There are probably radioactive things in your own home -- but don't worry! Some items are actually designed that way while still being safe. If you want to figure out what they are, or learn more about how scientists use a Geiger counter in the field, MacGyver Technical Consultant Rhett Allain has you covered. Watch all new episodes of MacGyver on Fridays at 8/7c on CBS and CBS All Access.
Air Date: Mar 12, 2018