Hydrosphere

A hydrosphere is a personal life support/transportation device created from water and controlled by the Terminarch's shipboard computer to provide support for waterbreathers when they are aboard the normally water-free environment of the submarine.
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== Description ==
The hydrosphere, being comprised of water, is fluid and dynamic, shaped to the needs of the occupant. The ship's computer appears to use a static field that takes advantage of water's naturally high surface tension to keep the water contained, and tractor beams to move it about the ship under the direction of the control rings. Two control rings, worn on the index and middle fingers of one hand, are used to form and direct the 'sphere. Snapping the fingers of the controlling hand causes the 'sphere to form or collapse as needed, and gently minimized swimming movements of the controlling hand direct the travel motion. The 'sphere is controlled either by the 'sphere's occupant or an outside tender, such as the captain of the ship. It should be noted this device is restricted to use within the confines of the submarine, as it would only be required by waterbreathers in the presence of an atmosphere.
(Note: the science of this section is not canon … yet.)
== History ==
Little is currently known about how the hydrosphere was invented, though it could be deduced that the Dohrnii either discovered or rediscovered the principles behind the technology driving the control interface and the beam projectors.
The hydrosphere was first used by Shin to protect and transport Pezci and Shin when he catches them breaking into his submarine when they sought shelter from the monster fish that was pursuing them.Airbreather The control rings can be seen on his hands throughout their time as his prisoners. It next appears when the two merpeople return to Shin's submarine, this time as passengers.The Submarine (Q&A!) He had thoughtlessly drained the ship of water before he was reminded that his passengers need water to survive.
== References ==