Today we saw a hot air balloon that was made by remax realty.One fact is that the first aircraft was a hot air balloon.The second fact is that the first hot air balloon was made in the mid seven teen hundreds.My third fact is that a hot air balloon has to have hot air to rise.My fourh fact is that it takes five thousand six hundred forty five basketballs to fill up the inside of the balloon.My last fact is that molecules rise to the top of the balloon to make it rise