The Daily Reporter How much “pedal power” does it take to keep the lights on in your house? Young visitors at the Children’s Museum of Branch County can now find out, thanks to a partnership between the Children’s Museum and the Coldwater Board of Public Utilities. A newly-installed interactive exhibit at the Children’s Museum, “The Pedal Power,” encourages visitors to pedal a bike to keep the lights on in four different rooms of a house display. Every time a light switch is turned on, the bike gets progressively harder to pedal until all four light switches are on and the “pedal power” is significant.