A brick
From the point of view of topology, this tile recalls a surface of genus 3, that can be thought as a doughnut with three holes, or as a sphere with three handles. It would be a surface of genus 5 if the two small holes in the centre pierce the tile (we can't say from the photo).
© matematita
The image belongs to the sections...:
Objects (Topology)
On the road (Anthology of images)
