Ten real historic seismographs and seismometers: Milne pendulums, Wiechert instruments, a Kinemetrics recorder, museum seismographs, and a WWSSN standard seismometer. Attribution: 1. File:Milne's duplex pendulum seismometer (restored) - National Museum of Nature and Science, Tokyo - DSC07160.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Milne%27s_duplex_pendulum_seismometer_(restored)_-_National_Museum_of_Nature_and_Science,_Tokyo_-_DSC07160.JPG; resized and fitted into a 9:16 video. 2. File:Milne horizontal pendulum seismograph (cultural asset of national importance) - National Museum of Nature and Science, Tokyo - DSC07174.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Milne_horizontal_pendulum_seismograph_(cultural_asset_of_national_importance)_-_National_Museum_of_Nature_and_Science,_Tokyo_-_DSC07174.JPG; resized and fitted into a 9:16 video. 3. File:Wiechert vertical seismograph Preserved in CWB.JPG; SSR2000; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Wiechert_vertical_seismograph_Preserved_in_CWB.JPG; resized and fitted into a 9:16 video. 4. File:Historischer Seismograph.jpg; Ilyacadiz; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Historischer_Seismograph.jpg; resized and fitted into a 9:16 video. 5. File:Kinemetrics seismograph.jpg; Yamaguchi先生; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Kinemetrics_seismograph.jpg; resized and fitted into a 9:16 video. 6. File:Seismograph - National Museum of Nature and Science, Tokyo - DSC07162.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Seismograph_-_National_Museum_of_Nature_and_Science,_Tokyo_-_DSC07162.JPG; resized and fitted into a 9:16 video. 7. File:Seismograph - National Museum of Nature and Science, Tokyo - DSC07171.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Seismograph_-_National_Museum_of_Nature_and_Science,_Tokyo_-_DSC07171.JPG; resized and fitted into a 9:16 video. 8. File:Seismometer (vertical), made for the World Wide Standard Seismological Network by Spregnether Instrument Company, St. Louis, MO, 1961-1962 - National Museum of American History - DSC00023.jpg; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Seismometer_(vertical),_made_for_the_World_Wide_Standard_Seismological_Network_by_Spregnether_Instrument_Company,_St._Louis,_MO,_1961-1962_-_National_Museum_of_American_History_-_DSC00023.jpg; resized and fitted into a 9:16 video. 9. File:Seismograph with record of Bay of Plenty earthquake, March 2, 1987 - Faraday Museum of Technology - Napier, NZ - DSC05509.jpg; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Seismograph_with_record_of_Bay_of_Plenty_earthquake,_March_2,_1987_-_Faraday_Museum_of_Technology_-_Napier,_NZ_-_DSC05509.jpg; resized and fitted into a 9:16 video. 10. File:Seismograph in Shimla House Pune.jpg; अक्षय विनायकराव तायडे; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Seismograph_in_Shimla_House_Pune.jpg; resized and fitted into a 9:16 video.