Very interesting—I learned that the hot air balloon was invented in 1783 in Paris, France. The first passengers were a duck, a sheep, and a rooster. It was successful and proved that the balloon could carry weight and that mammals could breath at altitude.
Here is a balloon as it would look before it is inflated. The basket is on its side till the air is in the balloon and then as it rises it rights the basket.
I learned a lot but not sure if I really want to go up in one. By the look on Harry’s face, and knowing that he doesn't like heights, I don’t think he will go up either.