I have 63 years of post-doctoral experience. I am a true generalist. I am 50% scientist and 50% engineer. I have worked on an extremely wide variety of technical problems over the years and I have wide knowledge of things technical. I have a solid grounding in chemistry and physics and did fundamental work in these sciences for many years, publishing numerous papers in peer-reviewed journals. In the second half of my career, I worked on more applied problems, particularly in space technology and space mission design. I have been a recognized leader in ISRU technology. I am an expert in requirements, architectures and transportation systems for space missions, with particular emphasis on impact of in situ resource utilization, and water resources. I have surveyed the wide field of global climate change and its relationship to energy consumption and I am familiar with the entire literature of climatology. I am also knowledgeable on energy systems and thermodynamics. I am known far and wide in the NASA community as for my abilities to plan, organize and lead studies of broad technical systems. My services have been often sought in writing and reviewing major proposals for space ventures. I was proposal manager on two major winning spacecraft proposals (Genesis and Deep Impact) that brought in $500 million. I also wrote a number of winning smaller technology proposals.
More than 70 publications in refereed journals, plus numerous informal in-depth reports. One paper received more than 1,800 citations, and another received more than 800 citations. More than a dozen of my papers received more than 100 citations. (A paper is influential with > 10 citations).