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Stepping on the illuminated buttons at Google I/O 2013 would change their color, as this conga line shows.
Billy Idol at the Google I/O 2013 party.
This giant hydraulic hand, operated by a person with a sensory glove, was clumsy -- but it was also powerful enough to pick up and squash 55-gallon drums.
Here, the giant robotic arm picks up a 55-gallon drum at the Google I/O 2013 party. Yes, it was empty.
Google I/O's interactive dance floor was colorful, but dancers were hard to come by.
The robotic arm's operator, visible at the center here wearing a white T-shirt and seated behind the hand, operated the arm with a homemade sensor glove.
A smartphone-based robot controller app, operated here by the person in green, sent the cross-legged Google I/O party attendee all around the floor.
The flat robot could be directed to spin -- thus the rider's hardhat.
Indeed, the robot could spin very rapidly. It was a trip good for those who like roller coasters.