Cloud Cast is a personal cooling system designed for very hot climates . Ultrasonic sensors recognize visitors and activate hydro-valves and LEDs in proximity to the target . Outside temperatures might reach 50 degrees Celsius , ( 122 degrees Fahrenheit ) but inside its public buildings the temperature can be so low that people wear jackets . The water cools down, but not as fast as air would do The UAE is experimenting with many traditional solutions to air-conditioning , including wind towers that funnel upper currents of cool air .
Cloud Cast is a personal cooling system designed for very hot climates . Ultrasonic sensors recognize visitors and activate hydro-valves and LEDs in proximity to the target . The water cools down, but not as fast as air would do The UAE is experimenting with many traditional solutions to air-conditioning , including wind towers that funnel upper currents of cool air .