Parachute Infantry by David Kenyon Webster

It is not known whether the Italian inventor was influenced by the earlier design, but he may have learned about the idea through the intensive oral communication among artist-engineers of the time.

A square wooden frame, which alters the shape of the parachute from conical to pyramidal, held open Leonardo's canopy. Here, the scale of the parachute is in a more favorable proportion to the weight of the jumper. Shortly after, a more sophisticated parachute was sketched by the polymath Leonardo da Vinci in his Codex Atlanticus (fol. Although the surface area of the parachute design appears to be too small to offer effective air resistance and the wooden base-frame is superfluous and potentially harmful, the basic concept of a working parachute is apparent. The design is a marked improvement over another folio (189v), which depicts a man trying to break the force of his fall using two long cloth streamers fastened to two bars, which he grips with his hands. As a safety measure, four straps ran from the ends of the rods to a waist belt. 200v), showing a free-hanging man clutching a crossbar frame attached to a conical canopy. The oldest parachute design appears in an anonymous manuscript from 1470s Renaissance Italy (British Library, Add MS 34113, fol. The earliest evidence for the true parachute dates back to the Renaissance period. Urn:oclc:869738851 Republisher_date 20140107063906 Republisher_operator Scandate 20140103085441 Scanner oldest known depiction of a parachute, by an anonymous author (Italy, 1470s) OL18166311W Page-progression lr Page_number_confidence 90.05 Pages 414 Pdf_module_version 0.0.20 Ppi 500 Related-external-id urn:isbn:0440240905 Access-restricted-item true Addeddate 07:35:20.653261 Bookplateleaf 0008 Boxid IA1111417 Camera Canon EOS 5D Mark II City New York Donorįriendsofthesanfranciscopubliclibrary External-identifier

Parachute Infantry by David Kenyon Webster