The light that we see with our human eyes as a band of rainbow color falls in the range of what's called visible light.

我们用肉眼看到的彩虹色的光属于可见光。

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Visible light consists of different colors or wavelengths, which together make up what's called spectrum, a band of colors, like you see in a rainbow.

可见光由不同的颜色或波长组成，它们共同组成了所谓的光谱（一段颜色），就像你在彩虹中看到的那样。

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Observe the energy as it transforms into a rainbow of light energy, lifting from the earth and expanding out into the universe.

我们把这个能量看成是能量转换成彩虹光能，从地上举起，扩大到宇宙中。

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Researchers have trapped a rainbow - slowing light to a near-stop - in an array of 25, 000 "invisibility cloaks", each smaller than a hair's breadth.

BBC: 'Cloaking' idea traps a rainbow

The website explains how a rainbow is made from light and water - with help from the sun.

BBC: rainbow