Just Use Your Imagination
Submitted to Feature: Gadgets Galore
2 responses
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Ann Reece gave props (9 Feb 2009):
This looks like what my grandsons get so attracted to at the Children's Museum where balls go down and around and release levers that move things. It is fascinating to watch it working.
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Sonia Adam Murray gave props (10 Feb 2009):
Very good.
