PIRA Classification: 3A60.44
Description: A hollow Donald Duck is suspended vertically between two springs. One of the springs is connected to a motor while the other is fixed to a ring stand. The motor is set to the resonance frequency of the system; however, the mass of the duck is not correct. Therefore, the duck will not oscillate (much) initially. 150 mL of 'wine' is added to the duck in order to achieve resonance. Coffee is then added to 'calm down' the duck.
Special Instructions: Remove the cork from the duck's head and pour in the liquid with the funnel provided. Remember to replace the cork before starting the motor.
Condition: Ok
Setup time: 5 minutes
Safety Issues: None