Most thermoelectric tricks send heat straight up or down the line, but the newly measured transverse Thomson effect lets it sneak out the side door. We’ll recap the classic Seebeck‑Peltier‑Thomson trio, hop into a heavy‑ion collider where magnetic fields crank the effect up to eleven, and meet the record‑breaking composite magnet that finally turns this sideways sizzle into real power. Expect practical dreams (hello, cooler satellites) and a few geeky giggles—all in one tight, curiosity‑charged sprint.
