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.
❓ ¿Cuál fue la principal ventaja de la bicicleta de seguridad introducida en 1885?
A. Era más rápido que el velocípedo de rueda alta.
B. Tenía transmisión por cadena y ruedas de igual tamaño, lo que la hacía más segura.
C. Fue la primera bicicleta con pedales.
D. Fue el primero en utilizar neumáticos.
✅ 正确答案
It had a chain drive and equal-sized wheels, making it safer.