Why does the emperor find his invention more acceptable than the invention of the invention of the flying machine?

The emperor finds his invention more acceptable because it aligns with his desire for grandeur and control, showcasing his power and authority. Unlike the flying machine, which represents freedom and unpredictability, the emperor's invention is a reflection of his own image and ambition, making it more palatable to him. Additionally, the flying machine could symbolize a challenge to his rule, whereas his own invention reinforces his position.