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.
Rule according to higher law Rule according to higher law The rule according to a higher law means that no law may be enforced by the government unless it conforms with certain universal principles (written or unwritten) of fairness, morality, and justice. Thus, "the rule according to a higher law" may serve as a practical legal criterion to qualify the instances of political or economical decision-making, when a government, even though acting in conformity with clearly defined and properly enacted legal rules, still produces results which many observers find unfair or unjust. The idea of a law of ultimate justice over and above the momentary