12K views · 1.4K reactions | The world's largest self-elevating gravel leveling barge, which is independently developed by China, was launched on Tuesday in Nantong City, east China's Jiangsu Province. The "Yihangjinping 2" barge is 98.7 meters long and 66.3 meters wide. It mainly works to lay down gravel on the seabed to make a base for sunken tubes of cross-harbor tunnels. All its hardware, construction, and management system are designed and built by China. | CGTN | Facebook

137K views · 668 reactions | Tai Kwun is a bustling cultural hub in the heart of Hong Kong, but its walls tell a story of crime, punishment, and discrimination. | South China Morning Post | Facebook

The qanat, or kārīz, wasn't just a local solution; it became a foundational technology that spread across continents. From its likely origins in ~1,000 BCE~ Persia, the system was adopted and adapted by numerous empires. The Achaemenids used it to sustain their vast territories, and it later traveled east to Afghanistan (where it's called a karez) and west across North Africa (where it's known as a foggara) as far as Morocco. Each vertical shaft provided access for ventilation and maintenance of

305K views · 3.9K reactions | Made in China # Production # Supplier #...