Andy Wall on Twitter: “Using a @SpheroEdu to try and generate enough force to roll a 14 ft long cardboard tube #innovationclass http://bit.ly/2lZzwym”
via Tumblr http://bit.ly/2mCf3TT
Andy Wall on Twitter: “Using a @SpheroEdu to try and generate enough force to roll a 14 ft long cardboard tube #innovationclass http://bit.ly/2lZzwym”
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