There are the following reasons for the low efficiency of an ox carrying corn on its back:
In terms of carrying capacity
- The amount of corn that an ox's back can carry is limited, while an ox - drawn cart has a larger loading space and can transport more corn at one time, reducing the number of transports and thus improving the overall transportation efficiency.
In terms of stability
- When an ox carries corn, if the corn is not firmly tied or the ox moves a little bumpily, the corn is easily dropped. However, an ox - drawn cart is relatively stable, and structures such as the cart board can better fix the corn and reduce losses during transportation.
In terms of the utilization of the ox's physical strength
- When an ox pulls a cart, rolling friction is utilized. Compared with when an ox carries corn on its back, the ox needs to overcome the greater pressure generated by the weight on its back and the sliding friction during walking. Pulling a cart is more labor - saving and can transport a larger amount of goods with the same physical exertion.
