If there is a propulsion device, the starting efficiency can be improved.
Secondly, there is a strong friction between the mine car and the wheels, which results in weakened power of the mine car.
Although the wheels and track wood have been polished with an iron planer, the problem of excessive friction still cannot be solved.
Perhaps only by replacing all the track wood and wheels with iron can we see improvement.
Finally, transporting coal requires the combined efforts of several people.
The workers loading the coal, the workers operating the mine car, the workers at the town who need to unload the coal, and the workers responsible for track maintenance...
A reasonable shift system must be implemented.
As Lynn pondered, a reminder voice reached his ears.
"Be careful, if something happens, it won't be a joke!"
Lynn's gaze shifted to a point not far behind him.
There, a relatively strong man was helping a thin man who had fallen to the ground to stand up.
