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Where does the sound of thunder come from?

The noise you hear is that of the lightning , breaking the sound barrier! As we all know, light  travels faster than sound, this is why you see the lightning first, then hear the thunder! As lightning...

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What makes the colors in the rainbow?

A rainbow is made up of seven colors: red, orange, yellow, green, blue, indigo, and violet.  These however are just the colors that we can see.  The spectrum of light includes a much broader range of...

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What is infrared light?

Infrared, visible, and ultraviolet light are all electromagnetic waves. However these waves differ in both their wavelengths (the distances between adjacent maximums in their electric fields) and in...

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Why do the earth’s oceans appear blue from the moon?

The earth’s oceans and sky both appear blue to everyone who observes them. They do this because water absorbs blue light less strongly than it absorbs other colors. When ocean water is exposed to...

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