New manufacturing techniques could improve heat exchangers in everything from air conditioners to massive ships.

[Josh’s] apartment doesn’t have central air conditioning — the kind that connects to a forced-air heating/cooling system. It does, though, have a water ... the heat exchanger turns out ...

the heat exchanger is intended to cool transmission oil on military helicopters by using fuel as the coolant. Looking somewhat similar to a Fabergé egg, it uses gyroid “infill” for the actual ...