A simple experiment to determine the diameter of the blind spot is described. Students are divided into groups of three and work together to perform the experiment. The procedure takes about 15 minutes and seems to be quite enjoyable to the class.
Permission has been granted by The Physics Teacher to supply this article [http://dx.doi.org/10.1119/1.880312] for educational and research purposes. More info can be found at http://aapt.scitation.org/journal/pte. © 1999 American Association of Physics Teachers.
J. Sanny, The Physics Teacher 37, 348 (1999); doi: 10.1119/1.880312