Robotics
All summer, the small boat drifted steadily eastward across the churning North Atlantic until it neared the Irish coast, where it made history by becoming the first unmanned sailboat to cross the Atlantic.
Sep 4, 2018
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62
Robotics
The open ocean is the largest and least explored environment on Earth, estimated to hold up to a million species that have yet to be described. However, many of those organisms are soft-bodied—like jellyfish, squid, and ...
Jul 18, 2018
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66
Engineering
Observing the world's oceans is increasingly a mission assigned to autonomous underwater vehicles (AUVs)—marine robots that are designed to drift, drive, or glide through the ocean without any real-time input from human ...
May 10, 2018
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20
Energy & Green Tech
There is considerable opportunity for generating wind power in the open ocean, particularly the North Atlantic, according to new research from Carnegie's Anna Possner and Ken Caldeira. Their work is published by Proceedings ...
Oct 9, 2017
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271
Energy & Green Tech
An international research team led by scientists at The University of Texas at Dallas and Hanyang University in South Korea has developed high-tech yarns that generate electricity when they are stretched or twisted.
Aug 24, 2017
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7612
Energy & Green Tech
One of the biggest untapped clean energy sources on the planet — wave energy — could one day power millions of homes across the U.S. But more than a century after the first tests of the power of ocean waves, it is still ...
Oct 13, 2016
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18
Energy & Green Tech
The world's oceans contain an enormous amount of energy in the form of waves, and researchers are trying to harness that energy for human use. However, most wave power stations today are still in the early stages of development, ...
An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt.
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