On Nov 21, 1783, in Paris, France, the first untethered manned flight was made by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes in a hot air balloon created on Dec 14, 1782 by the Montgolfier brothers.
King Louis XVI had originally decreed that condemned criminals would be the first pilots, but de Rozier, along with Marquis François d'Arlandes, successfully petitioned for the honor.
The first military use of a hot air balloon happened during the battle of Fleurus where the French used the balloon l'Entreprenant as an observation post.
- Wikipedia
Science Fair Project Information
Title: Which Material Is Best For Hot Air Balloons: Nylon Or Polyester?
Subject: Aviation
Grade level: Elementary School Grades 4-6
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Affiliation: Selah Junior High School
Year: 2000
Description: A countersink was dropped on the stretched tested materials, nylon or polyester, and the number of impacts it took to tear the fabric were counted. Then the samples of the same materials were heated in an oven and the tests were run again.
Link: http://www.selah.k12.wa.us/SOAR/SciProj2000/HeatherK.html
King Louis XVI had originally decreed that condemned criminals would be the first pilots, but de Rozier, along with Marquis François d'Arlandes, successfully petitioned for the honor.
The first military use of a hot air balloon happened during the battle of Fleurus where the French used the balloon l'Entreprenant as an observation post.
- Wikipedia
Science Fair Project Information
Title: Which Material Is Best For Hot Air Balloons: Nylon Or Polyester?
Subject: Aviation
Grade level: Elementary School Grades 4-6
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Affiliation: Selah Junior High School
Year: 2000
Description: A countersink was dropped on the stretched tested materials, nylon or polyester, and the number of impacts it took to tear the fabric were counted. Then the samples of the same materials were heated in an oven and the tests were run again.
Link: http://www.selah.k12.wa.us/SOAR/SciProj2000/HeatherK.html
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