Project Abstract
    The 
	variation of the gravitational force and its influence on the rise and fall 
	of the Caspian sea level, the Bermuda Triangle , the earthquakes, and the 
	air-pockets.
	 The major 
	rise of water level in the coastal zone of the Caspian sea is accompanied by 
	a major fall of water level in the mid part of the Sea ( and vise versa )
	
	 The period 
	of rise and fall of the Caspian sea level is estimated to be 100 years.