When you drink a nice refreshing glass of water, do you ever think, "Gee, I'm glad that polymeric desalination membrane did its job!" Probably not, but maybe you should. Those thin polyamide, or ...

When you drink a nice refreshing glass of water, do you ever think, "Gee, I'm glad that polymeric desalination membrane did its job!" Probably not, but maybe you should. Those thin polyamide ...