https://peertube.dngr.us/videos/watch/da650167-a3ff-4880-bdb4-ca71f1e4de17 Join this channel to get access to perks: https://www.youtube.com/channel/UCddem5RlB3bQe99wyY49g0g/join Want to learn more about Periscope Film and get access to exclusive swag? Join us on Patreon. Visit https://www.patreon.com/PeriscopeFilm Visit our website www.PeriscopeFilm.com Dating to 1963, "Protect Your Hearing" was made by the Bray Studios on behalf of David Clark Co., a leading manufacturer of hearing protective devices. 0:00 The film opens with traffic scenes in a metropolitan city, including cars and trucks and heavy equipment, and introduces the topic of noise. It explains that noise is a common byproduct of modern civilization and that most people have learned to live with it. Construction workers operate a jackhammer. Noise is defined as any sound that a person hears and dislikes. 0:45 - 2:05 A rocket launch. The discussion focuses on how noise has increased with technological advancements. The example of a welder is presented, highlighting the importance of protecting one's ears from harmful noise, much like protecting eyes from sparks. 2:05 - 3:40 The film delves into the science of sound, explaining frequency and intensity. It describes how human hearing is sensitive to frequencies between 20 and 20,000 cycles per second, with the most important frequencies for understanding speech being between 500 and 2,000 cycles per second. 3:40 - 5:00 Animation shows the anatomy of a human ear. The ear's sensitivity to sound is explained, including how different sounds are perceived at varying intensities, from whispers (20 dB) to jet engines (140 dB). The importance of protecting the ear from extreme sounds is emphasized. 5:00 - 6:18 The anatomy of the ear is discussed, with a focus on how sound travels through the ear, from the external ear to the inner ear. The inner ear’s microscopic hairs that respond to sound are explained, as well as the importance of protecting against hearing loss from excessive noise. 6:18 - 8:00 A big construction site with cranes. The film describes two types of hearing loss: sudden and gradual. Gradual hearing loss occurs from prolonged exposure to noise levels ranging from 85 to 130 dB, and the fatigue of hair cells in the inner ear can result in permanent hearing loss. 8:00: Preventative methods. The importance of measuring and monitoring noise levels in workplaces is discussed. Steps are outlined to reduce noise, including isolating noisy areas and providing regular hearing checks for employees. Hearing test. 9:38: Different forms of hearing protection are introduced, such as earplugs, headphones and earmuffs. The importance of proper fit is emphasized for earplugs, and the benefits of muff-type ear protectors are highlighted as they offer better protection and comfort. 12:01: An airport is shown with a Pan Am jet. The film shows how earmuffs protect workers in extreme noise environments, such as mechanics working near jet engines. It stresses the importance of using the right ear protection for various levels of noise exposure. 13:20:The film concludes with a reminder to wear proper hearing protection in high-noise areas. It encourages individuals to protect their hearing, emphasizing that hearing is a precious gift and the responsibility to safeguard it is essential for both personal well-being and family. 14:20: The film closes with music, underscoring the importance of hearing protection. Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=1xYK1kYf3vk Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Sat, 13 Jun 2026 13:16:26 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/da650167-a3ff-4880-bdb4-ca71f1e4de17 All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.