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Ostrava, Czech Republic

University of Ostrava

Information Systems

Informační systémy

Language: Czech Studies in Czech

Subject area: computer science

University website: www.osu.cz

Years of study: 3

Information

Information is any entity or form that provides the answer to a question of some kind or resolves uncertainty. It is thus related to data and knowledge, as data represents values attributed to parameters, and knowledge signifies understanding of real things or abstract concepts. As it regards data, the information's existence is not necessarily coupled to an observer (it exists beyond an event horizon, for example), while in the case of knowledge, the information requires a cognitive observer.

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Information

Do not seek for information of which you cannot make use.

Anna C. Brackett (1836–1911), American author. The Technique of Rest, Ch. 2 (1892).

Wikiquote

Information

It used to be said that information is power. As w:Arthur Sulzberger Jr., chairman of the board of the New York Times Co., rightly says, "Information is now ubiquitous. Power is understanding."

Martin Kaiser, in INFORMATION: The news will be exciting and so will the medium Milwaukee Journal Sentinel, 2 January 2000.

Wikiquote

Information

We don't know a millionth of one percent about anything.

Thomas Edison, As quoted in Golden Book (April 1931), according to Stevenson's Book of Quotations (Cassell 3rd edition 1938) by Burton Egbert Stevenson.

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Physical sciences, Earth sciences

Salinity gradient energy provides green solution

The amount of energy potentially available from the difference in the salt concentrations of seawater and river water around the world is 1.4 to 2.6 terawatts, or about 20 % of local electricity consumption. This natural process does not produce carbon dioxide or any other polluting combustion emissions, nor does it result in thermal pollution.

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