All you really need to be a superhero is to be really smart. That’s Brain Boy, and he battled a time machine in issue 4 (Mar/May 1963).
And you haven’t asked what the late Professor Krisher was working on. It was the practical application of a theory of time travel! Going back in time—say to civil war days, or the days of the Roman Empire!

Variants

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  1. “Brain Boy” by Herb Castle and Gil Kane, in Brain Boy 4, Mar/May 1963.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Herb Castle