Question

How to make a theodolite

Answer 1

To make theodolite You will need this a piece of thick cardboard a plastic straw thread, or thin string a small screw Tape scissors A ruler tape measure for activity And now follow this step Cut a 6 x 6 inch square from the cardboard cut the square in half diagonally tape the straw to the diagonally cut edge of one of the triangles cut a 10 pice of thread, and tie on end to the screw tape the other end of the thread to the triangle so that it hangs straight down along one of the 6 edges.