[03:21 - 03:55] Speed of Decay and the Litvinenko Case

How, uh, uh, well, how the substance itself, uh, well, polonium, in this case, I think, yes, after some time becomes half less, ah, you mean the decay rate. The decay rate, yes. The decay rate. And I think that, for example, what. Decay rate. Yes. Well, well, it is necessary so that, I think, what killed, uh, Litvinenko, I think it's a very fast decay rate.