This tutorial explains how magnetic resonance imaging (MRI) systems use the reaction of hydrogen atoms moving in a magnetic field to yield a detailed medical image. The types of magnetic fields ...

We’ve probably all used gears in our projects at one time or another, and even if we’re not familiar with the engineering details, the principles of transmitting torque through meshed teeth are pretty ...

Magnetic nanoparticles are a class of nanomaterials that exhibit magnetic properties at the nanoscale. These particles, typically ranging from 1 to 100 nanometers in size, are composed of magnetic ...

Introduction to Magnetic Bead: Understand the history, development, versatility, and impact of Dynabeads magnetic beads: After listening to the podcast, learners will be able to explain the origin and ...

Jack Knudson is an assistant editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column of the print issue. View Full ...