Doctors sometimes use radium to kill cancerous cells in the bones. Radium was also used in self-luminous paints in clock and watch dials. It’s not used for this anymore though, as radium is radioactive which makes it dangerous!
The Radium Zone is a general science zone with five scientists from different disciplines. One studies aging in plants, one works to protect plants and wildlife, and one studies how to protect our lungs from environmental damages. One researches different uses for poo and another investigates how the body can repair itself after it’s been damaged.