Z01 齿轮风车 Gear Windmill 

产品规格：80x60cm

通过齿轮传功来带动风叶转动。认识齿轮的传动原理。

blades are driven to rotate via gear transmission, in which children can learn about the transmission principle of gear. 

Z02 摩天转轮  Ferris Wheel

产品规格：80x60cm

通过链条带动摩天轮转动，吊篮利用自重原理处于平衡，使吊篮中的小动物不会掉落。让小朋友在游戏中理解此物理现象。

the ferris wheel is driven to rotate via chains and the basket keeps balance with the self-weight principle so that animal in the basket will not fall down, in which children can understand such physical phenomenon in games. 

Z03 蜗牛转盘  Snail Disk 

产品规格：80x60cm

通过轴承传动减轻了运转阻力，使花、太阳、蜗牛的图案发生变化。刺激孩子的视觉神经发展。认识轴承能减少阻力加快速度转动的原理。

the running resistance is alleviated via the transmission of the bearing so that the picture of flower, sun and snail changes, which stimulates the development of children’s optic nerves and enables children to know about the principle that a bearing can alleviate resistance and speed up rotation. 

Z04 马戏转球  Circus Playing Ball 

产品规格：80x60cm

利用摇柄转动，使皮带带动数个圆盘同时运转。摇柄摇得越快，圆盘也转得越快。利用摇柄及皮带传动原理。

by rotating the crank, the belt will drive several disks to revolve at the same time. The faster the crank is rotated, the faster the disks will revolve, which makes use of the crank and belt transmission principle.