Excellent! 👍 I wish this video were produced decades ago and used as part of my Physics classroom material when I was in college with Mathematics major. Although I passed my Physics class exam during my freshman year in college, now it seems that I'm going back to college again to refresh what I learned decades ago! Ha! Ha! This video makes science more interesting than ever! Thank you very much for sharing. Everyday is a learning day for us! 😊
Thank you very much for your systematic explanation. I am an old man who has left school nealy fifty years, I like physics very much, especially optics, which is an abstract subject, I hope to watch more such programs. LIKE 👍