In-jokes
In addition to the more serious material, the manual also contains a number of inside jokes. These include:
- A readable version of the medical display with the words "Medical Insurance Coverage Available" visible
- A cross-section diagram of the ship with the silhouettes of a rubber ducky, sports car, DC-3 airplane, Nomad from ST:TOS, a rat, and a hamster wheel visible
- A statement that the stellar navigation department of the Enterprise-D is staffed by an assortment of cetaceans (later backed up by published blueprints of the Enterprise drawn by Sternbach)
- A statement that the primary component of the Holodeck emitters is "Keiyurium", after Kei and Yuri, the "lovely angels" from "Dirty Pair", a Japanese anime and manga franchise
Read more about this topic: Star Trek: The Next Generation Technical Manual