China's First Lecture from Space is Held on June 20, 2013

Wang Yaping, the second Chinese woman to enter space, gives a lesson from the heavens in Shenzhou X on June 20, 2013. [Photo/sasac.gov.cn]

China's first lecture from space is held on June 20, 2013

Wang Yaping, the second Chinese woman to enter space, gave a lesson from the heavens in Shenzhou X on June 20, 2013.

China Unicom supported the communication techniques during the live streaming.

The lecture was about the effects of weightlessness on the movement of objects and the surface tension of liquids.

The in-orbit demonstration deepened students' understanding of basic physical concepts like mass, weight and Newton's laws of motion .

China succeeds in the world's first live work of unmanned aerial vehicle on June 20, 2014

State Grid Corporation of China succeeded in pulling an insulating flexible ladder into the 750-kV strong electric field with a multi-rotor unmanned aerial vehicle (UAV) on June 20, 2014, which eliminated the shortage of the wire at the Guandong Erxian No 82 section.

It was the first time a UAV was used in electric works of ultrahigh pressure and an equipotential power transmission line project in a high altitude area.

The success signaled that 750kV electric work has entered the "mechanical age of UAVs".

(Executive editor: Hao Wen)