Péter Fankhauser: Meet Rezero, the dancing ballbot

The video introduces Rezero, a Ballbot developed by students at ETH-Zurich. Rezero balances on a single ball, making it inherently unstable but highly dynamic. It uses sensors to measure its pitch angle and motors to maintain balance. The video demonstrates Rezero's capabilities, including maintaining position, passive movement, and following or orbiting a person. Potential applications include use in exhibitions, parks, and hospitals. The technology is experimental but offers practical and aesthetic value.

What is the primary characteristic of a Ballbot like Rezero?

• It has multiple wheels for stability.

• It balances on a single ball.

• It is stationary and does not move.

• It uses tracks for movement.

How does Rezero maintain its balance?

• By using gyroscopes to stabilize.

• By constantly measuring its pitch angle with a sensor.

• By having a wide base for support.

• By using a counterweight system.

What allows Rezero to move dynamically despite its instability?

• Its ability to turn the ball with special wheels.

• Its lightweight design.

• Its low center of gravity.

• Its aerodynamic shape.

In which mode can Rezero be moved around with minimal force?

• Passive mode

• Active mode

• Orbiting mode

• Static mode

What technology does Rezero use to follow a person?

• Ultrasonic sensors

• Infrared sensors

• Laser sensors

• GPS tracking

Which of the following is a potential application of Rezero in a hospital setting?

• Guiding visitors through the hospital.

• Carrying medical equipment.

• Providing entertainment for patients.

• Monitoring patient vitals.

What is a unique advantage of the Ballbot system in terms of space?

• It requires a large area to operate.

• It has a very small footprint.

• It can only move in straight lines.

• It is difficult to maneuver in tight spaces.