This book is for the person who is considering a career in commercial diving or who is enrolled in commercial diving school. It presents the facts, both good and bad, about careers in commercial diving. It covers all aspects of the field, from choosing a school, to applying for a job, and how to work your way up in the industry.
Exploring the underwater world with mask, fins and snorkel is an exciting personal adventure. Snorkeling allows you to unlock the mysteries of the sea, as well as local lakes, rivers, and streams in your own backyard. Snorkeling will take you to a new world that almost anyone can enjoy, from children to adults. Using snorkeling gear, you can swim with dolphins, explore sunken ships, or capture your own lobsters for dinner. In The Simple Guide to Snorkeling Fun, Second Edition, you will learn... How to select the best gear for you How to don and use your gear properly How to interact with marine life How to extend your breath-hold time underwater How to get started in spearfishing and underwater hunting Snorkeling hints and secrets that you can use no matter where you enjoy the water
This best-selling reference guide contains the most reliable and up-to-date material on launch programs in Brazil, China, Europe, India, Israel, Japan, Russia, Ukraine, and the United States. Packed with illustrations and figures, the third edition has been extensively updated and expanded, and offers a quick and easy data retrieval source for policymakers, planners, engineers, launch buyers, and students.
The Evolution of Paleolithic Technologies provides a novel perspective on long-term trajectories of evolutionary change in Paleolithic tools and tool-makers. Members of the human lineage have been producing stone tools for more than 3 million years. These artefacts provide key evidence for important evolutionary developments in hominin behaviour and cognition. Avoiding conventional approaches based on progressive stages of development, this book instead examines global trends in six separate dimensions of technological behaviour between 2.6 million and 10,000 years ago. Combining these independent trends results in both a broader and a more finely punctuated perspective on key intervals of change in hominin behaviour. To draw this picture together, the concluding section explores behavioural, cognitive, and demographic implications of developments in material culture and technological procedures at seven key intervals during the Pleistocene. Researchers interested in Paleolithic archaeology will find this book invaluable. It will also be of interest to archaeologists researching stone tool technology and to students of human evolution and behavioural change in prehistory.
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