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United States CIRCA 1980s: Waves. Tower.
A sound engineer and radio technician uses an oscilloscope to display and illustrate the frequencies and pitch of sound in 1947, to his younger cousin. (1940s)
1970s: Electrical waves. Newspaper clippings of job postings. Electronics manufacturing plant "UNIVAC" building. Inside of plant floor, employees.
CIRCA 1953 - In this sci-fi film, a UFO is tracked from Alaska to Vancouver, Canada.
1960s: Illustration of blue line moving up and down, followed by orange line up and down. Detector, a scientific equipment piece, in a lab.
1970s: machine measuring the crest and trough of sound wave
1970s: Guidance counselor talks to students at table and hands out papers and pamphlets. Girl adjusts knobs on electronics scopes. Man and woman sit on couch and talk.

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1089061133
影片 說明

素材 影片 編號: 1089061133

1960s: Illustration of blue line moving up and down, followed by orange line up and down. Detector, a scientific equipment piece, in a lab.

重要資訊

影片 格式

畫面播放速率

  • 每秒格數 (FPS):24

長度

  • 0:31

影片 投稿人

AV GeeksAV Geeks

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