A pair of identical particles swapping places sounds like a small move. In quantum physics, it is a defining one. In everyday ...

Curious Kids is a series for children in which we ask experts to answer questions from kids. What is the smallest thing in the universe that actually exists? – Mimi, 12, Abeokuta, Nigeria To find an ...

For the first time, scientists have observed quantum interference—a wavelike interaction between particles related to the weird quantum phenomenon of entanglement—occurring between two different kinds ...

Protons are tiny particles just a femtometer across, but without them, atoms wouldn't exist. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Physicist Richard Feynman invented them to describe the interactions between real particles. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.