Mad Science

“Radical Ross” Puryear grips the middle of a metal trash can tightly as he explains how the size of the container determines the pitch of noise — in this case an elephant — as his audience assistant Dayton Alaniz prepares to pull on the cord during the Mad Science show at the San Marcos Public Library. Daily Record photos by Denise Cathey

Molly Landsbaum gets into the swing of things as she whirls a resonator in front of the audience to make music with the force of air entering the tube through holes at different speeds. Mad Science is just one of the activities staged this summer by the public library for local children.