Today we're going to discuss the history of the bicycle. Now, many people assume the bicycle was invented in the 19th century, but in fact, a primitive version appeared in France in the 1790s. It had no pedals; riders pushed their feet against the ground. However, the first truly popular design, called the 'penny-farthing,' emerged in the 1870s in England. This had a huge front wheel and a small rear wheel. It was fast but dangerous. Then, in 1885, John Kemp Starley introduced the 'safety bicycle' with two equal-sized wheels and a chain drive. This design became the basis for modern bicycles. Interestingly, the first practical pneumatic tires were added a few years later, in 1888, by John Boyd Dunlop, which greatly improved comfort.
❓ Lợi thế chính của xe đạp an toàn được giới thiệu vào năm 1885 là gì?
A. Nó nhanh hơn xe đạp bánh to bánh nhỏ.
B. Nó có bộ truyền động xích và các bánh xe có kích thước bằng nhau, giúp an toàn hơn.
C. Đây là chiếc xe đạp đầu tiên có bàn đạp.
D. Đây là chiếc xe đầu tiên sử dụng lốp hơi.
✅ 正确答案
It had a chain drive and equal-sized wheels, making it safer.