Hasta La Ideas

At Brandeis University, biophysicist Dan Perlman has invented a wine bottle that won’t drip.”Using a diamond-studded tool, Perlman, assisted by engineer Greg Widberg, created a circular groove around the neck of the bottle just beneath the top. A droplet of wine that would otherwise run down the side of the bottle encounters the groove, but can’t traverse it. Instead, it immediately falls off the bottle into the glass along with the rest of the wine. Remember that when you pour a full or nearly-full bottle of wine, you hold it at a slightly upward angle in relation to the glass. For a drop of wine to make it across Perlman’s groove, it would have to travel up inside the groove against the force of gravity or have enough momentum to jump from one side of the groove to the other. After many tests, Perlman found the perfect width, roughly 2 millimeters, and depth, roughly 1 millimeter, for the groove so that the wine stream can’t get passed it.” [ link ]..(Read…)