XI'AN, Jan. 9 (Xinhua) -- On a cold night, 24-year-old Feng Jiachen puts on a Tang Dynasty (618-907) costume, moves side to side on a giant round-bottomed base before bouncing back upright like a ...

and uruttu (roly-poly) dolls, though the makers of these handcrafted toys have been facing a tough time for several years. Overtaken by plastic and battery-operated playthings, Thanjavur’s ...

The innovative design of this combustion-powered robot, based on a roly-poly toy, and how it returns to an upright position after each jump are described in a fascinating study published in Soft ...

On a cold night, 24-year-old Feng Jiachen puts on a Tang Dynasty (618-907) costume, moves side to side on a giant round-bottomed base before bouncing back upright like a "roly-poly toy," a doll ...