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*[[Translucent]] [[Solid]]s, [[Liquid]]s and [[Gas]]es - [[Light]] is [[transmitted]] through [[translucent]] [[solid]]s but some of the [[light]] is [[Absorb (Physics)|absorbed]].
*[[Vacuum]] - [[Light]] is [[transmitted]] through a [[vacuum]] at 300,000,000m/s.
: [[Light]] can also be [[scatter]]ed when being [[transmitted]] through a [[medium]] which is when the [[light]] collides with a [[particle]] in that [[medium]] and changes direction. The [[sky]] is blue because the [[Nitrogen]] in the [[Earth's Atmosphere|atmosphere]] [[scatter]]s blue [[light]].