School Science/Demo periscope

A cost-effective way of making a sturdy demonstration periscope
Fig. 1 Periscope Demo Diagram  Fig. 2 Periscope Demo Photo

Equipment Required (to Make Demo Periscope)

 * 2 pieces of plywood 45 cm &times; 10 cm and 0.9 cm thick
 * 2 pieces of plywood at least 37 cm &times; 10 cm and 0.9 cm thick
 * 2 pieces of plywood at least 11.6 cm &times; 10 cm and 0.9 cm thick
 * 2 pieces of wood which are prism shaped at least 10 cm &times; 8.5 cm &times; 8.5 cm the internal angles should be 90&deg; and 45&deg;
 * 2 plastic or glass mirrors 10 cm &times; 10 cm
 * small screws to fit.
 * Screwdriver
 * Drill with suitable drill bits for the screws
 * PVA Glue

Method for making the demonstration periscope

 * 1) Cut the wood to the correct size and sand if need be.
 * 2) Screw the 4 long pieces together as in fig 1.
 * 3) Screw the prism shaped pieces of wood on either end as in fig 1. and attach mirrors with glue.
 * 4) Attach ends as in fig 1.
 * 5) It should look something like fig 2.