Brandeis physicist Daniel Perlman loves wine, but hates wine stains.
So he put himself to studying — for three years — how wine flows out of wine bottles, Daniel Perlman and has finally figured out how to prevent wine from dripping down the side of the bottle.
Perlman’s invention is simple, consisting of a small groove cut into the neck of the bottle just below the lip. The groove requires liquid to fight against gravity to move down the neck of the bottle, forcing the liquid to drip into the cup rather than down the side of the bottle.
Perlman is currently talking to bottle manufacturers about implementing his design in their products. So raise a glass this Passover, the festival meal celebrating the exodus from Egypt that requires drinking four glasses of kosher wine, to stain-free tablecloths next year.