• Question: how do we absorb energy from the sun?

    Asked by haadia to Bernard on 11 Nov 2015.
    • Photo: Bernard Ennis

      Bernard Ennis answered on 11 Nov 2015:

      If you mean humans, then we don’t absorb energy as far as I know. Our skin produces vitamin D in reaction to sunlight which is a very useful vitamin for making us feel good and giving us healthy bones.

      As for solar cells, some materials generate electrical current when they are exposed to light which you can use to power electrical equipment (your fridge etc)

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