News tagged with freshness
Renewable Energy Made by Mixing Salt and Fresh Water
(PhysOrg.com) -- When a river flows into the sea, the location is more than just a haven for water commerce. The mixing of fresh and salt water that occurs at an estuary also dissipates energy, as the different ...
Technology / Energy & Green Tech
Sep 02, 2009 |
4.3 / 5 (29) |
6
Unique salt allows energy production to move inland
Production of energy from the difference between salt water and fresh water is most convenient near the oceans, but now, using an ammonium bicarbonate salt solution, Penn State researchers can combine bacterial ...
Technology / Energy & Green Tech
Mar 01, 2012 |
4.5 / 5 (15) |
2
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From ecological Soviet-era ruin, a sea is reborn
(AP) -- Standing on the shore under the relentless Central Asian sun, Badarkhan Prikeyev drew on a cigarette and squinted into the distance as one fishing boat after another returned with the day's catch.
Oct 25, 2009 |
4.4 / 5 (11) |
3
Crowded Earth: how many is too many?
Already straining to host seven billion souls, Earth is set to teem with billions more, and only a revolution in the use of resources can avert an environmental crunch, experts say.
Other Sciences / Social Sciences
Oct 23, 2011 |
4.2 / 5 (10) |
144
Shocking new way to create nanoporous materials revealed
Scientists have developed a new method of creating nanoporous materials with potential applications in everything from water purification to chemical sensors.
Nanotechnology / Nanomaterials
Nov 27, 2011 |
4.4 / 5 (9) |
4
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Study sheds light on how heat is transported to Greenland glaciers
Warmer air is only part of the story when it comes to Greenland's rapidly melting ice sheet. New research by scientists at Woods Hole Oceanographic Institution (WHOI) highlights the role ocean circulation ...
Space & Earth / Earth Sciences
Mar 28, 2011 |
5 / 5 (7) |
0
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Desalinating seawater with minimal energy use
At a pilot facility in Singapore, Siemens has cut the energy needed to desalinate seawater by more than 50 percent. The plant processes 50 cubic meters of water per day, consuming only 1.5 kilowatt-hours of ...
Technology / Energy & Green Tech
Jul 12, 2011 |
5 / 5 (7) |
2
Research discovers underground pockets of water, natural gas
(PhysOrg.com) -- Look out below! That's the warning a University of Alberta geophysics researcher has for hydrocarbon and water drillers after discovering uncharted land forms beneath the surface of the province. Deep valleys, ...
Space & Earth / Earth Sciences
Oct 14, 2009 |
4 / 5 (8) |
1
Small clique of nations found to dominate global trading web of food, water
It's not easy, or economically feasible, to ship freshwater across the globe. But when scientists use food as a proxy for that water - taking into account how much crops are irrigated and livestock are fed - they can get ...
Mar 22, 2012 |
4.7 / 5 (6) |
0
Better desalination technology key to solving world's water shortage
Over one-third of the world's population already lives in areas struggling to keep up with the demand for fresh water. By 2025, that number will nearly double. Some countries have met the challenge by tapping into natural ...
Aug 04, 2011 |
3.7 / 5 (7) |
8
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Subseafloor observatories installed to run dynamic experiments
Marine geologists have returned from two months at sea off British Columbia, Canada, where they installed two observatories in the ocean floor to run innovative experiments at the bottom of the sea.
Space & Earth / Earth Sciences
Sep 07, 2010 |
5 / 5 (5) |
0
Seeing without eyes: Hydra stinging cells respond to light
In the absence of eyes, the fresh water polyp, Hydra magnipapillata, nevertheless reacts to light. They are diurnal, hunting during the day, and are known to move, looping end over end, or contract, in res ...
Mar 04, 2012 |
4.6 / 5 (5) |
1
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Huge pool of Arctic fresh water could cool Europe
British scientists have discovered an enormous dome of fresh water in the western Arctic Ocean. They think it may result from strong Arctic winds accelerating a great clockwise ocean circulation called the ...
Space & Earth / Earth Sciences
Jan 23, 2012 |
5 / 5 (4) |
3
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Hearty bacteria help make case for life in the extreme
(PhysOrg.com) -- The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers.
Jan 19, 2012 |
4.5 / 5 (4) |
1
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In order to save biodiversity, society’s behaviour must change
(PhysOrg.com) -- Leading conservationists warn that in order to save biodiversity, society's behaviour must change.
Sep 09, 2010 |
4 / 5 (4) |
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