10 Lines Essay on Hot Air Balloon in English

by
  1. The hot air balloon is the oldest form of flying technology that can successfully carry people. 
  2. The earliest use of hot air to make objects fly was made in Ancient China.
  3. Paper lanterns were sent into the air for signaling. 
  4. The first hot air balloon to carry a person was made by the Montgolfier brothers.
  5. A hot-air balloon is a large balloon with a basket underneath in which people can travel.
  6. The balloon is filled with hot air in order to make it float in the air.
  7. The balloon floats upwards, as if it were in water. 
  8. They are able to fly to extremely high altitudes.
  9. Heating of the air inside the balloon makes air lighter than the cooler air on the outside. 
  10. So hot air being less dense makes balloon rise up in the sky.