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Straight Lines May Seem Like A Perfectly Natural Structure, But They Don’t Actually Exist
Surely light travels in a straight line though, right? One of the benefits of a laser is that it will travel great distances in a very precise way. Straight and precise enough (with sufficient ...
BBC2y
Light Waves
nothing can travel faster than the speed of light. By comparison, sound travels just 340 m in one second, about the length of three and a half hockey pitches. Light travels in a straight line.