On 30th August 2016, the Airspace Industry Corporation of China signed an agreement with Antonov Corporation to complete the second machine and start production of more, with upgraded avionics and a different propulsion system.
The Three Gorges Dam causes a delay in the rotation of Earth.
The momentum is lost due to an enormous amount of water being forced through the dam. According to NASA estimates, the dam delays the rotation by 0,06 microseconds.
However, they are still widely used in areas without electric lighting. The cost and danger of kerosene lighting are an ongoing problems in many countries.
