Waves are everywhere. Water, for example, has waves. Sound and light have waves, too, although you can' t see them. But all waves have one common characteristic: they have energy.
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To understand light, you must know something about waves. |
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Waves are everywhere. Water, for example, has waves. Sound and light have waves, too, although you can' t see them. But all waves have one common characteristic: they have energy. |
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