Spider Web Construction Physics (2D)

This 2D companion follows the same orb-weaver build order as the 3D version — frame, radial spokes walked out from the hub, then an outward capture spiral — but renders it on a plain canvas built for reading the physics rather than orbiting a scene, and adds a real dew-formation model the 3D scene only animates. A side panel exposes weaving speed, spoke count and web radius alongside air temperature and relative humidity; a live readout tracks the true arc length of silk laid down (not a counter), an estimated per-spoke tension from a uniform-load spoke-wheel model, and — once the spiral is finished — a Magnus-Tetens dew point compared against a silk temperature that cools toward the air by radiative loss over several seconds. Push humidity low or temperature high and the dew point drops out of reach: the strands finish the cooling window still dry, exactly like a morning with no visible dew, because condensation here is decided by the numbers, not a timer.