Hot-air Balloon
Joseph-Michel Montgolfier and Jacques-Etienne Montgolfier born in Annonay, France, invented the first practical hot-air balloon. They demons-trated it publically on 4 June, 1783, at Annonay marketplace. They prepared a large spherical bag and filled it with heated air by burning wool and straw under the basket hung underneath the bag. The bag rose about 3,000

Read and learn about the world’s greatest inventions that change the human life and societies. These fascinating stories will leave children’s awe-struck and make them think to do the impossible.













