▲ 11 ▼ if we combined all the exhaust pipes from all the ICE engines on earth, I wonder what the diameter of this super tailpipe would be ? (lemmy.world) submitted 2 months ago by Karmanopoly@lemmy.world to c/showerthoughts@lemmy.world 10 comments fedilink hide all child comments There has to be billions of tailpipes...most around 2 or 3 inches in diameter.