Sybian wired remote control. Flexible moulded attachments are supplied which fit over the vibrating ridge and shaft which mostly have integrated dildos on their top. In use, the rider locates the dildo into their body cavity for internal stimulation while pressing their external erogenous parts on the vibrating ridge. According to its inventor Dave Lampert, the Sybian was first conceived in the 1970s, and developed in 1983. A prototype was built in 1985 from sheet metal mounted on a wooden frame with a vibrator projecting through an opening inside the housing; a second prototype became the basis for current production models.
Is-a in languages that support inheritance as a subtyping mechanism. The following C++ code establishes an explicit inheritance relationship between classes B and A, where B is both a subclass and a subtype of A, and can be used as an A wherever a B is specified (via a reference, a pointer or the object itself). The following python code establishes an explicit inheritance relationship between classes B and A, where B is both a subclass and a subtype of A, and can be used as an A wherever a B is required. The following example, type(a) is a "regular" type,