Understand rotational motion in a clear, intuitive way with a lesson designed to stick with you forever. This video breaks down angular velocity, torque, and rotational inertia using simple ...

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

Depending on how you look at it, this catchphrase from a 1980s pop song is decently accurate: you can actually melt the ...

Discover how the equation of exchange links money supply, velocity of money, and price levels, influencing inflation and economic activity. Learn key formulas and impacts.

Alexandra Twin has 15+ years of experience as an editor and writer, covering financial news for public and private companies. Vikki Velasquez is a researcher and writer who has managed, coordinated, ...

Host Scott Detrow curates NPR's reporting, analysis and updates on the 47th President, focusing on actions and policies that challenge precedent and upend political norms, raising questions about what ...