Exploring The Depths Of The Ocean

Exploring The Depths Of The Ocean book cover — Table of Contents The Ocean is the Last Frontier 4 The Ocean Is Full of Extremes Research Ships Are Floating Laboratories 8 Submersibles Go Deeper Than Ever 10 Divers Can Explore Shallow Depths 12 Observation Systems Monitor the Oceans 14 16 Strange Creatures Live in the Deep Ocean Shipwrecks Litter the Deep 18 Underwater Volcanoes Change Earth's Surface 20 Underwater Cities the Past and Our Future 22 Ocean currents Are a Possible Energy Source 24 The SeaOrbiter is an Oceangoing spaceship 26 Fact Sheet 28 Glossary 30 For More Information 31 Index 32 About the

Exploring The Depths Of The Ocean — page 1 — The Ocean is the Last Frontier For thousands of years people have how deep it was This distance was sailed Earth's oceans But what lies about six feet 1 8 m and is still below the surface has long remained used today It is called a fathom a mystery Ancient Viking sailors The weights also brought up took the first steps to finding out in samples of the soft dirt from the the 700s They dropped weights off ocean bottom The Viking sailors a long line of ships into the ocean had no way to analyze these Then they pulled them back up and samples used the arm span of a sailor to see The Vikings were the first known people to explore below the ocean's surface OOOOOOOOCEO

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