A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops.

Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

Researchers have identified elusive DNA switches in brain support cells that influence genes tied to Alzheimer’s disease. When people think about DNA, they often picture genes that determine our ...

Cancer has long been treated as a mass of rogue cells, but the real power lies in the intricate communication networks ...

What's CODE SWITCH? It's the fearless conversations about race that you've been waiting for. Hosted by journalists of color, our podcast tackles the subject of race with empathy and humor. We explore ...