Title:
Inventor's Challenge
Publisher:
The United States Mint
Source:
www.usmint.gov (via Wayback Machine)
Date Added:
4/6/2021, 11:58:11 PM
Date Modified:
4/26/2023, 9:28:17 PM
Original Description:
Find material and harness power to make the longest-burning light bulb.
ID:
9c1b0009-69f1-4af4-9eca-65d6f41faceb