For 10 points, name this fictitious force that causes winds to deflect to the north and south of the equator, which is responsible for the formation of cyclones.
The vertical component of the effect caused by this force is sometimes named for Eotvos. The ratio of inertial forces to the magnitude of this force is a dimensionless number named for Rossby. This force causes the apparent (*) deflection of objects moving in rotating reference frames. For 10 points, name this fictitious force that causes winds to deflect to the north and south of the equator, which is responsible for the formation of cyclones.
The vertical component of the effect caused by this force is sometimes named for Eotvos.
{Coriolis} force [or {Coriolis} Effect]