An Australian aquanaut has spent two weeks underwater using sustainable fuels including urine, algae and pedal power. 29 year old Lloyd Godson, a marine biologist, got funding for the project after winning a "Wildest Adventure" competition run by nature journal Australian Geographic. He entered the 2 metre-high yellow biosub capsule, submerged in a former quarry on wetlands near the southeastern Australian town of Albury, on April 5. His survival at a depth of 5 metres hinged on a coil of green algae which provided air in return for Godson urinating on the plants each day. © Reuters ...