Built-in motor rotates this illuminated earth at a constant rate .
内置马达让这款装有灯饰的地球仪以恒定速率旋转。
Each dot rotates rapidly and animates the skin of the sculpture .
每个点都在快速旋转，赋予了这件雕塑品以灵动的表面。
Look at the red dot on the earth and the path it travels as the earth rotates .
看着地球上的红点以及地球旋转时它的轨迹。
A slow moving river current can create a slow turning eddy , which rotates , forming an ice disc .
一条缓慢流淌的河水可以形成慢速的涡流，伴随着旋转，就会形成了一个冰盘。
Giving photons orbital angular momentum means twisting a beam 's wavefront so that , as the beam travels forward , its wavefront rotates around the propagation axis .
