货号：KX821
Material：拉线牙箱
尺寸：15*12CM
Packing：500 PCS
Packaging：OPPbag+彩色说明书
箱规：60*50*55 CM

Humans can temporarily preserve the images they see，After the image vanished，The previous images will still remain before my eyes for the time being。This is the basic principle of moving cartoons，Called「Persistence of vision」。

Teaching Objectives：1.能学到和体验Persistence of vision现象
2.Be able to learn about movies Television Animation All of them apply this principle
3.One can experience the joy of the experimental process
4.oneselfDIYCaged bird，锻炼动手能力

Because the image of the bird will temporarily remain before our eyes，Therefore，When the card is turned to the side of the birdcage?The images of the birds will overlap on the birdcage，It looks as if the bird is in a cage！ Television画面重现的原理 The image on the screen is actually composed of thirty consecutive independent surfaces per second！They were originally individual frames of pictures。 The picture tube constantly transmits one picture after another，And these scenes one by one，Due to the phenomenon of persistence of vision in humans， It looks like a continuous moving picture，这就是Television能将动作重现的原因。 And persistence of vision is when our eyes look at anything，All of them will generate a very brief memory。Write down these memories， Be connected together，Then we will see the action，"Produced『The scenes are continuous.』An illusion，This is persistence of vision！It's like turning off the lights in a room，Spin the flashlight rapidly，You will see a halo，这也是Persistence of vision的一种现象。