By Jessie Ponds
The News & Advance
LYNCHBURG, Va. — Grain by grain, sediment began to build up in the reservoir behind the tiny dam, as anticipation built on the faces of the high school students watching.
Diana Duckworth, a teacher with the Summer Residential Governor’s School Program in Mathematics, Science and Technology had a model river rigged up in her classroom at Lynchburg College. A hose pipe provided the water, which wound up in the sink at the end of its run. Connected metal channels provided a sloping path for the flow.