I read in a book about a man who saw the sun reflected off a distant object on a mountain some 73 miles away in clear visibility. He saw this on many occasions and always wondered what it could be. He states that he asked two of his friends who were going that way if they would check it out for him. Some days later after his friends returned, then said they had no problem finding it. It turned out to be a bottle. I find this hard to believe. Surely the reflection could only be seen at a certain angle and as soon as one strays a short distance out of that angle, the reflected light from the bottle could not be seen? Not only that but by the time those looking for it had travelled a few hours, the angle of the sun would also have changed. So how on earth could they locate a bottle on a huge mountain? When one gets to that mountain, they would have had a huge area to search. Surely they would have no way of knowing that was the source of reflected light? The other question is, could the reflected light from a mere bottle travel 73 miles?