As a mechanical history researcher, I suddenly fell into the Bian River while reproducing the Northern Song Dynasty water transport instrument platform in the laboratory.
We climbed up the Hongqiao Bridge and found that the people of Bianjing were pointing at the street scene like "Along the River During the Qingming Festival".
"This lunatic said that iron birds can fly!" As passers-by laughed, I took out my pocket watch and said, "This is a timekeeping artifact."
The laughter stopped suddenly amid the sound of gears turning.
When the Goldfish Bag official pressed me on the principle of this thing, I drew a sketch of the escapement.
His hands were shaking as he stared at the drawings: "Tomorrow at the Yanying Hall... The officials want to see you."
---
