[ETL]

Gravity is a force that curves space. That curved space is the field.

What then is "frame dragging"? Doesn't it involve a time delay of some sort?

[LeGrande]

What then is "frame dragging"? Doesn't it involve a time delay of some sort?

Frame dragging is taking the whole gravity field along and warping spacetime as the object goes through space. Think of a rolling bowling ball on a trampoline stretching the fabric as it rolls. Notice though that the curvature around the bowling ball always stays the same.