As we get older we sometimes begin to doubt our ability to "make a difference" in the world. It is at these times that our hopes are boosted by the remarkable achievements of other "seniors" who have found the courage to take on challenges. Harold Sclumberg is such a person. VERY INSPIRING!!! I've often been asked, 'What do you old folks do now that you're retired'? "Well… I'm fortunate to have a chemical engineering background, and one of the things I enjoy most is turning beer, wine, Scotch, and margaritas into urine".