Source google image: http://www.bestelectricwinch.com/photo/pl6103117-three_axis_standing_2_wheel_electric_scooter_three_accelerometers_drifting.jpg
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Gyroscope roue
Source google image: http://www.bestelectricwinch.com/photo/pl6103117-three_axis_standing_2_wheel_electric_scooter_three_accelerometers_drifting.jpg