• Question: can u reverse gravity

    Asked by da buxton watter TGS to Connor, Jillian, Lidunka, Sarah, Steven on 15 Jun 2015.
    • Photo: Steven Thomson

      Steven Thomson answered on 15 Jun 2015:

      As far as we’re aware, gravity can’t be reversed! It’s always an attractive force, pulling things together, unlike electromagnetism which can be attractive or repulsive. If you could reverse gravity, you’d have a great way to launch spaceships without big polluting rocket launches, but it doesn’t currently look like reversing gravity is possible.

    • Photo: Lidunka Vocadlo

      Lidunka Vocadlo answered on 15 Jun 2015:

      @da buxton watter TGS You can’t reverse gravity as such, but when things get too close together they collide and either break up or coalesce. And if you continue bringing stuff together, at an atomic scale they start to repel.

    • Photo: Jillian Scudder

      Jillian Scudder answered on 17 Jun 2015:

      The best we can do right now is work against gravity, either via rockets, or on smaller scales with magnets. Gravity doesn’t seem to have two modes, like electricity has a positive and a negative charge, or like magnets have two poles, so there’s no turning it around!

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