Sinclair Wynchank holds bachelor and higher degrees in physics (MA, D Phil [nuclear physics] - University of Oxford) and medicine (MB ChB, MD - University of Cape Town). He has also taught and researched there and at Columbia and Bordeaux Universities and the City University of New York. At the South African Medical Research Council he directed an institute that first introduced medical MRI to the southern hemisphere. His researches in nuclear medicine, physics/engineering applied to medicine, MRI, radiobiology, telemedicine/telenursing, and the history and sociology of medicine resulted in 133 publications, mainly on these topics and also nuclear physics. He has chaired the SA National Telemedicine Forum and has been President of the African Association of Nuclear Medicine. He has lectured in 25 nations and is the subeditor of one journal and a member of the editorial board of another. Cape Town is his home, where he is partially retired and continues with various consultancies.