Benjamin Allan Denison

Benjamin Denison is a radiochemist who is working where Dr. Frederick Hallam worked. It was Denison's snide remarks to Hallam that drove Hallam into doing further testing on the material received that eventually leads to the invention of the Electron Pump. Dr. Hallam receives all the credit for this invention and for his role in its development. Denison is ruined by Hallam's newfound power.

Denison is mentioned a few times in the beginning of the story as a brilliant scientist but isn't focused on until the last section of the book. It is Denison, thirty years later, who is able to prove that Hallam's pump has the potential for destroying the known Universe, and Denison creates the means to reverse this without completely doing away with Hallam's pump.

Denison is an older man when he goes to the moon and, while going there to try and...