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
In 2014, she became just the tenth lawmaker to give birth while serving in Congress. In a few months time, Duckworth can boast of another first â the first senator to have a baby while in office. Advertisement â story continues below The 49-year-old Democrat announced that she was pregnant Tuesday, posting a tweet with a graphic of four ducks, along with the caption, âWanted to share some exciting personal newsâ¦â