Hot Air Balloons Joey Hendrickson and Georgette Green

The Inventor 1766 Henry Cavendish isolated hydrogen –(the lightest gas) Proposed it could lift objects Never pursued idea

First Uses 1782 Joseph Michel Montgolfier –Filled silk bag with hot air –Bag floated to the ceiling 1783 Montgolfier and brother Jacques Etienne –Larger model –Sent farm animals up in the air in a basket

First Uses (continued) 1783 Etienne and Montgolfier –Launched 70 ft. tall balloon –Carrying two people went 3000 ft. in the air –Were airborn for 25 minutes

Innovations of the Hot Air Balloon The parachute in hot air balloon was added in 1785 Sandbags were added later to bring the hot air balloon to the ground (to set up weight distribution differently?)

Classification of Hot Air Balloon Invention Transportation –Used originally for traveling short distances –Now used more for leisure activity

Effect on Society First successful type of transportation by air for humans Early models and experiments were very prone to crashes

Creating the Hot Air Balloon The Science… –Discovery of the difference between the “weight” of hydrogen and the “weight” of oxygen (“lighter than air” properties) The Technology… –The desire to create a form of transportation that uses the “lighter than air” principal that can carry humans long distances

Creating the Hot Air Balloon The Engineering… –Design and create a mode of transportation that holds an amount of a gas that is “lighter” than air and uses that principle to float and transport people –What shape should be utilized? The Math… –How large of a balloon is necessary? –How many humans can be carried?

Purpose of Hot Air Balloon Give humans the power of flight First success in air travel

Hot Air Balloon Quote “The best way of travel, however, if you aren't in any hurry at all, if you don't care where you are going, if you don't like to use your legs, if you don't want to be annoyed at all by any choice of directions, is in a balloon. In a balloon, you can decide only when to start, and usually when to stop. The rest is left entirely to nature.” — William Pene du Bois, 'The Twenty-one Balloons.'

Bibliography – CORRECT "Hot Air Balloon History - Invention of the Hot Air Balloon." The Great Idea Finder - Celebrating the Spirit of Innovation. Mar Web. 24 Sept "The History of Hot Air Balloons." Hot Air Ballooning Pictures, History and Information from EBalloon.org. Web. 24 Sept "Great Aviation Quotes: Balloons." Dave English Homepage Web. 24 Sept

Bibliography – Missing hyperLINKS (URLs) "Hot Air Balloon History - Invention of the Hot Air Balloon." The Great Idea Finder - Celebrating the Spirit of Innovation. Mar Web. 24 Sept "The History of Hot Air Balloons." Hot Air Ballooning Pictures, History and Information from EBalloon.org. Web. 24 Sept "Great Aviation Quotes: Balloons." Dave English Homepage Web. 24 Sept

Bibliography INCORRECT lonely LINKS ?! mhttp:// m

Bibliography – What we WANT "Hot Air Balloon History - Invention of the Hot Air Balloon." The Great Idea Finder - Celebrating the Spirit of Innovation. Mar Web. 24 Sept "The History of Hot Air Balloons." Hot Air Ballooning Pictures, History and Information from EBalloon.org. Web. 24 Sept ballooning.html "Great Aviation Quotes: Balloons." Dave English Homepage Web. 24 Sept