The essay opens with a brief preface explaining why the idea is put in print. The first chapter describes the basic concept of reciprocating pistons moving by shifting a liquid medium between a U shape and a J shaped volume. The second chapter describes what the liquid medium could be for varying operating temperatures and power output. The third chapter discusses options for ratcheting the pistons and delivering torque to the power train. The last chapter muses about wonder engines running on water and magnetic flux from the cosmos, corporate conspiracies to suppress said wonder technology, secret technology of extraterrestrial visitors (gods) and the like.