Vertigo is a
sensation of spatial disorientation when the surroundings appear to whirl and
there is a sense of loss of balance. It often happens to people on tall
buildings or ladders but the victim is stationary and the world appears to spin
around them.
Coriolis effect occurs when the balance mechanism in the ears, the vestibular
apparatus, is subjected to two sources of motion such as moving your head while
the aircraft is in a turn, and the resultant sensed movement doesn't agree with
visual cues.