大自然的奇妙现象:
1、北极光
北极光发生于太阳释放高能带电粒子,这些带电粒子以每秒300-1200公里的速度从太空释放出来,这些带电粒子形成的云状结构叫做等离子区。从太阳释放出来的等离子流叫做太阳风。当太阳风与地球磁场边缘发生接触,一些带电粒子被地球磁场所捕获,它们沿着磁力线进入地球电离层,电离层地球表面向空中延伸60-600公里的大气层部分。当带电粒子与电离层中的气体碰撞就开始发亮,产生壮丽绚丽的景色。
2、赤潮
赤潮是河口、海洋或淡水水藻在水域中快速堆积,从而覆盖整个海域或海滩,使海水变成血红色。这种现象是由于密度较高的浮游植物在水表面堆积形成密集、可见的团状结构,虽然部分浮游植物并无害,但少部分浮游植物有剧毒,可导致鱼类、鸟类和海洋哺乳动物死亡。在一些情况下,甚至人类也会在赤潮下受到伤害。
3、融凝冰柱
融凝冰柱看上去非常像冰矛,主要存在于高山冰川,它在尺寸上具有多样性,从几厘米高至5米高。最初,太阳光线在积雪或高山冰川表面上照射融化形成不规律的微凹,一旦
像这样的微凹形成,太阳光将在这个微凹处发生光线反射,增加了局部物质升华。随着微凹的逐步加深,深深的一个凹槽便形成,最终形成像耸立的冰矛结构。
4、会移动的石头
近十年来,美国加利福尼亚州死亡谷泥浆戈壁上会移动的石头成为颇具科学争议的一个焦点,对于这一怪异的自然现象,许多科学家均无法给予合理的解释。甚至重达数百磅的石头也会自然移动数百米之外,一些科学家猜测该现象可能是由于强劲的风和表面冰层的结合作用才形成这一运动。然而,这种解释理论不能解释不同质量的岩石能够
以不同的速度并排移动,或以不同的方向移动。此外,从物理学计算也不支持以上理论,当地至少需要数百英里每小时的风速才能移动某些石头,但最终这样的风速也无法移动数百磅的石头至数百米之遥。
5、超级气流
超级气流柱是在强烈暴风雨(比如中气旋:直径16公里以下的旋风)中持续出现纵深旋转上升气流,这一自然现象看上去非常可怕。该现象可持续数个小时,有时可能会分割成两半,位于暴风的两侧。超级气流柱席卷某一地区通常会带来冰雹、或暴风雨,有时还会产生龙卷风。有时超级气流柱会降落一些巨大的冰雹,该现象可能出现于地球的任何地区,但在美国大平原出现的概率较高。
The wonderful phenomenon of nature:
1, aurora borealis
Aurora borealis happening releases high-energy and electrified particle at the sun, these electrified particle with every second the speed of 300-1200 kilometer is released from aerospace, the cloud shape structure that these electrified particle form calls plasma the area. The plasma jet that releases from the sun calls the sun wind. Produce a contact when sun wind and brim of earthly magnetic field, a few electrified particle are captured by place of earthly magnetic field, they enter earthly ionosphere along lines of force, ionosphere earth watch faces the aerosphere share of outspread 60-600 kilometer in sky. When the gas in electrified particle and ionosphere collision begins to shine, produce gallant and flowery picture.
2, bare is wet
Bare tide is bayou, ocean or fresh water algae fast in water area accumulation, enclothe whole sea area or beach thereby, make seawater becomes sanguine. This kind of phytolankton that because density is higher,seems now forms concentrated, visible conglomerate form structure in accumulation of water meter face, although partial phytolankton is harmless, but little part phytolankton has virulent, can bring about fish, avian die with marine mammal. Below a few circumstances, even the mankind also can be in next bare is wet getting that harm.
3, be in harmony coagulates icicle
Be in harmony coagulates icicle looks special lance resembling ice, glacier of high mountain of main consist in, it has diversity on dimension, come high from a few centimeters 5 meters tall. Original, sun's rays line is in firn or high mountain glacier apparently illuminate melts form not of the rule small sunken, once
Picture such small sunken form, sun's rays will produce the light to reflex in this small sunken part, raised local material raising of things to a higher level. As small sunken deepen stage by stage, a deep groove is formed, form the structure glacial lance that resembles towering aloft finally.
4, can mobile stone
Come nearly 10 years, the can mobile stone on desert of slop of cereal of death of American California city makes a central point that provides scientific controversy quite, to this one unusual natural appearance, a lot of scientists all cannot offer logical explanation. The stone that hefts hundreds pound even also can move naturally hundreds meters besides, the combinative action that a few scientists guess to because driving wind and surface put a layer on the ice,this phenomenon may be just forms this one campaign. However, the rock that this kind of explanation cannot explain different quality theoretically can
Move side by side with different speed, or move with different way. In addition, from physics computation also does not support above theory, place needs hundreds miles of horary wind speed talent at least mobile and certain stone, but final such wind speed also cannot move the Yao that the stone of hundreds pound reachs hundreds meters.
5, super air current
Is column of super air current in violent storm (for instance in cyclone: ? The tornado under this?6 kilometer) in appear continuously depth rotates ascendant air current, this one natural phenomenon looks special dreariness. This phenomenon can count a hour continuously, may break up sometimes two half, be located in the two side of windstorm. Column of super air current sweeps across some area to be able to bring hail normally, or rainstorm, still can generate tornado sometimes. Sometimes column of super air current can descend a few tremendous hail, this phenomenon may appear at any areas of the earth, but the probability that in the United States big Campagna appears is higher.