"Eggsistential Angst" is an investigation into balance and survival as an egg and a pendulum weave a never ending dance. The pendulum is in perpetual motion and alternates between moving freely, swinging until it is inverted and balancing. All the pendulum actuation is achieved using a reaction wheel (commonly used to adjust the orientation of satellites). The reaction wheel is driven by an Applied Motion StepSERVO that is controlled with an Arduino Due. The Arduino also sends the pendulum position over Bluetooth to an openFrameworks program which uses two more Applied Motion stepper motors to move the egg.