JOHN JELLINEK is a retired mechanical engineer. He began his scientific career at Emerson Research Laboratories and Johns Hopkins Applied Physics Laboratories in heat transfer, and expanded it at B...ver másJOHN JELLINEK is a retired mechanical engineer. He began his scientific career at Emerson Research Laboratories and Johns Hopkins Applied Physics Laboratories in heat transfer, and expanded it at Bellcomm, Inc., to space rescue and lunar transportation vehicles. Since his retirement from engineering at the US Army-Tank Automotive Command, he has devoted himself writing and jewelry making.ver menos