"IBM Model M Keyboard" (https://skfb.ly/6ZFM6) by timblewee is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).


Sound Effect by <a href="https://pixabay.com/users/freesound_community-46691455/?utm_source=link-attribution&utm_medium=referral&utm_campaign=music&utm_content=70364">freesound_community</a> from <a href="https://pixabay.com/sound-effects//?utm_source=link-attribution&utm_medium=referral&utm_campaign=music&utm_content=70364">Pixabay</a>

<a href="https://www.freepik.com/free-video/melbourne-central-business-district-4k_30419#fromView=search&page=1&position=4&uuid=9923e224-66ae-4c80-9bfa-a5e493a9a77e">Video by freepik</a>

https://www.flickr.com/photos/mratzloff/

<a href="/free-video/particles-form-sperm-fly-blue-background-looped_3384204#fromView=search&page=1&position=19&uuid=a51b09d8-87c3-4366-b251-d225359ce236">Image by igva on Freepik</a>

<a href="/free-video/fiber-optics-macro-shot-09_4786#fromView=search&page=1&position=1&uuid=a51b09d8-87c3-4366-b251-d225359ce236">Image by freepik</a>

Quarter Horse race_1-2.aif by Canukfa -- https://freesound.org/s/143304/ -- License: Attribution 3.0

traffic horns city nervous busy.wav by klankbeeld -- https://freesound.org/s/180156/ -- License: Attribution 4.0

air horn close and loud.WAV by goose278 -- https://freesound.org/s/174819/ -- License: Creative Commons 0

traffic along flat LONG 130104_00.flac by klankbeeld -- https://freesound.org/s/174242/ -- License: Attribution 4.0

tv on hum off.wav by ERH -- https://freesound.org/s/30950/ -- License: Attribution 4.0

By https://wellcomeimages.org/indexplus/obf_images/cf/b3/f349e25738a53202dd1418f1a8c6.jpgGallery: https://wellcomeimages.org/indexplus/image/L0060175.htmlWellcome Collection gallery (2018-03-30): https://wellcomecollection.org/works/fpnvsmum CC-BY-4.0, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=36214623

falling on floor by skradz -- https://freesound.org/s/268166/ -- License: Creative Commons 0