I learned to respect friction, as a phenomenon with many nuances, when I was a graduate student. One day, while teaching a problem session in elementary mechanics, I unwisely invented a new problem to ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Katie Okamoto Katie Okamoto is an editor focusing on sustainability. She’s ...

The Uniform Simultaneous Death Act streamlines inheritances by determining asset distribution for deceased individuals ...

You probably don't put much thought into brushing your teeth. If you use an electric toothbrush, you assume it's getting your teeth cleaner than a manual toothbrush. However, there are better ways to ...

Engineering Mathematics: Even though engineering is more varied than ever in 2026, some mathematical principles are still applicable. Calculus (including Differential Equations) and Linear Algebra are ...

Artificial Intelligence is everywhere, from shopping assistants on Amazon, to replacing search engines like Google. While ChatGPT might make it easy to put together a shopping list or travel plans, it ...

As an academic discipline, logic is the study of reasoning. Logic puzzles, therefore, involve solving problems by making a series of inferences and assessing these using reasoning. Sounds easy, right?

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...

Is innovation inherently a hit-or-miss endeavor? Not if you understand why customers make the choices they do. by Clayton M. Christensen, Taddy Hall, Karen Dillon and David S. Duncan For as long as we ...

I’ve been writing about technology since 2012, focusing on privacy. With companies vying for user data, AI skimming it for tools, and countless bad actors seeking to exploit it, safeguarding the ...