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in this fun experiment you van levitate a tt ball in air. for this you will require
a fat straw and a ping pong ball. first take the fat straw and punch a hole in it and then
tape the end and the bottom end. so there will be just one hole. blow through it, the
stream of air will come out and keep the ball hanging in the air. this stream of air comes
out and cups the ball and the ball keeps floating. its a great fun experiment. you can also do
this with the bent straw. keep constantly blowing and the ping pong ball will just levitate,
will hang in the air.