Dzhanibekov Instability 02: this is how much mass has to redistribute for Earth to reach the intermediate axis condition.. our current gap between the maximum and intermediate principal moments is 2.6 e35 kg m^2 this means we’d have to redistribute 3.2 e21 kg at the surface, or 1 e22 kg at the CMB away from the intermediate axis at 75°E / 255°E toward our current rotational axis. And, reaching this configuration is only step 1. Using Earth’s current principal moments, the natural Dzhanibekov growth time is still 590.6 days, so we need to know what changes that timescale once the tensor is redistributed.

Working on a new test of the Dzhanibekov part of ECDO. Earth currently spins near its maximum inertia axis, C, so it’s stable. A Dzhanibekov instability requires the spin to approach the intermediate axis. So, how much mass redistribution would be required to change the inertia tensor enough to make that happen? I’m using the same tomography models and LLSVP geometry from my preferred axis work.

GCS surface model 03: I love talking to Ben (@SunWeatherMan ), he has a way of spotting the piece I’m missing and making the whole thing click. I was showing him the GCS model and he caught two geometry assumptions I had wrong: 1) the sheet should stay parallel to the Galactic plane, and 2) the spiral should originate from the Galactic center. I rebuilt the surface with those corrections, and the modeled reversal surface moved much closer to us. Next up: rerunning the timing model to see when we intersect it again (it's in the 2040s) details: stephanieskystory.com/resear… btw members at catastrophism.org get access to conversations between Ben and me, including this one.

GCS surface model 02: In Ben’s (@SunWeatherMan) hypothesis, we first move into the outer part of the GCS, where the density of dust and plasma starts increasing. As we move farther into it, we eventually reach the magnetic reversal (null) and that's the part that triggers the solar micronova. The goal here is to eventually predict when the next solar micronova will be.

EM Solver Update 09: I spent about a week on Phases 1 and 2 and felt pretty good about where we were. Then Phase 3 happened… and here we are, two months later. :) So, let's talk about where we are in development! We've been trying to understand why the solver is converging slowly, and we've now ruled out several approaches and getting soooo close. I'm putting together a 20 minute research briefing with Q&A at the end. And you can ask me about ANYTHING. Even where I'm planning to move and build a tribe… because I really do want some of you as neighbors. ❤️ Two ways to join! Included with membership at catastrophism.org or stephanieskystory.com/servic… Animation shows the Krylov state which is basically the solver's working memory.

EM Solver Update 08: We're getting close.. The low degree part of the solver is now stable (!), but the physical response doesn’t stay there, it spreads strongly into higher magnetic field modes. So, I built a correction that uses that extra mode structure and that correction is now fully qualified. My next 12 hour test will be to run the real reduced solver side by side, with and without it, and see if it actually improves convergence. If it does, we’re finally getting very close to the part I’ve wanted to calculate from the beginning: currents -> Joule heating -> the 4- 6 km ocean layer. details: stephanieskystory.com/resear…