Kurt Lewin said that there is nothing so practical as a good theory. Psychological theories are valuable for guiding practice in education, mental health, business, and other domains. They provide ...

The Greater Fool Theory involves overpriced securities finding buyers among hopeful investors. Understand its impact on investing and possible risks involved.

When asked the question, "What is a theory?" most of my students (regardless of age or educational level) respond with an explanation that is akin to "a reasonable, educated/informed guess." Indeed, ...

String theory might be the theory of everything… or a flawed framework for theoretical physics. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

For more than a century, scientists have wondered why physical structures like blood vessels, neurons, tree branches, and ...

Charles Darwin's Theory of Evolution is one of the most solid theories in science. But what exactly is it? When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Erika Rasure is globally-recognized as ...