THE COVERS Articles & Editorials DECEMBER 1999 • Volume 9 - NO 12 
  
By Steve and Janet Simonsen
Ever stop to consider that while you're underwater, the laws of physics are hard at work; and they affect everything about your dive? In this month's cover feature, author Alex Brylske pokes a little fun at Boyle, Charles, Dalton and Henry in his article "Reinventing the Gas Laws: An Irreverent Guide to the Physics of Diving."
FEATURES
24 Reinventing the Gas Laws:
Contrary to popular belief, learning the gas laws is a very simple and straightforward exercise where common sense is far more important than higher math skills. But in case someone has already confused your mind with names such as Boyle, Charles, Dalton and Henry - relax; there's an easier way. What you're about to learn are the laws of The Big Squeeze, The Trunk, Abracadabra and The Fizzies.
By Alex Brylske
34 Marine Animal Behavior: Observation Leads
One of the first great underwater wildlife photographers was Douglas Faulkner. In his heyday of the 1960s and early 70s, Doug's photos in Life and National Geographic depicted fish activities rarely seen before: cleaning, mating, predation, and defense. If you are seeking a new challenge or activity underwater, the author suggests watching marine animal behaviors. He offers tips on more than merely identifying critters, but how to observe and understand what they do.
By Eric Hanauer
44 Live it Up: A Novice Diver's
Thoughts of taking a live-aboard dive cruise may conjure up visions of exploring remote, pristine dive sites whenever the mood strikes, eating bountiful meals without lifting a finger and spending plenty of time relaxing with newfound companions. On the other hand, those who have not yet experienced live-aboard diving might envision cramped quarters, seasickness and post-dive boredom. Find out just what a live-aboard dive vacation is all about.
By Linda Lee Walden
COMMENTARY
8 Editorial: Playing Santa for Divers By Alex Brylske
10 Buddy Lines: Safety in Numbers
16 Dive Observer: Mind Your Manners
A lesson in diver etiquette and other news from the diving industry
By Jeana Sciarappa-Schott
85 No Dumb Questions: Readers ask about bubbles. By Alex Brylske
DIVE EXPLORATION
70 Dive Geo: Fiji:
Positioned near the International Date Line, Fiji is reported to be the location where the first sunrise of the new millennium will appear. But millennium hype aside, Fiji's beautiful beaches, great diving, and friendly, smiling faces, will likely leave you singing, "Does anybody really know what time it is? Does anybody really care?"
By Cathryn Castle
80 Dive Traveler: Wedding Blues and Worn Out Shoes:
Foul weather and flimsy footwear may not be enough to ruin your trip or land you in the hospital, but travel and dive insurance policies can save you money - and could save your life - if something goes wrong.
By Cathryn Castle
82 Passport: Dive travel incentives around the globe
Compiled by Cathryn Castle
EVERY MONTH
53 Scuba Skills: Investing in exposure protection does not come cheap. Learn how to get the most out of your gear. By Lynn Laymon
57 Always Learning: A Public View of Scuba: It Isn't Always What You Think. How to respond when a nondiving friend or acquaintance describes scuba diving as "too dangerous." By Mark Twombly
61 Instructor Tips: An Ocean Option: Marine Parks as Training Sites
Today's marine theme parks are more interactive than ever. You may be surprised to discover some oceanariums permit snorkeling, scuba diving and even scuba diver training.
By Jan Neal
65 Eco-seas: Squid Run: squid mass-spawning event. By Marty Snyderman
76 Diving Through the Decades: The 1990s
In the conclusion of an ongoing series, we recall the events, personalities, inventions, and trends that made diving what it is today.
By Eric Hanauer
90 Smithsonian Reports
By Nancy Knowlton and Michael Lang
Edited by Alex Brylske
92 Dive Shop: Holiday Shopping... Made Easy
Compiled by Cathryn Castle
94 Book Shop: Holiday Book-Buying Guide
Compiled by Cathryn Castle
96 What's That?
In diving we naturally concentrate on what we see; some of us involve touch in underwater experiences; it's impossible to smell or taste anything in the water when you're breathing compressed air. But what can you hear?
By Dee Scarr
99 International Classifieds
101 Classifieds
105 Dive Training Quiz : Test your knowledge of the information in this month's issue
106 Final Check: What It Looks Like... When You Avoid the Christmas Tree Look
How to accessorize appropriately
By Lynn Laymon