As the disturbance propagates towards the edge of pond, however, the waves will smooth out and will appear to be nearly circular.
These disturbances propagate from their source as longitudinal pressure variations along the path of propagation.
Any disturbance created in a sufficiently small region of isotropic space (or in an isotropic medium) propagates from that region in all radial directions.
These special disturbances propagate through a material at a speed slower than c called the phase velocity.
Furthermore, in general relativity, disturbances in the gravitational field itself can propagate, at the speed of light, as "wrinkles" in the curvature of spacetime.
The disturbances caused by magnetostriction then propagate in the material as an ultrasound wave.
As you know, any electromagnetic disturbance (any change in anything) propagates with the velocity of light, something we have so far neglected to take into account.
Some critical volume of space-time had to be tweaked, and then the disturbance would propagate outward instantaneously, with enough amplitude to matter.
A tiny disturbance propagated through the grid of letters on the facing page.
Until the middle of the 19th century, most physicists believed in an "ethereal" medium in which the light disturbance propagated.