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Of course we could go back and take a lead on the very old division in thinking about 
light and vision  with a "Greek" school of thought that vision way an emmissive process ( with "beams" leaving the eye to "touch" and so sense the objects around us), verses and "Arabic" school which was intromissive, light moving from object to eye.

so for the maze, one could have a number of "bright targets" - could be lights, well illuminated pictures or texts,  and the user look through the maze, and needs to align the mirrors to "see" the target.

dosen't "show" perhaps in as direct a sense that light travels in straight lines, but certainly can encourage users to think about how the light moves through the unit.

Some coloured filters ( diachroic) in a similar exhibit we had years back, allowed for colour mixing, and separating en route ( perhaps a separate exhibit in this context).

I do like watching the beam.  echo's of Faraday wonder when looking at a rainbow appear and disappear in exactly the same space, as wind blew mist from a waterfall into and out of the right "alignment". To him is seamed the rainbow was always there, you just didn't see it all the time.


Stuart Kohlhagen
Manager Research and Technology
Questacon
The National Science and Technology Centre
Canberra
Australia

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