A cracked window during a storm made me question how sound moves
I always assumed sound speed was constant in air. When my window broke in a thunderstorm, I saw the flash before the noise. But the sound from the crack took extra time to reach me, bouncing off nearby buildings. This made me look up how temperature and pressure affect sound waves. Now I see it's more complex than just distance.
My old apartment in Chicago had an alley like that. The echo would carry voices from three blocks over on quiet nights. It felt like the whole neighborhood was sharing one conversation. There's something lonely but also comforting about sound traveling that far without anyone seeing you. Makes you feel connected to a place in a weird way. Did your friend ever try to talk back to their own echo?