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    Can One Make the atmospheric pressure to store energy

    If I Make two(many) tanks to fill water each one at different height levels. 1. Fill the lowest tank with water, open it to atmosphere. 2. close the second tank and create vaccum in it. make water flow from first tank to this till it gets filled. will this process allow me to store extra...
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    Blackholes light gravity

    Hi friends,. If black holes absorb light also, how can it exert any gravity outside a particular region? Or something can move faster than light?