Every year since 1978 (almost 50 years) I have been involved with teaching Middle School and High School kids how to build balsa wood bridges. This last Saturday we broke 26 bridges built by students. We have given awards to the students who’s bridge held the most weight (this year one held over 600 pounds), the bridge that is the most efficient (high load to weight of bridge), and most innovative bridge.
This year Cambridge Christian Middle School had a bridge that weighed 108 grams (less than 1/4 pound) carry 292 pounds force!
Newsome High School (Lithia) had a bridge that also weighed 108 grams but it carried a load of 659 pounds! A record for all almost 50 years of the contest!
https://www.usfselmonbridgebuilding.com
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