Fun With Water Lens

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  • Water

    CylindricalGlass

    TwoArrowsonaCard

    Placethearrowcard

    nearthewall.

    Placeaglassinfrontofthecard.

    Fillwaterintheglass

    tocoverthelowerarrow.

    Magically,thelowerarrowwillreversedirectionandappearlarger.

    FunwithWaterLens

    1

    2

    3

    4

    Onpouringwater

    intheglass,it

    actslikeaconvex

    lensandinverts

    thedirectionof

    thearrow.

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