During chemical reactions, atoms in the reacting substances break their bonds and re-arrange, forming different chemical products. This process entails the movement of both electrons (i.e., negatively ...

August 28, 2025 • NPR was a pioneer and still has several shows in the top 10, but the podcast ecosystem is changing quickly.

PDF files have become ubiquitous in our multi-platform world. This convenient file format makes it possible to view and share documents across various devices using various operating systems and ...

Atom optics is the study of the wave-like properties of beams of atoms. Wave–particle duality — a central principle of quantum mechanics — implies that effects traditionally associated with waves, ...

Stephen Engelberg was the founding managing editor of ProPublica from 2008-2012 and became editor in chief on Jan. 1, 2013. He came to ProPublica from The Oregonian in Portland, where he had been a ...

Shelby Putnam Tupper is founder and creative director of Shelby Designs Inc., a small-but-mighty, full-service, customer-obsessed design consultancy.

Steve Forbes is Chairman and Editor-in-Chief of Forbes Media. Steve’s newest project is the podcast “What’s Ahead,” where he engages the world’s top newsmakers, politicians and pioneers in business ...

If you’ve ever used a 3D printer, you may recall the wondrous feeling when you first printed something you could have never sculpted or built yourself. Download a model file, load some plastic ...

The Doomsday Clock is a design that warns the public about how close we are to destroying our world with dangerous technologies of our own making. It is a metaphor, a reminder of the perils we must ...