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sunspots

(Encyclopedia) sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower…

power, electric

(Encyclopedia) power, electric, energy dissipated in an electrical or electronic circuit or device per unit of time. The electrical energy supplied by a current to an appliance enables it to do work…

Tajikistan

(Encyclopedia) Tajikistan təjĭkĭstän´, officially Republic of Tajikistan, republic (2015 est. pop. 8,192,000), 55,251 sq mi (143,100 sq km), central Asia. It borders on China in the east, Afghanistan…

Fuel Cell FAQs

The following frequently asked questions about fuel cells were provided courtesy of Fuel Cells 2000, a nonprofit advocacy organization. What is a fuel cell? In principle, a fuel cell operates like…

Colombia

(Encyclopedia) Colombia kəlŭm´bēə, Span. kōlōm´byä, officially Republic of Colombia, republic (2015 est. pop. 48,229,000), 439,735 sq mi (1,138,914 sq km), NW South America. Bogotá is the capital and…

Y2K: Almost Scot-Free

No News is Bad News To Some by Gerry Brown In Seattle, Y2K celebrations around the space needle were toned down in response to terrorist rumblings. (photo source: arttoday.com) Related…

November 2003

WorldU.S. Helicopter Downed in Iraq (Nov. 2) In the single deadliest strike since the Iraq war began, guerrillas shoot down an American helicopter, killing 16 U.S. soldiers and injuring 21…