I remember sticking my head out the window when we went around a curve so I could get a good look at the steam engine chugging away, it was such an awesome view. Then my mother would chew me out because I was covered from head to foot in soot from the engine. Nowadays I don’t think you even can stick your head out the window.
Well, I did, and as soon as I saw the meaning of pendulous I realized it was probably self explanatory.