the shaft 1 although any number of air entry ports 3 may be used so long as each port has a corresponding opposite port the current invention utilizes two of such ports while three fan blade units 2 are shown in fig1 only one fan blade unit 2 that being the fan blade unit located at the top of the hollow rotational shaft 1 the moving unit 15 is necessary for the operation of the present invention fig2 3 and 4 illustrate the moving unit 15 of the present invention although four fan blades 10 of particular geometry are shown in fig2 any number or shape of vanes may be use so long as the blades 10 remain balanced upon the rotational shaft 1 as shown in fig3 the upper 4 and bottom 5 surfaces of the fan blades 10 of the moving unit 15 are curved in such a manner as to allow a space 6 between the two to allow sunlight to shine through the upper 4 curved surface of the fan blades 10 of the moving unit 15 such surface is made from clear plastic although any surface which is transparent will suffice the bottom 5 curved surface of the fan blade 10 of the moving unit 15 is made from any opaque material of sufficient strength and rigidity as to support the fan blade 10.