Researchers demonstrated their technology on the rooftop of a building at MIT with boxes that were four inches (10 cm) across and could easily be mistaken for a solar panel. The devices they made consist of three layers of material that perform the dual role of cooling water as well as letting heat pass through. The cooling thus achieved could be used to store food for 40 percent longer under humid conditions and thrice longer under dryer conditions, a press release claimed. The cooling system could also be used for storing food.Read Long Article
