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.
Frame Dragging Effects. In frame dragging, particles spin, and this spin has energy in it. (It is important to note that this is not quantum physics spin, but an actual angular momentum spin; the particles are actually spinning). Since spacetime is elastic in this theory, it can absorb the energy (spin) of the particle.