Question: The Cygnet was a powered version of the  tetrahedral kite designed by a Scottish-born scientist, inventor, engineer, and innovator who is credited with founding what in 1885?
Sentence (from "Arc kite"): These kites also fall into a category of foils called "closed-cell inflatables", meaning that the ram-air inlets on the leading edge of the kite are normally closed by flaps that act as one-way valves to maintain internal air pressure.
Relevant evidence: No