There are many diver training organizations and thousands of professional diving educators. Your phone book might list diving businesses that offer sanctioned courses. Many universities, community colleges, and recreational departments also offer scuba courses.
An object’s ability to float in a liquid depends on the density of the object compared with the density of the fluid in which the object is immersed. Water exerts pressure equally in all directions, even upward. You can feel the upward force (buoyancy) of water when you try to push something under the water.
The best-selling authoritative guide returns, packed with the latest
recommendations, dive tables, and instruction. Full-color photographs
and illustrations depict the latest equipment, gear selection, dive
locations, technologies, and techniques. Scuba Diving is an
indispensable resource for preparation, management, and enjoyment of
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The best-selling authoritative resource returns updated and better than ever.
Scuba Diving, Fifth Edition, is the most up-to-date resource for experiencing secure, satisfying dives. Packed with full-color photographs and detailed diving instruction, this is the ideal companion for recreational divers, diving instructors, and students.
Veteran instructor Dennis Graver shares the latest research, science, and recommendations as well as nearly 40 years of diving experience. He demystifies complex topics such as gas laws and the physics and physiology of scuba. You’ll also learn these skills:
Equalize pressure in the sinuses, ears, and mask.
Follow boat diving and buddy check procedures.
Master the nuances of dive planning and decompression so that every dive is safe and enjoyable.
Choose, use, and maintain scuba equipment.
Safely enjoy the underwater environment, including aquatic wildlife.
Prevent or manage underwater emergencies and hazards.
In this new edition you’ll find Application of Knowledge (AOK) questions and answers. For the first time, you’ll be able to apply the information and guidelines to real-world scuba problems, making you better prepared for those unexpected situations you might encounter.
Whether you are a beginning or intermediate diver or diving instructor, make sure you have all the bases covered before you go underwater. Scuba Diving will ensure a safe, successful, and rewarding dive every time you take the plunge.
Dennis Graver has been a scuba instructor and instructor trainer
since 1968. He has written 27 books and manuals on the subject,
including four previous editions of Scuba Diving published by Human
Kinetics. As director of training for the Professional Association of
Diving Instructors (PADI), he designed the PADI modular scuba course and
wrote the PADI Dive Manual, which revolutionized scuba
instruction. During his tenure as director of education for the National
Association of Underwater Instructors (NAUI), Graver wrote several
diving texts and manuals, including the NAUI Open Water I Scuba Diver
Course Instructor Guide. He has contributed hundreds of articles on
diving to magazines such as Skin Diver, Sources, and Undercurrents
as well as several NAUI technical publications.
Merging twin passions, Graver has expertly photographed many wonders
under the water from the Red Sea off the coast of Egypt to the barrier
reefs of Australia. He has won numerous awards from the Underwater
Photographic Society, and his photos have graced the covers of numerous
magazines and illustrated several diving texts and audiovisual
Graver and his wife, Barbara, live in Camano Island, Washington.