Windows on planes
We know that feeling when you are sitting on a plane and you look at the window next to you and then you begin to panic. You see a small hole in the window and think to yourself that you should try to plug it or call someone for help. But do not freak out just yet.
There is a reason why that hole is there and it is for your own safety. The holes in the airplane windows are for cabin pressure. Without those small holes to release some of that pressure, they would shatter and everything would get bad really quickly. Engineers want you to go on living at the end of the day after all.