Dive Theory - Simple Explanations of the Physics and Physiology of Scuba Diving
Dive theory is essential for safe diving. Divers should know recommended diving practices, but more importantly, they must understand the concepts behind those rules. The goal is that scuba diving students graduate with a working knowledge of the physics and physiology of diving, as well as the ability to apply that knowledge to unexpected situations. This page lists concepts that every scuba diver needs to understand to dive safely.
Dive Theory Essentials
A brief overview of theory topics that all scuba divers should be familiar with.
Ear Equalization Basics
How do scuba divers equalize their ear pressure to avoid ear pain when diving? Learn about the Valsalva maneuver and other ear equalization techniques, as well as how to deal with common equalization problems.
Buoyancy Basics for Scuba Diving
An understanding of buoyancy is key to safe and easy scuba diving. While the concept of buoyancy may be confusing at first, it becomes clearer...
How Does Pressure Effect Scuba Divers?
Water pressure increases with depth. Water pressure effects almost all aspects of scuba diving, include equalization, buoyancy, bottom times, and the risk of decompression sickness (DCS). Review basic dive theory regarding depth and pressure in scuba diving.
Air Consumption Rates for Scuba Diving - SAC Rates, RMV Rates, Easy Calculations
What is your air consumption rate? Learn about air consumption rates, how to calculate them, and how to use them to plan a dive.
The Sponge Analogy - Understanding Nitrogen Absorption
Does the concept of nitrogen absorption confuse you? The sponge analogy is an simple tool to help scuba divers understand how their bodies absorb and off-gas nitrogen when diving.
Boyle's Law and Scuba Diving
Boyle's Law, PV=c, is useful in scuba diving because Boyle's Law helps scuba divers predict how air will expand and compress with water pressure. Read an explanation of Boyle's Law and how it applies to scuba diving.
Scuba Diving Pranks - What Is Prank You Have Pulled on a Fellow Scuba Diver
What Is the best prank that you have pulled on a fellow scuba diver? Read about other scuba diver's pranks and share your own here.