The wooden bicycle looks like a wooden horse, with two wheels nailed to its feet and fixed on a line. Because this bicycle has no driving device and steering device, and the seat cushion is low, Sifrak rides on the bicycle by himself, with his feet on the ground and pushing back hard to make the bicycle move straight forward.
The real modern bicycle was born in 1874. 1874, Luo Song, an Englishman, ingeniously installed chains and sprockets on his bicycle, and used the rotation of the rear wheels to propel the car forward. But the front wheel is still big and the rear wheel is small, which looks uncoordinated and unstable.
The first truly practical bicycle in the world appeared at the beginning of19th century. 18 17, German delaisse invented a wooden two-wheeled bicycle with handlebars in Paris. After the bicycle came out, it quickly became the favored means of transportation for Europeans at that time.