News tagged with seawater
'Pyramids' planted to revive Philippine corals
Thousands of small "pyramids" are being planted off the Philippines' famous Boracay resort island in an effort to bring its nearly destroyed coral reefs back to life, an environment group said Thursday.
Feb 09, 2012 |
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How seawater could corrode nuclear fuel
Japan used seawater to cool nuclear fuel at the stricken Fukushima-Daiichi nuclear plant after the tsunami in March 2011 -- and that was probably the best action to take at the time, says Professor Alexandra ...
Jan 26, 2012 |
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Broadcast study of ocean acidification to date helps scientists evaluate effects on marine life
Might a penguin's next meal be affected by the exhaust from your tailpipe? The answer may be yes, when you add your exhaust fumes to the total amount of carbon dioxide lofted into the atmosphere by humans ...
Jan 23, 2012 |
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A salt-free primordial soup?
Most scientists who study the origin of life assume that it occurred in the ocean. But a minority view is that ions in seawater may interfere with prebiotic chemistry, making a freshwater environment more ...
Jan 19, 2012 |
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Japan plans futuristic farm in disaster zone
Japan is planning a futuristic farm where robots do the lifting in an experimental project on land swamped by the March tsunami, the government said Thursday.
Technology / Hi Tech & Innovation
Jan 05, 2012 |
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Comprehensive study makes key findings of ocean pH variations
A group of 19 scientists from five research organizations have conducted the broadest field study of ocean acidification to date using sensors developed at Scripps Institution of Oceanography, UC San Diego.
Dec 22, 2011 |
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Bay wetlands may face losing battle against sea level rise
(PhysOrg.com) -- San Francisco Bay's tidal marshes may face a grave threat from sea level rise in the next century, according to a new study published by a group of scientists, including Professor of Biology ...
Space & Earth / Earth Sciences
Dec 13, 2011 |
3 / 5 (6) |
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Zeolite synthesis made easy
Zeolites are porous materials with perfectly regular pores and high surface area that can act as molecular sieves. This property has led to important applications including the purification of air or water such as the contaminated ...
Dec 12, 2011 |
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Japan scientists study oyster 'language'
Scientists in Japan have begun studying the "language" of oysters in an effort to find out what they are saying about their environment.
Dec 06, 2011 |
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Submarine springs offer preview of ocean acidification effects on coral reefs
Observations at submarine springs found along the coast of Mexico's Yucatan Peninsula are giving scientists a preview of the possible fate of coral reef ecosystems in response to ocean acidification.
Nov 28, 2011 |
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First controlled experiments on ocean acidification in the deep sea
(PhysOrg.com) -- After six years of design and testing, MBARI scientists have a sophisticated new tool for studying the effects of ocean acidification on deep-sea animals. This complex system, the Free-Ocean ...
Space & Earth / Earth Sciences
Nov 15, 2011 |
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Increased acidity not an even test for coral reefs
Coral reefs can both positively and negatively influence the acidity of their surrounding seawater. That is the take-home message of two papers recently published in the international journal Global Change Bi ...
Nov 10, 2011 |
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Researchers fight to save recently uncovered German World War II bomber plane
Researchers from the United Kingdom are taking part in an attempt to rescue the last remaining intact World War II German light bomber Dornier Do 17, which has been submerged underwater in the English Channel ...
Nov 07, 2011 |
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Fukushima nuke pollution in sea 'was world's worst'
France's nuclear monitor said on Thursday that the amount of caesium 137 that leaked into the Pacific from the Fukushima disaster was the greatest single nuclear contamination of the sea ever seen.
Oct 27, 2011 |
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Researchers explore plankton's shifting role in deep sea carbon storage
The tiny phytoplankton Emiliania huxleyi, invisible to the naked eye, plays an outsized role in drawing carbon from the atmosphere and sequestering it deep in the seas. But this role may change as ocean water becomes warmer ...
Space & Earth / Earth Sciences
Oct 13, 2011 |
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Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every 1 kg of seawater has approximately 35 grams of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl-). The average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts. The freezing point of sea water decreases with increasing salinity and is about -2°C (28.4°F) at 35 gram per liter.
For more information about Seawater, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
