Irises at the home of a nuclear engineer in the wilderness of the Cascade Mountains in Washington State, USA. Issue 2019 - 4 Hello students, parents, friends and colleagues in 120 countries. This newsletter is dedicated to the public around the world - you, your family and friends so you may have a better life with plentiful energy. Professor Peter Lang, Crawford School of Public Policy at the Australian National University in Canberra writes: "Energy is the lifeblood of modern civilization. Humans would still be hunter-gatherers if not for our ability to extract and use energy. Major advances in human wellbeing 1