Diving Helmets, 12 Hyperbaric Chambers, 10 Dry Land Submarines, Unusual Rubber Duckies, 12 Dry Land Swimming Machines & A Undewater Locomotive

Some really cool interesting links from Oobject....

Diving Helmets


12 Hyperbaric Chambers


10 Dry Land Submarines


Unusual Rubber Duckies


12 Dry Land Swimming Machines


Underwater Locomotive


[via: http://www.oobject.com]