Grandfather and his grandson are enjoying to work together.
Sankata Temple (Paalha Dyo) : Te Bahal
BEIJING, Dec. 30, 2018 (Xinhua) -- Photo provided by State Administration of Science, Technology and Industry for National Defense shows the image of the rover for China's Chang'e-4 lunar probe. (Xinhua)
Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.