Half a croissant, on a plate, with a sign in front of it saying '50c'
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Interactive Sandpit

Kids play on large flat sandpit with computer controlled ferrous sand
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The computer would be like a giant sandpit which you could "draw on" by pushing the grains around. It could respond using magnets to shift the sand itself.

Even make the grains with a piezo-electric polymer coating that changes colour for an added dimension!

Only problem is if they put it in their mouth, brings new meaning to user interface...

zero5, Aug 06 2001

Technofrolics Dancing Magnetic Iron Dust http://www.technofr.../dust-overview.html
[JesusHChrist, Mar 30 2005]

TF videos http://www.technofrolics.com/video.html
[JesusHChrist, Mar 30 2005]

[link]






       What happens when Sally and Tommy play "Bury Tommy in the Sand" and then Sally presses the "delete" key?
beauxeault, Aug 06 2001
  

       Technofrolics magnetic iron dust is cool (link)
JesusHChrist, Mar 30 2005
  
      
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