Sean C. Morgan
As Ward Christman smashed egg after egg at the Sweet Home Public Library Dec. 6, his young audience cheered enthusiastically.
It was another episode in Christman’s monthly class, “Mechanisms: Simple Machines from Leonardo da Vinci to High Tech,” for children in the third through fifth grades. The class is held 2:30 p.m. to 4 p.m. on the first Wednesday of the month through June.
This day’s finale was to test creations designed…