What is Free Air?
Free air refers to air at atmospheric pressure, which is the pressure exerted by the weight of air in the Earth’s atmosphere. In the context of scuba diving, understanding the concept of free air is crucial for managing various aspects of dive planning and safety, including buoyancy, gas consumption, and decompression sickness. This entry will delve into the relationship between free air and compressed air, and how this understanding impacts diving practices.
What is Residual Nitrogen Time?
The world of scuba diving is one that demands attention to detail, respect for the natural world, and an understanding of physics and physiology principles. One crucial concept in this respect is that of “Residual Nitrogen Time” (RNT), an integral part of dive planning that influences dive safety, duration, and depth. This concept revolves around the body’s nitrogen absorption and release processes, directly tied to decompression sickness prevention.
What is a Repetitive Dive?
A repetitive dive is a dive that takes place after a previous dive within a certain period, usually within the same day. The critical aspect of a repetitive dive is the residual nitrogen that remains in the diver’s body from the previous dive. This residual nitrogen affects how subsequent dives are planned and executed to avoid decompression sickness, commonly known as “the bends.” Understanding repetitive dives is essential for divers to manage their dive profiles safely and to maximize their underwater experience without compromising their health.
What is Surface Interval?
What is Surface Interval? In scuba diving, the term “Surface Interval” refers to the length of time a diver spends at the surface between two consecutive dives. It is a significant concept in dive planning, safety, and decompression theory, which helps to minimize the risk of decompression sickness, commonly known as “the bends.” Importance of […]