Bob Opaluch designed and built a passive solar home in Colorado, renovated two homes in Massachusetts, built furniture, and has a lifetime of experience helping family and friends update and repair their homes. His teaching experience includes leading courses in Sustainable Architecture, Building Science, Human Factors Engineering, computer science, and a wide variety of courses in psychology. Bob has bachelor degrees in applied mathematics and in philosophy from Brown University, and an MS and PhD in psychology from UCLA. He was a psychology professor for five years, and a software and web site usability and design engineer for 20 years.