1 For example, flywheels are used in reciprocating engines because the energy source, torque from the engine, is intermittent. 2  Delivering energy at rates beyond the ability of a continuous energy source.
CongresswomanTammy Duckworth is a new mom. She gave birth to a baby girl named Abigail Tuesday. It is the first child for the 46-year-old Duckworth and her husband Bryan. Because of her age and injuries as an Iraq War veteran, Duckworth's pregnancy was considered high-risk. Go Search
Duckworth (surname) Duckworth is a surname, and may refer to: Actual persons: Angela Duckworth (born 1970), American psychologist, MacArthur fellow. Anthony Duckworth-Chad (born 1942), English businessman and senior county officer. Ben Duckworth (born 1974), Australian rugby league footballer.