Although there are many ironic underwater technologies that got there by accident, such as planes and trains or by design, underwater escape training helicopters, there are also mail boxes, telephone systems, cars, motorcycles, kayaks (yes underwater kayaks) and air conditioning units that are there just to mess with us. Here are the most surreal we could find, vote for your faves.
There is something intensely creepy about submarines, not least because, as we found out from the two that had crashed into each other recently, they carry a thousand times the explosive power of the Hiroshima bomb in a claustrophobic metal sarcophagus powered by the same stuff as the bombs. Because of this, and because of their featureless exteriors which hide immense complexity they provide the same kind of kick that a complicated gadget in a smooth case provides. Just like gadgets its interesting to see how they work when they are being assembled or taken apart. Here are our favorite views from the science fiction like decommissioning of Soviet attack subs to rotting reactor cores to components being wheeled through English roads.
Hyperbaric chambers are used either as compression/decompression chambers for divers or for medical treatment, to speed up the healing of wounds, amongst other things. They come in a variety of interesting forms, from hyperbaric lifeboats to miniature portable fold-up or telescopic versions for helicopter rescue of divers.
Heavy lift ships can carry loads of tens of thousands of tons, including oil platforms, other ships and even dry docks. The are often semi-submersible so that they can sink below the water line to let their cargo slide off. The sheer size of their cargo often looks impossible, as these items suggest.
This is a bit of an obscure list, we admit, however there is something very impressive about the sheer size of ships which can only be appreciated when they are out of water. The ships themselves are often in unusual objects which are equally impressive, such as dry docks or floating docks or ship carriers.