Good morning, class. Today we're going to discuss the history of the bicycle. Many people think the bicycle was invented in the 19th century, but early versions appeared much earlier. The first known drawing of a bicycle-like device dates back to 1493, attributed to Leonardo da Vinci. However, the first practical bicycle, called the 'draisine,' was invented by Karl von Drais in 1817. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, pedals were added to the front wheel, creating the 'velocipede.' This design was nicknamed the 'boneshaker' due to its rough ride. By the 1880s, the 'safety bicycle' with two equal-sized wheels and a chain drive became popular, making cycling safer and more accessible to the public.
❓ Какова была основная особенность «дрезины», изобретённой в 1817 году?
A. У него были педали, прикреплённые к переднему колесу.
B. Оно приводилось в движение отталкиванием ног от земли.
C. У него было два колеса одинакового размера и цепь.