This category collects articles about inventions and technical developments connected to Nizhny Novgorod and Nizhny Novgorod Oblast. The region has historically been a center of engineering thought: it was here that hydrofoil vessels were designed and built — the Raketa (hydrofoil))» and the Meteor (hydrofoil))», as well as the military ground-effect vehicle «Lun», developed at the Alekseev Central Hydrofoil Design Bureau in Nizhny Novgorod. Alongside realized projects, the category also presents conceptual and experimental ideas by Nizhny Novgorod authors, including the Space Trebuchet.