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Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam.
The ability to control fire was a dramatic change in the habits of early humans. [15] Making fire to generate heat and light made it possible for people to cook food, simultaneously increasing the variety and availability of nutrients and reducing disease by killing pathogenic microorganisms in the food. [ 16 ]
Topographic map of Australia (dark green represents the lowest elevation and dark brown the highest) Surrounded by the Indian and Pacific oceans, [ N 7 ] Australia is separated from Asia by the Arafura and Timor seas, with the Coral Sea lying off the Queensland coast, and the Tasman Sea lying between Australia and New Zealand.
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This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. Inhabited space station in low Earth orbit (1998–present) "ISS" redirects here. For other uses, see ISS (disambiguation). International Space Station (ISS) Oblique underside view in November 2021 International Space Station programme emblem with flags of the original signatory states ...
A fire naturally occurs when the elements are present and combined in the right mixture. [3] A fire can be prevented or extinguished by removing any one of the elements in the fire triangle. For example, covering a fire with a fire blanket blocks oxygen and can extinguish a fire. In large fires where firefighters are called in, decreasing the ...
Human hair ranges in color from red to blond to brown to black, which is the most frequent. [247] Hair color depends on the amount of melanin, with concentrations fading with increased age, leading to grey or even white hair. Skin color can range from darkest brown to lightest peach, or even nearly white or colorless in cases of albinism. [248]
California (/ ˌ k æ l ɪ ˈ f ɔːr n j ə /) is a state in the Western Region of the United States that lies on the Pacific Coast.It borders Oregon to the north, Nevada and Arizona to the east, and shares an international border with the Mexican state of Baja California to the south.