This Private merry-go-round demonstrates how distribution of weight affects the speed of a whirling body. The swivel chair is set in motion by a gentle push and as the occupant pulls the weighted levers toward her, the rate of rotation increases sharply.
Digital Commonwealth — Boston Public Library

This Private merry-go-round demonstrates how distribution of weight affects the speed of a whirling body. The swivel chair is set in motion by a gentle push and as the occupant pulls the weighted levers toward her, the rate of rotation increases sharply.

Wide World Photos, Inc. · [ca. December 1942]

CC0 — Public Domain
Digital Commonwealth — Boston Public Library

[Information from item housing] Laboratories: Wire Photos

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