Why Your Pen Cap Has a Tiny Hole (It's There to Save Lives)

Name: Why Your Pen Cap Has a Tiny Hole (It's There to Save Lives)
Uploaded: 2026-10-20T01:35:00Z
Duration: 30 s
Channel: Cody V
Description: The hole in a pen cap isn't a design quirk: if a chewed cap goes down the wrong way and gets stuck, air still gets through. Did You Know? Ep. 01

The hole in a pen cap isn't a design quirk: if a chewed cap goes down the wrong way and gets stuck, air still gets through. Did You Know? Ep. 01

Cody V0:30 · collage film · Oct 20, 2026