Central Valley High School - Talon Yearbook (Central Valley, CA)

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Bridge Over Troubled Water Troy McLaughlin's bridge holds at 151 lbs. With 30 feet of balsa wood, a Ms oz. tube of Testor's balsa ce- ment, and hopefully a strong plan, the physics class set out in a competition of stress, force and torque. Each individual was assigned over a two week period to build a bridge 16 inches long with an open span 10 inches in length, and at least 2 inches in height. At maximum, the bridge could not exceed 16 inches, and only 4 pieces of balsa wood would be glued lengthwise. No heat was applied to the contructions. 10- 18 hours of delicate work led up to December 13th, the day of testing. The structure was placed on a support jig with a bathroom scale as a measuring device. Sol- id pressure was applied until the bridge collapsed under pres- sure. The winners of the contest were Troy McLaughlin - 151 lbs, Brian Bucher - 99 lbs., Tracy Morales and Cary Siemers - 89 lbs. ln bridge building's nine year his- tory, the strongest bridge was build by Mr. Doniak. His bridge held 222 lbs. 1. Gary Robinson watches bridge dur- ing test. 2. Physics class, bridge building contest. 3. Mike Adams and Brian Bucher show off their bridges. 4. Steve Tussing's bridge apparently held up well. 5. Brian Bucher's bridge withheld ninety-nine pounds. Bridge Building

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