Chinese junks were some of the most technologically advanced ships of their time. These multiple-deck ships could carry up to
5,000
people at a time. They also used
steam-powered engines
to keep from sinking. These innovations enabled junks to contribute greatly to China's prosperity during the Tang and Song dynasties.
I'm sorry, but the information you provided about Chinese junks is not accurate. Chinese junks were not equipped with steam-powered engines. Instead, they relied on wind power, using large rectangular sails attached to multiple masts. The number of people a junk could carry varied depending on its size, but it is unlikely that they could carry up to 5,000 people at a time.
However, Chinese junks were indeed technologically advanced for their time. They featured multiple decks, watertight compartments, and advanced rigging systems to withstand rough seas. They were also equipped with a stern-mounted rudder, which improved maneuverability, and had a design that allowed them to sail efficiently and explore long distances. These advancements made junks essential for China's maritime trade and helped contribute to its prosperity during the Tang and Song dynasties.