| 翻訳と辞書 |
| La Mancha Negra ： ウィキペディア英語版 |
La Mancha Negra
La Mancha Negra (The Black Stain) is a mysterious black substance that has oozed from roads in Caracas, Venezuela which first appeared in 1986. Since the appearance of La Mancha Negra, it has caused multiple car accidents and claimed thousands of lives. Finding the cause of the substance has proven difficult and there are still no definitive explanations.
==History==
In 1986, La Mancha Negra first appeared as a smudge 50 yards long, it was noticed by workers as they patched the 30-year-old asphalt on a highway between Caracas and its airport.〔〔 Initially, concerns for the blob were low but soon it spread. 100 meters, a mile, soon 8 miles of highway were covered with an unknown material that contracted and expanded with the weather. It grew when conditions were hot and wet but shrunk when it was cold and dry.〔 It seemed to prefer tunnels and the uphill slopes outside the airport. Despite its gummy texture, the blob rendered the roadway extraordinarily unsafe, causing vehicles to crash into one another or run off the road. In 1991, a group of experts consulted President Carlos Andrés Pérez about the problem but could not pinpoint the cause of the substance.〔 1,800 deaths were then attributed to La Mancha Negra in the five years before 1992.〔
The Venezuelan government stepped in, stating that it devoted "millions of dollars" to investigating the problem, even consulting experts in the U.S., Canada, and Europe. In 1994, the Ministry of Transport and Communications attempted to wash away La Mancha Negra believing it was paste consisting of oil and dust and even suspended work when it rained believing it would wash away the substance. They tried spraying the stain away with pressurized water, but this did not work. They tried scrubbing it away with detergents to no avail. They even repeatedly scraped away the top layer of the roads, resurfacing it, only to watch La Mancha Negra reappear.〔 Finally, the government poured tons of pulverized limestone over the stain to 'dry it up'. This seemed to work for a while, but created a different problem; the roads then became so dusty that drivers and local residents complained that the air was unbreathable.
In January 1996, the lack of maintenance, low rainfall and the poor quality of vehicles in Caracas made the roads slick with the substance once more. La Mancha Negra was thought to have been dealt with in 1996 after special cleaning equipment was brought from Germany. However, La Mancha Negra reappeared in 2001 on Baralt, Nueva Granada, Fuerzas Armadas, Sucre and Urdaneta Avenues in Caracas.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「La Mancha Negra」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|