Light Absorption   13 Jun 2005 20:24
Look beneath the ocean’s surface, and you will instantly see how water transforms light. Colors appear differently because water scatters the cooler colors like blue (known as short wavelength light) and absorbs warm bright colors like yellow and red (known as long wavelength light).

Diving Phisics   12 Jun 2005 18:25
Air is a gas. Gases have various properties which we can observe with our senses, including the gas pressure (p), temperature, mass, and the volume (V) which contains the gas.

Technical Diving   12 Jun 2005 17:13
Technical diving is a term used to describe all diving methods that exceed the limits imposed on depth and/or immersion time for recreational scuba diving. Technical diving often involves the use of special gas mixtures (other than compressed air) for breathing.

Scuba Diving Organizations   12 Jun 2005 17:05

Sign Language   12 Jun 2005 16:36
Sign language has always been an integral part of diving.  Communication with your buddies makes it easier and safer to stick to the dive plan and avoid confusion.

Scuba Diving History   12 Jun 2005 16:13
Although there is no official record of the first underwater adventure early Persian records tell of a diver being sent into the ocean depths to salvage sunken treasure in the fifth century BC.

Introduction to Scuba Diving   12 Jun 2005 15:32
The self-contained underwater breathing apparatus (SCUBA) or scuba diving system, as we know it today, is the result of innovations and technological developments that began almost 300 years ago.