A plastic film that might replace your air conditioner
For hundred years we’ve been using these mechanical systems called air conditioners to remove heat and humidity from buildings. It was one of many revolutionary technologies to come out of the twentieth century. Because of air conditioning, hot and humid places have far higher populations than they would have otherwise.
To suppress the need for temperature modulating utilities, which are not only harmful to the environment but also consume a lot of energy, researchers have developed a material, which could be used by architects and contractors to insulate building, which radiates heat away at night and also during day. And it does so with an impressive cooling capacity.
The film and microspheres, together called a ‘ metamaterial’, make up one part. It doesn’t absorb solar radiation, instead reflects the sunlight back out preventing whatever is behind the film from heating up.