Refraction is merely one of several possible boundary behaviors by which a light wave could behave when it encounters a new medium or an obstacle in its path. The transmission of light across a boundary between two media is accompanied by a change in both the speed and wavelength of the wave. The light wave not only changes directions at the boundary, it also speeds up or slows down and transforms into a wave with a larger or a shorter wavelength.
Each varietal of red wine has a slightly different calorie content. According to the USDA, an average red table wine contains 125 calories for every 5 fl oz, or approximately 625 calories in a bottle. Syrah, Merlot and Cabernet Sauvignon have 122 calories in 5 fl oz, or 610 calories per bottle. A Pinot Noir has slightly fewer calories -- 121 calories in 5 fl oz, or 605 calories per bottle.
Dry white wine is the least fattening type of wine, followed by dry red wine and then sweet wines of either color. For the lowest calories, about 75 to 90 per serving, choose a dry chardonnay, sauvignon blanc or dry champagne. If you prefer red, choose burgundy, merlot or sauvignon cabernet. To drink one serving of wine, pour only 4 oz. â less than half of a standard wine goblet.