This team exists because of a pile of uranium salt and an unexplained fogged photographic plate.
Becquerel noticed. I measured. That is how science begins.
What I discovered — and what took years of grinding ore to prove — is that radioactivity is an atomic property. Not chemical. Not molecular. The atom itself is the source. This was, at the time, a radical claim. Atoms were supposed to be immutable. I was told I must be measuring contamination.