Good morning, everyone. Today we're going to discuss the history of the bicycle. Now, you might think the bicycle was invented in the 19th century, and you'd be right, but its early designs were quite different from what we see today. The first two-wheeled vehicle, called the 'draisine', was invented by Karl von Drais in 1817. It had no pedals; riders pushed their feet against the ground to move. Later, in the 1860s, pedals were added to the front wheel, leading to the famous 'penny-farthing' with its huge front wheel. However, it wasn't until the 1880s that the 'safety bicycle' with a chain drive and two equal-sized wheels became popular, making cycling much safer and more accessible to the general public.
❓ 1817년에 발명된 '드레이진'의 주요 특징은 무엇이었나요?
A. A. 앞바퀴에 페달이 연결되어 있었다.
B. B. 그것은 라이더가 발로 땅을 밀어 움직였다.
C. C. 그것은 두 개의 같은 크기의 바퀴와 체인 드라이브를 갖추고 있었다.
D. D. 그것은 경주를 위해 특별히 설계되었습니다.
✅ 正确答案
B. It was powered by the rider pushing feet on the ground.