P-waves travel fastest and arrive first.
S-waves (shear waves) travel perpendicular to the P-wave.
They've worked out the physics of waves bouncing off the crust (to reflect around to the other side of the world) and off the core.
The Jiggling Earth - Or What are All Those Squiggles?
Cheers,
Scott.
S-waves (shear waves) travel perpendicular to the P-wave.
They've worked out the physics of waves bouncing off the crust (to reflect around to the other side of the world) and off the core.
The Jiggling Earth - Or What are All Those Squiggles?
Cheers,
Scott.