You are perfectly right. My question, however, focused on the correlation between signals from a pulsar and the emission of electromagnetic radiation from a small mass of Uranium on Earth.
Probably not. But even if there is, there is no conceivable way to prove it, because any interaction inside the Earth cannot be measured, and even interactions between pulsar activity and uranium in a laboratory would be far to small to be detected with any technology imaginable within the next hundred (or more likely, thousand) years. And aside from that, we certainly do not know where even a fraction of the pulsars within our galaxy are located, and how they might (or might not) affect any given interaction; so that even if the interactions were measurable, they would probably appear to be merely "noise" in the data.