Today we're going to discuss the history of the bicycle. While many people assume the bicycle was invented in the 19th century, its origins actually go back further. The first two-wheeled, pedal-less device, called a draisine, appeared in 1817 in Germany. It was propelled by pushing feet against the ground. Later, in the 1860s, French inventors added pedals to the front wheel, creating the velocipede. However, this design was uncomfortable due to its rigid frame and wooden wheels. It wasn't until the 1880s that the modern safety bicycle, with a chain drive and equal-sized wheels, became popular, making cycling accessible to the general public.
❓ 講師が言及したベロシペードの主な問題点は何でしたか?
A. ペダルがありませんでした。
B. 硬いフレームと木製の車輪のせいで、乗り心地が悪かった。
C. 遅すぎた。
D. 生産するには高すぎた。
✅ 正确答案
It was uncomfortable because of its rigid frame and wooden wheels.