Hattie Carwell, a health physicist and head of operations at DOE's Berkeley site office, gave an audience of mostly eighth-graders from Willard and Martin Luther King middle schools a history lesson on the achievements of black scientists. Among them: Benjamin Banaker, who made the first clock in the United States, helped lay out the plans for Washington, D.C., and produced an almanac in the 1800s.

Audience participation was high as the students jockeyed for position to answer questions and volunteer comments. The session, part of Black History Month activities, also included a performance of African American storytelling with actress and performer Marijo. Photo by Roy Kaltschmidt (XBD9902-00421-03)