The standard model of how the universe works involves the widely accepted theory that dark energy is a fundamental constant of nature that drives the accelerating expansion of the universe. But a new ...

"The Nature of Energy" (1949) explores various forms of energy and their applications in daily life and technology. It illustrates how energy, including muscular, electrical, chemical, heat, radiant, ...

The first part of this two-part series showed that not only is energy demand growing, energy is also increasingly electric and comes from renewable sources. This is changing the nature of energy ...