Nice list, like it. Let me add my favorite: Wet air is actually lighter than dry air. Consider an ideal gas. H₂O is lighter than both N₂ and O₂. Now water repl

Nice list, like it. Let me add my favorite: Wet air is actually lighter than dry air. Consider an ideal gas. H₂O is lighter than both N₂ and O₂. Now water replaces some of the oxygen and nitrogen ...