A deep dive into the everyday wonder of a cheap, disposable pen. From tungsten carbide bearings and textured sockets to capillary ink action and shear-thinning fluids, we unpack how nano-sized tolerances and surface roughness unlock smooth, reliable writing. Debunk the myth of a perfect 500-nm gap, explore how a gel ink becomes liquid under pressure, and reveal the extraordinary science behind a tool you probably use daily.

Note:  This podcast was AI-generated, and sometimes AI can make mistakes.  Please double-check any critical information.

Sponsored by Embersilk LLC