esti f (plural estis) 1  Alternative form of. â 2 estiâ in le TrÃ©sor de la langue franÃ§aise informatisÃ© (The Digitized Treasury of the French Language).
Frame dragging is a theory which says that space is elastic, and particles in it will exchange energy with it. In the scientific world, elastic means that when you apply a certain amount of force to an object (which will cause it to bend) and then remove the force, the object will return to its original shape and energy state.
A drag link converts rotary motion from a crank arm, to a second bellcrank, usually in an automotive steering system. The term is commonly used in automotive technology for the link in steering linkage that converts rotation of a pitman arm to a steering arm and eventually to tie rod links which pivot the wheels to be steered.