Synonyms for chain reaction

Student after student popping out of existence in what seemed to be a chain reaction.

If the chain reaction failed to occur, the TNT would blow the very rare and dangerous plutonium all over the countryside.

The plutonium bomb worked by compressing the plutonium into a critical mass which sustains a chain reaction.

In an atomic explosion, a chain reaction picks up speed as atoms split, releasing neutrons plus great amounts of energy.

It stands to reason that a chain reaction is set up, actually causing a physiological result from a psychological reaction.

But they didn't know they had started a chain reaction that would affect their very lives.