Adding a new dimension to marine restoration: 3D printing coral reefs
The local fishermen looked on skeptically. From the deck of a small motorboat, scuba divers grabbed odd chunks of ceramic – which could be described as rocky brains stuck on stumpy stilts – and plunged into the aquamarine waters. The dive team assembled the pieces as a few triggerfish circled around to investigate the commotion. After just two air tanks (about an hour each), they had locked all of the items together into the final product: an artificial coral reef.