Tuesday December 1 2009

All bridges have no been completed and they are all ready for testing. The arch bridge was difficult to construct but I made the bridge but first crating the arch then placing push pins at several points along the arch. The arch bridge contains 3 pieces of bass wood on both faces of the bridge.

The next objective is to test them but before i do so, I will obtain a gage(used to measure the deflection created by the bridges them selves during the process of testing). A set of testing weights in pounds as well as a scale for the weighting of the bridges in pounds must all be used before the actual testing.