Work of breathing Work of breathing Work of breathing (WOB) is the energy expended to inhale and exhale a breathing gas. It is usually expressed as work per unit volume, for example, joules/litre, or as a work rate (power), such as joules/min or equivalent units, as it is not particularly useful without a reference to volume or time. It can be calculated in terms of the pulmonary pressure multiplied by the change in pulmonary volume, or in terms of the oxygen consumption attributable to breathing. In a normal resting state the work of breathing constitutes about 5% of the total body oxygen consumption.
The Quest: Energy, Security, and the Remaking of the Modern World The Quest: Energy, Security, and the Remaking of the Modern World The Quest: Energy, Security, and the Remaking of the Modern World is an international bestselling book by energy expert Daniel Yergin. The book was initially published on September 20, 2011 through Penguin Press and is considered to be the follow-up to Yergin’s 1992 Pulitzer Prize winning history of oil, "", and describes the development of the current energy system and prospects for the future. Upon its release, the book received praise and criticism both for its breadth of subject as well as for its impartiality. It is often suggested