When children, with help from parents, use plywood and off-the-shelf hardware to build wheeled devices that harness the power of gravity, convert potential energy into kinetic energy, and convert a few days of work and a few moments of suspense into a few minutes of fun, it's called a soapbox derby.
The third annual Woodside Soapbox Derby, sponsored by the Woodside Recreation Committee, begins at 1 p.m. Sunday, May 15, at the top of the sloped parking lot next to Independence Hall at 2955 Woodside Road in Woodside.
Practice runs and a barbecue begin at noon. Children ages 7 through 12 are eligible and must be accompanied by a parent. The fastest car and the coolest car will receive awards.
Tickets are $50 for the race and $10 for the barbecue.