8 must-sees in the Museum of Science and Industry's 80 at 80 exhibit


Dog Treadmill, c. 1872

Chicagoans likely would be tempted to use a doggy treadmill on blustery winter days when Fido needed to burn some energy (and pounds). In 1872, though, families put the pup to work on the dog treadmill, used on farms to churn butter or power a grain mill.

Kids Eat Chicago

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