After studying the floating vegetation islands of the Uru tribe , the Bottle Island in Mexico, natural ocurring floating vegetation patches, and the modular island, i would like to postulate the principle of a “buoyancy injector” for floating island building, and suggest the need to investigate a machine that produces bouyancy in large amount in small closed units from glass, plastic, or similar inert materials in form of little spheres that can be injected below a existing island to lift it higher out of the water.
Those of us who has seen the episode of “rescuing a boat by injecting ping-pong balls into it” from mythbusters have more or less the idea how this works.
You would start with a floating geo tissue on the surface – inject balls under it to lift it above the surface – throw steel mats on it – spray some shotcrete over it – now you can step on it – get some vegetation like mangroves – their roots go down to unite the balls and keep them united – when buildings on the island starts to sink down like venice – inject more buoyancy trough a well that you drive trough the ball vegetation matrix.
Anybody who has seen a glass bottle or light bulb factory knows the incredible speed and low cost how such injectable floating units can be produced – from abundant cheap raw materials like sand – waste plastic etc – a production of hundreds of tons of displacement per hour would be a small industrial facility. Keep it working 24 hours a day – a island would grow quite quickly and constantly.
This concept was first suggested 2002 on an internet forum by Wilfried Ellmer …