^what keeps us from fall down to the middle of the earth? All
   the stuff thats in the way.

   Chair keeps your butt from hitting the floor. Floor keeps you
   from hitting the dirt. Dirt keeps you from hitting the water
   table, the rocks, the melted rocks (magma) and the very hot
   spinning melted iron magnet at the earth's core.

   Thank you chair - you saved my life yet again.^