In order of radioactivity: Spent Nuclear Fuel (Fission Products), Radium, Natural Uranium (distant third)
Original Video @NileRed [ Ссылка ]
![](https://i.ytimg.com/vi/C3Hp5W-r9l4/maxresdefault.jpg)
In order of radioactivity: Spent Nuclear Fuel (Fission Products), Radium, Natural Uranium (distant third)
Original Video @NileRed [ Ссылка ]