Wednesday, July 23, 10:30-11:30 a.m. In this hands-on workshop, students explore the challenges engineers face when designing dive suits that keep divers protected, warm and mobile in the ocean. Registration required and started July 10. For ages 4-12. Free and open to the public. Call the Children’s Dept. at 404-303-6130 to sign up and with questions. Sandy Springs Branch Library, 395 Mount Vernon Highway, Sandy Springs, 30328. Email: for information.