Home : Radioactivity - Homemade radioactivity tester tip
Radioactivity - Homemade radioactivity tester tip
Submitted by Richard
If you're worried about radioactivity in your area, monitor it by planting hardy tradescantia (Tradescantia virginiana). The stamen hairs on these sensitive wild flowers change from blue to pink when exposed to as little as 150 millirems of radiation.