the.com/heat sink
A metal babysitter that calms down electronics before they throw a tantrum.
means A component, usually finned metal, that draws heat away from an electronic part and disperses it into the surrounding air so the part doesn't overheat.
from A straightforward compound from engineering usage: 'sink' here means a place where something is absorbed or drained away, the opposite of a 'source' — the same sense found in 'heat sink' kin like 'carbon sink.' The term entered electronics vocabulary as transistors and circuits proliferated and needed a word for 'where the unwanted heat goes.' No myth required — it's a plumbing metaphor, heat draining away like water down a basin.
- how it works
- spreads heat over more surface area to cool faster
- shape logic
- fins exist to touch more air, not look cool
- fails silently
- dust buildup turns it into a blanket instead
- used everywhere
- CPUs, LEDs, car engines, and your laptop's sad fan