但是光的新特性比单纯的推力要高级：光能产生这种更复杂的作用力-提拉力，很显著的例子是一个方向的光通量可以使物体垂直移动。
Light's new trick is fancier than a boring push: It created the more complicated force called lift, evident when a flow in one direction moves an object perpendicularly.
发现光可以产生提拉力是个意外，而且这只源于一个很简单的疑问。Swartzlander说：“如果我们有翅膀形状的东西，并用光照穿过它，会发生什么事情？”
That light can have this unexpected lift effect started with a very simple question, Swartzlander says: "if we have something in the shape of a wing and we shine light through it, what happens?"
值得一提的是，这些光感细胞也是我们的大脑能接受视觉信息的关键因素。
It is only from these cells our brain can receive detailed visual information. See image below.
应用推荐