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.
Bottles of red wine stored upside down on a wooden rack. Although all dry wines have similar calorie counts, they differ somewhat by variety. In general, red wines like cabernet, tend to have slightly more calories per serving than white wines, have slightly more alcohol, as well. For good health and to minimize calorie intake, women should limit wine intake to one or fewer glasses per day, while men should have no more than two glasses per day.