• Question: why do photos fade if they are on a window sills for a long time

    Asked by ledw to Christina, Jess on 28 Jun 2013.
    • Photo: Jess Bean

      Jess Bean answered on 28 Jun 2013:

      The images that we see on photos are made by coloured ink and dye molecules that make the picture. If photos are in the sun for a long time the energy in the light from the sun can break down the colour molecules that make the picture, causing it to fade!

    • Photo: Christina Pagel

      Christina Pagel answered on 28 Jun 2013:

      In fact, the process Jess talks about works on all sorts of things- like clothes and carpets and hair!! all of these fade (or get lighter) in prolonged sunlight…

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