Easy test equipment for the rest of the school to measure their blind spot angle - they look through the hole and slide the test card back and forth until they find the point at which their blind spot hides the dot - then we read off the distance and make a look table to find which angle that corresponds to! Quick and easy! We'll bribe them with a thinky so they do the experiment for us!
(Here's thinky the monocular-illusion-dragon! (look at him with one eye closed... )
We made lots of him and everyone except those with an over-intelligent visual cortex thought he was very cool/wierd)
Field-of-vision test box - we look through the hole in the middle and we will position LEDs poking into the box that we can light up and see if we see them whilst we look straight ahead. We will be able to measure field of view and sensitivity to how bright they are and sensitivity for different colours :)
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