When you move through the sky, the main method of transport you think of is via airplane. Flying in an airplane is probably the most practical way. There are other methods that people use but more likely in a recreational way. One of these is riding in a hot air balloon. Not the most efficient use of travel, the hot air balloon is mainly used as a fun activity. But how does a hot air balloon work?

Want to learn more about hot air balloons?

http://science.howstuffworks.com/tran...
https://en.wikipedia.org/wiki/Hot_air...
http://www.eballoon.org/history/histo...

That took some thinking! If you have any questions you would like answered leave a comment below!



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