Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

New Scientist Book Club has been reading Alex Foster’s debut novel, Circular Motion, in which he charts what would happen if Earth’s rotation sped up by not just a millisecond, but a minute, or an ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

A food web is a detailed interconnecting diagram that shows the overall food relationships between organisms in a particular environment. The simplest explanation is that food webs are "who eats whom" ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who ...

B corporations blend for-profit goals with rigorous social and environmental standards. Certification requires at least 80 points in an impact assessment and legal structure that maintains standards.

These everyday phrases signal real intelligence, lower ego, clarify goals, surface trade-offs, and turn conversations into ...

Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.

Some of yoga’s many potential benefits include improved flexibility, strength, and body awareness. It may also help relieve stress and anxiety. The word “yoga” comes from the Sanskrit root word “yuj,” ...

A financial security is a tradeable asset that holds monetary value. There are many types of financial securities, often just referred to as “securities,” which range from somewhat risky to nearly ...