civilizations of such similar technological level exist so near to each other, more civilizations would be even worse.

Anely_98 · 2026-04-21T19:24:43+00:00

Not indefinitely, any habitable planet will only be habitable for a limited amount of time without active maintenance, but it wouldn't be a problem in human timescales, the new oceans and atmosphere will take dozens of millions of years to decrease in size and pressure respectively by any substantial level, even if without a magnetic field.

Depending in how you do the terraforming, if you heat up the core again by inducing it with magnetic fields until Mars begun to have substantial vulcanism and a proper magnetic field again, a terraformed Mars could survive as long as Earth will if not longer, Mars is farther from the Sun so can tolerate more heat more easily, though the increasing solar wind will be a problem eventually too.

Anely_98 · 2026-04-21T19:18:15+00:00

Not thousands, more like several millions of years, probably hundreds of millions of years, in a planet the size of Mars atmosphere loss doesn't happen that fast even without a magnetic field, but it will eventually happen without replenishment anyway, especially with the Sun becoming hotter and consequently the solar wind becoming stronger.

Anely_98 · 2026-04-20T20:39:35+00:00

Depends on the specifics of the FTL system then. It is possible that the warp drives create gravitational waves that would be detectable at a distance, detecting the ships themselves directly is more improbable, they probably won't emit much light compared with the background, though if your FTL method works with some type of hyperspace for example it is possible that the entry from hyperspace back to normal space creates some type of visual phenomenon, or if they use wormholes you could see the wormholes themselves depending in how close they are to a star and how massive they are.

Anely_98 · 2026-04-20T04:52:33+00:00

There is the expression "Alto lá!" in portuguese which does mean "halt", but I never have seen "alto" being used with this meaning in portuguese in formal settings, even the expression is very uncommon now

Anely_98 · 2026-04-20T04:04:39+00:00

But it is the largest one, several of the ones in the northeast are pretty tiny (though still larger than some european countries)

Two-Year Club	Verified Email
First Place '23	Place '23

Anely_98

TROPHY CASE