Cellulose Based Steam Generator Low (IMAGE) Linköping University Caption The heat from the sun vaporises the water, while salt and other materials remain behind. Credit Thor Balkhed Usage Restrictions connected to news from LiU License Licensed 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.