the.com/convection
Heat refusing to wait in line, hitching a ride on moving fluid instead.
means The transfer of heat by the actual motion of a fluid, where warm material rises and cool material sinks in a self-stirring loop.
from From Latin convehere, to carry together — heat literally hauling itself across the room.
Soup proofThat rolling boil is convection made visible.
Weather engineThunderstorms are convection throwing a tantrum.
Oven trickThe fan version cooks faster by forcing the loop.
Planet scaleEarth's mantle convects, dragging continents along.