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
Watch Tammy Duckworth Talk About Her Service in the Iraq War. When Illinois Sen. Mark Kirk mocked Rep. Tammy Duckworth's Asian heritage in a debate Thursday night, the slight got at more than just raceâKirk was also belittling the history of military service in Duckworth's family.