PHYSICS OF SOUND & ACOUSTICS "A LOOK AT SOUND" 1970s SCIENCE FILM MAGNETIC TAPE RECORDING 64984
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- Опубликовано: 6 сен 2024
- This mid-1970s documentary “A Look at Sound” is part of the “Life Around Us” series and was directed by Tom Spain, and narrated by Dan Ingram. A man topples a tree with a chainsaw. Big Ben rings. A ballerina spins in a music box. A woman wearing a felt hat is part of a Princeton football crowd. A police car speeds past (1:10-3:01). Various decibel sound waves and examples are shown (3:16-3:48). A street noise barometer in Tokyo displays to traffic, including a Toyota 1000 (3:49-4:26). A pebble dropped in a still pond creates waves (4:28-4:52). A modern version of Robert Boyle’s 1657 invention shows a ringing bell inside a glass jar with an air pump (5:17-6:15). Boys put their ears to a train track. They talk through tin cans joined by a long string (6:16-6:45). An animated diagram shows sound waves inside a concert hall and a yodeler (7:00-7:52). A telescope visualizes voice sound patterns in sonorous figures (7:54-8:16). Turpentine poured on a membrane and vibrated at various frequencies creates predictable patterns (8:17-8:54). Sand on a metal plate vibrated at a high frequency rearranges into patterns (9:55-9:10). Two liquids vibrated create figurative patterns (9:12-9:28). Iron filings appear to walk together when vibrated (9:29-9:45). Animation explains hearing via the eardrum, middle ear, and brain (9:46-11:15). Vibrations are shown at various cycles per second. A porpoise uses its skills, and slow-motion footage of a bat shows echolocation (11:17-13:35). Thomas Edison’s 1877 drawings and his photo taken by Matthew Brady show the first phonograph, advertised on a horse-drawn carriage. A nickel machine would make a phonograph play. Multiple people listen through tubes to the same photograph (13:36-15:39). 1916, The Dixieland Jazz Band records into giant megaphones in a New York studio. 1973, Credence Clearwater records “Lodi” to magnetic tape (15:40-17:40). United Technology Center scientists experiment with sounds using flames, apples, and rats that choose to listen to Mozart or Schoenberg (17:42-19:29). A couple in 1970s pajamas sleep soundly through city noise but he answers the ringing wall rotary telephone. She wakes up when the baby cries (19:30-20:55). An experiment recorded an extremely busy highway outside a neighborhood and interviewed occupants. A women in a mini-dress gets her mail. The main complaints were dogs, airplanes, and motorcycles (20:57-22:15). A woman holds a radio up to her ear as she walks; a toddler pounds a pan with a wooden spoon; a smiling woman dances at a 1970s club; cars honk at a traffic jam, and a car peels out (22:30-23:12). At Rio de Janeiro, a man jackhammers, 1970s dressed women talk on the street, motorcycles are started, and car doors are slammed for their sound (23:14-24:18). A Concorde flies; animation explains sonic booms (24:20-24:42). People take hearing tests (24:43-26:15). A woman walks past loud construction with her fingers in her ears. A Lufthansa worker wears safety headphones, as do elephants at a zoo, and pedestrians (26:17-27:22). A child listens against soundproof glass (27:24-27:56).
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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 www.PeriscopeFi...
Perfect to sample
"an experiment part of every high school classroom today"... Unfortunately, I don't think many classrooms are doing the vacuum jar sound experiment anymore. Great doc!
Thanks for sharing
1970s