CZ:Featured article/Current: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Chunbum Park
imported>John Stephenson
(template)
 
(33 intermediate revisions by 4 users not shown)
Line 1: Line 1:
== '''[[Acid rain]]''' ==
{{:{{FeaturedArticleTitle}}}}
----
<small>
'''Acid rain''' is a popular term for the atmospheric deposition of acidified [[rain]], [[snow]], sleet, hail and [[particulates]], as well as acidified [[fog]] and [[cloud]] [[water]]. The increased [[pH|acidity]] of these depositions, primarily from [[Sulfuric acid|sulfuric]] and [[nitric acid]]s, is generated as a by-product of the [[combustion]] of fuels,<ref>'''Note:''' Sulfuric acid is formed from the sulfur dioxide resulting from combustion of sulfur-containing fuels. Nitric acid is formed from the [[nitrogen oxides]] resulting from the high temperature partial conversion of the [[nitrogen]] contained in the combustion air.</ref> especially in [[fossil fuel]] [[power plant]]s. The heating of homes, electricity production, and driving vehicles all rely primarily on fossil fuel [[Energy (science)|energy]]. When fossil fuels are burned, [[acid]]-forming [[nitrogen oxides]] and [[sulfur oxides]] are released to the [[atmosphere]]. These [[chemical compound]]s are transformed in the atmosphere, often traveling thousands of [[kilometer]]s from their original source, and then fall out on land and water surfaces as acid rain. As a result, air [[pollutant]]s from power plants in the states of  [[New Jersey]] or [[Michigan]] can impact pristine forests or lakes in undeveloped parts of the states of [[New Hampshire]] or [[Maine]].<ref name=eoearth>The primary source for this article was [http://www.eoearth.org/article/Acid_rain?topic=49506 Acid Rain] August 7, 2010 (last revised  October 19, 2010), Gene Likens (Lead author), Wayne Davis, Lori Zaikowski and Stephen C. Nodvin. (Published on the website of the [[Encyclopedia of Earth]])</ref>
==Footnotes==
 
Acid rain in [[North America]] was discovered in 1963 in rain at  the [[Hubbard Brook Experimental Forest]] (HBEF)<ref>'''Note:''' Site of the Hubbard Brook Ecosystem Study in the [[White Mountains]] of [[New Hampshire]]</ref> that was some 100 times more acidic than unpolluted rain. Innovations for reducing fossil fuel combustion [[Air pollution emissions|emissions]], such as scrubbers upstream of the tall [[flue gas stack]]s on power plants and other industrial facilities, [[catalytic converter]]s on automobiles, and use of low-[[sulfur]] [[coal]], have been employed to reduce emissions of [[sulfur dioxide]] (SO<sub>2</sub>) and nitrogen oxides (NOx).
 
''Note:'' While the examples in this article describe the North American situation, the nature and effects of acid rain are similar all over the world.
 
 
''[[Acid rain|.... (read more)]]''
 
{| class="wikitable collapsible collapsed" style="width: 90%; float: center; margin: 0.5em 1em 0.8em 0px;"
|-
! style="text-align: center;" | &nbsp;[[Acid rain#References|notes]]
|-
|
{{reflist|2}}
{{reflist|2}}
|}
</small>

Latest revision as of 10:19, 11 September 2020

Napoleon (Napoleon Bonaparte or, after 1804, Napoleon I, Emperor of the French) was a world historic figure and dictator of France from 1799 to 1814. He was the greatest general of his age--perhaps any age, with a sure command of battlefield tactics and campaign strategies, As a civil leader he played a major role in the French Revolution, then ended it when he became dictator in 1799 and Emperor of France in 1804 He modernized the French military, fiscal, political legal and religious systems. He fought an unending series of wars against Britain with a complex, ever-changing coalition of European nations on both sides. Refusing to compromise after his immense defeat in Russia in 1812, he was overwhelmed by a coalition of enemies and abdicated in 1814. In 1815 he returned from exile, took control of France, built a new army, and in 100 days almost succeeded--but was defeated at Waterloo and exiled to a remote island. His image and memory are central to French national identity, but he is despised by the British and Russians and is a controversial figure in Germany and elsewhere in Europe.

The Trail of Napoleon - J.F. Horrabin - Map.jpg

Rise to Power

Once the Revolution had begun, so many of the aristocratic officers turned against the Revolutionary government, or were exiled or executed, that a vacuum of senior leadership resulted. Promotions came very quickly now, and loyalty to the Revolution was as important as technical skill; Napoleon had both. His demerits were overlooked as he was twice reinstated, promoted, and allowed to collect his back pay. Paris knew him as an intellectual soldier deeply involved in politics. His first test of military genius came at Toulon in 1793, where the British had seized this key port. Napoleon, an acting Lieutenant-Colonel, used his artillery to force the British to abandon the city. He was immediately promoted by the Jacobin radicals under Robespierre to brigadier-general, joining the ranks of several brilliant young generals. He played a major role in defending Paris itself from counter-revolutionaries, and became the operational planner for the Army of Italy and planned two successful attacks in April 1794. He married Josephine (Rose de Beauharnais) in 1796, after falling violently in love with the older aristocratic widow.[1]

Footnotes

  1. Englund pp 63-73, 91-2, 97-8