Alex Duthie, a Professional Engineer (PEng), has spent fifty years working as a mechanical engineer in industries like automotive, aircraft, nuclear, and entertainment. His true pa...view moreAlex Duthie, a Professional Engineer (PEng), has spent fifty years working as a mechanical engineer in industries like automotive, aircraft, nuclear, and entertainment. His true passion lies in understanding how things function. Married for fifty-four years to his first wife and raising four children, Alex has now remarried and resides in Kincardine, Ontario, Canada.view less