夏威夷
大岛上的霍瑙瑙国家历史公园,夏威夷 (© Westend61/Getty Images)
追逐彩虹(Chasing Rainbows )
每年4月3日,我们都会庆祝国庆节。当光线照射到水滴时,这些色彩奇观就会出现,产生自然的棱镜效果。当它们出现时,它们是太阳光线折射的产物,所以你总是会发现它们的方向与太阳在天空中的位置相反。
原文:
Every April 3rd, we celebrate National Day. When light strikes water droplets, these color wonders appear, creating a natural prism effect. When they appear, they are the product of refraction of the sun's rays, so you always find that their direction is opposite to the sun's position in the sky.
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