News tagged with seawater
Related topics: ocean acidification , water , carbon dioxide , ocean , calcium carbonate
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.
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Researchers have discovered how the tongue detects high concentrations of salt, the first step in a salt-avoiding behavior common to most mammals. The findings could serve as a springboard for the development of taste modulators ...
Health Feb 13, 2013 | 5 / 5 (1) | 1 |
New research from CASH (Consensus Action on Salt and Health) at Queen Mary, University of London, has revealed the unnecessarily high levels of salt in a staple of the country's shopping baskets – cheese.
Health Nov 29, 2012 | 5 / 5 (1) | 0
A new study has discovered viruses in almost 40 % of more than 1,400 bathing water samples collected from coastal and inland areas in 9 European countries. The findings, presented in the journal Water Research, sugges ...
Health Jul 13, 2011 | 3 / 5 (1) | 0
Since the smoking ban in restaurants, bars and nightclubs, customers are more aware of unpleasant smells, such as body odors and the smell of old beer, that used to be masked by cigarette smoke. Now science is looking at ...
Psychology & Psychiatry May 17, 2011 | not rated yet | 0 |