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November 20, 2009
Aspiring engineers build catapults at Wenatchee college
WENATCHEE, Chelan County (AP) — Wenatchee Valley College physics students will be hurling tennis balls from their ancient artillery today during the school's almost-annual catapult-building contest.
Initiated a decade ago by now-retired history teacher Celia Hall-Thur, the contest combines knowledge of ancient artillery with creative engineering.
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