Showcase Presents: Justice League of America

"I'm gaining-because the robot is made of metal and metals get tired*"

*: Editor's Note: Metal, when overworked, grows fatigued just as does the human body (except Superman's!). The crystalline grains of metal are elongated in the direction of the strain!

From JLA #13, The Riddle of the Robot Justice League, just one of 20 silver age Justice League comics reprinted in the $16.99 volume. Heartily recommended to anyone who fondly remembers comic book science...