RuBisCO

Here are my spreadsheet calculations. Consider an NSWR of 147 GW with a thrust of 5 MN and an Isp of 6000 s. It would have a total mass flow of 85 kg/s. If we assume an amazing fission efficiency of 90% while using a 2% uranium solution of 80:20 U235:U238, then only 0.224 kg/s of the uranium solution would be used, of which only 2 g/s of U235 is consumed. This means almost all of the 85 kg/s is water coolant, with some lithium salt and deuterium as well to provide fusion boosting, but that can be included in the uranium solution. Now the big question is: can 85 kg/s of water cool the nozzle and plenum chamber? This engine would produce 147 GW, which would heat the uranium solution as high as 46.3 x 10^6 Kelvin (assuming a heat capacity of 14.18 J/g°C for a plasma of 2 parts H and 1 part O). Fission of Lithium 6 and Lithium 7 to tritium, as well as T+D fusion, should be possible and can thus assist in the burn. I will assume this is occurring and is covered in that amazing fission efficiency of 90%. Now the rest of the 85 kg/s of water coolant would have an average temperature of 122,000 Kelvin, still a plasma that will vaporize anything. Obviously, the temperature is not the average of the water coolant at the nozzle and plenum chamber walls. Maybe, just maybe, we could get by with film cooling, having a thin layer of non-plasma water steam along the walls keeping the plasma from melting the walls. Otherwise, the only other solution is a magnetic nozzle. For a magnetic nozzle, we would likely need to switch to liquid hydrogen as coolant to cool the "high temperature" superconducting magnets. We would also still need film cooling as well. The advantage of liquid hydrogen is that our Isp would increase considerably. The average molar mass of water plasma is 6, and the average molar mass of hydrogen plasma is 1, so the specific impulse would increase by sqrt{6/1} or 14,697 s from 6000 s. Also, our thrust would decrease to 2 MN from 5 MN (with a mass flow now of 14 kg/s). This is not a problem considering that shrinking down an NSWR to 147 GW to begin with is likely asking a lot; we can expect terawatt NSWRs easily! The disadvantages of a magnetic nozzle include how to keep the high-temperature superconductors cool with all the heat from the continuous nuclear explosion, as well as neutron irradiation. Again, we would need to have film cooling with hydrogen gas as well as refractory materials that will not impede the magnetic field of the superconductors much. Next, hydrogen has very poor volume and mass density compared to water. Even with the superior Isp, the tanks for hydrogen would still be 5.6 times larger in volume than water tanks. Assuming spherical tanks, the surface area needed for hydrogen tanks is 3.1 times more than water tanks. Even still, 27 tons of water would need a tank of 27 m³ and would weigh 0.2 tons at 5 kg/m². This would be equivalent to 10.5 tons of LH2 in a 150 m³ tank that would weigh 1.4 tons at 10 kg/m². Either would provide a ΔV of ~3 km/s for a 500-ton spacecraft, so clearly even at that low ΔV, Hydrogen would still save ~15 tons, and the weight savings only goes ΔV goes up. In conclusion, a superconducting nozzle may be necessary to keep the plasma from touching the nozzle and plenum chamber walls. It would have the added benefit of using hydrogen fuel with higher Isp and reducing the minimum thrust an NSWR can provide. The extra tankage for hydrogen is negligible.

Yeah I only got ride of it after removing the whole glow.cfg file

Yeah so I go into it AstronomersVisualPack\AVP_Configs\Stock\Duststorms.cfg, removed all but Duna, restart the game... and its still there on Moho.

Weird problem: I'm seeing cloud effects on planets that should not have clouds, Mun, Moho, etc, is that normal?

FOUND IT! https://www.reddit.com/r/KerbalSpaceProgram/comments/11c4bc9/custom_flags_mod_guide/ 1. Download Space Warp Modloader by cheese3660 and unzip it anywhere. I had to disable Real-time protection setting on my Windows Virus & threat protection settings to download and run, so use at own risk. The modders on Discord and the forums have vouched for it, and I looked at the code myself. 2. Run the ksp2_mod_loader_patcher.exe to locate your KSP 2 folder and install the modloader. 3. Load up the game once and close it. 4. There should be a Mods folder in the Kerbal Space Program 2\KSP2_x64_Data folder.If you downloaded via Steam, it might be in: C:\Steam\steamapps\common\Kerbal Space Program 2\KSP2_x64_Data. 5. Download Custom Flags mod by adamsogm. 6. Unzip the contents of the folder into the Mods folder from step 4. It should just be a folder called custom-flags and everything inside it. 7. Create a folder in the Kerbal Space Program 2 directory called flags. See image below for example. 8. Place your 512x300 .png flag files inside.

I just want to start real simple at first: how to I install a new flag of my own design?

Anything hitting atmosphere will slow down: the masons, atomic fragments that can be magnetically funneled out an exhaust, produced in even the cleanest antimatter-matter reaction of anti-protons and protons while hit atmosphere before they decay, creating an explosion behind it of superheated plasma. Sure in the vacuum of space it will produce a beam that will decay into nothing as the masons eventually end up one way or another as gamma rays.

Now this is just my uneducated opinion as a biochemist and not a physicist but I suspect more holds asteroids together then gravity, electrostatic forces, mechanical adhesion (bits locking and hooking together), etc.

I'm still working on it, but it is based on this: https://kerbalx.com/RuBisCO/Mini-Hexopod

I assume this is already known but collision/clipping with rocks is intermittent and at random, sometimes crafts go through the rocks, sometimes they don't, not sure why.

I do like the idea, my dudes, of putting something in the coolant (ammonia?) that will clog and seal small holes.

Radiators? How would holes in radiators in space be plugged?

at ~50 km above the surface of Venus its like being in full sunlight on earth from all directions so you could put the solar panels on any surface, all around the balloon, even pointing straight down.

Really loving this mod!

Well never say never, remember there is now satellite services in which a symbiotic satellites docks to a rocket nozzle of the host satellite and then the symbiotic sat takes over the propulsion functions of the host.