i think a bike
Fault
It's a fault.
They use an interferometer. It can determine distance down to 1/2 wavelenght of light which is pretty small. The sent and returned light is compared. You said where, the answer is how.
They use an interferometer. It can determine distance down to 1/2 wavelenght of light which is pretty small. The sent and returned light is compared. You said where, the answer is how.
focus
fault
it comes from the crust
h
Tectonics.
Plate Techtonics.
Tectonics.
Plate tectonics.