Marisa Madeira (left), 17, and Cooper Yerby, 18, both Olathe North High School students, take the Archimedes Screw for a spin with Burns & McDonnell CEO Greg Graves during the opening ceremony for their Every Last Drop exhibit.
Marisa Madeira (left), 17, and Cooper Yerby, 18, both Olathe North High School students, take the Archimedes Screw for a spin with Burns & McDonnell CEO Greg Graves during the opening ceremony for their Every Last Drop exhibit. SHANE KEYSER The Kansas City Star
Marisa Madeira (left), 17, and Cooper Yerby, 18, both Olathe North High School students, take the Archimedes Screw for a spin with Burns & McDonnell CEO Greg Graves during the opening ceremony for their Every Last Drop exhibit. SHANE KEYSER The Kansas City Star

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