Radiolab cover image

Less Than Kilogram

Radiolab

00:00

Redefining the Kilogram

This chapter explores the shift from the traditional physical representation of a kilogram to a new definition based on the Planck constant, encapsulating the technological advancements at an underground facility in Maryland. It highlights the innovative weighing techniques, including a teeter-totter balance system, and the global efforts to achieve precise measurements. The narrative culminates in a significant vote in France that marked a pivotal change in how mass is understood and defined.

Transcript
Play full episode

The AI-powered Podcast Player

Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!
App store bannerPlay store banner
Get the app