Good morning, class. Today we'll discuss the history of the bicycle. The first two-wheeled vehicle, called the 'draisine', was invented in 1817 by a German baron. It had no pedals; riders pushed their feet against the ground. In the 1860s, pedals were added to the front wheel in France, creating the 'velocipede'. However, it was heavy and uncomfortable. Later, in 1885, the 'safety bicycle' was introduced in England, with a chain drive to the rear wheel and equal-sized wheels. This design became the basis for modern bicycles, as it was much safer and faster than earlier models.
❓ Según la conferencia, ¿cuál fue la principal ventaja de la bicicleta de seguridad introducida en 1885?
A. Tenía un asiento cómodo y neumáticos de goma.
B. Era más seguro y rápido que los modelos anteriores.
C. Fue la primera bicicleta con pedales.
D. Se podía plegar para facilitar su almacenamiento.