In 1963-65, S.I. Fishgal, among novelties described later in his 600 patent applications and publications, pioneered in using hydro-impacts for numerous technological processes. Back then the only known usee were hydraulic rams.
The authorÕs other engineering books are "Rock Crushers InventionsÓ, ÒMilitary Cable Layers-Extractors Inventions" and ÒApplied Cavitation InventionsÓ. His historical novels are "Piddler on the Hoof", "Kosher Hooks" and "Mein Krampf".