富贵涨易v新时代:有关闪电的问题????

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/04 15:09:31
我曾经看到的闪电几乎都是白色的,但是我昨晚在雷雨中看到的闪电却是红色的!!!而且雷声异常地响?这是怎么回事呢?

闪电是自然界中存在的一种强大的放电现象。 闪电的放电作用通常会产生了闪电光或电光(light)。 空气中的电力经过放电作用急速地将空气加热、膨胀,因膨胀而被压缩成等离子(plasma),再而产生了闪电的特殊构件雷(冲击波的声音)。
球状闪电
球状闪电通常被形容做一个在空中漂浮的发光球体。它们移动速度不定,甚至可能出现静止的状态。有时候会发出噝噝的爆裂声。甚至有些球状闪电在穿过窗户后爆裂开来消失了。 有很多目击者都描述了球状闪电但是很奇怪,它们很少被气象学家记录到。

The engineer Nikola Tesla wrote, "I have succeeded in determining the mode of their formation and producing them artificially" (Electrical World and Engineer, 5 March 1904). There is some speculation that electrical breakdown and arcing of cotton and gutta-percha wire insulation used by Tesla may have been a contributing factor, since some theories of ball lightning require the involvement of carbonaceous materials. Some later experimenters have been able to briefly produce small luminous balls by igniting carbon-containing materials atop sparking Tesla Coils.

Several theories have been advanced to describe ball lightning, with none being universally accepted. Any complete theory of ball lightning must be able to describe the wide range of reported properties, such as those described in Singer's book "The Nature of Ball Lightning" and also more contemporary research. Japanese research shows that ball lightning has been seen several times without any connection to stormy weather or lightning.

许多不在这个球状闪电领域工作的科学家是不能体会到球状闪电的领域特性是多麼广泛的。典型的球状闪电直径通常被规范化为20-30 厘米, 但有报告球记载了球状闪电直径可达数米以上(Singer) 。一张最近的相片是由昆士兰(Queensland)机动队员Bret Porter所拍摄, 相片中显示了一个相信为球状闪电的一个火球,估计直径大约为100 米。相片是刊出在科学杂志 「Transactions of the Royal Society」. 标题为「一个有一条长而扭转绳索似的发光球状区域( a glowing globular zone (the breakdown zone?) with a long, twisting, rope-like projection (the funnel?) )」.

Fireballs have been seen in tornadoes, and they have also split apart into two or more separate balls and recombined. Fireballs have carved trenches in the peat swamps in Ireland. Vertically linked fireballs have been reported. One theory that may account for this wider spectrum of observational evidence is the idea of combustion inside the low-velocity region of axisymmetric (spherical) vortex breakdown of a natural vortex (e.g., the 'Hill's spherical vortex'). 高文(Coleman)是最早发表这个理论的科学家。在1993年,他在Royal Meteorological Society的出版刊物「Weather」中发表了这个理论。 球状闪电是很难被人看见的。 事实上,只有数次被拍摄为照片的记录。

圣艾尔摩之火是被Franklin 正式评定为自然界中的电力。这是与球状闪电完全不同的。
http://zh.wikipedia.org/wiki/%E9%97%AA%E7%94%B5

楼上的这位仁兄...搂主问得不是球状闪电~~~
球状闪电目前还没有确切定论~~只是一个火红的球体,滋滋的声音,而且就像沸腾的铁水一样冒着火花...
至于搂主的问题,我以前看过这种的报道...大意就是,大气层放电量,气温,还有大气中所含有的成分都可能改变闪电的颜色~~

http://upload.ourgame.com/bbs/upfile/2006/1/5/2006151708448.gif

摘抄也不加筛选 把英文都弄进来 真是一点技术含量都没有

蓝白光是肉眼看到的不同波长的光,当云层运动激烈时,产生的火光--也就是闪电能量很大,它电离空气会产生波长短,能量高的紫光,反之,就是红光.