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Afamia 8412.jpg

Afamia 8412.jpg

Apamea, Syria view map

These are pilae tiles, thin round or square tiles, that were used in Roman times as an element of the underfloor heating system, common in Roman bathhouses, called the hypocaust. The concept of the pilae stacks is that the floor is constructed at an elevated position, allowing air to freely circulate underneath and up, through the hollow bricks, into the structure walls.

Source: Wikipedia

Nikon D3
1/320s f/8.0 at 28.0mm iso200 full exif

other sizes: small medium large original
ibrahim Ali 28-Nov-2013 09:46
what was this used for ?
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