Outstanding book title
November 27, 2025 at 6:58 AM
Outstanding book title
Purely on the basis of correlation, I'm saying it comes with the facial hair.
November 27, 2025 at 6:17 AM
Purely on the basis of correlation, I'm saying it comes with the facial hair.
Mirror statites all around.
Dyson sphere but completely uninterested in power generation, I just think stars should keep their emissions to themselves.
Dyson sphere but completely uninterested in power generation, I just think stars should keep their emissions to themselves.
November 27, 2025 at 5:22 AM
Mirror statites all around.
Dyson sphere but completely uninterested in power generation, I just think stars should keep their emissions to themselves.
Dyson sphere but completely uninterested in power generation, I just think stars should keep their emissions to themselves.
Casually walking up to an object with *visible* gravitational lensing. What could go wrong?
November 20, 2025 at 4:33 PM
Casually walking up to an object with *visible* gravitational lensing. What could go wrong?
That persistence predator instinct never really goes away
November 18, 2025 at 7:02 AM
That persistence predator instinct never really goes away
Yes, I'm assuming some form of afterburner, which I know could technically use all sorts of things, but most likely (and to make the question simpler) would use hydrogen or water
November 13, 2025 at 11:14 PM
Yes, I'm assuming some form of afterburner, which I know could technically use all sorts of things, but most likely (and to make the question simpler) would use hydrogen or water
Subsapient has pointed out my error. The hot plasma is still emitting visible light, it's just outweighed by the non-visible emissions (which matches the EuroFusion link when I re-read it)
So definitely a bright light in the nozzle, and probably at least some glowing plume like other plasma rockets
So definitely a bright light in the nozzle, and probably at least some glowing plume like other plasma rockets
November 9, 2025 at 3:38 PM
Subsapient has pointed out my error. The hot plasma is still emitting visible light, it's just outweighed by the non-visible emissions (which matches the EuroFusion link when I re-read it)
So definitely a bright light in the nozzle, and probably at least some glowing plume like other plasma rockets
So definitely a bright light in the nozzle, and probably at least some glowing plume like other plasma rockets
I think you're right. I reread the EuroFusion link, they don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's a light inside the nozzle, and probably at least some visible plume too
November 9, 2025 at 3:20 PM
I think you're right. I reread the EuroFusion link, they don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's a light inside the nozzle, and probably at least some visible plume too
Wait, I'm re-reading the link euro-fusion.org/FAQ/where-do...
They don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's at least a light inside the nozzle.
They don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's at least a light inside the nozzle.
November 9, 2025 at 9:02 AM
Wait, I'm re-reading the link euro-fusion.org/FAQ/where-do...
They don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's at least a light inside the nozzle.
They don't say the hottest part isn't emitting, just that there's less light, and the cameras are having to deal with a huge dynamic range. So I think you're right, there's at least a light inside the nozzle.
Even though the hottest part of the plasma in the tokamaks isn't emitting anything visible?
If you're right, then that would at least mean a bright light inside the nozzle, though I don't know about the visibility of the plume.
If you're right, then that would at least mean a bright light inside the nozzle, though I don't know about the visibility of the plume.
November 9, 2025 at 9:01 AM
Even though the hottest part of the plasma in the tokamaks isn't emitting anything visible?
If you're right, then that would at least mean a bright light inside the nozzle, though I don't know about the visibility of the plume.
If you're right, then that would at least mean a bright light inside the nozzle, though I don't know about the visibility of the plume.
We could still justify that for the ISVs from Avatar, which I'm pretty sure are afterburning pion rockets, by saying that some of the antimatter is still reacting in the plume rather than the nozzle (though that has terrible implications for the unshielded craft right next to the plume)
November 9, 2025 at 12:03 AM
We could still justify that for the ISVs from Avatar, which I'm pretty sure are afterburning pion rockets, by saying that some of the antimatter is still reacting in the plume rather than the nozzle (though that has terrible implications for the unshielded craft right next to the plume)
Probably yes, but in this case I'm concerned with what a regular human eye can see
November 8, 2025 at 11:41 PM
Probably yes, but in this case I'm concerned with what a regular human eye can see
In that case the visual cue of a drive turning on would be the increase in glow from the radiators
November 8, 2025 at 10:24 PM
In that case the visual cue of a drive turning on would be the increase in glow from the radiators
Interesting possibility raised over on Mastadon:
Maybe nothing visible at all. No plume, and nothing inside the nozzle.
Inside the nozzle, the bremsstrahlung radiation is x-rays, and the hot plasma is invisible.
It's only when it cools that it glows, but by then it's too dispersed for our eyes.
Maybe nothing visible at all. No plume, and nothing inside the nozzle.
Inside the nozzle, the bremsstrahlung radiation is x-rays, and the hot plasma is invisible.
It's only when it cools that it glows, but by then it's too dispersed for our eyes.
November 8, 2025 at 10:24 PM
Interesting possibility raised over on Mastadon:
Maybe nothing visible at all. No plume, and nothing inside the nozzle.
Inside the nozzle, the bremsstrahlung radiation is x-rays, and the hot plasma is invisible.
It's only when it cools that it glows, but by then it's too dispersed for our eyes.
Maybe nothing visible at all. No plume, and nothing inside the nozzle.
Inside the nozzle, the bremsstrahlung radiation is x-rays, and the hot plasma is invisible.
It's only when it cools that it glows, but by then it's too dispersed for our eyes.
Hey, I still appreciate it!
November 8, 2025 at 10:10 PM
Hey, I still appreciate it!
November 8, 2025 at 8:15 PM
Didn't know it was intended as a jab. For goofiness, maybe more chibi proportions like Periapsis: Eclipse is doing?
November 8, 2025 at 4:28 PM
Didn't know it was intended as a jab. For goofiness, maybe more chibi proportions like Periapsis: Eclipse is doing?
I do think the names are maybe not a great fit for the UNSC, but on the other hand I really like the names themselves.
"In Amber Clad," "Forward Unto Dawn," and "Pillar of Autumn" are gorgeous
"In Amber Clad," "Forward Unto Dawn," and "Pillar of Autumn" are gorgeous
November 6, 2025 at 5:23 AM
I do think the names are maybe not a great fit for the UNSC, but on the other hand I really like the names themselves.
"In Amber Clad," "Forward Unto Dawn," and "Pillar of Autumn" are gorgeous
"In Amber Clad," "Forward Unto Dawn," and "Pillar of Autumn" are gorgeous
Could've gone with an air cushion like the De Havilland XC-8A. Then it could touch down on land too, and probably have less drag while cruising
November 1, 2025 at 5:39 AM
Could've gone with an air cushion like the De Havilland XC-8A. Then it could touch down on land too, and probably have less drag while cruising
Thank YOU for the idea
October 31, 2025 at 10:44 PM
Thank YOU for the idea
The Direct Fusion Drive also doesn't have tapered radiators. They seem to treat the body of the engine as fully shielded, though I don't know about the exhaust plume
October 30, 2025 at 9:22 PM
The Direct Fusion Drive also doesn't have tapered radiators. They seem to treat the body of the engine as fully shielded, though I don't know about the exhaust plume