Photo: ‘Expn235022’ by NOAA

DEEP SEA SPONGE

Reinforced fibre optics

The deep-sea sponge – Phylum Porifera is made from a natural glass which are bundles of threads embedded like reinforced concrete. Each square window measures about 2×2 millimeters. The glass-like fibers of a sponge transmit light better than any human-made fiber optics, yet they are made from natural materials and at ambient temperatures.

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