the Earth move under your feet!
a baseball bat on the floor with the handle up. Rest your
forehead on the top of the handle and walk around the bat
several times keeping your head in this position. Now stand
up and check out how you feel. Dizzy? Your sense of balance
is affected by fluid in the canals of your inner ear. When
you spin around with your head up, the fluid moves in one
direction but when your head is in another position, you create
all kinds of motion. With your head resting on the bat's handle
and then straightening up after you've moved in a circle everything
seems to be tilting and spinning.