• Question: will your lasers eventually travel at the speed of light?

    Asked by Vicky to Ashley on 15 Nov 2015.
    • Photo: Ashley Hughes

      Ashley Hughes answered on 15 Nov 2015:

      Hey Vicky,

      My lasers (and all lasers) give out light. Light can only ever travel at the speed of light, it never changes!

      The thing that can change is the frequency of the waves (light is made up of waves, and the time from one peak in the wave to the next is what frequency is). This is what changes the light in terms of colour for instance, but they are all moving at the exact same speed!

      Ash

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