The Physalia is a whale-shaped design from Vincent Callebaut Architects, who envision it to navigate and clean European rivers, making the water potable. This floating behemoth would be 80 meters in length, 14.9m wide and 11.4m high, accounting for a surface area of 2000 square meters.
Physalia gets its name from the “Physalia Physilis,” a jellyfish whose name translates into “water bubble.” The design will supposedly generate more energy that it consumes, and all in a very environment friendly fashion. Roof of the Physalia would be a double pneumatic membrane covered in solar cells, while hydro turbines under the hull will create energy from the flowing river waters.
The strucuture would be a giant floating garden, divided into four sections and named after natural elements, that is air, fire, water and earth. It is coated in a TiO2 layer of anatase shape, which reacts with UV rays to make the water cleaner. If built, the floating bubble would travel the waters of Seine, Thames, Volga, Danube and Escaut rivers.