The term entropy is used in information theory as a "measure of the uncertainty associated with a random variable" and refers to an axiom called the Shannon Entropy. The concept was introduced by ...

Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Thomas J Catalano is a CFP and Registered Investment Adviser with the state of South Carolina, where he launched ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or two to tell you about fascinating ideas from their corner of the universe.

Thermodynamic spontaneity—whether a reaction can go—can be measured by changes in either of two parameters: entropy or free energy.

Science popularization has its legends and heroes, just like any other field, though I’ve heard no plans as yet to open a Hall of Fame. Should that day come, one of the first inductees would ...