Ultrabooks are distinguished from netbooks by offering more power in the form of faster processors and additional RAM, as well as better storage and larger screen sizes, features that also make these laptops significantly more expensive than most netbooks.
Desalination is a process that extracts minerals from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination, which is an issue for agriculture. Saltwater is desalinated to produce water suitable for human consumption or irrigation. One by-product of desalination is salt.
âSea water may be desalinated if passed through sand, for the particles of sand obstruct the long, rigid particles of salt while letting water particles through.â âThe disadvantage in desalinating seawater is that it is very energy hungry, and we find that the cost is at least double that of producing a very high quality from a municipal wastewater.â