The 31st day of the end of the world.
Beilian University of Technology, abandoned mechanical experimental workshop.
"Buzz——"
Jiang Miao used all her strength to pull the heavy cast iron flywheel.
Sweat slid down her forehead, hit the cold metal casing, and evaporated instantly.
This enlarged single-cylinder steam engine model, pieced together from countless scraps, was her graduation project, but now it is her only hope.
The flywheel rotated several times under inertia, driving the piston. The pointer of the pressure gauge in the boiler trembled and pointed to the red critical zone.
