Can someone please explain to me why this is so groundbreaking? If I blow a smoke ring and there is no wind my smoke ring stays circular. If there is wind blowing from the side my smoke ring will become distorted. Likewise if there is a current in water then I expect that current to disturb the propagation of waves moving through the water, not so? The medium in which the wave is propagating is itself moving.
Surely this has not remained a mystery for 127 years.
Surely this has not remained a mystery for 127 years.