Imagine pouring wine slowly from a bottle into a glass. As you look down on the bottle at any instant, the wine’s surface can be seen to touch the inside of the bottle along an elegant perimeter shape. An instant later, some wine has left the bottle and the perimeter has moved downwards, taking up a different perimeter shape.
Today’s invention is to mark a series of these perimeters on bottles, during their manufacture, at vertical intervals corresponding to eg 1 unit of alcohol.
This would allow someone serving wine to monitor exactly how much went into each glass and thus protect the health/ driving licence of the drinker.
