Read about the challenges of global energy use and consumption, and what solutions exist for today's engineers.

Confused about the difference between power and energy? Read this explanation to deepen your understanding.

From the Glenn Research Center at NASA, read about the law of conservation of energy. Included are formulas and many links to key terms.

Southern Red-backed Voles, like other voles, are active year-round. They do not hibernate or reduce their metabolism and enter a state of torpor to conserve energy against the cold. Learn more about the Clethrionomys gapperi, more...