The Azimuth Project


A windcatcher or bad gir is a natural cooling system based on the Bernoulli effect. Here is a photograph of a bad gir taken by Greg Egan in the city of Yazd, Iran:

A windcatcher is especially effective in conjunction with a qanat: an underground water tunnel, commonly used for irrigation in the Middle East. Here is how people combine a qanat and a windcatcher:


category: energy