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    https://www.youtube.com/watch?v=bkNMM8uiMww

    An introduction to Filippo Brunelleschi's experiment regarding linear perspective, c. 1420, in front of the Baptistry in Florence . Created by Beth Harris an...

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    https://www.youtube.com/watch?v=e8A08CBrHbg

    Ringsend was a good location for making glass. Glass manufacturers needed a lot of sand, of which Ringsend had plenty. They also needed lots of coal to melt ...



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