In one of my physics classes our teacher went off on one of his tangents (trust me, it’s a usual thing) and told us a story of telephones made by BT which used radioactive tritium to make the buttons glow in the dark. Unfortunately for them the radiation was too dangerous and loads of phones were recalled and stored in an old aircraft hanger somewhere. Because of this they didn’t realise the radiation would increase keeping them together and now the area is quarantined for health and safety reasons.
Is this true? I trust my teacher because he so boring it’s not in him to be so creative.
Also he told a story of nuclear mines buried in Berlin after WW2. Any truth?