An MRI can reveal your brain, muscles, spine, heart, and internal organs in astonishing detail—without a single incision or even a dose of radiation. But how can a machine see inside the human body using nothing more than powerful magnets and radio waves?

In this episode, we explore the remarkable science and engineering behind Magnetic Resonance Imaging (MRI). We dive into physics, biomedical engineering, medical imaging, electromagnetism, and human biology to understand how magnetic fields temporarily align hydrogen atoms inside your body and how radio frequency pulses generate signals that computers transform into detailed images.

We also explore superconducting magnets, cryogenic cooling with liquid helium, gradient coils, radio frequency systems, signal processing, image reconstruction, and why different tissues ...