13 days living underwater in a ‘biosub’

Date: 1/6/2007

Breathing air provided by algae, watered by recycled urine, and pedalling a bike for electricity, an Australian aquanaut spent 13 days living underwater in a ‘biosub’. Lloyd Godson, a marine biologist, entered the two metre-high yellow ‘biosub’ capsule submerged in a former quarry on wetlands near the south eastern town of Albury on 5 April. His survival at a depth of five metres hinged on a coil of green algae which supplied air in return for Lloyd urinating on the plants each day. Divers provided meals through a manhole, while electricity came from the bike and some through a bank of onshore solar cells. The experiment was designed to see whether an underwater environment could be self–sustaining. visit


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