Umbrella descensoria

Umbrella descensoria,^[1] sive decidiculum,^[2] est instrumentum quod rei motum per atmosphaeram tardat, impedimento creato, vel in decidiculo aeris inferciendi sublevatione aerodynamica, effecta.

• Lucas, John. 1973. The big umbrella: the history of the parachute from Da Vinci to Apollo. Praefatio Douglas Bader. Londinii: Elm Tree Books. ISBN 0241022940.
• Mirsky, Steve. 2019. "Volunteers Jumped with or without a Parachute to Gauge Its Effectiveness." Scientific American, 1 Martii 2019.
• Moolman, Valerie. 1980. The Road to Kitty Hawk. Novi Eboraci: Time-Life Books. ISBN 9780809432608.
• Peck, James L. H. 1945. "How Armies Hit The Silk." Popular Science, Iunius. Google Books.
• Pell, Smith, et C. S. Gordon. 2003. "Parachute Use to Prevent Death and Major Trauma Related to Gravitational Challenge: Systematic Review of Randomised Controlled Trials." British Medical Journal 327, no. 7429 (20 Decembris)): 1459–61. ISSN 0959-8138. PMID 14684649.
• Soden, Garrett. 2005. Defying Gravity: Land Divers, Roller Coasters, Gravity Bums, and the Human Obsession with Falling.Novi Eboraci: W. W. Norton & Company. ISBN 978-0-393-32656-7. Google Books.
• van den Broek, Marc. 2019. Leonardo da Vinci Spirits of Invention: A Search for Traces. Hamburgi: A.TE.M. ISBN 978-3-00-063700-1.
• White, Lynn. 1968. "The Invention of the Parachute." Technology and Culture 9, no. 3 (Iulius): 462–67. doi:10.2307/3101655. JSTOR 3101655.

Vicimedia Communia plura habent quae ad umbrellas descensorias spectant.

Vide umbrellam descensoriam in Victionario.

• De historia umbrellaarum descensoriarum.
• De historia umbrellarum descensoriarum.
• Situs proprius, The Canadian Sport Parachuting Association.
• Situs proprius. The United States Parachute Association.
• "A Safety Parachuite for Airmen." Scientific American, 7 Iunii 1913. De primo descensu ex aeroplano volante.
• "Program Executive Office Soldier."
• De educatione skydiving.
• Liber Para2000.
• "The 2nd FAI World Championships in Canopy Piloting – 2008 at Pretoria Skydiving Club South Africa."
• Parachute History Collection apud Linda Hall Library.
• "Numéro La Revue aérienne / directeur Emile Mousset." De prima muliere quae umbrella descensoria usa est.
• Everard Calthrop Parachutist: Drop From Tower Bridge Part 1 (1918). Pellicula de descensu ex Tower Bridge per bellum mundanum primum.