Tonight’s boring science for sleep takes you into the softly unsettling world of radium dial painters, the glow-in-the-dark paint that made them famous, and the chemistry that made their jobs so dangerous. In classic Sleepless Scientist style, we keep things calm and slow while explaining radiation, half-life, and why radium behaved like calcium in the body.

We also drift through a few more quietly fascinating science stories, from early industrial lab safety to the way simple measurements changed how we understand exposure and risk. Put this on in the background and let the facts, the formulas, and the gentle explanations guide you toward sleep, while you learn something strange and real along the way.

📚 Chapters:
0:00:00 The Quiet Glow in the Workshop
0:14:40 What Radiation Feels Like (Mostly Nothing)
0:29:21 The Brush Tip Ritual
0:44:02 When the Body Mistakes Poison for Calcium
0:58:43 Slow Evidence in a Fast World
1:13:23 Other Helpful Things That Quietly Hurt You
1:28:04 How Humans Learned to Detect the Unseen
1:42:45 Radiation That Heals (When Respected)
1:57:26 A Calm Cosmic Perspective on Small, Bright Things