I am always amazed at the quality of your RR equipment the number of vehicles and figures on your MRR, Wow.
Very nice. Wonderful attention to time period. Is that perchance the new Oxford '50 Olds parked in front of the grocery store?
Much of the U235 has been refined out so the remaining U238 is not quite as radio active. Uranium is still a very toxic heavy metal, especially when burned. I believe I will stick to tungsten which is much safer and actually weighs just a little more (grams per cubic centimeter) than uranium. 19.25 g/cm3 for tungsten versus 19.1 g/cm3 for uranium.