What happened to Liu Qian's performance in the Spring Festival Evening this year?

Coin through glass is a quick word. You know, the human eye processes image information to a certain extent. If it exceeds the human eye, it can't be seen clearly, or it can't be seen with books. This is a coin used to wear glass. It's more complicated to reach into the glass. The cost of doing this magic trick can be said to be amazing. This is a series of complicated optical effects caused by light refraction, specular reflection and stereoscopic position effect. Hehe, the hand didn't really go through the glass, just stretched out from below ... If you look from the bottom up, you can see the problem. The principle is somewhat similar to that of a 3D movie. Don't always try to understand the principle of magic ... the magic of magic is that you don't know what happened. Just watch the fun.