Windows Made of Concrete

The future could be here sooner than we think:

Architect Aron Losonczi has developed a new type of concrete that transmits light by adding “optical fibers” into the mix. The fibers are used to shift light at each end, producing a "see-through" effect. "Called LiTraCon, the blocks are a combination of “optical fibers” and concrete, mixed so that the fibers create a fine glass aggregate within the concrete."

Thousands of optical glass fibres form a matrix and run parallel to each other between the two main surfaces of each block. The proportion of the fibres is very small (4%) compared to the total volume of the blocks. Moreover, these fibres mingle in the concrete because of their insignificant size, and they become a structural component as a kind of modest aggregate. Therefore, the surface of the blocks remains homogeneous concrete. In theory, a wall structure built from light-transmitting concrete can be several meters thick, because the fibres work without almost any loss in light up until 20 meters. Load-bearing structures can be also built of these blocks, since glass fibres do not have a negative effect on the well-known high compressive strength value of concrete. The blocks can be produced in various sizes and with embedded heat-isolation. Litracon™ was invented by Hungarian architect Áron LOSONCZI in 2001. Litracon™ is protected by Swedish patent and other patents are also pending in other jurist regions.

Other technology of interest: is the camouflage coat...I couldn't resist adding it....