Test Chamber (IMAGE) Washington State University Caption A 60 square-foot chamber inside a shipping container can test passive systems that use wind towers along with water evaporation instead of electricity to cool spaces. Credit WSU Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.