Harford County Public Library’s Summer Reading Adventure 2023 hosts “Circus Science with Gregory May” on July 12 from 6 to 6:45 p.m. on the Abingdon Library grounds, 2510 Tollgate Road in Abingdon. This outdoor program features silly scientist Gregory May, a former Ringling Brothers performer and Port Discovery Children’s Museum educator, who uses amazing tricks to explore the circus world and the basic science that makes it work. Multiple volunteers will work “All Together Now” with Circus Greg in this energetic and interactive performance for all ages. For more information, visit https://programs.hcplonline.org/events.