Human power
Human powered transportations such as walking or bicycling,relies entirely on human muscle power for movement.The earliest foot paths were likely based on animal migration routes, and ancient cultures developed extensive paths and roads for both transportation and communicationToday in many countries of the world, human powered transportations remains the main form of transportation
Domestic animal
People have used domestic animals for thousands of years to help transport goods over longer distances. Pack animal caravans using domesticated donkeys.Pack animals are still used today in many parts of the world.Other pack animals include camels mules, oxen, dogs goats elephants and horses.
A-3 The wheel and railroads
The origin of the wheel is unknown. But once it was invented knowledge of the wheel spread rapidly. Wheeled vehicles made the movement of good much easier. The cart or wagon pulled by humans or animals was the first wheeled vehicles.
Railroads are paths of parallel metlerails thatallowa wheeledvehicle to move more easily by reducing friction.
