A Shrinking Ray was a beam which could shrink its target to smaller size. It was used by Brainiac to shrink entire cities to a bottled collection.


Brainiac used the ray to shrink Kandor and later Metropolis. The shrinking was permanent but reversible, though re-enlarging the cities took more energy. ("The Super-Duel in Space")

Lex Luthor invented his own Shrinking Ray, copied partially from Brainiac's design, although Luthor's version caused only temporary shrinking. ("The Death of Luthor!")

Post-Crisis/Modern Age

Brainiac used the ray to shrink Kandor and other cities. This ray was automatically reversible, however -- that is, when the city's bottle was broken, the city enlarges on its own. ("Superman: Brainiac")

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