The Teste Touch is an interactive art exhibit that’s got some serious balls. These giant size testicles react to touch and temperature. They can retract and ascend. It takes a big sack to attempt to create the world’s largest balls and get school credit for it. Here’s some video of these big ass balls in action:
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this exhibit goes with this NASA telemetry model:
http://www.youtube.com/watch?v=1f_fBGu0zaw