Umbrella descensoria

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

Homines umbrellis descensoriis utuntur.

Homo Volans. Adumbratio Fausti Verantii quae umbrellam descensoriam suae designationis pingit, opere Leonardi Vincii innitens (circa 1595).

Bibliographia

• 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.

Nexus externi

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.