man in a hot air balloon A man flying in a hot air balloon realizes he's lost. He lowers the balloon, spots a man down below and shouts, ""Can you help me? I promised a friend I'd meet him half an hour ago, but I don't know where I am."" The man below says, ""Yes, you're in a hot air balloon hovering 30 feet above this field, which is at 42 degrees N. latitude and 60 degrees W. longitude."" ""You must be an engineer,"" says the balloonist. ""I am,"" replies the man. ""How did you know?"" ""Well,…