Today we're going to discuss the history of the bicycle. In the early 19th century, the first two-wheeled vehicle, called a 'velocipede', was invented in Germany. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, French inventors added pedals to the front wheel, creating the 'boneshaker'. However, it was very uncomfortable due to its wooden wheels and metal frames. The real breakthrough came in 1885 when John Kemp Starley designed the 'safety bicycle' with a chain drive to the rear wheel and equal-sized wheels, making it much safer and more practical for everyday use.
❓ 講義によると、1885年に導入された安全自転車の主な利点は何でしたか？
A. より快適な座席がありました。
B. 以前のモデルよりも軽くて速かった。
C. チェーンドライブと同サイズの車輪を使用しており、より安全でした。
D. ペダル付きの最初の自転車でした。
✅ 正确答案
It used a chain drive and equal-sized wheels, making it safer