Comparing and visualizing common forms of energy What's a kilowatt-hour? Although we still don't know what energy is at its most...

Defining the usefulness of energy and resources. In order to understand exergy, we must first understand energy. Energy is all around...

A very basic primer on one of the most important branches of science. Thermodynamics is a branch of physics that deals with heat, work,...

Maximizing the usefulness of energy to get what we want Often, entropy is colloquially misunderstood as mere chaos. However, this concept...