Curiosities you definitely don't know about the Great Wall of China
The Great Wall of China is one of the most impressive, important and famous human constructions in the world, a UNESCO World Heritage Site since 1987, and has also been on the list of the Seven Wonders of the Modern World since 2007.According to historical sources, its construction took several centuries, as well as the lives of hundreds of thousands of workers, mostly slaves. Moreover, according to modern measurements, there is no certainty about the exact length of the Wall, which should be around 8850 km (of which about 350 km of trenches and about 2250 km of natural defences) according to the most up-to-date estimates. Considering all the ramifications, however, the length increases greatly.
China throws down the gauntlet: lifted off C919, first domestically produced plane
The C919, China's first domestically produced passenger aircraft, made its maiden flight today, taking off from Shanghai Airport and heading for the capital Beijing. The 164-seat aircraft was built to break the dominance of single-aisle jets from Airbus and Boeing, but still relies on Western components, including engines and avionics. Despite this, Comac, the manufacturer, already has over 1,200 orders, but some experts suggest that most of these orders are just letters of intent from domestic customers.