(Jon of the Clue Crew walks with crutches.)  Crutches are an example of a simple lever; the tip of the crutch acts as this point on whcih a lever turns
Program Transcript | PBS [PAR] Geoffrey Ward, Biographer: If it's the job of a mother to make her child feel that he 
or .... Eleanor Roosevelt Biographer: Allenswood was definitely a turning point.