Neutral buoyancy diver maintains neutral buoyancy by continuous correction, usually by controlled breathing, as neutral buoyancy is an unstable condition for a compressible object in a liquid. The mathematician Archimedes discovered much of how buoyancy works more than 2000 years ago. In his research, Archimedes discovered that an object is buoyed up by a force equal to the weight of the water displaced by the object. In other words, an inflatable boat that displaces 100 pounds (45 kilograms) of water is buoyed up by that same weight of support. An object that floats in the water is known as being "positively" buoyant.
The Legend of Zelda: A Link to the Past to establish the musical core of the "Zelda" series. While the first game originated the "Hyrule Overture", many recurring motifs of the "Zelda" scores come from "A Link to the Past", including "Zelda's Lullaby" (Princess Zelda's Theme), "Ganondorf's Theme", "Hyrule Castle" (Royal Family Theme), "Kakariko Village" and "Select Screen/Fairy Cave". These themes have been used in subsequent "The Legend of Zelda" games. A soundtrack to "Kamigami no Triforce", entitled "The Legend of Zelda: Sound and Drama", was released by Sony Records in Japan on June 22, 1994. The first disc is 44 minutes long and features rearranged versions of a