• Question: how is gravity made?

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      Asked by 536merf39 to Angus, Catherine, Jenni, Melissa, Waqar on 15 Jun 2016.
      • Photo: Angus Cook

        Angus Cook answered on 15 Jun 2016:


        That’s an excellent question, and really, REALLY, when you get RIGHT down to it… we don’t know.

        We DO know that gravity (or a gravitational field, to get fancy about it) is created by all objects with mass. Even small things create a gravitational field.

        The reason we don’t really feel the gravity of most other objects is that the strength of gravity depends on two things:
        1) How big the object is (we feel more gravity from the Earth than we do a table).
        2) How close to the object we are (we feel the Earth’s gravity more than we do the gravity of the Sun or Moon).

        We also know a lot more about it, which is a bit complicated to get into here (it can effect time, and gravity can act like a wave travelling through space), but the bit we don’t know is how it fits in with things like light, magnets and the atomic and sub-atomic side of things.

      • Photo: Melissa Ladyman

        Melissa Ladyman answered on 20 Jun 2016:


        I can’t really add more to Angus’ answer. Gravity is a bit of a mystery!

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