In Newton's classical mechanics, time played the role of a monotonically increasing evolution parameter. Einstein rejected the Newtonian concept and instead identified time as the fourth coordinate of a space-time four-vector. Today, scientists are considering different concepts of time as a means of resolving incompatibilities between relativity and quantum mechanics. Some view time as an emergent property of a system rather than a fundamental property, while others consider two temporal variables. The purpose of this book is to examine the role of time in modern physics so that the reader...

This unique compendium provides a fact-based analysis of the most prominent energy issues of our time. It covers the period when the Covid pandemic swept across the world and substantially altered energy production and consumption. It discusses lessons learned following the reopening of economies around the world, and recognizes that we are in the midst of the energy transition. Insights into key energy topics, such as the timing of the energy transition and the need for a reliable energy portfolio for national security, are included.Some highlights of the new edition include discussions of...

This unique compendium provides a fact-based analysis of the most prominent energy issues of our time. It covers the period when the Covid pandemic swept across the world and substantially altered energy production and consumption. It discusses lessons learned following the reopening of economies around the world, and recognizes that we are in the midst of the energy transition. Insights into key energy topics, such as the timing of the energy transition and the need for a reliable energy portfolio for national security, are included.Some highlights of the new edition include discussions of...