Most Powerful And Ingenious Machines

 That truck lifting system is all but useless except for maybe roadside checks of heavy vehicles by government vehicle inspectorates but even then, they need transporting.  That pond mixer is useful.  This makes it possible have equipment suck up the pond and spread it on the fields. Plus this injet oxygen in the pond helping the bacteria.  That truck lifting system is all but useless except for maybe roadside checks of heavy vehicles by government vehicle inspectorates but even then, they need transporting.