Whatever your feelings on Disco, it's hard not to root for the resurgence of one particular track that started taking CPR classes by storm. Producer Ellen Horne explains how one aptly named 70s mega-hit could help you save someone's life.

Then, Jad and Robert pit physics against an ancient tale. In the bible, the sound of seven shofar players (shofars are basically trumpets made of rams' horns) blasts down the walls of Jericho. To find out how many shofars it would actually take to level a Bronze Age wall, we call on engineer and sound expert David Lubman. And we pay a visit to Cantor Daniel Pincus to hear him and his students blow some powerful shofars. Finally, we talk to inventor Woody Norris about a modern twist on this biblical challenge.

Many thanks to the 2010 Shofar All-Stars who played for us: David Liebowitz, Daniela Drakhler, Miriam Frank, Adam Hametz-Berner, Rachel Kelk, Ed Kerson, Anna Levy, Richard Scheiner, and Robert Wine.

---

We're cooking up something new and looking to get your feedback. Join our Radiolab for Kids listener panel by taking this 5 minute survey (https://airtable.com/shrjoLpn13qCHlXh0). We're listening and want to create more awesome stories for you and your families!

Radiolab’s newsletter comes out every Wednesday. It includes short essays, recommendations, and other fun ways to interact with the show. Sign up (https://radiolab.org/newsletter)!

Radiolab is supported by listeners like you. Support our show by becoming a member of The Lab (https://members.radiolab.org/) today.

Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected].

Visit the Radiolab for Kids/Terrestrials website to learn more about the show, meet our team,  listen to the songs and discover fun activities, drawing prompts, music how-tos, and games that educators, parents, and families might enjoy together.