Wavy Windows

Have you ever looked at a large city office building and noticed how wavy the windows are? Did you wonder if they looked that wavy from the inside? No, I can't say that I've wondered about that, mainly because there are no such buildings in my small town, although I have briefly noticed waviness on city trips. Once inside the building, the view is fine, yet I never connected those observations. Not only does MinutePhysics answer that exact conundrum, but they explain a lot of neat things about how light and glass works.