Exhibit: Energy Crank
Venue: Kohl Children's Museum
Location: Glenview (near Chicago), Illinois, USA
Date: Sept 2005
Client: Derse Exhibits Inc.
Contributors: Mystus - prototyping, fabrication, Krause & Johnson Design - exhibit design, Derse Exhibits Inc. - principal exhibition contractor, project management

Description:

The visitor turns a crank that drives a generator. Immediately a light bulb and 3 leds leading to the tower come on and whose brightness is related to how fast the crank is turned. As the crank is turned the led lights on each floor of the tower start to turn on from the bottom in sequence. The two red tower top leds come on as soon as the bottom row is lit up. When the visitor stops cranking the tower lights all go off.