An inventor has presented a prototype cap that promises to eliminate heat on the head. Its brim, made of transparent resin using 3D printing, contains a system of capillary tubes. A small reservoir hidden in the crown pumps cold water that circulates through the brim, creating an active shade that cools the face.
Capillary engineering integrated into the visor 🧊
The design is based on a structure of internal channels less than a millimeter in diameter, printed in a single piece of resin. The reservoir, about 200 ml, is placed on the top of the crown and uses a silent micropump. The water circulates by gravity and capillarity, evaporating slightly at the ends of the brim to dissipate heat. The estimated autonomy is 90 minutes per water and battery charge.
The hat that drinks water for you 💧
The system is ingenious, but it has a small problem: if you forget to fill the reservoir, the cap becomes a simple hot plastic ornament. Additionally, when you lean forward to greet someone, you run the risk of watering your interlocutor with room-temperature water. Of course, if you are one of those who sweat just by thinking, this cap guarantees that the sweat will fall... literally in streams.