The Blackout reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Blackout

The term blackout refers to a cessation of electromagnetic activity through electric power transmission systems.

In general during peacetime, a blackout is an unintentional total electrical power outage. It is sometimes contrasted with the term brownout which is a reduction in power, and selected power outages, when demand exceeds supply.

However a blackout can be intentional, for instance collectively minimizing external light (during war), including upwards directed (or reflected) light, to "hide" from enemy aircraft (in the case of an occupied country: the enemy of the occupying force). Additionally, intentional blackouts can be used in costal regions to prevent city lights from outlining ships (shore-side blackouts). This makes ships hard to be seen by enemy submarines.

See also

• 2003 North America blackout
• Northeast Blackout of 1965
• communications blackout
• List of power outages

Alternate meanings

• Alternatively, blackout can mean a short dysfunctioning of the brain (loss of consciousness or not being able to think well).
• In theater, a blackout is the act of turning off all the stage lights, for whatever duration of time.
• Blackout is also the name of a 1982 album by The Scorpions

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