Today's lecture is about the history of the bicycle. The first pedal-powered bicycle was invented in the 1830s by a Scottish blacksmith named Kirkpatrick MacMillan. However, it wasn't until the 1880s that the 'safety bicycle' with two equal-sized wheels became popular, making cycling accessible to a wider audience, especially women. The lecturer also mentions that the introduction of pneumatic tires in 1888 by John Boyd Dunlop greatly improved comfort, but the key point is that the safety bicycle's design was crucial for mass adoption.
❓ 강의에 따르면, 자전거가 널리 대중화되는 데 가장 중요한 요인은 무엇이었나요?
A. 1830년대 최초의 페달 구동 자전거의 발명
B. 1880년대에 두 개의 동일한 크기의 바퀴를 가진 안전자전거의 설계
C. 존 보이드 던롭이 1888년에 공기 타이어를 도입한 것
D. 스코틀랜드 대장장이 커크패트릭 맥밀런의 작업
✅ 正确答案
The design of the safety bicycle with two equal-sized wheels in the 1880s