Bridges

Earlier this summer we built a balsa wood bridge, but we never got around to testing it. With a beautiful September day ahead of us and a household of restless boys, we decided that today was the day. After setting up an initial twenty pounds or so, we started adding more

and more! It finally collapsed at 103.5 pounds. Jacob was impressed at the lightweight bridge's strength.

Jacob: "It can hold even more than an ant! This is certainly a world record!"

Amy: "Do you think they'll put us on the news?"

Jacob: "Oh, yes! We need to call the mailman...and the cameraman!"

We also constructed some fun gumdrop and toothpick bridges to test.Dad's design could hold 16 marbles,

and so could Jacob's.

Zachary's webbish bridge could hold 20 marbles and a backhoe.

And Adam could hold at least eight marbles (Michael tested him).