Environment Manipulation Unit
From Star Trek: Theurgy Wiki
Utilizing the breakthrough notes of the brilliant engineer Lawrence "Larry" Marvick, the Environment Manipulation Unit (E.M.U.) was designed by Starfleet Corps of Engineers in an effort to integrate Medusans into Starfleet. The first step was the installation of a radiation shield in front of the upgraded Constitution-class transporters, thereby removing the need for Starfleet cress needing a protective visor when transporting Medusans.
Medusan Electromagnetic Container
The first containment unit made available to Medusans aboard Federation vessels was the original opaque carrier pod designed by Marvick before his tragic death. Its immediate flaws consisted of its lack of self-propulsion, requiring handlers to use an antigrav to move the Medusan about the ship. The pod lacked communicator technology allowing the Medusan within the ability to communicate without forming a telepathic mind link with a psionic translator. The lid was not securable and was prone to opening.
Environment Manipulation Unit (Mark I) (2270-2274)
The E.M.U. Mk I resembled the original habitat shell but was upright and streamlined. It came equipped with inbuilt antigravs and a set of robotic manipulator arms in recesses along its sides. The lid of the E.M.U. had a domelike shape that vaguely implied a head and was more secure against accidental opening.
Environment Manipulation Unit (Mark II) (2274-2379)
Environment Manipulation Unit (Mark III) (2379-present)
The Mark III E.M.U. was the first to incorporate holo emitters granting a humanoid appearance, however, the holographic interface had a noticeable flaw. The image interface possessed a slight disconnect in visually translating the medusan occupant's emotions. This gave the holographic avatar an unpredictable emotional response. More noticeable was the avatar's inability to blink, creating a visage of constant staring.
