Natural phenomenon
A natural phenomenon is an observable event which is not man-made. Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, and earthquakes.[1][2]
Exposure to forces of nature[vague] resulted in about 214,000 deaths in 2010, up from 31,000 in 1990.[3]
Types[edit]
Types of natural phenomena include, but are not limited to, the following.
Biological[edit]
- Decomposition – by which organic substances are broken down into a much simpler form of matter
- Metabolism
- Catabolism
- Anabolism
- Fermentation – converts sugar to acids, gases and/or alcohol.
- Growth
- Population growth
- Overpopulation growth beyond carrying capacity
Chemical[edit]
Geological[edit]
Geological processes include erosion, sedimentation, and volcanic activities such as geysers and earthquakes.
Meteorological[edit]
Violent Meteorological phenomena are called storms. Regular, cyclical phenomena include seasons and atmospheric circulation. Climate change is often semi-regular.
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Lightning strikes during the eruption of the Galunggung volcano in 1982
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A tornado on May 3, 1999 in central Oklahoma
Atmospheric optical phenomena[edit]
- Aurora
- Crepuscular rays
- Green flash
- Haze
- Ice blink
- Light pillar
- Moonbow
- Moon dog
- Rainbow
- Subsun
- Sun dog
- Sunbow
- Water sky
Nuclear and Electrical[edit]
- Elementary particle interactions
- Supernova
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Liquid hydrogen bubble chamber photograph of an anti-proton colliding with a proton
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An effect of static electricity being observed
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Supernova
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Oceanographic[edit]
- Oceanographic phenomena include tsunamis, ocean currents and breaking waves.
See also[edit]
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References[edit]
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- ↑ Missy Allen; Michel Peissel (1993). Dangerous natural phenomena. Chelsea House. ISBN 079101794X. Search this book on
- ↑ William R. Corliss (1977). Handbook of unusual natural phenomena. Sourcebook Project. ISBN 0915554011. Search this book on
- ↑ Rafael Lozano; et al. (December 15, 2012). "Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010". Lancet. 380 (9859): 2095–128. doi:10.1016/S0140-6736(12)61728-0. PMID 23245604.
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