Fall feet-first toward a black hole and you will not simply blink out of existence or be crushed like a submarine. You will be stretched into a noodle. This episode strips the heavy math out of spaghettification, the term Stephen Hawking popularized in his 1988 book and which now appears in astrophysics textbooks, to explain the physics of tidal gradients: the difference in gravitational pull between your feet and your head becomes so steep near a singularity that the lower half of your body accelerates away from the upper half.

We explore the counterintuitive detail that while you are stretched vertically you are also squeezed horizontally, so your total volume never changes, using the analogy of rolling a ball of clay into a rope. A four-object diamond thought experiment shows why the inverse square law elongates the formation while conve ...