News tagged with seawater
Robot monitors toxic red tides
A robotic device suspended under the ocean surface from a buoy off the New Hampshire coast is monitoring seawater for evidence of the red tide, clusters of microscopic plants that release toxins into fish ...
May 24, 2012 |
5 / 5 (1) |
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Research discovers impact of ocean acidification on marine life
A Plymouth University academic researching the impact of ocean acidification on marine life is finding out exactly what we can expect as our seas soak up more and more carbon dioxide.
May 21, 2012 |
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Japanese researchers using particle accelerator to breed salt resistant rice
(Phys.org) -- Japanese researchers at the Riken Nishina Centre for Accelerator-Based Science have been using their particle accelerator to cause mutations in rice for over two decades with the aim of breeding ...
May 11, 2012 |
3.7 / 5 (3) |
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Evolution in the oceans: Long-term study indicates phytoplankton can adapt to ocean acidification
Fossil fuel derived carbon dioxide has a serious impact on global climate but also a disturbing effect on the oceans, know as the other CO2 problem. When CO2 dissolves in seawater it forms carbonic acid and ...
Space & Earth / Earth Sciences
Apr 09, 2012 |
5 / 5 (1) |
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Novel approach to curing crop diseases tested
(PhysOrg.com) -- Sugar may be a treat for humans, but for aphids it can be life threatening. A $452,000 grant to Cornell and Boyce Thompson Institute for Plant Research (BTI) will fund research exploiting ...
Apr 03, 2012 |
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Expedition to undersea mountain yields new information about sub-seafloor structure
Scientists recently concluded an expedition aboard the research vessel JOIDES Resolution to learn more about Atlantis Massif, an undersea mountain, or seamount, that formed in a very different way than the ...
Space & Earth / Earth Sciences
Mar 22, 2012 |
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Fukushima lesson: Prepare for unanticipated nuclear accidents
A year after the crisis at Japan's Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, ...
Technology / Energy & Green Tech
Mar 08, 2012 |
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Volcanoes deliver two flavors of water
Seawater circulation pumps hydrogen and boron into the oceanic plates that make up the seafloor, and some of this seawater remains trapped as the plates descend into the mantle at areas called subduction zones. ...
Space & Earth / Earth Sciences
Feb 26, 2012 |
4.2 / 5 (5) |
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World's oceans get an acid bath
Among the repercussions of global climate change, the effect of ocean acidification on marine life is one of the least-understood variables.
Feb 22, 2012 |
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'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 |
3.4 / 5 (5) |
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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 |
5 / 5 (1) |
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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 |
4.3 / 5 (6) |
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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.
