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X-ray Computed Tomography of the ancient globe built by Egnazio Danti in 1567

University of Bologna Team Leader: Prof. Franco Casali; University of Bologna Research Group: Franco Casali, Morigi Maria Pia, Matteo Bettuzzi, R. Brancaccio; Partner/Collaborations: University of Bologna, Opificio delle Pietre Dure (Florence), Municipality of Florence.

  • The globe by Egnazio Danti (1567)
    The globe by Egnazio Danti (1567) The “Map Room” - Palazzo Vecchio (Florence), with the globe built by Egnazio Danti in 1567.
  • 3D tomographic reconstruction of the globe
    3D tomographic reconstruction of the globe The inner structure made of iron is clearly visible.
  • 3D tomographic reconstructions of the globe: virtual cut of the reconstructed volume
    3D tomographic reconstructions of the globe: virtual cut of the reconstructed volume The various elements of the inner structure are highlighted with false colours.
  • Detail of the north pole of the globe
    Detail of the north pole of the globe To lighten the structure, only half of the meridians converge at the north pole, while the others converge on the opposite pole.