secondary rainbow

简明释义

副虹

英英释义

例句

1.The secondary rainbow appeared just after the first one faded away.

在第一个彩虹消失后，次级彩虹随之出现。

2.After the rain, we saw a beautiful secondary rainbow in the sky.

雨后，我们在天空中看到了一个美丽的次级彩虹。

3.When sunlight refracts through water droplets, it can create a secondary rainbow.

当阳光通过水滴折射时，可以形成一个次级彩虹。

4.We learned in science class that a secondary rainbow has its colors reversed.

我们在科学课上了解到，次级彩虹的颜色是反向的。

5.The secondary rainbow is always fainter than the primary one.

与主彩虹相比，次级彩虹总是显得更暗淡。

作文

Rainbows have always fascinated people with their vibrant colors and the beauty they bring to the sky. One of the most intriguing aspects of rainbows is the phenomenon of the secondary rainbow. Unlike the primary rainbow, which is the first arc that appears and displays the spectrum of colors, the secondary rainbow is a fainter arc that appears outside the primary one. It is formed by the reflection and refraction of sunlight within raindrops, but it undergoes an additional reflection inside the droplet, which causes the colors to be reversed. This unique characteristic makes the secondary rainbow an extraordinary sight for those lucky enough to witness it.The formation of a secondary rainbow begins when sunlight enters a raindrop. As the light passes through the droplet, it bends (or refracts) at the surface, separating into its component colors. The light reflects off the inside surface of the droplet and exits back out, creating the primary rainbow. However, some light rays undergo a second reflection before exiting the droplet, leading to the formation of the secondary rainbow. This extra reflection causes the colors to appear in reverse order, with red on the inner edge and violet on the outer edge.Observing a secondary rainbow can be a rare experience, as the conditions must be just right. Typically, a secondary rainbow is seen when the sun is low in the sky, often during or after a rain shower. To spot a secondary rainbow, one must look toward the area opposite the sun, where the light refracts through the raindrops in the atmosphere. The result is a beautiful display of two concentric arcs, with the secondary rainbow being less vivid than the primary one due to the additional reflection, which scatters the light more.The secondary rainbow has captured the imagination of many cultures throughout history. In some traditions, it is seen as a symbol of hope and promise, representing the idea that beauty can emerge even after a storm. The duality of the primary and secondary rainbow also holds significance, suggesting a balance between light and dark, joy and sorrow. This duality can be reflected in our own lives, reminding us that challenges can lead to moments of beauty and growth.In conclusion, the secondary rainbow is not merely a scientific phenomenon; it is also a source of inspiration and wonder. Its formation involves intricate processes of light interaction, resulting in a breathtaking display that invites us to pause and reflect on the beauty of nature. Whether we are admiring a single rainbow or a pair of them, the experience reminds us of the magic present in our world, urging us to appreciate the fleeting moments of beauty that life offers. Next time you see a rainbow, take a moment to look for the secondary rainbow and marvel at the wonders of nature.

彩虹一直以来都以其鲜艳的色彩和带给天空的美丽而吸引着人们。彩虹中最引人入胜的一个方面是“次级彩虹”现象。与出现的第一道弧线并显示色谱的主要彩虹不同，“次级彩虹”是出现在主要彩虹外侧的一道较暗的弧线。它是通过阳光在雨滴内的反射和折射形成的，但它在水滴内部经历了额外的反射，这导致颜色被反转。这一独特的特性使得“次级彩虹”成为那些幸运的人能够见证的非凡景象。“次级彩虹”的形成始于阳光进入雨滴。当光线穿过水滴时，它在表面处弯曲（或折射），分离成其组成颜色。光线在水滴的内部表面反射并再次出口，形成主要彩虹。然而，一些光线在退出水滴之前经历第二次反射，从而导致“次级彩虹”的形成。这额外的反射使得颜色呈现出反向顺序，红色位于内侧，紫色位于外侧。观察“次级彩虹”可能是一种罕见的体验，因为条件必须恰到好处。通常，“次级彩虹”是在太阳低悬于天空时看到的，往往是在或之后的雨后。要发现“次级彩虹”，人们必须朝向太阳的相反方向看，那里是光线通过大气中的雨滴折射的地方。结果是两条同心弧线的美丽展示，其中“次级彩虹”由于额外的反射而不如主要彩虹明亮，因为这会使光线散射得更多。“次级彩虹”在历史上吸引了许多文化的想象。在一些传统中，它被视为希望和承诺的象征，代表着即使在暴风雨之后也能出现美丽的理念。主要彩虹和“次级彩虹”的二元性也具有重要意义，暗示着光明与黑暗、快乐与悲伤之间的平衡。这种二元性可以反映在我们自己的生活中，提醒我们挑战可以带来美丽和成长的时刻。总之，“次级彩虹”不仅仅是一个科学现象；它也是灵感和奇迹的源泉。它的形成涉及光相互作用的复杂过程，结果是一个令人惊叹的展示，邀请我们停下来反思自然的美丽。无论我们是在欣赏单一的彩虹还是一对彩虹，这种体验都提醒我们世界上存在的魔力，促使我们珍惜生活所提供的短暂美好时刻。下次你看到彩虹时，花点时间寻找“次级彩虹”，并惊叹于自然的奇观。