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Articles of the Month
Basic Diving Article
Technical Diving Article
Conservation Awareness in the Dive Community
by Ben Chisholm
Thousands of divers take to the world’s
waters every year with different aspirations. Some want to relax, some want to escape,
others to explore, and even others to dream. The beauty of our sport is this: diving
offers unlimited rewards and pleasures to people from every background and profession
imaginable. We all know what we enjoy the most; whether it is wrecks, sharks, deep
dives, pristine shallow reefs... we connect with like-minded people and go. Creating
communities that look out for one another, keeping each other up to date on issues,
opportunities, dive stories, and dive news because we know it’s our passion.
In these communities, dive buddies
become life long friends, local dive shops become as frequented and casual as local
bars. Everyone shares the same sense of adventure, a drive to see the unseen, to
explore a world that is known only by few, and a mystery to so many. And what is
at the center of these communities, the one thing that relates all of us together…the
ocean…the underwater world that many spend every vacation day of their life exploring.
Without the ocean there is no sport, no colonies of coral reefs, no schools of hammerheads,
and no magnificent dolphin or turtle encounters. Our livelihood depends on it and
now it depends on us.
If it's adventure that you're after, then you've come to the right place!
Southern Africa offers diving and wildlife experiences beyond your wildest dreams.
Whether your dream is to dive with the Great White Shark or the Whale
Shark or whether you would just like to relax and enjoy the antics of the Whales
and Dolphins, taking in some beautiful coral diving along the way, then you have
come to the right place. Southern Africa has it all and more.
Scuba diving in South Africa is of a high standard, with all major organization's
qualifications being recognized. Southern African hospitality is known to exceed
many foreign visitors’ expectations, and you also have the exciting option of adding
on a Wildlife Safari to your Scuba Diving Safari, ensuring that you experience the
best of both worlds, land and underwater!
In South Africa, the coastline ranges from about 35°S to 27°S, and that
means that one has a choice of diving in the cold waters of the Cape Province, the
warmer waters of KwaZulu Natal or the tropical waters of Mozambique.
Basic Decompression Theory and Application, Second Edition
by Bruce R. Wienke
Book Description The new 2nd Edition of Basic Decompression Theory And Application has been
extended, updated, with new material added. It takes all rudiments of decompression
theory and phase mechanics to considerable depth, while focusing on diving applications
in an historical perspective. Topics span many disciplines, and the targeted audience
is the commercial diver, hyperbaric scientist, doctor, physical scientist, technical
diver, and instructor. Recent developments in diving tables, decompression meters,
and decompression management software are presented, and broad model underpinnings
are detailed and contrasted. Testing and validation of modern dual phase approaches
to staging for decompression, extended range, altitude, and mixed gas diving are
a focus of discussion. Deep stops, optimal gas switches, and helium mixes are underscored
from diver experience, data, and coarse grain principles. References and numerical
examples (with solutions) are included for more detail and extended diver analysis.
The monograph is a ten part series, touching upon diving aspects of thermodynamics,
pressure and density, flow mechanics, gas kinetics, free and dissolved phase transfer,
gas counter transport, nucleation and cavitation, bubbles and surfactants, statistics,
DCS and oxygen toxicity risk. Computational schemes popularly employed in the technical
diving sector are developed. New material and updated information are woven into
the fabric of the earlier version. The 1st Edition of this monograph was a sellout
in the diving community, and the 2nd Edition is much more detailed, comprehensive,
and modern in panorama.
About the Author
Bruce Wienke is a Program Manager in the Nuclear Weapons Technology/ Simulation
and Computing Office at the Los Alamos National Laboratory (LANL), with interests
in computational decompression and models, gas transport, and phase mechanics. He
heads the LANL Nuclear Counter Measures Dive Team involving Special Warfare Units
both above and below the water.
In addition, he is an Instructor Trainer/Technical Instructor with NAUI,
a Master Instructor with PADI , Institute Director for YMCA, and an Instructor Trainer/Technical
Instructor for SDI/TDI. He has authored 5 monographs, over 200 technical journal
articles and is an active contributor to underwater symposia, educational publications,
technical periodicals and decompression workshops. He currently serves as a consultant
for decompression algorithms in the industry, and works with DAN on applications
of high performance computing and communications for diving.
