DESIGNED BY US

This unit designed by us, helps to demonstrate Newton’s discovery that white light is made up of the seven colours of the rainbow (spectrum) it is battery operated and simply press the small red button and the disc will spin round fast, probably faster than the hand held spinners mentioned earlier. So the disc will go even whiter than the others. Good for demonstrating without having to make anything up. Comes ready to use. You just supply the battery.(1 x AA)

                                                  Light topic

                                      PS20  - £10 includes postage

              * Please note prices are quoted for UK only please email for a quote for rest of the world