Physics : Light 5

Hello, everyone who likes physics ⚙️🧲💻 I think it has been discovered that I don’t have much time here. Therefore I have to say thank you for those days your encouragement and love. Besides have to say apologize that I really have to be back to my life. Babies and children are always the group who are filled with original creativity and the brave to love dreams. Don’t feel frustrated when you fail, just think that is luck because when you are so little, you have know it is impossible. Today we talk about the electromagnetic wave. Light is a kind of it. When you have known the UV ray is a high frequency wave, you can imagine how harmful it is to our skin. Always love you all❤️ Finally, I want to appreciate the past time when I was so toilsome with the school study my classmates. Especially the classmate Lee and classmate Tsai, the two scientific good classmates.