The Bridge

This bridge is made by 6 different kinds of members.(1 inches x 0.15 inches x 80%; 1 inches x 0.2 inches x 75%; 2 inches x 0.15 inches x 80%; 2 inches x 0.2 inches x 75%; 2.236 inches x 0.15 inches x 80%; 2.236 inches x 0.2 inches x 75%). The weight of the bridge is 30.7 grams. This can hold at least 35 kg. When we tested the bridge did not break so the full capacity is unknown. The load to weight ratio is 1048x its own weight.