Discovery Days: Pom Pom Catapults
- 400 Eau Claire St., Eau Claire, WI 54701
- Visit Website
- Dates: July 8, 2026
- Location: L. E. Phillips Memorial Public Library
- Time: 1:30 PM to 3:00 PM
- Price: FREE
Construct a catapult with simple engineering principles, and then lay siege to the castle.