The 'Cool Brick' Can Cool Off an Entire Room Using Nothing But Water

ErnieKey writes: Emerging Objects, a company which experiments with 3d printing technology has created what they call the 'Cool Brick'. Using basic concepts of evaporation, it holds water like a sponge, takes in hot dry air and converts it into cool moist air. 3d printed with a specially engineered lattice using ceramics, it can be formed into entire walls which could be placed in different rooms of a house or building, thus replacing the need for air conditioning in hot, dry climates such as deserts.

Proven Concept

[Jim Sadler]

Less fancy versions already cool homes in hot, dry climates. A swamp cooler with rage saturated with water an do the job. One issue is that in those areas water is expensive and swamp coolers can use quite a bit of water.