US Army Corps of Engineers
Far East District U.S. Army Corps of Engineers Website

USAG Humphreys Central Elementary School students learn engineering principles through STEM
Col. Mick Nyenhuis (shown here, left) and his colleague Col. Phil Keller demonstrated principles of aerodynamics using a blow dryer, golf balls and ping pong balls.

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Photo by: Bob McElroy |  VIRIN: 160419-A-ZZ999-003.JPG